Patent application number | Description | Published |
20110033322 | ELECTRICAL MOTOR ACTIVATION METHOD HAVING LOAD TORQUE ADAPTATION - An electrical motor activation method for an electric motor including a rotor, connected to a motor shaft, and a stator having brushes. The stator comprises multiple commutator laminations for the commutation of windings disposed on the rotor and is activated by a pulsed or linearly controllable power source. The motor shaft is connected to a radially driven load, in particular a pump, which has a nonlinear torque curve via a motor revolution. A waviness signal is obtained from a voltage potential applied to the motor and/or from the motor current and rotor position information is obtained from the curve of said waviness signal. | 02-10-2011 |
20130134967 | METHOD AND CIRCUIT ARRANGEMENT FOR CHECKING THE ROTOR POSITION OF A SYNCHROUNOUS MACHINE - A method for validating a vehicle-to-X message, in which the message is received by an antenna arrangement having a least two antenna elements connected with a communication device. An electromagnetic field strength of the message is recorded based on different reception characteristics with different power densities, wherein the message includes an absolute position of a transmitter, and an absolute position of a receiver determined on the basis of global satellite navigation or on a map comparison. A first relative position of the transmitter is calculated from the absolute positions of the receiver and the transmitter. A second relative position is calculated from the ratio of the power densities or read out from a reference diagram. If a comparison of the first and second relative positions reveals a large degree of correspondence, the message is validated, and if a large degree of deviation is detected, the message is rejected. | 05-30-2013 |
20130262724 | Method and Circuit Arrangement for Transmitting Data Between Processor Modules - The invention relates to a circuit arrangement for forming a digital interface comprising a digital data bus, which exchanges data when microprocessor systems are connected. The data exchange can be effected bidirectionally. On transmission of data the circuit arrangement generates as bus master a bus clock speed and operates on receipt of data as a bus slave in accordance with the received clock signal. The circuit arrangement comprises at least one FIFO memory for receiving data. | 10-03-2013 |
20130300324 | Method for Determining the Speed of a Synchronous Machine, Circuit Configuration for Actuating a Synchronous Machine, and Use of Such a Configuration - The invention relates to a method wherein the speed of the rotor of an electronically commutated synchronous machine is determined or controlled by means of one or more rotor position sensors, in particular, three rotor position sensors that are fixed to the stator, and a time measuring device, wherein the angle traveled by the rotor and the time lapsed during the travel are measured, wherein the measured angle traveled by the rotor is corrected by means of one or more first correction constants, in particular a differential for correcting for the influence of non-uniform positioning or expansion of the position marking of the rotor, and a circuit configuration for actuating an electronically commutated synchronous machine. | 11-14-2013 |
20140300299 | Method for Controlling an Electronically Commutated Polyphase DC Motor - A method for controlling a brushless DC motor (BLDC motor) having a rotor, a stator and an angle sensor and a logic circuit for generating the phase voltages of the windings depending on the phase angle of the rotor. The logic circuit access a lookup table, in which to implement commutation with block-shaped, trapezoidal, sinusoidal, sinoid-based signal waveforms. The drive values are stored for the electrical phase angle of the rotor for generating phase voltages (V | 10-09-2014 |
Patent application number | Description | Published |
20100176960 | Branch current monitor with an alarm - A power meter for monitoring current in a power cable annunciates an alarm if the current transgresses one or more alarm current limits. False alarms are avoided by delaying the activation of the alarm for a delay interval following determination that current is flowing in the monitored conductor. | 07-15-2010 |
20100207604 | Branch current monitor with calibration - A meter for measuring electric power consumed by a plurality of branch circuits includes interchangeable current transformers including respective transformer memories for storage of transformer characterization data and enables self-discovery of a phase shift induced by respective current transformers and the phase of current conducted by each branch circuit. | 08-19-2010 |
20100235122 | Branch circuit monitor power measurement - In a digital branch circuit monitor, compensation for the phase error is accomplished by selecting a voltage sampled at a time temporally offset from the sampling time of the current by an interval quantifying the phase shift of the secondary current relative to the primary current that is characteristic of a current transformer. | 09-16-2010 |
20100308792 | BRANCH CURRENT MONITOR WITH CONFIGURATION - A tool for configuring a branch current monitor facilitates mapping the connections of branch circuits to voltage sources in a power distribution panel. | 12-09-2010 |
20120278562 | BRANCH CIRCUIT MONITOR WITH PAGING REGISTER - The quantity of data stored in a branch circuit monitor and accessible by a data processing network is increased by logically dividing the monitor's memory into a plurality of registers each comprising a plurality of pages and addressing a page containing the desired data with an address corresponding to the identity of a page number stored in a page register and the identity of the register. | 11-01-2012 |
20140184198 | POWER METER WITH AUTOMATIC CONFIGURATION - A power monitoring system includes a plurality of current sensors suitable to sense respective changing electrical current within a respective conductor to a respective load and a conductor sensing a respective voltage potential provided to the respective load. A power monitors determines a type of circuit based upon a signal from at least one of the current sensors and a signal from the conductor, wherein the type of circuit includes at least one of a single phase circuit, a two phase circuit, and a three phase circuit. The power meter configures a set of registers corresponding to the determined type of circuit in a manner such that the configuring is different based upon each of the single phase circuit, two phase circuit, and three phase circuit suitable to provide data corresponding to the determined type of circuit. | 07-03-2014 |
Patent application number | Description | Published |
20130177444 | HUB FOR A WIND TURBINE AND A METHOD FOR FABRICATING THE HUB | 07-11-2013 |
20130236316 | APPARATUS FOR AND METHOD OF MOUNTING WIND TURBINE BLADES ON A WIND TURBINE TOWER - The application describes an apparatus for and a method of mounting wind turbine blades on a wind turbine tower. A number of guide rods | 09-12-2013 |
20130302144 | WIND TURBINE POWER TRANSMISSION SYSTEM - A power transmission system for increasing the rotational speed from a rotor of a wind turbine comprises a main shaft configured to be driven by the rotor, a support structure, and a gearbox. The support structure includes at least one bearing supporting the main shaft for rotation about the main axis, with no other degrees of freedom between the main shaft and support structure. The gearbox includes a gearbox housing rigidly coupled to the support structure and a gearbox input member coupled to the main shaft. The gearbox housing supports the gearbox input member for rotation about the main axis without any other degrees of freedom, and the gearbox input member is coupled to the main shaft with translational degrees of freedom in all directions and rotational degrees of freedom about axes perpendicular to the main axis. | 11-14-2013 |
20140017047 | TRANSPORTATION OF DRIVE TRAIN COMPONENTS IN A WIND TURBINE NACELLE - The invention relates to a transportation system for transporting at least one drive train component ( | 01-16-2014 |
20140219801 | NACELLE CONSTRUCTION FOR A WIND TURBINE - A heli-hoist pad ( | 08-07-2014 |
20140219804 | HUB FOR A WIND TURBINE - The invention provides a hub for a wind turbine, the hub comprising a continuous shell being assembled from at least two shell parts. To improve stiffness of the hub, a plate element is attached within blade flanges of the assembled hub. Due to the combination between shell parts and a plate element, manufacturing and transportation is facilitated while strength and rigidity is ensured. | 08-07-2014 |