SCHNEIDER TOSHIBA INVERTER EUROPE SAS Patent applications |
Patent application number | Title | Published |
20150381088 | CONTROL METHOD FOR STARTING A SYNCHRONOUS ELECTRIC MOTOR - A control method used in a control unit of a power converter, connected by three output phases to a synchronous electric motor, the method being used for starting the motor and including a first step for determining the voltages to be applied to the output phases depending on a reference current, a second step for determining a frequency to be applied to the stator depending on a stator frequency, a step for application of the first step and the second step for a given duration, so as to allow the rotor of the synchronous electric motor to rotate at the stator frequency applied. The method is particularly effective for an architecture including a transformer and a sinus filter between the power converter and the electric motor. | 12-31-2015 |
20150333658 | MULTI-LEVEL POWER CONVERTER - This is a multi-level converter comprising at least one arm (B) formed of n stages (Et | 11-19-2015 |
20150311776 | Cascaded multi-level Power converter - The invention relates to a multi-level power converter comprising:—n input stages (Ein_n), n being at least equal to 1, each input stage comprising n+1 identical input converters (CONVx_En) connected together, the input converters (CONVx_En) exhibiting an identical topology, chosen from among the architectures of the NPC (Neutral point Clamped), ANPC (Active Neutral Point Clamped), NPP (Neutral Point Piloted) and SMC (Stacked Multicell Converter),—an output stage (Eout) connected to the input stage of rank 1 and comprising an output converter (CONVs) supplied with a differential voltage (Vfloat) resulting from a first electrical potential applied to the output of a first input converter of the input stage of rank 1 and from a second electrical potential applied to the output of a second input converter of the input stage of rank 1, the output converter (CONVs) exhibiting a topology chosen from among an architecture with floating capacitor (FC), SMC (Stacked Multicell Converter), NPC (Neutral Point Clamped), NPP (Neutral Point Piloted) and ANPC (Active Neutral Point Clamped). | 10-29-2015 |
20150288284 | MULTI-LEVEL POWER CONVERTER - This is a multi-level converter comprising one or more arms (B) to each be connected between a voltage source (VDC) and a current source (I). Each arm comprises two stages (E | 10-08-2015 |
20150084574 | SYSTEM FOR CONTROLLING A SYNCHRONOUS ELECTRIC MOTOR - A control system included in a speed selector connected by output phases to a synchronous electric motor, the synchronous electric motor being controlled according to a control law implemented by the speed selector. A first speed of the synchronous electric motor is determined by a first speed estimator. A second speed estimator is used to determine a second speed of the synchronous electric motor. The system includes a signal generator module configured to apply, to the output phases, voltages taking account of a non-constant current signal. The second speed estimator is configured to recover the current response on the output phases, to deduce therefrom the second speed of the synchronous electric motor. | 03-26-2015 |
20150035468 | CONTROL METHOD IMPLEMENTED IN A VARIABLE SPEED DRIVE - The invention relates to a method of control implemented in a variable speed drive, said method comprising the following steps of:
| 02-05-2015 |
20140286068 | DIFFERENTIAL MODE AND COMMON MODE CHOKE - The invention relates to a differential mode and common mode choke comprising:
| 09-25-2014 |
20140241015 | CONTROL DEVICE EMPLOYED IN A SWITCHED ELECTRICAL POWER SUPPLY SYSTEM - The invention relates to a control device ( | 08-28-2014 |
20140233287 | CONTROL METHOD AND SYSTEM FOR CORRECTING THE VOLTAGES TO BE APPLIED TO AN ELECTRICAL LOAD - A control method to be implemented in a power converter, the power converter including an inverter module controlled by a control rule that makes it possible to determine a control voltage to be applied to an electrical load on the basis of a reference control voltage. The control method includes determining a correction value to be applied to the reference control voltage, the correction value being determined from a first filtered voltage obtained by filtering a voltage that is representative of the real measured voltage, and a second filtered voltage obtained by filtering a voltage that is representative of the reference control voltage. | 08-21-2014 |
20140211524 | POWER CONVERTER AND PRE-CHARGING CIRCUIT OF SAME - A power converter configured to control an electrical load including a supply DC bus, a bus capacitor, a pre-charging circuit of the bus capacitor provided with a limiting resistor, a switched-mode power supply, and a starter assembly of the switched-mode power supply. The power converter includes a selection mechanism configured to connect the supply DC bus either, in a first state, to the starter assembly of the switched-mode power supply or, in a second state, to the bus capacitor to short circuit the limiting resistor. | 07-31-2014 |
20140169984 | SENSORLESS CONTROL METHOD FOR A MULTIPUMP SYSTEM - The invention relates to a control method implemented in a processing unit (UC) used in the control of a multipump system, said multipump system comprising an inlet passage (IN) intended to receive a fluid, two pumps (P | 06-19-2014 |
20140146449 | VARIABLE SPEED DRIVE AND SYSTEM INCLUDING AN ARCHITECTURE FOR REINFORCING THE INGRESS PROTECTION OF THE VARIABLE SPEED DRIVE - The invention relates to a variable speed drive ( | 05-29-2014 |
20140084694 | POWER MANAGEMENT SYSTEM COMPRISING A POWER SOURCE, A SOURCE OF RENEWABLE ENERGY, AND A POWER CONVERTER - The invention relates to a power management system, comprising: a power source; a source of renewable energy; a power converter; a first selection means arranged to connect the input of the power converter either to the power source or to the source of renewable energy; a second selection means arranged to connect the outlet of the power converter either to the power source or to a system for storing power; and a means for synchronizing the first selection means and the second selection means, which operates according to pre-established operation rules. | 03-27-2014 |
20130334992 | CONTROL METHOD IMPLEMENTED IN A POWER CONVERTER AND INTENDED FOR IDENTIFYING PARAMETERS LINKED TO THE MAGNETIC SATURATION OF AN ELECTRIC MOTOR - A control method implemented in a power converter including an inverter connected to a synchronous electric motor including permanent magnets, the electric motor being modeled in the power converter by a mathematical model of currents in the electric motor expressing a flux current and a torque current on the basis of magnetic-saturation parameters. The control method identifies magnetic-saturation parameters during a learning procedure including applying a static voltage signal and a high-frequency voltage signal along an axis of the flux and/or an axis of the torque of the motor to cause an oscillation of the current on the axis of the flux and/or on the axis of the torque. | 12-19-2013 |
20130293258 | METHOD AND SYSTEM FOR DETECTING A DEFECT ON THE DC POWER SUPPLY BUS OF A POWER CONVERTER - The invention relates to a method for detecting a defect on the DC power supply bus of a power converter connected to an electrical distribution network (RD). The method comprises steps of:
| 11-07-2013 |
20130287596 | METHOD AND SYSTEM FOR IDENTIFYING AND CONTROLLING A CENTRIFUGAL PUMP - The invention relates to a method and a system for controlling a centrifugal pump ( | 10-31-2013 |
20130286689 | AC/DC POWER CONVERTER WITH IMPROVED POWER FACTOR AND IMPROVED THDI - A power converter including: a first controlled current source configured to control current flowing on a DC supply bus of the converter, a switch connected to a second current source and to a third current source and to each of input phases of the converter, a first controller configured to control the first current source to impose a current on the DC supply bus, and a second controller synchronized with the first controller and configured to control the second current source and the third current source to impose a current on one of the input phases selected with aid of the switch. | 10-31-2013 |
20130258721 | CONTROL DEVICE EMPLOYED IN A SWITCHED ELECTRICAL POWER SUPPLY SYSTEM - The invention relates to a control device ( | 10-03-2013 |
20130201732 | VARIABLE SPEED DRIVE PROVIDED WITH A SUPERCAPACITOR MODULE - A variable-speed drive including: a DC power supply bus including a positive line and a negative line; a bus capacitor connected between the positive line and the negative line of the DC power supply bus; an inverter module supplied with power by the DC power supply bus and controlled to provide a variable voltage to an electrical load; a first switching branch connected between the positive line and the negative line of the bus and including at least one first electronic switch; and a first module including a braking resistor, or a second module including a mechanism for storing and regenerating electrical energy generated during braking of the electrical load, wherein the first module and the second module are removable and interchangeable. | 08-08-2013 |
20130016540 | POWER CONVERTER COMPRISING AN INVERTER MODULE USING NORMALLY ON FIELD-EFFECT TRANSISTORSAANM BARAUNA; Allan PierreAACI VernonAACO FRAAGP BARAUNA; Allan Pierre Vernon FR - The invention relates to a power converter comprising: | 01-17-2013 |
20130015790 | METHOD OF CONTROL IMPLEMENTED IN A VARIABLE SPEED DRIVE FOR CONTROLLING THE DECELERATION OF AN ELECTRIC MOTOR IN THE CASE OF POWER OUTAGEAANM KERMARREC; LudovicAACI EvreuxAACO FRAAGP KERMARREC; Ludovic Evreux FRAANM MALRAIT; FrancoisAACI Jouy sur EureAACO FRAAGP MALRAIT; Francois Jouy sur Eure FR - The invention relates to a method of control implemented in a variable speed drive for controlling the deceleration of an electric motor (M) in the case of electrical power outage. The method of control comprises:
| 01-17-2013 |
20130015787 | METHOD FOR HOT CONNECTING A MOTOR TO A VARIABLE SPEED DRIVEAANM DEVOS; ThomasAACI Carrieres sous PoissyAACO FRAAGP DEVOS; Thomas Carrieres sous Poissy FRAANM MALRAIT; FrancoisAACI Jouy sur EureAACO FRAAGP MALRAIT; Francois Jouy sur Eure FR - A method for connecting a second motor to a variable speed drive in parallel with at least one existing motor under load and controlled by the variable speed drive is provided. The method disconnects the existing motor from the variable speed drive and a state estimator calculates transient state of the existing motor including at least the speed of the existing motor based on a previously established load model. The method then connects the second motor to the variable speed drive and the second motor is operated using a suitable directive until the actual state of the second motor attains the calculated transient state of the existing motor at a given time. Upon attaining the calculated transient state, the existing motor is reconnected to the variable speed drive such that no current spike is generated in the aforementioned process. | 01-17-2013 |
20120282786 | QUICK CONNECTION DEVICE FOR ELECTRICAL APPLIANCE - The invention relates to an electrical connection device ( | 11-08-2012 |
20120249031 | VARIABLE SPEED DRIVE WITH OPTIMIZED ARCHITECTURE - The invention relates to a variable speed drive ( | 10-04-2012 |
20120134183 | POWER CONVERTER WITH A CONTROLLED CURRENT SOURCE AND CONNECTED IN SINGLE-PHASE MODE - The invention relates to a control method implemented in a power converter, such as, for example, a variable speed drive. This control method is designed to make the power converter operate when the latter is connected to the network in single-phase mode. The power converter notably includes a controlled current source connected in series to its DC power supply bus. This controlled current source includes an electronic converter ( | 05-31-2012 |
20120113691 | POWER CONVERTER WITH CONTROLLED CURRENT SOURCE - A power converter including a rectifier stage connected to plural phases of a network delivering an input current at a determined fundamental frequency, a DC power supply bus and a bus capacitor connected to the DC power supply bus. The converter includes a controlled current source situated on the DC power supply bus, the current source making it possible to control a rectifier current, flowing on the DC power supply bus, and a controller for the controlled current source to control a rectifier current, flowing on the DC power supply bus. The controller is configured to implement a regulation loop into which are injected a first harmonic and a second harmonic synchronized respectively at six times and twelve times the fundamental frequency of the input current delivered by the network, the amplitude and phase of these harmonics being determined to limit the THDi and the PWHD. | 05-10-2012 |
20120081932 | CONTROL METHOD AND SYSTEM FOR REDUCING THE COMMON-MODE CURRENT IN A POWER CONVERTER - The invention relates to a control method and system intended to reduce the common-mode current in a power converter which comprises a rectifier stage ( | 04-05-2012 |
20120019987 | CONTROL ASSEMBLY COMPRISING A VARIABLE SPEED DRIVE AND A CIRCUIT BREAKER - A control assembly including: a variable-speed drive for controlling an electric charge, the variable speed drive including a rear attachment mechanism for attaching same to a mounting and a power terminal board receiving a power via power lines; and an electrical interrupter connected to the power lines to control or protect the variable-speed drive. The electrical interrupter is electrically connected to the power terminal board of the variable-speed drive, and the control assembly includes attachment means for mechanically attaching the electrical interrupter to the variable-speed drive only. | 01-26-2012 |
20110249479 | METHOD OF CONTROLLING AN INVERTER OF NPC TYPE - The invention relates to a method of controlling a multilevel inverter of NPC (Neutral Point Clamped) type. The method consists in particular in regulating the electrical potential of the mid-point when the inverter operates at full voltage, that is to say in overmodulation. In this case, the method firstly consists in determining the position of the control voltage vector (U) in one of the six identical triangles covering the hexagonal vector space and thereafter in decomposing the control voltage vector (U) in the triangle by taking account of the control combinations, defined in this triangle, for the switching arms. | 10-13-2011 |
20110199801 | ENERGY RECOVERY DEVICE IN A VARIABLE-FREQUENCY DRIVE - A variable-frequency drive that includes a DC power supply bus with a positive line and a negative line, and an inverter module powered by the DC bus for supplying a variable voltage to an electric load. The inverter includes a first DC/DC converter including output terminals connected in series on the positive line of the DC bus, a second DC/DC converter including input terminals connected between the positive line and the negative line of the DC bus, a filtering capacitor connected in parallel to the input terminals of the first converter and to the first output terminals of the second converter, and an electric power storage module connected in parallel to the second output terminals of the second converter. | 08-18-2011 |
20110166697 | METHOD AND DEVICE FOR CONTROLLING A LIFTING LOAD - A control method implemented in a variable speed drive for controlling a lifting load, the load control being carried out according to a first control profile that includes the following: accelerating the load with a view to reaching a first speed, decelerating the load upon receiving a deceleration order, and stopping the load. When the load receives a deceleration order when it is at a current speed lower than the first speed, the method determines a second speed lower than the first speed and higher than the current speed, the second speed having an optimal value for minimizing the load running time until stopping. | 07-07-2011 |
20110134675 | CURRENT-SOURCE POWER CONVERTER USING NORMALLY-ON FIELD EFFECT TRANSISTORS - The invention relates to a current-source power converter comprising, in its rectifier module ( | 06-09-2011 |
20110101900 | METHOD FOR DETERMINING THE INDUCTANCES OF A PERMANENT MAGNET SYNCHRONOUS MACHINE - The invention relates to a control method implemented in a variable speed drive for determining the inductances (Ld, Lq) of a permanent magnet synchronous machine comprising three phases (a, b, c), each oriented along a direction, a stator, and a rotor. For each phase, one after the other, said method includes steps of: applying, along the direction of the phase (a, b, c), a voltage vector (V | 05-05-2011 |
20110057587 | ENERGY-RECOVERY DEVICE IN A VARIABLE SPEED DRIVE - The invention relates to a variable speed drive comprising a direct-current power bus having a positive line ( | 03-10-2011 |
20110006838 | DEVICE FOR CONTROLLING A POWER TRANSISTOR - The invention relates to a gate control device for a JFET-type transistor comprising a gate, a drain and a source, said device comprising:
| 01-13-2011 |
20100295523 | POWER CONVERTER USING A RECTIFIER WITH NORMALLY ON TRANSISTORS - The invention relates to a power converter comprising, in particular, a rectifier comprising at least one switching leg provided with two transistors (T | 11-25-2010 |
20100264861 | METHOD FOR DETERMINING THE POSITION OF THE FLUX VECTOR OF A MOTOR - The invention relates to a method for determining the position of a rotor flux vector of an electric motor (M), comprising a step of injecting a first current vector into a first reference frame (x | 10-21-2010 |
20090213513 | SPEED CONTROLLER INCLUDING A DEVICE FOR PROTECTION AGAINST OVERCURRENTS AND OVERVOLTAGES - The invention relates to a speed controller comprising:
| 08-27-2009 |
20090212726 | DEVICE FOR PROTECTING A SPEED CONTROLLER AGAINST OVERCURRENT - The invention relates to a speed controller comprising:
| 08-27-2009 |
20080294360 | METHOD FOR DETECTING THE LOSS OF ONE OR MORE PHASES IN A PERMANENT-MAGNET SYNCHRONOUS ELECTRIC MOTOR - The present invention relates to a method implemented in a speed controller ( | 11-27-2008 |
20080251589 | METHOD AND SYSTEM FOR MANAGING THE TEMPERATURE IN A SPEED CONTROLLER - The present invention relates to a method for managing the temperature implemented in a speed controller ( | 10-16-2008 |