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Matches 201 - 250 out of 31,657

Document Document Title
WO/2017/140357A1
A multilevel converter (1) comprising a first (10A), a second (10B) and a third (10C) switching leg. Each switching leg (10A, 10B, 10C) comprises: - a first connection (11A, 11B, 11C) for a respective phase (A, B, C) of a three phase AC ...  
WO/2017/137092A1
The present disclosure relates to a submodule (3) for a chain link converter leg (2). The submodule comprises a first semiconductor structure (4a) forming first current path through the submodule, and a second semiconductor structure (4b...  
WO/2017/130447A1
When a triangular carrier wave is divided into two intervals, that is, a monotonically increasing interval and a monotonically decreasing interval, a DC bus line current detection unit (2) detects, in a first cycle of two continuous tria...  
WO/2017/128052A1
An unmanned aerial vehicle and an electrical motor control chip and an electronic governor thereof. The electrical motor control chip comprises: an encapsulation case (11), an analogue peripheral circuit (21) encapsulated in the encapsul...  
WO/2017/129252A1
The invention relates to a method (20) of controlling a modular multilevel converter (1) comprising a number of series-connected submodules (21,..., 2n) in at least one first branch (3a_u, 3b_u, 3c_u) and at least one second branch (3a_I...  
WO/2017/130854A1
This motor control device controls the rotational operation of a motor, and is equipped with a function for preventing regenerative power produced by the motor from flowing back to the power-source side. This motor control device is equi...  
WO/2017/129849A1
The elevator comprises a car (10) moving upwards and downwards in an elevator shaft (20) by a lifting machinery (400) comprising a drive unit (100), an electric motor (200) having an axis of rotation forming an axial direction (X-X), and...  
WO/2017/127557A1
In one embodiment, systems and methods of controlling switch modules for dynamically deriving selective circuitries within a plurality of similar voltage energy storage devices of an energy storage system, and/or, within a plurality of s...  
WO/2017/126639A1
The purpose of the present invention is to improve the abnormality detection ability of a current sensor. An abnormality detection device for a current sensor 16 detects whether a single current sensor 16 is abnormal or not, said current...  
WO/2017/126389A1
Provided is an electric motor device that can improve the feel of a vehicle by reducing the effect of cogging torque, and that can reduce manufacturing cost. The electric motor device includes: an electric motor (6); and a control device...  
WO/2017/126261A1
Provided are: a current sensor such having a reduced size and cost, in which defects in the current sensor can be identified with a high degree of precision, and an inverter comprising the current sensor. A direct current sensor 380 for ...  
WO/2017/122309A1
A control unit 2 of an electric motor control device is provided with: an inverter circuit 6 which supplies electric power to an electric motor 1; a current control unit 5 which outputs a voltage command value as a drive command for the ...  
WO/2017/121611A1
The invention relates to a vacuum pump drive comprising an electric motor (12) driving the rotor of a vacuum pump, a first frequency converter (16) connected to the electric motor (12) and designed to generate a motor input voltage for d...  
WO/2017/122490A1
The purpose of the present invention is to obtain a motor control system which can stably control the torque of an alternating current motor by using an inverter. A motor control system of the present invention is provided with: a curren...  
WO/2017/122296A1
An electric vehicle control device, provided with a voltage control unit for controlling the output voltage of an inverter, and a speed estimator 20 for computing an estimation value for the speed of a motor. The speed estimator 20 is pr...  
WO/2017/123832A1
Systems and method for controlling an alternating current (AC) electrodynamic machine (390) with a variable frequency drive (VFD) (380) include a control system (300) with a phase-locked-loop (PLL) circuit (382) for providing a stator fl...  
WO/2017/122420A1
Provided are an in-vehicle device control method and an in-vehicle control device with which it is possible to suppress radiation noise generated when a plurality of loads are driven simultaneously to respectively operate a plurality of ...  
WO/2017/120211A1
The method of controlling a rotating three-phase motor involves generating in synchronism with the rotation of the motor a variable duty cycle pulse-width modulated signal for each of the switching circuit components used to supply curre...  
WO/2017/119227A1
The objective of the present invention is to obtain a control device of a rotating electrical machine drive system capable of appropriately protecting a power device of an inverter circuit when an excessively large current is applied fro...  
WO/2017/115561A1
Provided is a device for controlling a direct-type power conversion apparatus, which is capable of highly efficiently driving a motor while suppressing noise. Pulsation power having a first variation width is inputted to a DC link (DC po...  
WO/2017/115560A1
The present invention pertains to a device for controlling a direct-type power conversion apparatus, which is capable of highly efficiently driving a motor. According to the present invention, a rectified voltage obtained through full-wa...  
WO/2017/116676A1
A method for reducing noise at a wellsite includes transmitting a plurality of first signals from a variable frequency drive (VFD) to an alternating current (AC) induction motor. A timing of a plurality of second signals is varied to con...  
WO/2017/111390A1
An aspect of the disclosed invention calculates a value of an inductance of a synchronous motor whose characteristic is unclear while suppressing a failure of the synchronous motor. A motor driving device according to an embodiment of th...  
WO/2017/110081A1
A brushless DC motor voltage control device (20a): stores the value of one cycle of a periodic voltage variation in a smoothed voltage; uses a duty adjusted on the basis of the stored smoothed voltage value to delay the application of a ...  
WO/2017/112402A8
Systems and methods are disclosed for improving acceleration performance of an electric vehicle that includes an electric motor for propulsion. An exemplary system may include an inverter configured to drive the electric motor. The inver...  
WO/2017/112402A1
Systems and methods are disclosed for improving acceleration performance of an electric vehicle that includes an electric motor for propulsion. An exemplary system may include an inverter configured to drive the electric motor. The inver...  
WO/2017/106136A1
A power converter for operating a three-phase AC electrical machine from a single phase AC power source includes an ASD having a rectifier and inverter, and an add-on power conversion module external to the ASD that is electrically conne...  
WO/2017/088921A1
A multi-phase inverter having a plurality of pulse width modulation pulses is described. In the event that the duty cycle of a pulse of a plurality of pulse width modulation pulses of the multi-phase inverter is above an upper threshold ...  
WO/2017/090781A1
A compressor of the present invention comprises a sealed container, a compression element that is installed inside the sealed container and compresses a refrigerant fluid, an electric element that is installed inside the sealed container...  
WO/2017/089712A1
System for controlling the electrical supply of an electric automotive vehicle furnished with at least two electric traction machines (3,5), each supplied by an inverter (2,4), the inverters (2,4) being connected to one and the same cont...  
WO/2017/090612A1
[Problem] To provide an electronic control device having an external WDT that can accurately detect an abnormality (failure) in an MCU associated with a BIST function, thereby enabling system safety to be maintained. [Solution] Provided ...  
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/2017/090350A1
The objective of the present invention is to reduce zero-phase current detection errors. This control device is for an electric machine wherein windings are independently connected for each phase, and is equipped with a control unit that...  
WO/2017/090109A1
This control device for a permanent magnet-type rotating electrical machine 100 is provided with: a current coordinate transforming unit 109 which coordinate-transforms three-phase alternating currents detected from current detecting uni...  
WO/2017/086054A1
A system-in-package according to the present invention is used after being connected to an inverter output circuit and has: an analog circuit chip including a plurality of gate driver circuits that output to a terminal electrode a gate d...  
WO/2017/080120A1
A method for implementing a unidirectional chaotic motion of a rotation speed of a permanent-magnet synchronous motor. The method comprises: step 1, collecting two-phase current simulation signals to obtain digital quantities iA(t) and i...  
WO/2017/080996A1
The invention relates to a method for controlling a semiconductor switch (HS1) of a converter (WR) by means of a pulse width modulated control signal (SS1), wherein, during a signal period (T) of the control signal (SS1), the semiconduct...  
WO/2017/077574A1
In the present invention, first and second magnetic sensors (24A, 24B) are disposed at positions separated from each other along the rotation direction of a rotor of a single-phase AC motor (10). In a starting process for causing the rot...  
WO/2017/077596A1
Provided is a vehicular motor control device comprising an inverter in which a plurality of power semiconductor elements are mounted and which drives a motor by switching control, and a DC/DC converter for stepping up an output voltage o...  
WO/2017/077567A1
The purpose of the present invention is to obtain an electric power steering device capable of, when a failure occurs in one motor winding set, continuing control while maintaining driver's steering feeling in a good state. When detectin...  
WO/2017/077981A1
The objective of the present invention is to suppress pulsation of output torque by means of output distributed to a plurality of inverters, in response to an arm malfunction in a power conversion device, and to enable inverter control w...  
WO/2017/077599A1
Provided is a motor control device that outputs a drive signal to a single-phase inverter for driving a single-phase motor, the motor control device performing PWM control on the single-phase inverter on the basis of a detected value of ...  
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/2017/072710A1
Described is method for controlling an electric fan comprising an electric motor and electronics for controlling the electric motor, comprising a step for controlling the speed of the motor, a step for controlling the power of the motor ...  
WO/2017/068628A1
The air conditioner according to the present invention is provided with: a power source generating unit 2 that generates driving power for driving the air conditioner; an inverter output unit 6 that drives a motor 20; a voltage detecting...  
WO/2017/068821A1
Provided is a power conversion device in which, when a power-source disturbance occurs, an inverter maintains the direct-current voltage, and operation of the device is continued with the motor in an excited state, while an overcurrent/o...  
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/2017/064076A1
Disclosed is a method for controlling a semiconductor switch (HS) using a pulse-width-modulated control signal (PWM). A check is made (S100) to determine whether a current duty cycle (Tm) of the control signal (PWM) lies within a duty cy...  
WO/2017/063739A1
The present invention concerns a three-phase diode bridge device (100) for helping control an electric motor, comprising three pulse generators configured to supply a three-phase power supply signal, having three phases (U, V, W) offset ...  
WO/2017/063753A1
The invention relates to a system comprising electric motors and to a method for operating a system comprising mechanically coupled electric motors. Each electric motor has a rotatably mounted rotor shaft, and the rotor shafts of the ele...  

Matches 201 - 250 out of 31,657