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Matches 1 - 50 out of 9,705

Document Document Title
WO/2018/068395A1
An electric motor driving system without an electrolytic-capacitor, and a current control method and a current control apparatus therefor. The method comprises: acquiring a current actual supply voltage, a current rotating speed instruct...  
WO/2018/069865A2
Disclosed are a flux observer for an induction motor, and a flux estimation method for an induction motor. The flux estimation method for the induction motor is characterized by including: a step in which a current model flux observer re...  
WO/2018/069726A1
A control system for an electric motor circuit comprises a current controller which produces a set of idealised voltage demands for the motor circuit, an observer which observes the inputs to the motor circuit and the outputs of the moto...  
WO/2018/061546A1
The present invention is a control device for a power converter with which a ripple component in direct-current voltage can be suppressed. The power converter converts a direct-current voltage (Vdc) containing a ripple component (Vdch) i...  
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/2018/061342A1
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/2018/056394A1
Provided is a motor driving device capable of suppressing load vibration as well as reducing motor loss. This motor driving device (50) is provided with a control unit (51) which adjusts the range of the allowed variation in the rotating...  
WO/2018/048641A1
An example system may include a motor, a position-controlled motor controller configured to drive the motor to a commanded position with a characteristic acceleration profile, and a control system. The control system may be configured to...  
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/2018/042672A1
A motor control device of the present invention is applied in a configuration in which a plurality of synchronous motors mechanically connected in parallel with each other are driven by means of a single power converter, and is provided ...  
WO/2018/043499A1
An inverter control device and a motor drive system according to a mode of embodiment of the present invention perform accurate current control, and are provided with: an inverter main circuit INV which drives a synchronous motor M; a cu...  
WO/2018/039513A1
In an example embodiment, a controller includes a memory (336) having computer-readable instructions stored therein and a processor (332). The processor is configured to execute the computer-readable instructions to: determine a first se...  
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/2018/037191A1
The invention relates to a method for estimating a periodic or substantially periodic force present in a mechanical or electromechanical system, the method comprising: estimating, by a processing device, one or more harmonic frequencies ...  
WO/2018/033378A1
The present invention provides control of a synchronous machine with non-sinusoidal current-voltage profiles. The synchronous machine is controlled in a field-oriented coordinate system. In this case, the transformation between field-ori...  
WO/2018/032352A1
An optical sensor for estimating positions of rotors in a motor comprises an optical source (21) and a plurality of photo detectors (22), the motor further has stators and is used for e-machines, the optical source (21) is mounted on the...  
WO/2018/030209A1
Provided is a motor control method that comprises: a step for acquiring at least one measurement torque angle and two estimation torque angles; a step for finding all combinations of two torque angles that can be combined with respect to...  
WO/2018/028067A1
An online parameter identification method and apparatus for a three-phase asynchronous electric motor. The online parameter identification method for a three-phase asynchronous electric motor comprises the following steps: acquiring a st...  
WO/2018/024963A1
The invention relates to a means for detecting the blocking of a brushless synchronous motor for a motor vehicle, comprising a stator fitted with a plurality of coils and a rotor, said motor being devoid of any position sensor of the rot...  
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/2018/019177A1
A motor vector control method and apparatus, and an aircraft. The method comprises the following steps: receiving a pulse position modulated (PPM) signal (S1); acquiring a first given voltage signal of a motor according to the PPM signal...  
WO/2018/018671A1
Disclosed are a fault-tolerant permanent-magnet vernier cylindrical electric motor with an electromagnetic suspension and a fault-tolerant vector control method for a short circuit of two adjacent phases. The method comprises: establishi...  
WO/2018/019619A1
The invention relates to a device for diagnosing a mechanical system which is driven by means of an electric drive motor, the drive motor thereof, and the shifting device thereof, comprising at least one sensor for detecting the current ...  
WO/2018/021983A1
The present invention relates to a rotor (2) alignment method which enables the rotor (2) to be aligned with the A phase axis for Permanent Magnet Synchronous Motors (PMSM) (1) using incremental angle encoder, and which comprises the ste...  
WO/2018/018672A1
Disclosed is a fault-tolerant vector control method for non-adjacent two-phase short circuits of a five-phase permanent magnet embedded fault-tolerant linear motor. Firstly, according to the principle that a magnetomotive force remains u...  
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/2018/016559A1
[Problem] To provide an electric power steering device of the vector control type which compensates for inverter dead time without requiring a tuning operation, improves current waveform distortion and improves current control responsive...  
WO/2018/016476A1
[Problem] To provide a vector-control-method electric power steering device that compensates for the dead time of an inverter, that also compensates for motor reverse voltage and for interference voltage caused by the mutual inductance o...  
WO/2018/016437A1
[Problem] To provide an electric power steering device of the vector control type which compensates for inverter dead time without requiring a tuning operation, improves current waveform distortion and improves current control responsive...  
WO/2018/016436A1
[Problem] To provide a vector-control-method electric power steering device that compensates for the dead time of an inverter, that also compensates for motor reverse voltage and for interference voltage caused by the mutual inductance o...  
WO/2018/016356A1
[Problem] To provide an electric power steering device using a vector control scheme in which tuning work is not required, the dead time of an inverter is compensated, and the improvement of current waveform distortion and the improvemen...  
WO/2018/016070A1
An inverter (40) converts a DC voltage from a DC power supply (12) to an AC voltage applied to a motor (15) in which no positional sensor is disposed. A current detection unit (50) detects motor currents (Iu, Iv, Iw) flowing through the ...  
WO/2018/016560A1
[Problem] To provide an electric power steering device of the vector control type which performs ideal inverter dead time compensation without requiring a tuning operation, improves current waveform distortion and improves current contro...  
WO/2018/016448A1
[Problem] To reduce estimation error for the winding temperature when the load state of a motor changes. [Solution] A temperature estimation device that repeats a process for estimating the electrical resistance and the temperature of a ...  
WO/2018/010679A1
A motor temperature detection method and device, and an aerial vehicle. The method comprises the following steps: in the control process of a motor, superposing a detection current on a given d-axis current of the motor, and enabling the...  
WO/2018/012447A1
In the present invention a rotor position determination unit 10 uses induced voltages Vu, Vv, and Vw generated in each phase U, V, and W of an armature winding 5 to identify the rotor position. While a field current flowing in a field wi...  
WO/2018/008936A1
The present invention relates to a system for applying a maximum driving efficiency point of a load, comprising: a motor for driving a load; an inverter for controlling the speed and voltage of the motor; a sensor unit for measuring magn...  
WO/2017/220117A1
A turbomachinery system includes a turbomachine, a shaft, a rotor power converter, and an electrical machine. The electrical machine is coupled to the turbomachine by the shaft extending therebetween. The electrical machine includes a st...  
WO/2017/220924A1
A method for estimating the position and speed of the rotor of an alternating current machine for a motor vehicle. The method comprises the following steps: determining the stator currents of the machine in the three-phase reference fram...  
WO/2017/220234A1
The present invention provides control for synchronous machines in order to achieve an approximately constant torque irrespective of the load angle. The induced voltage of the synchronous machine rotating with a zero-current of the stato...  
WO/2017/214972A1
Disclosed are a device and a method for stably stopping a motor. In this method, a first d-axis current reference value (id_ref1), a first q-axis current reference value (iq_ref1), and a first synchronous angle (Theta_fed) before a motor...  
WO/2017/216959A1
A motor system (101) relating to the present invention is equipped with: a motor wherein a first wire-wound section (6) and a second wire-wound section (7) are provided, and the number of the wire winding turns of the second wire-wound s...  
WO/2017/215822A1
The invention relates to a method for adjusting an amplitude of a voltage injection of a rotating, multi-phase electric machine, which electric machine is fed by means of a PWM-controlled inverter, comprising at least the following steps...  
WO/2017/208652A1
Provided is a motor control device in which high-frequency noise accompanying the detection of a direct-current bus current can be reduced without changing the switching frequency. This motor control device 3 comprises: a power converter...  
WO/2017/203987A1
A parameter identification device (12) is provided with: a data acquisition unit (120) for acquiring a torque τ relating to a motor, actual-measurement data of the angle θ(M) and angular velocity ω(M) of the motor, and actual-measurem...  
WO/2017/202530A1
The invention relates to a method for improving a starting process of an internal combustion engine (300) by means of a belt-driven starter generator (100), which has a stator winding (11) and a rotor winding (12), wherein the starter ge...  
WO/2017/199334A1
The control device 100 for a synchronous rotary machine 1 comprises: a current detection unit 2 which detects the current passing through the synchronous rotary machine 1; a control unit 3 which generates a voltage instruction for contro...  
WO/2017/199641A1
The purpose of the present invention is to reduce the number of times of switching to be performed when reducing a zero-phase current. This electric motor control device controls an electric motor, the phases of which are connected indep...  
WO/2017/197473A1
The present invention describes a closed-loop electronic control method for regulating the power of a direct current bus and at the same time controlling the switching of energy conversion power semiconductors in a model-based predictive...  

Matches 1 - 50 out of 9,705