Class / Patent application number | Description | Number of patent applications / Date published |
324761010 | Test of solar cell | 85 |
20110012636 | MEASURING METHOD AND DEVICE FOR CHARACTERIZING A SEMICONDUCTOR COMPONENT - A measuring method for characterizing a semiconductor component ( | 01-20-2011 |
20110043241 | Light emitting bio-mimicry device - A system and method are provided for mimicking a bioluminescent signal from an animal or an insect, such as a firefly. A first version includes a controller, an electrical energy battery, a solar energy collector and a light emitting device. The solar energy collector receives sunlight and converts the sunlight to electrical energy that is stored in the battery. The electrical energy battery provides electrical energy to the light emitting device under management by the controller, and may comprise two or more battery cells or circuits. A time sequence for energizing the light emitting device may be applied to cause the light emitting device to mimic a bioluminescent lighting pattern generally exhibited by a selected species of insect or animal. A light emitting diode may be used with a voltage source and a voltmeter to detect the approximate intensity of light of an ambient environment surrounding the device. | 02-24-2011 |
20110068817 | SOLAR CELL OUTPUT CHARACTERISTIC EVALUATION APPARATUS AND SOLAR CELL OUTPUT CHARACTERISTIC EVALUATION METHOD - [Object] To provide a solar cell output characteristic evaluation apparatus and a method thereof capable of accurately measuring an open-circuit voltage Voc by applying a forward bias current with a minimum power consumption without requiring a bipolar power supply discharging a large current causing a cost increase. | 03-24-2011 |
20110148452 | Systems, Circuits, and Methods For Monitoring Solar Cells of an Adaptive Solar Power System - A back sheet comprises an interconnect circuit coupling a plurality of solar cell tiles. A tiled solar cell, comprising a solar cell and encapsulating and glass layers, is inserted into the solar cell tiles. Each solar cell is individually addressable through the use of the interconnect circuit. As such, each solar cell may be individually monitored through the utilization of the interconnect circuit of the back sheet. | 06-23-2011 |
20110148453 | INSPCTING APPARATUS FOR PHOTOVOLTAIC DEVICES - Provided is an inspecting apparatus for inspecting a photovoltaic devices by applying a current to the photovoltaic devices in a forward direction to make the photovoltaic devices emit EL light which is simple in structure and capable of shortening inspection time in inspecting a defect from a photographed image with a perfect resolution. | 06-23-2011 |
20110204916 | METHOD AND DEVICE FOR IDENTIFYING LOW-OUTPUT PV MODULES IN A PV SYSTEM - A method and a device for carrying out the method are disclosed in order to aid in the search for faulty photovoltaic modules. In a photovoltaic system comprising multiple PV units electrically connected in parallel, each PV unit is assigned its own fixed current sensor. Furthermore, each PV unit can be removed from the parallel circuit by a switching device. | 08-25-2011 |
20110227598 | APPARATUS AND METHOD FOR INSPECTING HOMOGENEITY OF SOLAR CELL QUANTUM EFFICIENCY USING IMAGING DEVICE - The present invention relates to an apparatus and a method for inspecting quantum efficiency homogeneity of a solar cell using a spatial light modulating device. The apparatus includes a light emitting device configured to radiate predetermined light; a spatial light modulating device configured to change a light path of rays emitted from the light emitting device according to individual control of a plurality of pixels; a spatial light modulating device controller configured to individually control the states of the plurality of pixels; a solar cell which the rays passing through or reflected from the spatial light modulating device irradiate; and a calculation controller configured to calculate quantum efficiency of the solar cell based on a photocurrent signal generated from the solar cell. | 09-22-2011 |
20110241719 | SOLAR CELL MEASUREMENT SYSTEM AND SOLAR SIMULATOR - A measurement system having a light source, a holding device, and a measurement device. The light source includes a plurality of light emitting diodes (LEDs) configured to generate light beams with different wavelengths, and the emission spectrum of the light source complies with a predetermined standard. The holding device is configured to hold an object under test. The measurement device is configured to measure the electrical properties of the object under test after the object under test is illuminated by the light source. | 10-06-2011 |
20110241720 | DC TEST POINT FOR LOCATING DEFECTIVE PV MODULES IN A PV SYSTEM - A method and an apparatus for carrying out the method are proposed for identifying defective photovoltaic modules. Two clamp-on ammeters are provided which are connected to a test data acquisition unit for simultaneous measurement of two DC currents. The position of the clamp-on ammeters at the time of the measurement is determined with a position registration means, and measured data and position data are transmitted via an antenna to a data processing center or recorded in a data memory element for further processing. | 10-06-2011 |
20110267090 | METHOD OF TESTING SOLAR CELLS - A method of measuring the efficiency with which a solar cell converts incident photons into charge carriers, including the following steps: (a) illuminating the solar cell with a broadband light source; (b) illuminating the solar cell with the broadband light source of which the intensity of a selected range of wavelengths has been reduced; (c) determining the change in the number of photons incident on the cell and the change in the number of charge carriers produced by the cell between steps (a) and (b); and (d) using the changes determined in step (c) to calculate the said efficiency measure. | 11-03-2011 |
20110279141 | High Throughput Current-Voltage Combinatorial Characterization Tool and Method for Combinatorial Solar Test Substrates - Measuring current-voltage (I-V) characteristics of a solar cell using a lamp that emits light, a substrate that includes a plurality of solar cells, a positive electrode attached to the solar cells, and a negative electrode peripherally deposited around each of the solar cells and connected to a common ground, an articulation platform coupled to the substrate, a multi-probe switching matrix or a Z-stage device, a programmable switch box coupled to the multi-probe switching matrix or Z-stage device and selectively articulating the probes by raising the probes until in contact with at least one of the positive electrode and the negative electrode and lowering the probes until contact is lost with at least one of the positive electrode and the negative electrode, a source meter coupled to the programmable switch box and measuring the I-V characteristics of the substrate. | 11-17-2011 |
20110316578 | CHARACTERISTIC MEASURING DEVICE FOR SOLAR CELL - A solar cell characteristic measuring device measures the output characteristics of a solar cell while avoiding junction capacitance. The device provides a solar cell load circuit by connecting the solar cell with an electronic load device setting a load current or voltage variably, and a measurement circuit connecting voltage and current detectors with the load. An operation point control element divides the magnitude of the load, taken from the solar cell, of the electronic load device into a plurality ranging from states of opening to short-circuiting, while driving the load device in the load circuit periodically and intermittently, changing the load magnitude stepwise and controlling the operation point of the solar cell, and a processing element reading and processing the detected values of the voltage and current detectors at each drive period of the electronic load device and for the period of the stable output voltage of the solar cell. | 12-29-2011 |
20120038385 | IN-PROCESS MEASUREMENT APPARATUS - An in-process measurement apparatus can be used to determine characteristics of a photovoltaic module. Capacitance measurements of the photovoltaic module are conducted before, during, or after execution of a high-potential leakage test, a performance test, or other tests of the module. The capacitance measurements are used to determine the characteristics of the photovoltaic module, including information regarding depletion width, doping density, film layer thickness, trap concentrations and absorber thickness. The apparatus can also be used to ensure that photovoltaic modules conform to product specifications. | 02-16-2012 |
20120043988 | SOLAR COMBINER WITH INTEGRATED STRING CURRENT MONITORING - A combiner that calculates energy produced by each panel feed during the daytime, and calculates a resistance value needed to calculate the energy by injecting a known current into each panel feed at nighttime and measuring the resulting voltage across a resistive element in each panel feed. A voltage tap across the protection device in each panel feed allows logic and control circuitry to measure the voltage across each protection device. At nighttime, a known current is injected into each panel feed and the voltage across each protection device is measured. Plugging the current and voltage into Ohm's Law, a resistance of each protection device is calculated, then that resistance value is used during the daytime to calculate energy produced by each string in real time and to monitor each string's performance. When an individual string's performance wanes, an alarm is indicated to help the operator troubleshoot which individual panel(s) within the string is responsible for that string's underperformance. | 02-23-2012 |
20120043989 | INSPECTION METHOD AND INSPECTION APPARATUS - An inspection method, including: measuring an impedance of a cell structure of an inspection object that includes one or a plurality of serially-connected cell structures each including a transparent electrode layer formed on a substrate, a porous semiconductor layer formed on the transparent electrode layer, a porous insulator layer formed on the porous semiconductor layer, and a counter electrode layer formed on the porous insulator layer; and judging a quality of the inspection object based on the measured impedance of the cell structure. | 02-23-2012 |
20120056638 | SYSTEMS AND METHODS FOR MONITORING AND DIAGNOSTICS OF PHOTOVOLTAIC SOLAR MODULES IN PHOTOVOLTAIC SYSTEMS - A method and system for monitoring a photovoltaic module. The method includes initiating a monitoring process for a photovoltaic module at a predetermined time. The photovoltaic module is connected to at least another module in a photovoltaic string as a part of a photovoltaic array. Additionally, the method includes measuring one or more parameters of the photovoltaic module by a monitoring circuit. The one or more parameters include a module current flowing through the photovoltaic module, a module voltage across the photovoltaic module, and a module temperature of the photovoltaic module. Also, the method includes collecting one or more measurement results of the one or more parameters, transmitting the one or more collected results using one or more radio-frequency signals, and processing information associated with the one or more transmitted results. | 03-08-2012 |
20120062265 | METHOD OF DIAGNOSING THE FAILURE OF A PHOTOVOLTAIC GENERATOR - Method of diagnosis for a photovoltaic generator characterized in that it implements a step of observing the evolution of its voltage when it passes from a short-circuit mode of operation to an open-circuit mode or vice versa. | 03-15-2012 |
20120068729 | METHOD FOR DETERMINING THE PARAMETERS OF A PHOTOVOLTAIC DEVICE - A method for determining the parameters of a photovoltaic device having at least one multi-junction solar cell is provided. The solar cell includes at least two subcells layered on top of one another and connected electrically and optically in series, each having a p-conductive layer, an intrinsic layer, and an n-conductive layer. At least one reference cell is produced for each subcell. One subcell of each reference cell corresponds to one subcell of the at least one multi-junction solar cell. In contrast, the subcell of each reference cell has at least one layer which corresponds to the i-layer of the multi-junction solar cell, but which is converted into an electrically conductive layer by doping. The spectral sensitivity of the reference cells is measured. For determining the parameters of the solar cell, the reference cells and the solar cell are measured using a solar simulator calibrated to the reference cells. | 03-22-2012 |
20120200311 | PHOTOVOLTAIC DEVICE WITH ELECTRONIC SWITCH(ES) - Photovoltaic device comprising a photovoltaic generator comprising a number of photovoltaic cells, characterized in that it comprises at least one switch with a control device comprising a control capacitor (Ccde) and a control resistor (Rcde), linked to the switch so as to slow down the control of the opening of the switch, to allow at least one cell of the photovoltaic generator to switch from a short-circuit operating mode to an open-circuit mode, or vice versa. | 08-09-2012 |
20120223733 | Solar Cell Characterization System with an Automated Continuous Neutral Density Filter - Techniques for solar cell electrical characterization are provided. In one aspect, a solar testing device is provided. The device includes a solar simulator; and a continuous neutral density filter in front of the solar simulator having regions of varying light attenuation levels ranging from transparent to opaque, the continuous neutral density filter having an area sufficiently large to filter all light generated by the solar simulator, and wherein a position of the continuous neutral density filter relative to the solar simulator is variable so as to control a light intensity produced by the device. A solar cell electrical characterization system and a method for performing a solar cell electrical characterization are also provided. | 09-06-2012 |
20120223734 | MEASUREMENT OF INSULATION RESISTANCE OF CONFIGURABLE PHOTOVOLTAIC PANELS IN A PHOTOVOLTAIC ARRAY - Methods for measuring insulation resistance in a photovoltaic (PV) array may include partitioning the PV array into groups of PV panels, isolating a group of PV panels selected for an insulation resistance measurement from other groups of panels by setting bypass selectors on each PV panel in the PV array, and making an insulation resistance measurement for the selected group. If a measured value of insulation resistance for a selected group corresponds to an insulation problem in a PV array component, a separate measurement of insulation resistance may be made for each PV panel in the selected group. Insulation resistance measurements may be made accurately and rapidly for large PV arrays without disconnecting and reconnecting cables between panels. Measurements may be made at frequent, regular intervals to permit changes in insulation resistance to be detected before damage from dielectric breakdown occurs. | 09-06-2012 |
20120229161 | Method For Detecting Underperforming Solar Wafers In A Solar Panel or Underperforming Solar Panel in a Solar Array - A method in a solar panel including one or more bypass diodes coupled to one or more sections of solar wafers includes measuring a current flowing through each section of the solar panel; measuring a current flowing through each bypass diode; and assessing the measured current value of the one or more sections of the solar panel and the measured current values of the bypass diodes to determine if the solar panel is malfunctioning. In another embodiment, the method measures a current flowing through the solar panel and through the bypass diodes to determine if the solar panel is malfunctioning. In another embodiment, a method in a solar array determines an underperforming solar panel by measuring the output current and the output voltage of the solar panels in the array. | 09-13-2012 |
20120262199 | Compact High Intensity Solar Simulator - A solar simulator for testing photovoltaic cells is disclosed herein. The solar simulator includes a housing having an opening through which light is emitted. The solar simulator employs a plurality of concave cylindrical mirrors and a plurality of flat mirrors that reflect and redirect images of an illuminated light source such that an observer at a target area outside the housing will perceive multiple instances of the illuminated light source. The housing also contains a flat top cover mirror and a flat bottom cover mirror that function to reflect additional light through the opening and toward the target area. | 10-18-2012 |
20120268158 | FAILURE DETECTING METHOD FOR A SOLAR POWER GENERATION SYSTEM - The present invention discloses a failure detecting method for a solar power generation system having plural solar cell strings in each of which plural solar cell modules are connected to each other in series. In this method, made is a measurement of the current value of each of the solar cell modules or the current value of each of the solar cell strings and the total current value of the whole of the solar power generation system; the measured current value of each of the solar cell modules or the measured current value of each of the solar cell strings is compared with an average current value per one solar cell module or an average current value per one solar cell string that are calculated out from the measured total current value of the whole of the solar power generation system; when the measured current value(s) of one or more of the solar cell modules or the measured current value(s) of one or more of the solar cell strings is/are (each) lower than the calculated average current value per one solar cell module or the calculated average current value per one solar cell string by a predetermined percentage or more, the solar cell module(s) or the solar cell string(s) in the low current value state is/are extracted as failure candidate(s); and then the extracted module(s) or string(s) is/are displayed or notified. | 10-25-2012 |
20120306525 | Method and Device for Determining the Quantum Efficiency of a Solar Cell - A method for determining the quantum efficiency of a solar cell ( | 12-06-2012 |
20120313661 | SOLAR CELL TESTING APPARATUS AND METHOD - A solar cell testing apparatus may include an illuminator for directing light energy on a solar cell under test. The solar cell testing apparatus may also include a device for selectively positioning different filters of a multiplicity of filters in an optical path between the illuminator and the solar cell under test to at least one of measure performance and detect any defects in the solar cell. The multiplicity of filters may include a first set of filters and a second set of filters. Each filter of the first set of filters is adapted for passing a predetermined percentage of intensity of the light energy from the illuminator onto the solar cell under test. The second set of filters being adapted for testing the solar cell under different spectrums of light. | 12-13-2012 |
20130009662 | SOLAR PHOTOVOLTAIC JUNCTION BOX - A solar photovoltaic junction box for being electrically connected to a solar cell array. The junction box comprises a plurality of input branch lines electrically connected to solar cell strings, an output aggregate line that converges the plurality of branch lines, a back-flow preventing diode provided on each of the branch lines, a capacitor parallel-connected to each of the back-flow preventing diodes, an AC voltage generator that is provided on the aggregate line to allow an AC voltage to be applied to the solar cell array, a measuring means for measuring an alternating current flowing in the solar cell array, and a control unit comprising an malfunction determination portion for determining a malfunction in the solar cell array on the basis of the AC voltage applied by the AC voltage generator and the alternating current measured by the measuring means. | 01-10-2013 |
20130015875 | FAILURE DETECTION SYSTEM FOR PHOTOVOLTAIC ARRAYAANM Kumar; ArunAACI Ann ArborAAST MIAACO USAAGP Kumar; Arun Ann Arbor MI US - A process for detecting and terminating a fault in a photovoltaic device is provided that operates in the millisecond or faster timescale. A process includes measuring a current or voltage in each of a plurality of strings relative to a common rail. When the voltage or current from a string is outside a predetermined threshold, a flag is generated indicating the presence of a fault in the string. A control unit will detect the flag and disconnect the faulty string from the system through a switch. The use of continuously rolling averages of baseline currents and voltages as well as a series of measurements averaged to measure the difference of current or voltage at each step provides a process and a fault detection system that does not suffer from false fault detections thereby providing a reliable and efficient system for detecting and terminating faults in photovoltaic devices. | 01-17-2013 |
20130021054 | METHOD AND APPARATUS FOR TESTING PHOTOVOLTAIC DEVICES - The present invention generally relates to an apparatus used for simulating spectrum of solar radiation and testing a photovoltaic device using the simulated spectrum of solar radiation. In one embodiment, the apparatus includes a light-source device configured to reproducing spectrum of solar radiation, the light-source device comprising a radiation plate divided into a plurality of cells, and each of the cells comprises a plurality of light-emitting diodes emitting at least two different wavelengths, and a substrate support disposed opposite to the light-source device. In one example, the plurality of light-emitting diodes emit a wavelength that is selected from the group consisting of colors blue, green, yellow, red, a first and a second color in infrared having different wavelengths with respect to each other. | 01-24-2013 |
20130063174 | SOLAR SIMULATOR AND SOLAR CELL INSPECTION DEVICE - A solar simulator in which locational unevenness of irradiance is reduced by using a small and simple optical system, having an array of light emitters | 03-14-2013 |
20130069687 | SOLAR SIMULATOR AND SOLAR CELL INSPECTION DEVICE - A solar simulator having improved measurement precision, including an array of light emitters having point light emitters planarly arranged in a given range, an effective irradiated region spaced apart from a surface having the array thereon, and a portion which absorbs at least a part of light from a direction which passes through a gap between the individual point light emitters. In a preferred aspect, the light absorption portion includes an absorption surface disposed in at least a part of the gaps between the light emitters. In another preferred aspect, a translucent board holds the light emitters and has a translucent portion corresponding to at least a part of the gaps between the light emitters, and an absorption layer at a position for absorbing light from the direction which passes through the translucent portion. | 03-21-2013 |
20130088252 | METHOD FOR DIAGNOSIS OF CONTACTS OF A PHOTOVOLTAIC SYSTEM AND APPARATUS - A method for monitoring of contacts of a photovoltaic system includes injection of a test signal having a plurality of frequencies, into the photovoltaic system, and determining a generator impedance of the photovoltaic system by evaluating a response signal associated with the test signal. The method further includes monitoring of contacts of the photovoltaic system independently of operating states of the photovoltaic system by modelling of an alternating-current response of the photovoltaic system based on the determined generator impedance, wherein the modelling is specific to at least two different operating states of the photovoltaic system. | 04-11-2013 |
20130120017 | DEVICE AND METHOD FOR MONITORING A PHOTOVOLTAIC SYSTEM - A device and corresponding method for monitoring a photovoltaic system to detect an occurrence of events impairing normal operation of the photovoltaic system is provide. The photovoltaic system includes a photovoltaic generator including a first group of photovoltaic modules and a second group of photovoltaic modules being different from the first group. The device includes a first and a second pair of coupling means, both pairs including signal coupling-in means for coupling a test signal into the photovoltaic generator, and a signal coupling-out means for coupling out a response signal from the photovoltaic generator, the first pair of coupling means configured to selectively detect the occurrence of the events in the first group of photovoltaic modules, and the second pair of coupling means configured to selectively detect the occurrence of the events in the second group of photovoltaic modules. | 05-16-2013 |
20130141133 | Apparatus and Method for Monitoring a Photovoltaic System - The apparatus for monitoring a photovoltaic system includes an incoupling circuit configured to couple an AC voltage test signal into the photovoltaic system, and an outcoupling circuit configured to outcouple a response signal, which is associated with the test signal, from the photovoltaic system, and an evaluation device, which is connected to the outcoupling circuit. The evaluation device is configured to identify events which adversely affect correct operation of the photovoltaic system. The apparatus is distinguished in that the outcoupling circuit includes a first transformer and a second transformer, each having a respective primary winding and each having a respective secondary winding which is connected to the evaluation device, with the primary windings of the first and second transformers being arranged in different electrical lines between a generator and an inverter in the photovoltaic system. The disclosure also relates to a corresponding method for monitoring a photovoltaic system. | 06-06-2013 |
20130147508 | Solar Simulator - An apparatus for testing photovoltaic cells wherein an array of light sources are provided. The light sources can have a collimating lens. In addition, one or more feedback circuits can be provided which monitor and maintain one or more of the light sources. | 06-13-2013 |
20130154683 | ELECTRICAL CHARACTERISTIC MEASURING APPARATUS AND METHOD OF SOLAR CELL - In one exemplary embodiment, an electrical characteristic measuring apparatus of solar cell comprises a resilient metal attached to a bus bar of a solar cell and a conducting device located at one end of the resilient metal. The resilient metal has an open via, and the conducting device contacts with the bus bar through the open via. The electrical characteristic measuring apparatus is attached to the bus bar located at a front plane of solar cell. The resilient metal and the conducting device, respectively, connect electrically to a testing device contacted to electrode located at the back plane of solar cell. Thus the resilient metal, the testing device, and the electrode of the back plane form a current measuring loop, and the conducting device, the testing device, and the electrode of the back plane form a voltage measuring loop. | 06-20-2013 |
20130169306 | Light Source Evaluation Device and Solar Cell Evaluation Device - With a light source evaluation device | 07-04-2013 |
20130176049 | SOLAR GENERATOR - A solar generator for spacecraft or satellites, including a solar panel, a detector layer, a first evaluation means and a second evaluation means. The solar panel includes a plurality of solar cells. The detector layer includes first conductors substantially in parallel in a first plane and second conductors substantially in parallel in a second plane. The second plane is substantially in parallel to the first plane such that the first conductors are at an angle to the second conductors. The first evaluation means is for detecting a failure of one or more of the plurality of solar cells. The second evaluation means is for testing electrical status of the first conductors and the second conductors to determine whether the failure detected by the first evaluation means was caused by a space object damaging or severing one or more of the first conductors and the second conductors. | 07-11-2013 |
20130181736 | I-V MEASUREMENT SYSTEM FOR PHOTOVOLTAIC MODULES - An apparatus for measuring electrical characteristics of solar panels (photovoltaic modules) wherein the apparatus measures current versus voltage (“I-V”) relationships for both illuminated (“light I-V”) and/or non-illuminated (“dark I-V”) conditions; optionally provides single, dual, or four-quadrant source/sink capability; and measures one or more devices under test (DUTs). The apparatus comprises one or more source measurement units (SMUs), wherein each SMU is connected to one DUT, and optionally includes a positive high-voltage programmable power supply and/or a negative high-voltage programmable power supply. Additionally, the apparatus includes a controller which controls the functions of the SMUs, the high-voltage supplies, and other components of the apparatus, wherein the controller communicates with the SMUs over a signal bus. Finally, the apparatus may include a computer to provide a user interface, communicate with the controller to initiate measurements and record results, analyze resulting data to determine measured parameters, and/or store the measured data. | 07-18-2013 |
20130200918 | TESTING APPARATUS FOR PHOTOVOLTAIC CELLS - The present invention allows simultaneous measurement of current and voltage produced by a PV cell by removably pressing first and second parallel spaced apart closely adjacent sensing conductors, electrically insulated from each other, onto a current carrying conductor on a front side of the PV cell to make electrical contact therewith, while removably pressing at least one reference contact to a reference conductor on the rear side of the PV cell to make electrical contact therewith. Current is conducted from the current carrying conductor on the front side, through the first sensing conductor to current measuring circuitry and through the at least one reference contact back to the rear side reference conductor. Voltage is sensed at the second sensing conductor relative to the rear side reference conductor, using voltage measuring circuitry. | 08-08-2013 |
20130265077 | SOLAR CELL TESTING SYSTEM, SOLAR CELL TESTING METHOD, AND MULTIFUNCTIONAL TESTING LIGHT SOURCE - A solar cell testing system includes a multifunctional testing light source, a measuring unit, and an arithmetic unit. The multifunctional testing light source is configured to be switched to output a simulated solar light to a solar cell or asynchronously output a plurality of narrowband lights to the solar cell. The measuring unit is coupled to the solar cell and measures the solar cell's response to the simulated solar light and response to the asynchronously outputted narrowband lights. The arithmetic unit is coupled to the multifunctional testing light source and the measuring unit; it determines the solar cell's conversion efficiency and spectral response based on the solar cell's response to the simulated solar light and response to the asynchronously outputted narrowband lights. | 10-10-2013 |
20130300449 | Solar Power Generation System, Abnormality Detection Method, and Abnormality Detection System - In order to provide a system which detects and classifies abnormality in a solar battery even during power generation, an output voltage and an output current of the solar battery during power generation are detected, and a solar battery characteristic equation and a threshold value for detecting an abnormal state are calculated using the detected voltage value and current value and the measurement data of an external environment measurement unit. The kind of abnormal state of the solar battery is classified using the calculation result of the characteristic equation and the threshold value. | 11-14-2013 |
20130314118 | TESTING METHOD OF A SOLAR CELL PANEL, AND TESTING APPARATUS THEREOF - A testing method of a solar cell panel of the present invention, includes steps of: (a) providing an ambient light with steady illumination to the surface of a solar cell panel to introduce a steady signal to its electrical output; (b) providing a modulation light to a given area of the solar cell panel to introduce a modulated signal to its electrical output corresponding to the given area; and (c) analyzing electrical output of the solar cell panel to obtain electrical properties corresponding to the given area. The testing method can test the solar cell panel efficiently, detect and locate defects accurately so that the defects can be corrected and feed back to improve manufacturing process. | 11-28-2013 |
20130321021 | STARTING OF PHOTOVOLTAIC SYSTEM - A method and arrangement of determining starting conditions of a solar converter in a photovoltaic system. The photovoltaic system includes a photovoltaic panel system having one or more photovoltaic panels. The method includes determining an open circuit voltage of the photovoltaic panel system, and determining beforehand limit values for the starting conditions, where the limit values include an open circuit voltage value and a temperature value, with which values the solar converter can be started. The method also includes determining beforehand the temperature dependency of the open circuit voltage of the panel system, determining a temperature of the panel system, and setting a criterion for starting the converter. The criterion includes determining, by using the determined temperature dependency and the determined limit values for the starting conditions, whether the determined temperature and the determined open circuit voltage enable the starting of the converter. | 12-05-2013 |
20130328587 | LED SOLAR SIMULATOR - An LED based solar simulator and method. An emitter plane includes an array of quarter panels below a test plane. Each quarter panel includes multiple close pitch LEDs of different wavelengths in an array, a plurality of LEDs for select wavelengths per quarter panel, and one or more different wavelength LEDs in a plurality of class A wavelength intervals in order to more closely match the solar spectrum. | 12-12-2013 |
20140002125 | INSPECTING DEVICE AND INSPECTING METHOD | 01-02-2014 |
20140043056 | EVALUATION METHOD FOR SOLAR MODULE AND MANUFACTURING METHOD FOR SOLAR MODULE - Provided is a method for evaluating a solar cell incorporated into a solar module. A PL evaluation step is performed. The PL evaluation step is a step for evaluating the solar cell to be evaluated among a plurality of solar cells ( | 02-13-2014 |
20140049282 | LENSING SYSTEM AND METHOD FOR PHOTOVOLTAIC DEVICES - A photovoltaic device includes a substrate extending between opposite edges, a plurality of photovoltaic cells electrically coupled with each other in series, wherein the plurality of photovoltaic cells includes at least one current-limiting photovoltaic cell, and at least one corrective optic lens positioned over the at least one current-limiting photovoltaic cell. The at least one corrective optic lens is configured to focus light into the at least one current-limiting photovoltaic cell so that current passing through the current-limiting photovoltaic cell is boosted. A monitoring system may include at least one light source aligned with at least one of the plurality of photovoltaic cells. The light source(s) may be configured to emit light into the at least one of the plurality of photovoltaic cells to determine if the power output of the photovoltaic device remains constant. | 02-20-2014 |
20140070836 | APPARATUS FOR SIMULATING SUNLIGHT - An apparatus for simulating sunlight includes a light source for generating light rays, a first reflector having a curved surface that is disposed to receive and reflect the light rays from the light source to form first reflected parallel light rays that travel in a first direction, and a second reflector disposed to face the first reflector and disposed to receive and reflect the first reflected parallel light rays from the first reflector to form second reflected parallel light rays that travel in a second direction. The first and second directions are mutually orthogonal. | 03-13-2014 |
20140070837 | SOLAR MONITOR FOR SOLAR DEVICE - A solar monitor measures electrical characteristics of a designated solar device within an array of solar devices that are coupled in series. The solar monitor includes a charge storage element and a charger coupled to the charge storage element to establish a positive voltage and/or a negative voltage on the charge storage element. A switch within the solar monitor is coupled in a shunt configuration with the designated solar device and with a subsequent device in the array. The switch selectively couples the charge storage element to the designated solar device to vary an operating current that flows between the designated solar device and the subsequent solar device. The solar monitor includes a current detector to measure the current of the designated solar device, and a voltage detector to measure the voltage of the designated solar device. | 03-13-2014 |
20140111240 | METHOD AND DEVICE FOR CHECKING THE OPERATION OF A PHOTOVOLTAIC MODULE - A method for checking the operation of a photovoltaic module of a photovoltaic power station. The module has a positive terminal, a negative terminal and a number of solar cells, in particular thin-layer solar cells. An electric field emitted by the photovoltaic module as a result of solar radiation is measured at an exposed measurement location during the operation of the power station and the electrical voltage present between the positive terminal and the negative terminal is determined from the measured electric field. A corresponding measuring instrument has a sensor to be placed near the photovoltaic module so as to measure the electric field strength. A rod or wand may be used to position the sensor, or a robot may be configured for automatic travel on the photovoltaic module. | 04-24-2014 |
20140132301 | WIRELESS CURRENT-VOLTAGE TRACER WITH UNINTERRUPTED BYPASS SYSTEM AND METHOD - A measurement instrument capable of electrically isolating the connected photovoltaic (“PV”) module in an array of PV modules to perform a health diagnosis including of current versus voltage measurements on the attached device by using a resistive load to acquire the current-voltage (“IV”) curve in the positive power quadrant of the module. The instrument is capable of switching a charge storage element into the array during the period when the solar module is under test to provide uninterrupted electrical power to the PV array. The measurement instrument contains a battery and charger allowing the device to run from the connected PV module's energy. The instrument contains a microprocessor to allow a high degree of configuration through software, including altering the speed of an IV sweep, the interval between sweeps, and integrating temperature and tilt measurements. The instrument is equipped with low power radio devices to communicate wirelessly, further negating the need for a common ground. | 05-15-2014 |
20140132302 | METHOD FOR MEASURING POTENTIAL INDUCED DEGRADATION OF AT LEAST ONE SOLAR CELL OR OF A PHOTOVOLTAIC PANEL AS WELL AS THE USE OF SAME METHOD IN THE PRODUCTION OF SOLAR CELLS AND PHOTOVOLTAIC PANELS - The invention relates to a method for measuring the high-voltage induced degradation (PID) of at least one solar cell. According to the invention, a conductive plastic material is pressed on the upper side or bottom side of the respective solar cell, in particular on the front side thereof, and a DC voltage greater than 50 V is applied between the plastic material and the respective solar cell. Alternatively, corona discharges may be applied to solar cells or photovoltaic modules. In one embodiment, a characteristic electric parameter of the respective solar cell or of the photovoltaic module is repeatedly measured at time intervals. The method according to the invention can be carried out on individual solar cells, which can be further processed directly after passing the test and without further complex processing, e.g. to a photovoltaic module. In principle, the method is also suitable for measurements on complete photovoltaic modules. | 05-15-2014 |
20140159763 | SOLAR PHOTOVOLTAIC SYSTEM AND A METHOD FOR ENERGY HARVEST OPTIMIZATION THEREOF AND A METHOD FOR FAULT DETECTION THEREOF - This invention provides a solar photovoltaic system, comprising: a plurality of photovoltaic assemblies, for harvesting solar energy to generate DC currents; a plurality of micro-optimizers having input terminals coupled to the photovoltaic assemblies and having output terminals connected in series with each other, for optimizing output currents and/or output voltages of the photovoltaic assemblies, to generate maximum power; a manager configured to communicate with the plurality of micro-optimizers, for managing operating states of the micro-optimizers; and an inverter coupled to one or more strings of the micro-optimizers, for converting the optimized DC currents into AC currents and outputting the AC currents to a power grid. This invention further provides a method for energy harvest optimization and a method for fault detection of a solar photovoltaic system. | 06-12-2014 |
20140176179 | PSEUDO-SOLAR RADIATION DEVICE - A simulated sunlight irradiation apparatus of the present invention ( | 06-26-2014 |
20140191776 | METHOD AND SYSTEM FOR TESTING INDIRECT BANDGAP SEMICONDUCTOR DEVICES USING LUMINESCENCE IMAGING - Embodiments of methods and systems for identifying or determining spatially resolved properties in indirect bandgap semiconductor devices such as solar cells are described. In one embodiment, spatially resolved properties of an indirect bandgap semiconductor device are determined by externally exciting the indirect bandgap semiconductor device to cause the indirect bandgap semiconductor device to emit luminescence ( | 07-10-2014 |
20140247066 | DETECTION OF ELECTRICAL ARCS IN PHOTOVOLTAIC EQUIPMENT - A method for detecting a series arc in a photovoltaic device, operating in direct current mode, including N (N=1 or N>1) photovoltaic modules, connected to a charging device having a capacitive behaviour for the modules, the method including: a) detecting, across n of the N modules (1≦n≦N), time evolution of voltage; b) identifying a voltage variation between a first zone of stable voltage and a second zone of stable voltage for a duration of at least 5 μs, which immediately follows the voltage variation; and c) determining whether the voltage variation is between a value Vmin higher than or equal to 0.2 V and a value Vmax lower than or equal to 20 V, with rise time of the variation between a duration Tmin higher than or equal to 0.5 μs and a duration Tmax lower than or equal to 5 μs. | 09-04-2014 |
20140266288 | Electrical Fault Detection - An apparatus for detecting an arc on a circuit having a solar panel assembly is arranged to determine that an output of the solar panel assembly is below a threshold value and is therefore indicative of an arc on the circuit. | 09-18-2014 |
20140266289 | INTERFACE FOR RENEWABLE ENERGY SYSTEM - An improved interface for renewable energy systems is disclosed for interconnecting a plurality of power sources such as photovoltaic solar panels, windmills, standby generators and the like. The improved interface for renewable energy systems includes a multi-channel micro-inverter having novel heat dissipation, novel mountings, electronic redundancy and remote communication systems. The improved interface for renewable energy systems is capable of automatic switching between a grid-tied operation, an off grid operation or an emergency power operation. The interface provides for monitoring and for detecting performance and/or faults in power sources such as photovoltaic solar panels. | 09-18-2014 |
20140300384 | Solar Cell Characterization System With an Automated Continuous Neutral Density Filter - Techniques for solar cell electrical characterization are provided. In one aspect, a solar testing device is provided. The device includes a solar simulator; and a continuous neutral density filter in front of the solar simulator having regions of varying light attenuation levels ranging from transparent to opaque, the continuous neutral density filter having an area sufficiently large to filter all light generated by the solar simulator, and wherein a position of the continuous neutral density filter relative to the solar simulator is variable so as to control a light intensity produced by the device. A solar cell electrical characterization system and a method for performing a solar cell electrical characterization are also provided. | 10-09-2014 |
20140333340 | METHOD AND APPARATUS FOR REGISTERING CONDITIONS OF PERFORMANCE IN A PHOTOVOLTAIC ARRAY - Apparatus and method for registering conditions of performance in a photovoltaic array are provided. A group of neighboring photovoltaic modules may be arranged to sense a reference performance for a respective photovoltaic module of the photovoltaic array. Each of the neighboring photovoltaic modules may have a transmitter to transmit data indicative of the reference performance. The respective photovoltaic module may have a receiver to receive the data transmitted by the group of neighboring photovoltaic modules. A processor in the respective photovoltaic module may be provided to compare data indicative of its respective performance relative to the data received from the group of neighboring photovoltaic modules. The processor may be configured to register a condition of the performance of the respective photovoltaic module based on a result of the data comparison. | 11-13-2014 |
20140340110 | Device and Method for Detecting Ability of Anti PID Effect of Solar Cell - A device and a method for detecting the ability of anti PID effect of a solar cell are disclosed according to embodiments of the invention. The device includes a static generator including a high voltage power supply and an ion stick connected to the high voltage power supply; and a metal tray under the ion stick. It is judged whether the solar cell has the ability of anti PID effect by detecting the solar cell directly by the device, so for determining whether the solar cell has the ability of anti PID effect, there is no need for a solar cell assembly manufactured by the solar cell. | 11-20-2014 |
20140347087 | BAR FOR ELECTRONICALLY CONTACTING AN ELECTRICALLY CONDUCTIVE SUBSTRATE - The present invention relates to a bar for the electrical contacting of an electrically conductive substrate in the form of a thin, electrically conducting and resilient contact. The bar comprises a current-collecting bar on which a plurality of contact fingers is fitted. The invention is distinguished by the contact fingers being configured resiliently in the direction of the contact to be produced. | 11-27-2014 |
20140354323 | I-V CHARACTERISTIC MEASURING APPARATUS AND I-V CHARACTERISTIC MEASURING METHOD FOR SOLAR CELL, AND RECORDING MEDIUM RECORDED WITH PROGRAM FOR I-V CHARACTERISTIC MEASURING APPARATUS - To provide an I-V characteristic measuring apparatus that can, even though a solar simulator of a flash light type is used, accurately measure a true I-V characteristic of a solar cell that exhibits a different I-V characteristic depending on a sweep direction when a sweep time of applied voltage is short, an internal division ratio calculation part that, at each voltage value, calculates an internal division ratio at which a current value of a dark state stationary I-V characteristic internally divides a gap between a current value of a dark state forward I-V characteristic and a current value of a dark state reverse I-V characteristic; and a light state stationary I-V characteristic estimation and calculation part that, on the basis of the internal division ratio, a light state forward I-V characteristic, and a light state reverse I-V characteristic, estimates and calculates a light state stationary I-V characteristic are provided. | 12-04-2014 |
20150008952 | PHOTOLUMINESCENCE MAPPING OF PASSIVATION DEFECTS FOR SILICON PHOTOVOLTAICS - Methods for fast and accurate mapping of passivation defects in a silicon wafer involve capturing of photoluminescence (PL) images while the wafer is moving, for instance, when the wafer is transported on a belt in a fabrication line. The methods can be applied to in-line diagnostics of silicon wafers in solar cell fabrication. Example embodiments include a procedure for obtaining the whole wafer images of passivation defects from a single image (map) of photoluminescence intensity, and can provide rapid feedback for process control. | 01-08-2015 |
20150015297 | PHOTO DEVICE INSPECTION APPARATUS AND PHOTO DEVICE INSPECTION METHOD - A photo device inspection apparatus is an apparatus for inspecting a solar cell panel, which is a photo device. The photo device inspection apparatus includes an irradiation part configured to irradiate the solar cell panel with pulsed light radiated from a femtosecond laser, which is a light source, an electromagnetic wave detection part configured to detect a pulse of an electromagnetic wave radiated from the solar cell panel in response to irradiation with the pulsed light, and a current detection part configured to detect a current generated by the solar cell panel in response to irradiation with the pulsed light. | 01-15-2015 |
20150015298 | METHOD AND APPARATUS FOR SIGNALING PARTIAL SHADOWING OF A PHOTOVOLTAIC GENERATOR - The disclosure relates to a method for signaling partial shadowing within a PV generator including at least two partial PV generators connected in parallel. The method includes performing a reference impedance measurement on each of the at least two partial PV generators in a state of uniform irradiation of the PV generator, and determining at least one reference resonant property of each of the at least two partial PV generators from the reference impedance measurement. Furthermore, impedance measurements are carried out on the at least two partial PV generators at a first operating point of the PV generator during operation of the PV generator. Resonant properties of the partial PV generators are determined from the impedance measurements. Partial shadowing within the PV generator is detected and signaled if a difference between the resonant properties of the partial PV generators at the first operating point differs from a difference between the reference resonant properties of the partial PV generators. The disclosure also relates to an apparatus suitable for carrying out the method. | 01-15-2015 |
20150084663 | METHOD AND APPARATUS FOR DETECTING DISCONTINUITUES IN A SOLAR ARRAY - A method of detecting a discontinuity in: a solar array ( | 03-26-2015 |
20150084664 | Methods and Systems for Characterizing Photovoltaic Cell and Module Performance at Various Stages in the Manufacturing Process - A method of quantum efficiency (QE) photovoltaic measurement is provided that includes coupling measurement electronics to a p-n junction of a Cell Under Test (CUT) that are capable of measuring a pulsed DC photocurrent. The measurement electronics output a response by the CUT to turning on and turning off the pulsed DC photocurrent that are digitized and analyzed for the magnitude that is representative of a conversion efficiency of the CUT to a wavelength of the DC photocurrent, where a measured decay time represents the p-n junction or the minority carrier lifetime. The CUT is exposed to the pulsed DC photocurrent, where signatures of the response to turning off and on to the pulsed DC photocurrent overlap, where a combined amplitude of the response is proportional to an efficiency of a production of photocarriers, where a value of a spectral response at a wavelength is determined. | 03-26-2015 |
20150130499 | RESISTANCE COMPONENT EXTRACTION FOR BACK CONTACT BACK JUNCTION SOLAR CELLS - Methods and structures for extracting at least one electric parametric value from a back contact solar cell having dual level metallization are provided. | 05-14-2015 |
20150145550 | SOLAR ARRAY CONDITION MONITORING THROUGH CONTROLLED INVERTER VOLTAGE SWEEPING - A PV system includes an irradiance meter to measure solar irradiance received by a PV array in the system. A PV inverter is electrically connected to the PV array via a DC link to regulate the voltage of the PV array. A controller receives an input from the irradiance meter regarding the solar irradiance received by the PV array, causes the PV inverter to alter the operating voltage of the PV array to each of a plurality of voltage values, detects current values in the PV array responsive to the altering of the voltage to each of the voltage values, and generates a power performance curve for the PV array based on the voltage values at which the PV array is operated and the detected current values, with the power performance curve being generated at a known level of solar irradiance based on the input from the irradiance meter. | 05-28-2015 |
20150303868 | RAPID MEASUREMENT OF CURRENT-VOLTAGE CHARACTERISTICS OF SOLAR CELLS AND MODULES - A solar cell or module is illuminated at one sun intensity and is placed into short circuit. Current and voltage measurements are taken. Control circuitry commands a second, higher terminal voltage of the solar cell such as a maximum power voltage. A higher intensity light pulse (for example, three suns) is applied to the solar cell or module when the second voltage is commanded. Voltage ramps more quickly because of the high-intensity light pulse. When the second terminal voltage is reached the light pulse terminates and measurements are taken while the solar cell remains illuminated at one sun intensity. The solar cell is placed into open circuit conditions and in conjunction with that action another high-intensity light pulse is applied. When the steady-state open circuit voltage for one sun is reached the pulse terminates. Characteristics are measured including current and voltage at the terminals of the solar cell or module. | 10-22-2015 |
20150303869 | METHOD AND FACILITY FOR CONTROLLING THE INTERNAL PRESSURE OF A PHOTOVOLTAIC MODULE - A method for controlling the internal pressure of a photovoltaic module having a front plate, rear plate, photovoltaic cells, electrical interconnection conductors, and peripheral seal, in which the conductors are in pressure contact with the cells, under the effect of a force resulting from a vacuum prevailing inside the module. The method includes: a) gradually reducing the pressure of a gas quantity around the module; b) detecting, during step a), a physical parameter representative of the actual pressing of the interconnection conductors against the cells; and c) determining a value of the internal pressure of the module on the basis of a variation in the physical parameter. The control facility comprises an enclosure for receiving the module inside a gas quantity, the enclosure including elements for: reducing the pressure of this gas quantity, detecting a physical parameter representative of the actual pressing, and determining the internal pressure of the module. | 10-22-2015 |
20150318822 | REDUCING UNEQUAL BIASING IN SOLAR CELL TESTING - A solar cell testing apparatus can include a first electrical probe configured to receive a first voltage at a first location of a solar cell. The solar cell testing apparatus can also include a second electrical probe configured to receive a second voltage at a second location of the solar cell, where the second location is of the same polarity as the first location. | 11-05-2015 |
20150333693 | METHOD AND APPARTUS FOR MEASURING SOLAR CELLS - A method of measuring solar cells, wherein a voltage (U) or a current (I) is applied to a solar cell, and a current (I) and voltage (U), respectively, resulting therefrom is measured, and wherein prior to applying the voltage (U) or current (I) and during or after measuring the resulting current (I) and resulting voltage (U), respectively, a relative distribution of radiation emitted across the solar cell surface area is measured, wherein the voltage (U) or current (I) is applied as at least one pulse with a predeterminable, constant value for a predeterminable period of time, wherein an energy value is calculated from the resulting current (I) and resulting voltage (U), respectively, wherein a first relative distribution of radiation emitted across the solar cell surface area is measured prior to the pulse or each pulse and a second relative distribution of radiation emitted across the solar cell surface area is measured during or after the pulse or each pulse, and wherein a difference distribution is generated from the first and second relative distributions and scaled to the calculated energy value. An apparatus for performing the method. The method and the apparatus serve for the improved sorting of solar cells. | 11-19-2015 |
20150357972 | METHOD AND DEVICE FOR DETECTING ELECTRICAL ARCING IN A PHOTOVOLTAIC INSTALLATION - Method for detecting an electric arc in a photovoltaic installation, which includes measurement (E | 12-10-2015 |
20150357973 | SOLAR CELL MODULE EFFICACY MONITORING SYSTEM AND MONITORING METHOD THEREFOR - A solar cell module efficacy monitoring system includes a reference module which includes a solar power generation module and is to be maintained in a clean condition, an evaluation module which includes a solar power generation module and is to be covered by dust in an environment, maximum power point tracking devices which track powers of the reference module and the evaluation module and maintain power outputs at maximum points by connected to the reference module and the evaluation module, respectively, and, a PV communication recording device which records power generation results of the reference module and the evaluation module by connected to the reference module and the evaluation module, and a calculation display device which calculates power loss due to accumulation of dust on the evaluation module by connected to the PV communication recording device. | 12-10-2015 |
20160018456 | DISCHARGE RATIO STRING CONTINUITY MONITORING - A method for determining continuity in a PV panel string by calculating a discharge ratio includes operatively coupling a PV panel to a PV panel string; measuring a first voltage between points of coupling of the PV panel to the PV panel string; disconnecting the PV panel from the PV panel string; waiting for a discharge period to expire; measuring a second voltage at an expiration of the discharge period; calculating a discharge ratio of the second voltage to the first voltage; and comparing the discharge ratio to a predetermined threshold ratio. An apparatus for determining continuity in a PV panel string includes a discharge resistance serially connected in the PV panel string; a capacitance parallel connected to the discharge resistance; a voltage sensor parallel connected to the discharge resistance; and a first switch parallel connected to the discharge resistance. | 01-21-2016 |
20160020729 | METHOD, DEVICE, AND SYSTEM FOR DETECTING DIRECT-CURRENT ARC FAULT OF PHOTOVOLTAIC SYSTEM - A method for detecting a direct-current arc fault of a photovoltaic system is provided. The method includes: obtaining operation parameters of a photovoltaic system, and a current noise signal in a direct-current cable of the photovoltaic system, respectively; adjusting, based on the operation parameters, a threshold, where the threshold is used to determine whether the current noise signal has an arc feature; and sending a photovoltaic system direct-current arc fault signal in a case that it is determined, based on the threshold, that the current noise signal has a arc feature, so as to improve precision in the direct-current arc fault detection of the photovoltaic system. A device, a processor, and a system for detecting a direct-current arc fault of a photovoltaic system are also provided. | 01-21-2016 |
20160079916 | Testing of a Photovoltaic Panel - A method for testing a photovoltaic panel connected to an electronic module. The electronic module includes an input attached to the photovoltaic panel and a power output. The method activates a bypass to the electronic module. The bypass provides a low impedance path between the input and the output of the electronic module. A current is injected into the electronic module thereby compensating for the presence of the electronic module during the testing. The current may be previously determined by measuring a circuit parameter of the electronic module. The circuit parameter may be impedance, inductance, resistance or capacitance. | 03-17-2016 |
20160142009 | STATISTICAL DETERMINATION OF SOLAR SYSTEM PERFORMANCE - Power utilities may not have systematic visibility of the actual performance of customers' solar arrays. One solution to getting data on solar system performance may be through using monitoring hardware and/or software that is connected to a solar system. However, utility companies may not have access to such data since the monitoring hardware/software is commonly owned and operated by utility customers themselves and/or private solar contractors. The subject technology provide methods and systems that can be used to determine a “maximum solar production” baseline, e.g., on a daily basis in view of a set of conditions or factors. In some aspects, the maximum solar production baseline is determined by identifying similar days with “maximum solar potential” but that do not correlate with maximum production. In an example, asymmetry or a delta between maximum potential and maximum production can be used to identify underperformance of power production relative to maximum potential. | 05-19-2016 |
20160204737 | I-V MEASUREMENT SYSTEM FOR PHOTOVOLTAIC MODULES | 07-14-2016 |
20170238074 | METHOD FOR UPLOADING DATA OF CELL PANEL MONITORING SYSTEM AND CELL PANEL MONITORING SYSTEM | 08-17-2017 |
20190149089 | FAULT DETECTION AND POSITIONING SYSTEM FOR CELL PANEL IN LARGE-SCALE PHOTOVOLTAIC ARRAY | 05-16-2019 |
20190149090 | High Speed Quantum Efficiency Spectra of Multijunction Cells Using Monochromator-Based Hardware | 05-16-2019 |