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WO/2013/035185A1 |
Provided is an overtemperature protection device for a motor applicable to a railway vehicle drive system which operates a plurality of motors in parallel by using one or more inverter devices. The overtemperature protection device is pr...
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WO/2013/035382A1 |
When switching a synchronous motor from a 120-degree energization method to a 180-degree energization method, there has been a problem that a current phase advances at around a speed that is lower than a switching speed, thereby aggravat...
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WO/2013/034965A1 |
A motor control system includes: a converter; two inverters; two alternating-current motors; and a control unit. The control unit is configured to control the system voltage by feedback of a current phase of a current vector of motor cur...
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WO/2013/031828A1 |
A power conversion device has a power switching circuit that has a plurality of serial circuits for connecting in series to a switching element for an upper arm and a switching element for a lower arm, receives DC power, generates AC pow...
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WO/2013/031560A1 |
Provided is a drive control device wherein it is possible to control the rotational frequency of an electrical apparatus in accordance with the load characteristics. Also provided are an electrical apparatus and a drive control method. A...
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WO/2013/027527A1 |
Provided are a motor control device that stably drives a motor regardless of the stop position and even in the event of fluctuations of load characteristics, and a drive device that utilizes said motor control device. This motor control ...
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WO/2013/024828A1 |
The purpose of the present invention is to provide a motor control device that can compensate even for errors in motor constant settings and that is capable of high-precision torque control. A motor control device (100) comprises a contr...
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WO/2013/024780A1 |
[Problem] In a PM motor position-sensorless control device, an estimation phase is not accurately estimated in a low speed region. [Solution] Provided is an induction power calculation unit in which a current detection value at a coordin...
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WO/2013/021562A1 |
This motor control device is provided with a motor drive unit for driving a motor, a current vector control unit, a flux weakening current command generation unit, and a target command limiter or a q-axis current command limiter. The cur...
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WO/2013/021998A1 |
In order to obtain a rotating electrical machine control device capable of preventing a vibrational component from being produced in a current command even when periodic torque vibration is contained in a torque command when the current ...
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WO/2013/017386A1 |
The present invention relates to a method of estimating inductances and flux linkages of an electrical machine, which electrical machine is supplied with drive currents via current regulators and actual values of the drive currents are m...
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WO/2013/015010A1 |
Provided is a power converter that accurately detects overexcitation in an AC motor, and controls the AC motor in such a manner as to minimize overexcitation when overexcitation has been detected. The power converter is characterized by ...
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WO/2013/010778A1 |
In a method based on the MPDTC algorithm for controlling an inverter of an electrical system, the harmonics and resonances in the inverter are damped by extracting frequency information from predicted data of the MPDTC algorithm and by d...
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WO/2013/011807A1 |
The purpose of the present invention is to reduce ripple current when driving an inverter by using a continuous pulse width modulation method. An inverter control unit uses pulse width modulation according to a predetermined modulation f...
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WO/2013/008312A1 |
A controller stores in advance the time required for an inverter output voltage to fall below a control target value "0" from the moment the inverter is switched off, the time being stored as dead time (Td). When overmodulation PWM contr...
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WO/2013/005762A1 |
An inverter control device is equipped with: an inverter (6) that converts direct current power input from a direct current power supply into alternating current power, which is supplied to a motor; a command value calculation unit (1, 2...
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WO/2013/002043A1 |
When the connection of a rotary electrical machine drive device and a DC power source unit is disconnected, the power regenerated through an inverter from the rotary electrical machine is rapidly decreased. In a biaxial orthogonal coordi...
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WO/2012/176553A1 |
The purpose of the present invention is to obtain a motor control device for controlling a motor having a plurality of phases and for, when an open-state failure occurs at a target phase, quickly and accurately detecting at which of the ...
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WO/2012/172237A1 |
Method of controlling an electric motor furnished with a rotor and a stator, sensors for measuring currents flowing in the rotor and in the stator, means for determining setpoints of current and means for processing the signals from the ...
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WO/2012/169413A1 |
A construction machine is provided with: a rotating body (1d); an electric motor (16) for driving the rotating body; an operating device (4b) for outputting an operating signal according to an operating amount and operating direction; an...
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WO/2012/164250A1 |
A control system for an electric motor (10) comprises a current sensing means (14) arranged to produce a current sensing output indicative of electric current in the motor, current control means (20) arranged to receive a current demand ...
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WO/2012/160694A1 |
In order to provide a practical implementation means which reliably determines control system malfunctions with a motor control device, a motor control device is equipped with: a motor driving means that supplies motor current to a motor...
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WO/2012/157039A1 |
Provided is a position-sensorless drive method, wherein control of the rotational speed and torque of a permanent-magnet motor is executed by driving the motor with an ideal sinusoidal-wave current generated by a minimum necessary number...
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WO/2012/152353A1 |
The present invention is concerned with a method, an apparatus and a computer program for monitoring the condition of electromechanical systems in which electrical rotating machinery is used and in which at least one electrical signal is...
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WO/2012/153794A1 |
A basic wave current detection unit (8) detects the current in a zero-voltage vector period (V7 or V0) for PWM control. A current change-amount detection unit (11) calculates the current difference for an actual current corresponding to ...
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WO/2012/143458A1 |
The method of detecting an estimated angular position (I) of a rotor (2) of a synchronous machine (1) with respect to a three-phase stator (3) comprises the steps of: - generating a detection voltage signal, - applying the detection volt...
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WO/2012/144456A1 |
A control apparatus (1) for a motor according to the present invention is provided with: a current control unit (4) that calculates voltage command values (vd*, vq*) for driving a motor (100), on the basis of the quantity of state for ca...
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WO/2012/144662A1 |
The present invention relates to a winding synchronous machine having a moving object including an inverter circuit, wherein a winding synchronous machine, including a winding synchronous motor or generator having a moving object includi...
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WO/2012/144000A1 |
The purpose of the present invention is to attain a control apparatus for an AC motor, wherein electrical oscillation of an LC filter circuit can be inhibited even when the magnitude of a torque command is small or nearly zero, and drivi...
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WO/2012/144290A1 |
The present invention relates to a motor control device provided with the function of detecting the rotor position of a synchronous rotor in a sensor-less fashion. The motor control device records ahead of time a current phase (β) stipu...
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WO/2012/144018A1 |
A power converter smoothing capacitor in a configuration provided with a boost converter and a power converter between a DC power source and an electrical load is made to be of lower-capacity without requiring an increase in breakdown vo...
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WO/2012/143643A1 |
This method of controlling a polyphase AC electric motor with independent phases comprising a step of compensating for at least one perturbation of a torque of the motor is characterized in that the compensating step comprises the inject...
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WO/2012/136946A2 |
The present invention relates to a method for controlling an electrical device (10) for driving an alternating-current motor (6). Said device (10, 20) includes: a voltage inverter with three-phase bridge (5) for controlling the alternati...
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WO/2012/137056A2 |
A stator (12) has a stator core (26), and stator windings (28u, 28v, 28w) wound around either the stator core (26) or teeth (30) of the stator (12). A rotor (14) has a rotor core (16), windings (42n, 42s) wound around either the rotor co...
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WO/2012/133799A1 |
Provided is a motor-ripple inhibiting apparatus that can estimate an error in a system identification model. The motor-ripple inhibiting apparatus is provided with: a Periodic Disturbance Observer (PDO) that estimates disturbance torque ...
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WO/2012/131995A1 |
The present invention has a circuit switch element that switches a step-up/step-down bidirectional chopper circuit between a first chopper circuit and a second chopper circuit, and uses the first and second chopper circuits in combinatio...
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WO/2012/129797A1 |
An inductance parameter identification method of a synchronous motor and an implementation system thereof are provided. The method comprises: applying a three-phase balance high frequency voltage or current signal to the synchronous moto...
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WO/2012/134003A1 |
Disclosed is a propulsion device for a vessel. The propulsion device for a vessel according to an embodiment of the present invention is a propulsion device for a vessel providing a thrust for propelling a vessel, having a front propelle...
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WO/2012/129799A1 |
A method for identifying inductance parameters of a synchronous electric machine includes: first determining the magnetic pole axis position of the rotor of the electric machine and obtaining a d-q magnetic pole coordinate axis; then inj...
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WO/2012/133220A1 |
Demand exists for a device for controlling a rotary electric machine capable of reducing the tracking delay of the actual current and the actual output torque, as well as the steady-state error, in response to a pulsating torque command ...
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WO/2012/131269A2 |
The invention relates to a system and method for controlling a multiphase electric motor while taking current oscillations into account. The invention relates to a system for controlling a multiphase electric motor (1) with which a motor...
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WO/2012/129581A2 |
The invention relates to a pumped storage plant (1) comprising a pump-turbine (5), which can be switched between pump operation and turbine operation and which has several pump-turbine modules (8), which are connected to each other in th...
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WO/2012/132703A1 |
When surplus in the power for charging a power storage apparatus is being generated, a motor control apparatus sets a field current to become an appropriate value, and makes the surplus power be consumed by having power loss that is nece...
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WO/2012/123255A2 |
The invention relates to a control method implemented in a power converter comprising an inverter (INV) connected to a synchronous electric motor (M) having permanent magnets, said electric motor (M) being modeled in the power converter ...
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WO/2012/125259A1 |
A sensor detects position data for a rotor of the motor at a first time. A data processor receives the detected position data associated with a first time delay. A sensing circuit senses an analog current at the motor during a second tim...
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WO/2012/124073A1 |
An overheat-protection control device for an inverter that drives a dynamo-electric machine, said overheat-protection control device being provided with: a temperature sensor (304) for measuring the temperature(s) of a power control elem...
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WO/2012/125272A1 |
A method of monitoring health of a mechanical drive train is provided. The method includes obtaining voltage and current signals from at least one phase of an electrical machine coupled with the mechanical drive train. The method also in...
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WO/2012/121200A1 |
A diagnostic device for a motor (6) in an electric vehicle that drives the wheels (2) thereof using the motor (6), the diagnostic device being provided with: a startup-time abnormality detection means (98) for, when the vehicle has been ...
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WO/2012/118649A1 |
A control system (120) for a motor (117) includes a current regulation controller (111) for generating a terminal voltage command. The terminal voltage command is used for converting a supply voltage to a three phase voltage to power a m...
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WO/2012/111504A1 |
A phase voltage setting means defines an actual current phase range that includes a current phase error range obtained on the basis of parameters containing instrumental errors of the motor and/or an inverter; defines a stable operating ...
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