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WO/2015/082407A1 |
A method for determining a rotational speed of a synchronous machine is provided. The synchronous machine is a generator and the method includes measuring one or more electrical parameters of the synchronous machine, and determining the ...
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WO/2015/083449A1 |
The control device of an electric motor has: a function for generating, based on an electric motor constant and a torque command value corresponding to a predetermined temperature, a current command value to the electric motor and execut...
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WO/2015/072173A1 |
Using a predetermined coordinate transformation determinant, a first command value used for obtaining a balanced three-phase AC signal is transformed to a second command value used for obtaining a two-phase AC signal, said balanced three...
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WO/2015/071576A1 |
System for controlling an automotive vehicle three-phase electric machine (2) supplied via chopped voltages, comprising a means (3) of determining settings of current of the phases of the electric machine as a function of a torque reques...
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WO/2015/067593A1 |
The invention relates to a method for operating a permanently excited synchronous machine, wherein a torque-generating current (Iq) and a magnetic field-weakening current (Id) are regulated in a rotor-fixed coordinate system. The aim of ...
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WO/2015/068300A1 |
A power conversion device is provided with: an AC rotary machine comprising a plurality of polyphase windings; a plurality of power conversion means that perform power conversion of DC voltage from a DC power supply on the basis of a plu...
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WO/2015/068258A1 |
The present invention is provided with: a current detection unit for detecting a current in a first coil line and a current in a second coil line; a reference voltage calculation unit for calculating a reference voltage on the basis of a...
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WO/2015/058445A1 |
A control method for restarting a permanent magnet synchronous motor (PMSM) (400) with speed, device and system thereof. The back electromotive force of the PMSM is obtained by a speed of a trailer, and is compared with the voltage at th...
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WO/2015/059784A1 |
The objective of the present invention is to obtain a motor control device and a motor control method with which vibration generated in a vehicle can be suppressed without increasing loss. A second upper/lower limit clipping unit uses an...
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WO/2015/059108A1 |
The invention relates to a method for ascertaining a deviation (x) of a rotational speed sensor (DS) of a synchronous machine (SM) comprising a rotor (RT) which can be rotated about a rotational axis (DA) and a stator (ST) with stator ph...
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WO/2015/059769A1 |
In order to obtain a motor control device that is capable of suppressing an abnormal operation of a synchronous motor, even of a synchronous motor with no saliency, by detecting a disk misalignment problem immediately after the motor sta...
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WO/2015/054954A1 |
A direct-axis current protection method and device for a permanent magnet synchronous motor drive system. The method includes: pre-calculating the direct-axis current of the next moment according to the current voltage transmitted from a...
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WO/2015/055444A1 |
An electrical converter (12) is interconnected via a filter (14) with an electrical load (16) or an electrical power source (20). A method for controlling the converter (12) comprises the steps of: receiving a reference flux (ψ*i) for t...
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WO/2015/056541A1 |
The present invention relates to a drive device for performing vector control on the basis of output current from an inverter. This drive device is provided with a vector control unit (11) that converts three-phase output current from an...
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WO/2015/045529A1 |
Provided is a power conversion device that can be restarted by estimating the rotor position and frequency during idling when current does not flow when a coil is short-circuited during idling of an AC electric motor and also when a rota...
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WO/2015/046286A1 |
The present invention addresses the problem of periodic disturbances occurring in current, etc., due to offset error and gain error of a current sensor which is used in a control device. In the present invention, a voltage command value ...
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WO/2015/042675A2 |
The present invention refers to a system for controlling the operation of an electric motor of a compressor, comprising at least one predictive speed control loop (4) constituted by at least one speed controller (41 ), at least one proce...
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WO/2015/045425A1 |
The purpose of the present invention is to reduce harmonics caused by the rotation of a motor and included in power supply current. A power conversion device has: a compensation current generation unit (52) for controlling compensation c...
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WO/2015/036826A1 |
Provided is a motor controller that controls a motor system including: a power converter (13), a smoothing capacitor (12), a three-phase AC motor (14), and a current sensor (14v, 14w). The motor controller is provided with an electronic ...
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WO/2015/035801A1 |
A V/F control method for an induction motor, comprising: extracting a reactive current and an active current, and respectively differentiating same to obtain the differentiated reactive current and the differentiated active current; resp...
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WO/2015/033885A1 |
This invention provides an electric brake device that makes it possible to improve responsiveness and minimize increases in power consumption. Said electric brake device is provided with a brake disc, brake pads, an electric motor (2), a...
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WO/2015/032531A1 |
The invention relates to a phase control loop for the rotational speed regulation of an electric generator fed by an internal combustion engine, having an input connection, which is designed to receive a rotational speed signal measured ...
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WO/2015/025356A1 |
A motor drive system comprises a motor, a motor control device, and a sensor for detecting the torque or acceleration of the motor. The motor control device includes: an estimation unit for estimating at least one of the speed and positi...
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WO/2015/025622A1 |
An inverter can output eight voltage vectors including two kinds of zero vectors to an AC electric motor in accordance with the switching states of switching elements. An AC electric motor control device controls the driving of the AC el...
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WO/2015/022231A1 |
The invention relates to a method for determining the phase currents through phase windings (12) and an excitation current through an excitation winding (13) of an electrical machine (11), wherein an excitation winding (13) is connected ...
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WO/2015/022718A1 |
Provided is a motor control device capable of, even when an abnormality occurs in a motor driving circuit or a multi-phase electric motor, continuing to control the driving of the electric motor, and also provided are an electric power s...
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WO/2015/019653A1 |
The present invention relates to a motor control device for a vehicle used, for example, for an electric power steering control device which generates an assistive force with an electric motor as a driving source in accordance with a ste...
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WO/2015/021016A1 |
An example method for controlling an AC electrical machine can include providing a PWM converter operably connected between an electrical power source and the AC electrical machine and providing a neural network vector control system ope...
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WO/2015/019905A1 |
A control device for an induction motor calculates a torque current command value and a magnetic flux current command value on the basis of the rotational speed of an induction motor and a torque command value and calculates a torque axi...
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WO/2015/011242A1 |
The invention pertains to a modular power bay intended for an aircraft comprising a plurality of electric machines (11), a plurality of inverters (10), and a control member (13b) configured to assign at least one machine (11) one or more...
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WO/2015/013361A1 |
A rotor flux estimator is provided. The rotor flux estimator includes an estimation module that generates a first rotor flux vector expressed in a phase voltage reference frame and a second rotor flux vector expressed in the phase voltag...
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WO/2015/011945A1 |
In order to achieve both a more compact device overall and reduced product costs, the present invention pertains to a drive device (1) comprising an AC rotary electric machine (PM), an inverter (40), and a case (2). The inverter (40) is ...
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WO/2015/013304A1 |
An induction motor controller is provided. The induction motor controller includes a first module that derives a commanded stator voltage vector, in a stator flux reference frame, via a rotor flux regulator loop and a torque regulator lo...
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WO/2015/004994A1 |
Provided are an inverter device deterring PWM voltage error even if high inverter output frequencies are used for overmodulation driving and an electric vehicle equipped with the inverter device. In an angular section where the output vo...
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WO/2015/005016A1 |
A device for controlling an inverter (6) for driving a motor (10) comprises: a current command value calculation means for, based on an input torque command value and a rotating state, calculating a current command value for the motor (1...
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WO/2015/000930A1 |
The invention relates to a method for actuating a multiphase frequency converter for actuating an electric machine 8, said electric machine 8 being suitable as a traction drive of a vehicle. The frequency converter comprises power switch...
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WO/2015/000682A1 |
The invention relates to a method for determining an rotor position of a rotary, multi-phase, electrically commutated electrical machine (2), wherein the electrical machine (2) has a plurality of phase conductors (3) to which power can b...
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WO/2014/209742A2 |
A system and method for determining a rotor time constant of an AC induction machine is disclosed. During operation of the induction motor, a flux signal is injected into a rotor flux command so as to generate a time-variant rotor flux. ...
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WO/2014/206691A1 |
According to the invention, in order to improve the reliability of a functional test of a holding brake (2) of an electric motor (1), the phase currents (isu, isv, isw) are varied, such that the current space vector (is) is rotated while...
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WO/2014/209360A1 |
A variable magnetization machine controller (100) comprises a current command module (102), a magnetization module (104) and a reducing current module (106). The current command module (102) computes a vector current command in a dq axis...
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WO/2014/209741A1 |
A system and method for controlling an adjustable speed drive (ASD) to decelerate an AC load during a generating mode of operation is disclosed. The ASD includes a capacitor and an inverter coupled to a DC link. A current sensor system i...
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WO/2014/199878A1 |
Provided is an electric-vehicle control device capable of effectively controlling a drive motor of an electric vehicle, without any delay in control timing during sudden acceleration and sudden deceleration of said motor. This electric-v...
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WO/2014/198444A2 |
The invention relates to a method for operating an electronically commutated servo motor (2), wherein the servo motor (2) is activated by a voltage space vector generated in accordance with a commutation pattern on the basis of a predefi...
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WO/2014/195706A1 |
A motor control circuit for an electric motor of an electric power assisted steering system comprises a switching circuit comprising a plurality of electrical switches, a current demand signal generator which converts the torque demand s...
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WO/2014/197566A2 |
An apparatus includes a robot arm, an electrical power cord, a motor-driven cable reel, an end effector, and at least one sensor. The robot arm has a proximal end and a distal end, and is configured to move in response to one or more ele...
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WO/2014/190369A1 |
The invention relates to a drive unit for driving an endless belt (2), comprising a driving drum (3), which is intended for contact with said endless belt (2), and a first motor (5) coupled to the drum (3). The drive unit also comprises ...
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WO/2014/192373A1 |
A setting unit of a power conversion device of an embodiment sets duration time at random and sets one of a plurality of carrier wave frequencies different from each other as a set carrier wave frequency. This allows a carrier wave gener...
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WO/2014/192467A1 |
This invention pertains to a device for detecting the magnetic pole position of a permanent magnet-type synchronous motor, the device detecting the amount of deviation between the origin of the magnetic pole position of a permanent magne...
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WO/2014/191649A1 |
A method for controlling a permanent magnet synchronous electrical machine powered by a battery delivering a supply voltage to the terminals of same, comprising: - a calculation (E01) of an initial direct voltage component and an initial...
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WO/2014/188264A2 |
An electronic control unit includes calculating a slip frequency of a rotating electric machine from a torque instruction value to the rotating electric machine and a target value of output efficiency to the rotating electric machine, ca...
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