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Matches 1 - 50 out of 31,657

Document Document Title
WO/2018/170302A1
A system for reducing a resonant oscillation on a direct current bus of a power inverter/converter for an electric machine having a variable frequency drive is disclosed. The system includes a battery, a first capacitor connected in para...  
WO/2018/167981A1
An inverter control device (100) for controlling an inverter (1) for driving a motor (2) is provided with: a motor rotational speed calculation means (5) for calculating motor rotational speed; a Vs calculation means (7) for calculating ...  
WO/2018/162192A1
The invention relates to a method for operating an inverter (130) for a drive system (100). The inverter (130) is designed to electrically couple a direct-current source (110) to a drive device (120) of the drive system (100). The method...  
WO/2018/163591A1
A power conversion device 100 having: a first and a second inverter 110, 140, which can be connected to at least one of a first and a second coil group 210, 220; a first separation relay circuit 120 connected to the first inverter; a sec...  
WO/2018/163922A1
According to the present invention, a low speed current sensor is used to determine where, among a motor and a cable connected to a power conversion device, a short circuit has occurred. In addition, the low speed current sensor is used ...  
WO/2018/162334A1
The invention relates to a method for regulating an electric drive (2), which comprises an electric machine (22) and an inverter (21), having the steps: determining (S 1) temperature information relating to the electric machine (22) and ...  
WO/2018/159274A1
Provided is an AC electric motor control device capable of detecting, in an AC electric motor drive device, abnormal operation of an AC electric motor or abnormal operation due to, for example, a sudden change of a load without an errone...  
WO/2018/155949A1
The present invention relates to a motor driving device and a home appliance including the same. A motor driving device according to an embodiment of the present invention comprises: an inverter which includes a plurality of upper arm sw...  
WO/2018/155278A1
A harmonic generation device according to one embodiment of the present invention is additionally connected to an electric motor which is fed with AC from an electric power trunk line connected to a power supply transformer. During opera...  
WO/2018/156432A1
A method of controlling an electric motor assembly includes receiving sensor feedback that is based at least in part on electrical properties of a variable frequency power signal provided to the electric motor assembly. The method also i...  
WO/2018/152650A1
A method, device and system for providing power supply to an electrical load within a facility, which is connected to a power grid network/island power network. The power management system includes a controller coupled to an electrical p...  
WO/2018/154763A1
The motor drive device (1) according to the present invention is provided with: a rectifier (42) for outputting DC power; inverter circuits (66) for converting DC power into AC power and outputting the AC power to a motor (3), and, durin...  
WO/2018/155332A1
A shift range control device (40) that switches shift ranges by controlling the drive of a motor (10) and comprises a first switching control unit (71), an inversion control unit (76), and a second switching control unit (77). The first ...  
WO/2018/149041A1
A permanent magnet synchronous motor drive system power converter that does not employ an electrolytic capacitor, and a control method thereof. The power converter comprises a single-phase rectifier circuit unit (A) connected to a power ...  
WO/2018/150793A1
The present invention addresses the problem of reducing output voltage errors of an inverter circuit and stably controlling a motor up to high-speed rotation. An inverter device 100 includes: a PWM controller 145 for generating a PWM pul...  
WO/2018/147402A1
A rotary electric machine control device (10 to 12) controls a rotary electric machine (80) which includes a plurality of winding sets (180, 280). Inverter circuits (120, 220) are provided for corresponding winding sets (180, 280). Power...  
WO/2018/147465A1
[Problem] To provide an electric power steering device which has a plurality of dead time (DT) compensation functions that perform DT compensation, wherein the DT compensation functions are switched between to perform compensation in acc...  
WO/2018/142829A1
[Problem] To provide a motor drive device that is advantageous to the safety of the operation of a switching element. [Solution] A motor drive device has: an inverter circuit; a switching circuit for switching the path between a power su...  
WO/2018/142635A1
[Problem] To improve the performance of an inverter-driven six-phase motor device. [Solution] Two three-phase voltages of opposite phases are applied separately to two three-phase coils. In a simultaneous switching mode, mutually opposit...  
WO/2018/142952A1
In order to appropriately restrict a current output from an inverter to a motor according to the state of a cooling mechanism that cools the motor or the inverter, this motor control unit 100 is provided with: a current command unit 150 ...  
WO/2018/142828A1
[Problem] Provided is a motor drive device that is advantageous in terms of reliability of control that delays the timing for interrupting the connection of a motor and an inverter circuit compared to the timing for interrupting the conn...  
WO/2018/139295A1
The problem of the present invention is to effectively reduce vibration and noise generated from a motor. An inverter 300 uses a plurality of IGBTs 311 that are switching elements to generate an AC current from a DC current supplied from...  
WO/2018/137490A1
A control system for an electric vehicle-mounted permanent magnet generator (PMG), comprising a battery pack (1), a PMG (2) having a winding, a bridge-type driving circuit (3), a buck circuit (4), a first local oscillation fundamental wa...  
WO/2018/138807A1
A motor drive device (2) is provided with: a single phase inverter 11 for applying an AC voltage to a single phase motor (12); a position sensor 21 attached to the single phase motor (12) and detecting the rotor rotational position of th...  
WO/2018/140757A1
Embodiments herein relate to a method of controlling a three-phase paralleled passive front-end drive connectable to a three phase alternating current power source. The method includes connecting a coupling reactance to the rectifier bri...  
WO/2018/139204A1
A rotating electrical machine unit (16) is provided with: a rotating electrical machine (21) having an armature winding (25) and a field winding (26); and a field circuit (23) for energizing the field winding according to whether a plura...  
WO/2018/140744A1
Embodiments herein relate to a three-phase paralleled passive front-end drive, that includes a rectifier bridge, a coupling reactance operably connected to the rectifier bridge and configured to transfer power from the rectifier to a fir...  
WO/2018/139299A1
This inverter control device controls an inverter for converting power between a power source and an MG. The voltage feedback control unit (601) of the inverter control device calculates a torque command (Tm*) for the powering or regener...  
WO/2018/139298A1
A feedback control switching unit in an inverter control unit selects a feedback control unit on the basis of the magnitude relation between a predetermined switching determination amount and a switching threshold and switches feedback c...  
WO/2018/139387A1
The purpose of the present invention is to provide an electric linear actuator that can improve the instantaneous output of an electric motor and allows size and cost to be reduced. A control device (2) of this electric linear actuator i...  
WO/2018/135007A1
When driving a synchronous electric motor by a load commutated inverter, it has been often difficult for a conventional control device to restart the synchronous electric motor when the synchronous electric motor is idling at high speed....  
WO/2018/135248A1
[Problem] To provide a power conversion device capable of maintaining motor output even if motor control is switched from control during normal time to control during abnormal time. [Solution] A power conversion device 100 has: a first i...  
WO/2018/131093A1
The purpose of the invention is to provide a motor control device capable of reducing noise without requiring preparation of a plurality of PWM carrier waves. Modified three-phase voltage command values are output by equally adding an of...  
WO/2018/130244A1
The invention relates to a method for determining the position of the rotor of a multiphase electric machine with pole windings (4), the inductances of which are uniquely connected to the rotational angular position of the rotor (2) in t...  
WO/2018/131116A1
An outdoor unit control device 13 is characterized by being provided with: an inverter circuit 54 having a plurality of switching elements and converting a DC power to an AC power to supply the AC power to a compressor 7; a current/volta...  
WO/2018/131273A1
The purpose of the present invention is to provide a motor drive device and a refrigeration apparatus capable of achieving suppression of motor current distortion caused by direct-current voltage ripples while adopting a small-capacity s...  
WO/2018/131397A1
An inverter (20) converts direct-current power into alternating-current power by operating PWM-controlled multiple switching components (21 through 26) and supplies the alternating-current power to an alternating-current motor (80). A fe...  
WO/2018/132790A1
A fluid sprayer includes a housing, a pump, a nozzle, a high voltage direct current (HVDC) brushed electric motor that drives the pump, and a motor controller electrically connected to the motor. The motor controller drives the motor wit...  
WO/2018/130793A1
A control system for a multiphase and synchronous rotating electrical machine comprising a stator (31) and a rotor (30), said control system comprising: - an electronic card (16) for generating stator switching signals according to a cur...  
WO/2018/131568A1
This control device (14) for a power conversion circuit controls a power conversion circuit (13) which has a plurality of switching elements (Sp, Sn), and which converts input power and outputs the converted input power to a rotary elect...  
WO/2018/123849A1
Provided is a power conversion device in which an appropriate current control becomes possible at any time during both normal and abnormal states. The power conversion device (100B) has: a first inverter (110) connected to one end of a w...  
WO/2018/121906A1
The invention relates to an electric machine with a stator and a rotor. The stator has a plurality of stator coils. The electric machine also has at least two power output stages, each of which is connected to some of the stator coils on...  
WO/2018/123426A1
Provided is a device (100) for acquiring information on the rotation of a motor (10), said device comprising a rectifier that includes a rotational angular velocity calculation unit (31) for calculating a rotational angular velocity (ω)...  
WO/2018/124467A1
The present specification relates to a motor control device and a control method for the motor control device, and to a motor control device which can reduce harmonics of input current by controlling an output of an inverter, and a contr...  
WO/2018/122991A1
The purpose of the present invention is to provide a power conversion device capable of obtaining driving characteristics desired around zero speed and in a low speed region regardless of how much magnetic saturation electromotive voltag...  
WO/2018/117084A1
The electric power conversion device (15) is provided with a first inverter (20), a second inverter (30), and a control part (65). One of the first inverter (20) and the second inverter (20) is a fixed output inverter, a power supply to ...  
WO/2018/108367A1
The invention relates to a cooling apparatus (1) comprising a metal and/or electrically conductive EMC enclosure (2) and a converter (E1) and also a plurality of electrically operated units (E2,..., En) within the EMC enclosure (2) which...  
WO/2018/108040A1
Electric driving devices (10, 210), electric equipment, inverters (12, 218), and multiphase alternating current motors (13, 211). The electric driving devices (10, 210) comprise multiphase alternating current motors (13, 211), the phase ...  
WO/2018/111839A1
A control system (126) is provided for an electric machine (106) having a rotor (110) and a stator (112). The control system (126) has a converter circuit (116) in electrical communication with the stator (112) and a controller (128) in ...  
WO/2018/110242A1
This control device (40) is for a rotating electrical machine (10) which is capable of performing a powering operation and a power generation operation. During the powering operation, inverter circuits (INV1, INV2) convert DC power suppl...  

Matches 1 - 50 out of 31,657