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Matches 51 - 100 out of 31,500

Document Document Title
WO/2018/070224A1
The present invention enables an over-modulation control with high controllability and low noise. This control device for an alternating current motor is provided with: an inverter 3 which drives an alternating current motor 4; and a con...  
WO/2018/067843A1
Embodiments of the present disclosure relate to a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system that includes a variable speed drive (52) configured to provide power to a motor (50) that drives a compressor (3...  
WO/2018/066564A1
A drive device and drive method of a brushless motor are provided which are capable of suppressing noise occurring due to pulse shift processing. This drive device of a brushless motor is provided with one shunt resistor and a controller...  
WO/2018/067839A1
Embodiments of the present disclosure relate to a heating, ventilating, air conditioning, and refrigeration (HVAC&R) system that includes a variable speed drive (VSD) (52) configured to supply power to a motor (50) configured to drive a ...  
WO/2018/067833A1
Embodiments of the present disclosure relate to a refrigeration system that includes a compressor configured to circulate refrigerant along a refrigerant loop, a motor (106-1, 106-2, 106-3) configured to drive the compressor, and a varia...  
WO/2018/060337A1
A circuit arrangement (10) for controlling a stator winding (11) of a stator (12) of an electrical machine (13) is specified. The stator winding (11) has at least four electrical phases (In) which are designed to each be fed with a separ...  
WO/2018/062096A1
When an estimated rotational speed becomes lower than or equal to a predetermined rotational speed, a control unit 76 of a motor control device 70 increases the voltage to be applied to a coil 53 on the basis of a control signal for incr...  
WO/2018/064663A1
A system including a control system is provided. The control system includes a main drive that receives power from a power source and outputs a variable frequency and a variable amplitude AC voltage. The control system also includes a co...  
WO/2018/061818A1
A power conversion device 100 comprises: a first inverter 120 that is connected to one end of each phase winding of a motor; a second inverter 130 that is connected to the other end of each phase winding of the motor; a first switching c...  
WO/2018/061342A1
The inverter device is provided with: a converter unit (21) for performing full-wave rectification of a three-phase alternating-current voltage and outputting a direct-current voltage containing a pulsating component having a frequency s...  
WO/2018/056046A1
Provided is a power conversion device 100 comprising: a first inverter 120 connected to one end of the windings M1, M2, M3 of each phase of a motor 200; a second inverter 130 connected to the other end of the windings of each phase; and ...  
WO/2018/055671A1
An inverter device (100) is characterized by being provided with: an inverter main circuit (3); a direct current detection circuit (5) that detects a direct current flowing in a direct current bus bar; and an inverter control unit (7) th...  
WO/2018/056045A1
Provided is a power conversion device 100 comprising: a first inverter 120 connected to one end of the windings M1, M2, M3 of each phase of a motor 200; a second inverter 130 connected to the other end of the windings of each phase; and ...  
WO/2018/053693A1
A motor control system (100), comprising a first electronic speed regulator (31), a second electronic speed regulator (32), and a controller (40). The first electronic speed regulator (31) and the second electronic speed regulator (32) a...  
WO/2018/054558A1
The invention relates to an apparatus for voltage conversion, comprising a converter (2) and a controller (4), wherein the converter (2) has three half-bridges (H1, H2, H3), each with four transistors (T1-T4; T5-T8; T9-T12), and also at ...  
WO/2018/055820A1
A motor control device of an embodiment on/off-controls a plurality of switching elements connected in a three-phase bridge fashion in accordance with a predetermined PWM signal pattern and thereby drives a motor via an inverter circuit ...  
WO/2018/055691A1
Disclosed are a motor control system and a motor control method that allow the balance of evaluation values in a trade-off relationship to be easily adjusted. The motor control system includes: an inverter (5) that applies AC voltage to ...  
WO/2018/047921A1
A shift range control device (40) that: is installed in a vehicle; controls the driving of a motor (10) and thereby switches shift range; and comprises a feedback control unit (60), a feedback value setting unit (63), current sensors (81...  
WO/2018/047274A1
A motor drive device drives a single phase motor (12) by the power applied from a power supply (10) that is a storage battery, said single phase motor (12) being driven by a single phase alternating current. The motor drive device is pro...  
WO/2018/047236A1
A controller calculates a pulse width modulation signal of a two-phase modulation type. When the shortest pulse width of the calculated pulse width modulation signal is less than a set value, the controller corrects the calculated pulse ...  
WO/2018/042895A1
Provided are a control device and a control method for a rotary electric motor, which can reliably inhibit vibration of the rotary electric motor, as well as a rotary electric motor drive system. PWM control is performed on the rotary el...  
WO/2018/043501A1
This inverter control device according to one embodiment provides an electric motor driving system and an inverter control device that can achieve stable activation, the inverter control device comprising: a current detector 3 that detec...  
WO/2018/043502A1
This inverter control device according to one embodiment generates a current amplitude command so that the output torque of an electric motor conforms to a torque command, the inverter control device comprising: an inverter main circuit;...  
WO/2018/042729A1
Provided is a power steering device capable of suppressing a sudden change in steering force. This power steering device comprises: a steering mechanism which transmits the steering operation of a steering wheel to steered wheels; a firs...  
WO/2018/041685A1
The invention relates to a mechatronic assembly (2) for driving a body, which is designed to be connected to a continuous electrical power source (4) and an electronic control unit (1) comprising a computer for running a power-assistance...  
WO/2018/043480A1
The present invention provides a load driving circuit which is provided between a direct current voltage source and a rotating load, and which is provided with an impedance source and an inverter, wherein: the impedance source has a firs...  
WO/2018/037454A1
A motor drive device is provided with an inverter 5 and an inverter control unit 8. The inverter control unit 8 receives the input of a DC voltage detected between a DC power supply 1 and the inverter 5 and a current detected between the...  
WO/2018/036767A1
Electrical drive devices with an electrical machine and a plurality of inverters are already known, wherein the electrical machine comprises a rotor and a stator, wherein the stator has an electrical polyphase winding which comprises a p...  
WO/2018/036766A1
The invention relates to a control system for controlling an electrical machine by means of a plurality of converters. One of the converters is selected as a master converter. The other converters for controlling the electrical machine a...  
WO/2018/037981A1
[Problem] To provide an electric power steering device that has a plurality of dead time compensation functions that compensate inverter dead time and, without tuning work: switches dead time compensation functions and compensates, in ac...  
WO/2018/037980A1
[Problem] To provide an electric power steering device that has a plurality of dead time compensation functions that compensate inverter dead time and, without tuning work: gradually, by mixing, switches and compensates dead time compens...  
WO/2018/037523A1
In a general-purpose power conversion device there is a problem in that the edge interval increases and the update period for a command frequency increases when a pulse signal period increases. In order to solve this problem, this power ...  
WO/2018/029309A1
During the operation of a current converter (8) of an electrical machine (2), said converter comprising a bridge circuit (14) with a number of semiconductor switches (20) and comprising an intermediate circuit capacitor (12), in the norm...  
WO/2018/030143A1
The drive device comprises an electric motor, an inverter circuit, wiring for a multi-phase armature, a field circuit, an inverter control unit, and a field control unit. The field circuit is connected to a second end of a field winding ...  
WO/2018/030217A1
A failure detection device (70) is utilized in a system (10, 110) which comprises: a rotating electrical machine (30, 130) that is connected to an engine (20) such that motive power can be transmitted; an inverter (50) that performs powe...  
WO/2018/025416A1
A motor driving device (2), used in a motor (3), provided with a first three-phase coil (11) and a second three-phase coil (12), wherein said device is provided with a first inverter (4) connected to the first three-phase coil (11) and a...  
WO/2018/023892A1
A direct current drive method and system for an alternating current motor, and synchronous motor using the system. An ECU (5) is employed to control a direct current or alternating current power supply to sequentially supply power to set...  
WO/2018/024571A1
The present invention relates to an electrical household appliance with a power module with a dynamically controlled continuous and discontinuous space vector pulse width modulation (CSVPWM, DSVPWM) scheme. The present invention more par...  
WO/2018/025331A1
This motor driving apparatus is used for driving a motor 5 that has a first winding group 6 and a second winding group 7 to which a three-phase AC voltage is applied, and is provided with a first inverter 3 and a second inverter 4, where...  
WO/2018/025327A1
The purpose of the present invention is to obtain a servomotor control device capable of selectively reducing switching noise and switching loss with a simple circuit configuration. This servomotor control device 6 is provided with: an I...  
WO/2018/020657A1
A power converting device includes a first power converting circuit (3), a second power converting circuit (4), a first charge/discharge unit (1), and a second charge/discharge unit (2). The first power converting circuit (3) and the sec...  
WO/2018/020125A1
The invention relates to a method for controlling a rotating electrical machine controlled by at least one pulse width modulated control signal, characterized in that the control signal is frequency-modulated, the frequency of the modula...  
WO/2018/019386A1
The invention relates to a method for actuating a motor (16) for starting up a mill (6) with material (20) to be milled. In order to permit more cost-efficient starting up of the mill in comparison to the prior art, it is proposed that t...  
WO/2018/019944A1
The invention relates to a drive converter (11) for a switched reluctance machine (12) having a particular number of phase inputs (ph1, ph2, ph3, ph4), and to a system (13) comprising this drive converter (11) and the reluctance machine ...  
WO/2018/020694A1
This electric power steering device is provided with: a front wheel turning mechanism that is provided at the front wheels of the vehicle and that has a front wheel turning motor as a driving source; and a rear wheel turning mechanism th...  
WO/2018/021176A1
A sensor failure detection method is a method for detecting at least one failure of a plurality of sensors in a motor drive system, said method having: a step for executing a calculation (A) for determining a counter electromotive force ...  
WO/2018/016541A1
A motor control device having multiple control circuits and multiple motor circuits. The motor circuits are configured by means of an inverter circuit and a coil. The multiple motor circuits are controlled by any one of the control circu...  
WO/2018/014633A1
The present invention relates to the field of oil extraction engineering. Disclosed are an electric machine driving method and system for a non-conventional work mechanism of an oil extractor. The method proposes using a power frequency ...  
WO/2018/015398A1
The invention relates to a control apparatus for a refrigerator compressor having at least one two-phase AC asynchronous motor (K1, K2), having mains connection means (10) for connection to a preferably public voltage supply network whic...  
WO/2018/016090A1
A control unit of this vehicle driving apparatus controls a driver so as to complementarily switch the control state between a first control state where a first switch is turned off and a second switch is PWM-controlled and a second cont...  

Matches 51 - 100 out of 31,500