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Patent Searching and Data


Matches 1 - 50 out of 10,176

Document Document Title
WO/2019/092777A1
Provided are an electric motor control device and an electric power steering device capable of suppressing torque variation due to a low angle-detection resolution by a simple calculation even under the condition that the rotational spee...  
WO/2019/092657A1
A control device for an electric motor having a first set of coil windings arranged to form a first sub motor and a second set of coil windings arranged to form a second sub motor, wherein current flow in the first set of coil windings i...  
WO/2019/093064A1
In order to improve torque accuracy by reducing torque pulsation and deviation due to a resistance constant error caused by variation in the temperature of an induction electric motor when restarting, from a low-speed free-running state,...  
WO/2019/087644A1
[Problem] To provide a motor control device and a motor control method enabling torque control by a command value even during switching of control modes, suppressing torque variation during the switching, and excellent in responsiveness....  
WO/2019/087721A1
Disclosed are a motor control device capable of accurately estimating a rotor position on the basis of a neutral point potential even when a load acting thereon becomes large, and a brake control device driven by the motor control device...  
WO/2019/084584A1
The invention relates to a method for the sensor-free determination of the rotor position of a synchronously running three-phase machine (4), which is supplied via an inverter (3), wherein active inverter states excluding short circuit s...  
WO/2019/085106A1
An electric motor control system and an inverter air conditioner. The electric motor control system comprises a rectifier (2), a filter circuit (6), an operation control portion (5), several inverters (4, 8), and current sampling portion...  
WO/2019/081768A1
The invention relates to a method for the closed-loop and open-loop control of two or more EC motors operated using a common converter, wherein for the purpose of setting the operating point of the EC motors there is provision for common...  
WO/2019/077689A1
This air conditioner is provided with an electric motor (1), and a power conversion device (1) which uses a vector control method to perform power conversion. The power conversion device (1) is provided with: a pulse control unit (7) for...  
WO/2019/073599A1
Provided are a motor drive device and the like capable of both suppressing vibration and reducing loss. The motor drive device (50) is provided with a control unit (51) for changing, in accordance with the change in torque current on the...  
WO/2019/073800A1
A control device (60) that comprises memory (61) that stores setting information that associates: combinations of armature-side command values for an armature winding of a stator (33) and field current command values for a field winding ...  
WO/2019/071390A1
Provided is a mechanical angle detecting method, comprising: Acquiring first posture information for indicating a motion posture of a pan/tilt base of a pan/tilt, second posture information for indicating a motion posture of a photograph...  
WO/2019/071955A1
Disclosed in the present invention discloses a system and method for fault-tolerant control under five-phase permanent magnet synchronous motor open-circuit faults. The method comprises: employing a rotation speed controller to obtain a ...  
WO/2019/068706A1
The invention relates to a method for operating a permanent magnet synchronous motor, wherein an operational vector is ascertained in a multi-stage process. The invention further relates to a motor assembly configured to carry out said k...  
WO/2019/063419A1
In a method for determining a flux (4) of an asynchronous machine (1), the flux (4) is adjusted according to a loss (7) of the asynchronous machine (1). Therefore, an apparatus for determining the flux (4) of the asynchronous machine (1)...  
WO/2019/064829A1
The present invention provides a power conversion device with which it is possible to detect failure of a switch element of an inverter in a shorter amount of time. This power conversion device 1000 comprises a first inverter 120, a seco...  
WO/2019/064830A1
Provided is a power conversion device with which it is possible to sense a fault in a switching element of an inverter in a reduced amount of time. The power conversion device 1000 is provided with a first inverter 120, a second inverter...  
WO/2019/063400A1
The invention relates to an electric drive device (30) comprising: - an inverter (32) with an inverter unit (36, 38, 40) for each phase (U, V, W), - a control unit (50) which is designed to control the inverter units (36, 38, 40) using a...  
WO/2019/057361A1
The invention relates to a method for operating an extraneously excited electric machine, in which an exciter current (lex) is set in the context of control. The exciter current (lex) is increased if a phase angle (φυ) of a voltage is ...  
WO/2019/057362A1
The invention relates to a method for determining a maximally adjustable torque (Mmin, Mmax) of an electric machine in motor and/or generator mode for a present operating point, wherein: a presently maximally adjustable voltage (Udc) and...  
WO/2019/056936A1
A fan control method and system, and an air conditioner, the fan control method comprising: turning off a first bridge arm set used in an inverter of the fan (S100); applying a preset drive signal to a second bridge arm set in the invert...  
WO/2019/057596A1
The invention relates to a monitoring device (19) for a reluctance machine (4), which monitoring device has a vector rotator (20) for rotating a space phasor (21), a low pass filter (22) for the rotated space phasor (21) and a signal eva...  
WO/2019/059648A1
A motor control apparatus according to one embodiment of the present invention comprises: a current controller for generating a voltage command signal on the basis of a torque command for driving a motor and a fundamental wave current of...  
WO/2019/051621A1
The invention describes a predictive control method for rectifiers/inverters, which defines mathematical models that represent a load/network and a converter/inverter, to then define control objectives for the load/network and the conver...  
WO/2019/053944A1
The purpose of the invention is to obtain, in a control device for a synchronous electric motor that performs PWM drive control without performing current feedback, a configuration capable of stably driving the synchronous electric motor...  
WO/2019/050276A1
The present invention relates to a method and a device for compensating for errors, included in a measurement current, caused by offset and scale errors in a current sensor, and the device for compensating for an error current caused by ...  
WO/2019/048197A1
The invention relates to a device (100) for controlling the operation of an electric machine (M). The electric machine (M) comprises a rotor and a stator. The device (100) has at least one regulating unit (110). The device (100) also com...  
WO/2019/042919A1
The present invention relates to a method for controlling a multiphase separately excited synchronous generator (302) in a wind turbine (100), wherein the synchronous generator (302) has a stator (322) and a rotor (324), the rotor (324) ...  
WO/2019/042533A1
The invention relates to a method for the field-oriented control of a permanently excited synchronous reluctance machine (1), which comprises at least the following steps: a) determining a flux-generating current component to be injected...  
WO/2019/043126A1
A control system for actively damping an output of an adjustable speed drive (ASD) having a DC link thin film capacitor is programmed to calculate a d-axis damping coefficient and a q-axis damping coefficient for stabilizing an output of...  
WO/2019/042846A1
The invention relates to a method for detecting the current values in a three-phase system, in which method first the current value of each of three currents (I1, I2, I3) is measured at defined points in time (t1, t2). Subsequently, diff...  
WO/2019/039168A1
Provided is a power conversion device capable of satisfying power supply harmonic restriction without providing a large-capacity reactor in an electrolytic capacitorless inverter configuration. The power conversion device generates: an ...  
WO/2019/039400A1
Provided are an electric linear motion actuator and an electric brake device with which a reduction in the size of an electric motor can be achieved, and with which it is possible to perform high-output motor control in a space saving ma...  
WO/2019/036506A1
A system comprises a stator magnetically coupled to a rotor and a plurality of conductor assemblies distributed evenly along a perimeter of the device, wherein each conductor assembly is evenly distributed into at least two branches of c...  
WO/2019/031081A1
This air conditioner has: a compressor having a motor driven in three phases; and a control unit that switches the wire connection of the motor to a delta wire connection and a Y wire connection. The compressor has: a first glass termina...  
WO/2019/030138A1
It is described a method for controlling a dual three-phase machine with 30-degree phase shift between the two sets, for example a fractional slot concentrated winding electrical machine (14) having a first three-phase winding set (21) b...  
WO/2019/029176A1
The present application relates to the technical field of unmanned aerial vehicles, and provides a motor control circuit, a motor system, an electronic speed control and an unmanned aerial vehicle; the motor control circuit comprises: a ...  
WO/2019/021745A1
[Problem] To provide a motor control device and a motor control method by which it is possible to perform, with high responsiveness, correction of offset and amplitude unbalance of a drive current of a motor in square wave control . [Sol...  
WO/2019/012915A1
This rotating electric machine drive system is provided with: a rotating electric machine (10) equipped with a rotor (12) in which each magnetic pole is constituted by a plurality of permanent magnets (22) and in which a salient pole por...  
WO/2019/010518A1
This invention provides a better 3 phase sensor-less permanent magnet motor control which further reduces power loss and electrical noise, and to provide a higher effective supply voltage to each winding. In order to do this the common n...  
WO/2019/010518A8
This invention provides a better 3 phase sensor-less permanent magnet motor control which further reduces power loss and electrical noise, and to provide a higher effective supply voltage to each winding. In order to do this the common n...  
WO/2019/008838A1
The purpose of the present invention is to estimate, in a short time and with a small torque shock, an initial speed including zero speed during speed-sensorless vector control of an induction motor. When applying an AC voltage to an ind...  
WO/2019/008242A1
The invention relates to a method for controlling a three-phase voltage inverter receiving a direct input voltage, the method comprising a step (40) of correcting the reference voltage vector comprising: - a step (44) of computing at lea...  
WO/2019/009194A1
The number of a plurality of coils of a consequent motor is a multiple of 6 and the number of a plurality of magnetic poles is an odd number of 3 or more. A control unit includes a first inverter that controls a current supplied to a fir...  
WO/2019/009195A1
The number of a plurality of coils of a consequent motor is a multiple of 6 and the number of a plurality of magnetic poles is an odd number of 3 or more. A control unit includes a first inverter that controls a current supplied to a fir...  
WO/2018/227972A1
By presuming the phase of a rotor (R) when stopping, the present invention enables starting in a smooth synchronously rotating manner and control without a sensor, even if no position detection unit is additionally used. The washing mach...  
WO/2018/230542A1
[Problem] To provide a vector control-type motor control device that compensates for inverter dead time without requiring a tuning operation, improves current waveform distortion and current control responsiveness, and suppresses noise, ...  
WO/2018/227769A1
A method for starting a position sensorless BLDC motor, comprising step A: reset: selecting a voltage Vds on a ds shaft, keeping the voltage Vqs of a qs shaft equal to 0, and allowing the motor to return to a preset position; step B: giv...  
WO/2018/230140A1
Provided is a power tool comprising a permanent magnet synchronous motor and a control unit for controlling the operation of the permanent magnet synchronous motor, wherein the control unit includes a limiting means for limiting the elec...  
WO/2018/230541A1
[Problem] To provide a vector control-type motor control device that compensates for inverter dead time without requiring a tuning operation, improves current waveform distortion and current control responsiveness, and suppresses noise, ...  

Matches 1 - 50 out of 10,176