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Patent Searching and Data


Matches 101 - 150 out of 11,434

Document Document Title
WO/2017/089461A1
The invention relates to a device (1) for operating an electric motor (EM) having an identifying unit (2) for identifying zero crossings and phase angles of applied phase-shifted sinusoidal voltage phases (L) of a polyphase voltage suppl...  
WO/2017/089094A1
The invention describes a method for pulse-width modulated (PWM) current control of a load current (IL) of an inductive load (L) by means of at least one switch element (T1) for switching the load current (IL), wherein a first operating ...  
WO/2017/074508A1
A system includes a variable frequency drive (VFD) comprising an inverter having an output configured to be coupled to a motor and a switch configured to couple a power source to the motor to bypass the VFD. The system further includes a...  
WO/2017/068274A1
The invention relates to a generator starter (30) of a turbomachine, comprising an asynchronous electric machine (11) configured so as to operate in motor mode during a starting phase of the turbomachine while being supplied by an electr...  
WO/2017/066307A1
Solar Motor Controller is an electronic device with DC power input terminals that may connect directly to solar PV panels, and output terminals that may connect directly to single or multiphase phase AC electric motors without requiring ...  
WO/2017/055188A1
The synchronous machine module comprises a synchronous machine and a rotational speed control device for controlling a rotational speed of the synchronous machine, which rotational speed control device has detection means for detecting a...  
WO/2017/048279A1
Various embodiments include determining an alternating current (AC) voltage and frequency of a supply voltage coupled to a circuit input. The circuit includes a soft starter circuit that is coupled between the circuit input and a first s...  
WO/2017/044537A1
Systems and methods for estimating an inertia, a Coulomb friction coefficient, and a viscous friction coefficient for a controlled mechanical system are provided. In one or more embodiments, an inertia and friction estimation system can ...  
WO/2017/031663A1
A centrifugal switch and a brushless liquid-resistance electric motor starter with same. The centrifugal switch comprises a stationary electrode (7, 7') fixedly arranged on a liquid storage box shell (1) of an electric motor starter and ...  
WO/2017/023249A1
A magnetization state control method for a variable magnetization machine, the method includes generating a flux linkage vector while changing a magnetization state of the variable magnetization machine such that a trajectory of the flux...  
WO/2017/020177A1
A motor control circuit (30) comprises a plurality of power units (31-36). Each of the power units comprises a first power element (Q1) and a second power element (Q2) connected in series with the first power element (Q1), and the connec...  
WO/2016/207617A1
A control unit for use in controlling a switched reluctance motor (SRM) for clockwise rotation in a clockwise-rotating electric supercharger and anti-clockwise rotation in an anti- clockwise-rotating electric supercharger. Each SRM has a...  
WO/2016/198981A1
An electric drive unit for driving devices connectable therewith comprises at least one- permanent magnets assisted reluctance motor (2) and switching elements (11) operatively associated to the at least one reluctance synchronous motor ...  
WO/2016/198474A1
A starter system for start up of a combined heat and power unit comprising a generator which is connectable to the grid. The starter system comprises a variable frequency drive, VFD, operable to receive power from the grid. The VFD reduc...  
WO/2016/192837A1
The invention relates to a compressor (400') for generating compressed air, in particular for a compressed air supply system (1000) of a vehicle, comprising the following: - an electric motor (500) in the form of a brushed DC electric mo...  
WO/2016/188007A1
A motor starting control method for a cooling fan of a railway locomotive. A target value of an output frequency of an inverter is set as a relatively low value F1, the output frequency of the inverter is controlled according to a relati...  
WO/2016/184601A1
The invention relates to a circuit arrangement for controlling an electric machine, in particular an electric motor and/or a generator. The circuit arrangement has at least one power module and a processing unit. The power module has at ...  
WO/2016/184651A1
The invention relates to a variable speed drive system. The variable speed drive system has a drive machine (3) and a drive machine (1) which is mechanically coupled or can be coupled to the drive machine (3) by means of a transmission u...  
WO/2016/182644A1
A compressor for commercial refrigerators comprises an electric motor having a start winding (120) and a run winding (130), in which the input terminals of the start winding (120) and the run winding (130) are connected together and to t...  
WO/2016/177547A1
The invention relates to a domestic appliance (100) having an electric drive, a voltage supply (109) for supplying the actuator (112) to which an electric drive is connected downstream and which has an electric supply voltage, and a cont...  
WO/2016/148883A3
A switch mode power supply may utilize a switching signal to control one or more power switches in the switch mode power supply. A switch mode power supply controller may generate and/or control this switching signal. The controller may ...  
WO/2016/102762A3
An electric power plant comprises at least one electric machine (105) operable as a generator when rotated by a piston engine (108). The electric power plant comprises a control system (101) for interrupting the fuel supply of the piston...  
WO/2016/151160A1
The invention relates to a generator of electrical current by movement and induction by means of permanent magnets and resonant coils according to an envelope housing a circular solid element in the form of a rotor in which a variable ma...  
WO/2016/145851A1
Disclosed is an electronic type starter, comprising a housing (1), a first pin (2), a second pin (3), a first reed (4), a second reed (5), a first thermistor (6), a second thermistor (7) and a bidirectional thyristor (8); and further com...  
WO/2016/143481A1
A synchronization control unit 3 operates a power converter INV by means of V/f control, with a first on/off switch S1 being "off" and a second on/off switch S2 being "on". A utility synchronization current control unit 4 operates the po...  
WO/2016/134908A1
The invention relates to a domestic refrigeration device (1) and to a method for operating a domestic refrigeration device (1). The domestic refrigeration device (1) comprises a heat-insulated body (10) with a coolable inner container (2...  
WO/2016/134872A1
The invention relates to a method for operating an asynchronous machine comprising the steps: determining an operating point trajectory for the asynchronous machine for a plurality of desired torques of the asynchronous machine by calcul...  
WO/2016/119392A1
A no-power-consumption starter used for commercial refrigeration compressor motor, comprising: a current instrument transformer (L1), a bidirectional thyristor (T), an inductor (L2), a positive temperature coefficient (PTC) element, and ...  
WO/2016/119391A1
A starter without power consumption of a motor of a commercial refrigeration compressor, comprising a current transformer (L1), an inductor (L2), a two-way thyristor (T), a PTC element and a starting capacitor (C1). An end (1) of a prima...  
WO/2016/119393A1
A non-power-consuming starter for a commercial refrigeration compressor motor, comprising: a current transformer (L1), bidirectional controlled silicon (T), an inductor (L2), a PTC element and a starting capacitor (C1). One end (1) of a ...  
WO/2016/119390A1
A non-power consuming commercial refrigeration compressor motor starter, comprising: a current transformer (L1), a bidirectional thyristor (T), an inductor (L2), a starting capacitor (C1), and a positive temperature coefficient (PTC) ele...  
WO/2016/102935A1
An assembly comprising: an electric motor (3) such as a switched reluctance motor; an electrical power source (8) for energising the stator coils (9) of the motor; and a control module (1) for controlling the motor. The control module (1...  
WO/2016/104324A1
The purpose of the present invention is to supply current to a motor in a full-energization state after the start of automatic brake control while minimizing an increase in starting current to the motor in the initial stage at the start ...  
WO/2016/102385A1
The present invention relates to a method for determining a stator current vector (Umax) for starting a synchronous machine (111) of a drive (110) of a passenger transportation apparatus (100) having a rotor (122) and having a stator (12...  
WO/2016/102380A1
The invention relates to a mining vehicle and to a method for energy supply of a mining vehicle. The mining vehicle comprises at least one mining work device, at least one three phase AC electric motor for powering the at least mining wo...  
WO/2016/092534A1
A soft starter device generates an output voltage of variable amplitude, frequency and phase. An output switch connects the soft starter device to a motor. A bypass switch connects the motor to a line voltage. A controller is configured ...  
WO/2016/091958A1
The invention relates to a method for operating a drive train, comprising a planetary superposition gearbox (G) for driving a working machine (C) at variable speed. According to the invention, the method comprises the following steps: ru...  
WO/2016/092995A1
A fan motor system (1) is provided with: a fan motor unit (10) comprising a motor (101) and a controller (100) which controls the rotational speed of the motor (101) in accordance with an input command value; a command value outputting p...  
WO/2016/087101A1
In order to increase the power output and the degree of efficiency and to minimize the thermal loading, the installation space required and also the manufacturing costs in an electric drive assembly for a hybrid drive, in particular for ...  
WO/2016/079107A1
The invention relates to a multiple drive (10) for a heavy-load application and to a method for operating such a multiple drive (10), wherein the multiple drive (10) comprises a plurality of drive trains (12) and wherein during the start...  
WO/2016/074425A1
Disclosed is a method for smoothly starting a Hall-less motor, comprising the operation steps of: applying a voltage to two phases of a three-phase motor, and determining a positioning duty and a positioning time, so as to make a duty ra...  
WO/2016/057934A1
A method includes monitoring electrical output in an open control loop from a variable speed drive to a remote permanent magnet motor, the variable speed drive electrically connected to the permanent magnet motor via a power transmission...  
WO/2016/030098A1
The invention relates to an electric drive. An electric drive according to the invention has at least one drive motor and at least one transmission. The transmission is arranged in a housing and has a frame which is fixed to the housing,...  
WO/2016/030605A1
The invention relates mainly to a starter (DEM) including: an electric motor (DCM); a contactor (EC) for supplying power to said electric motor (DCM), said contactor (EC) including at least one coil (11, 12) located in a chamber of said ...  
WO/2016/023588A1
Method for starting (101, 102) an electronically commutated, brushless drive motor (1) of an auxiliary assembly of a motor vehicle, which drive motor has a motor stator (2) comprising at least one stator coil (21) and a permanent-magnet ...  
WO/2016/019664A1
A motor starting method and a starter. The starting method comprises: generating a driving power with fixed periodic waveforms to trigger a silicon controlled rectifier when receiving a motor starting signal; calculating the triggering t...  
WO/2016/015072A1
The invention discloses an electrical circuit for controlling by closed-loop control and open-loop control, in the electromagnetic lathe (100), the starting current, the operating current, the rotational speed, the power, the power facto...  
WO/2016/008386A1
Disclosed is a self-controlled brushless motor liquid resistance starter, comprising movable electrodes (6), stationary electrodes (5), and an elastic resistance apparatus that prevents the movable electrodes from moving toward the stati...  
WO/2016/004786A1
A mutual-inductance contactless current starter for a commercial refrigeration compressor motor comprises a current transformer L1 and bidirectional controllable silicon T. One end (1) of a primary coil of the current transformer L1, one...  
WO/2016/004785A1
A mutual-inductance contactless current starter for a commercial refrigeration compressor motor. A permanently running capacitor (C2) is connected between a primary winding leading-out end (M) and a secondary winding leading-out end (S) ...  

Matches 101 - 150 out of 11,434