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WO/2012/007396A2 |
The invention relates to a method for determining an actual torque of a multiphase electric machine (2), said electric machine (2) being controlled by means of a driver circuit (3), whereby phase voltage or phase potential profiles are a...
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WO/2011/162318A1 |
A temperature increase of a semiconductor switching element, which forms part of a power conversion device such as an inverter, is estimated by an extremely simple method to assess the degradation and remaining lifetime of the semiconduc...
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WO/2011/160880A1 |
The invention relates to a method for determining the torque of an electric motor (1) on a motor vehicle, wherein a torque is generated by a rotor of the electric motor (1) and the torque is transmitted from a drive train (12) to at leas...
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WO/2011/161811A1 |
A motor drive apparatus drives motor generators (MG1, MG2) using power from a DC power supply (20). The motor generators (MG1, MG2) make rotors with permanent magnets installed thereon rotate, using current magnetic-fields generated by m...
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WO/2011/155013A1 |
The disclosed control device uses PWM to control an inverter that controls the output of a motor. Said control device computes a reference frequency (fs) on the basis of the torque and rotational velocity of the motor, uses two data tabl...
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WO/2011/152558A1 |
In the disclosed control device without position sensors which controls a synchronous machine having a multiple winding configuration, integration processing is performed to integrate phase estimation information of multiple inverters ev...
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WO/2011/145334A1 |
One embodiment off this control device without a rotation sensor is a control device that controls an inverter (1) that drives a synchronous device (2), and is equipped with phase angle and angular velocity estimation units (5,6), which ...
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WO/2011/135652A1 |
Provided is a motor control apparatus that can easily distinguish between a current sensor error and a rotation-angle sensor error, without making the current sensor a duplex system. An MGECU (140) estimates the W-phase current on the ba...
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WO/2011/132269A1 |
A control device (200) for a motor drive system (100) including an AC motor (MG1) having a magnet on a rotor, a converter (120) and an inverter (130), generates a boost command value for the converter (120) on the basis of a torque comma...
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WO/2011/129423A1 |
A rotor phase/velocity estimation device is provided with a high-frequency voltage application means, a high-frequency current fundamental-wave component amplitude extraction means, a correlation signal generation means, and a rotor phas...
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WO/2011/121043A1 |
A torsional mode damping controller system connected to a converter that drives a drive train including an electrical machine and a non-electrical machine. The controller system includes an input interface configured to receive measured ...
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WO/2011/117139A2 |
The invention relates to a method and a device for determining output torque (Mreal) of an electric drive (20) by measuring a current (I) received by the electric drive (20). According to the invention, a correction current (lkorr) is ca...
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WO/2011/117248A2 |
The invention relates to a machine (M) having a converter-controlled drive (VFD), having a processing machine (WM), wherein the machine (M) has at least one rotor (R), having a frequency converter (VFG), which converts an input frequency...
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WO/2011/117183A2 |
The invention relates to a machine (M) having a converter-controlled drive (VFD), having a processing machine (WM), wherein the machine (M) has at least one rotor (R), having a frequency converter (VFG), which converts an input frequency...
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WO/2011/114962A1 |
Electric power supplied by an alternating-current power supply (1) is used as the input of a rectification circuit (2), and the output of the rectification circuit (2) is used as the input of a smoothing capacitor (3) having small capaci...
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WO/2011/114765A1 |
Provided is an actuator control device capable of suppressing vibration during a regeneration period. The actuator control device comprises: a target speed calculation means (121) for calculating a target number of rotations of a motor; ...
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WO/2011/105355A1 |
Torque ripples can be suppressed favorably, by reducing delays in the estimation of the real part and imaginary part components of a periodic-disturbance, in torque ripple suppression control by a periodic-disturbance observer. The perio...
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WO/2011/105676A1 |
The present invention relates to an apparatus and method for controlling the speed of a wound-rotor induction motor. Specifically, a wound-rotor induction motor according to one embodiment of the present invention comprises: a rectifying...
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WO/2011/099506A1 |
Disclosed is a motorized tool such that phase control using transistors or antiphase control using the same is performed in an inexpensive and simple configuration and that electromagnetic noise is suppressed. For this purpose, a constan...
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WO/2011/096051A1 |
Disclosed is an ECU that executes a program which includes: a step (S100) of detecting the rotating speed of a motor; a step (S102) of determining the diffusion range of a carrier frequency; a step (S104) of determining the carrier frequ...
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WO/2011/096119A1 |
Provided is an elevator control device wherein it is possible to perform stable vector control in the entire speed range from speed zero to a low speed by means of position sensorless drive control. A drive command output means controls ...
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WO/2011/095225A1 |
The invention comprises a drive controller arranged to provide electrical power from a power supply (10) to a machine (8) or load, over a long AC power cable of the order of kilometers. The drive controller (4) is arranged with circuits ...
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WO/2011/089656A1 |
In order to avoid an unstable state even when any phase of motor has broken down, by means of a simple configuration, the disclosed motor drive system is provided with: a motor wherein a coil having a plurality of phases (at least 5) is ...
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WO/2011/082851A1 |
The invention relates to a method for controlling an electric motor (1) for driving a motor vehicle by means of a drive train, having the following steps: measuring the angle of rotation of a rotor (2) of the electric motor (1) multiple ...
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WO/2011/080822A1 |
The disclosed power conversion device is provided with: a power converter (2) that drives an induction machine (1); and a control unit (5) that controls the power converter (2). The control unit (5) has a drive-stopping unit (10) that is...
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WO/2011/080823A1 |
The disclosed drive control device of an alternating-current motor is provided with: an inverter (INV) that has a plurality of switching elements that are subjected to on/off control, and that converts direct-current voltage to alternati...
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WO/2011/080792A1 |
A control device for an asynchronous electric machine (2) comprising a first computing unit (14) configured for defining a first signal (S3), indicating a desired slip frequency (fsd) of the electric machine (2), as a function of a secon...
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WO/2011/079601A1 |
A self-starting rare earth permanent magnet motor includes three-phase stator windings. Terminals (A2-C2，A3-C3，X1-Z1，X2-Z2，X3-Z3) of each phase stator winding except for a beginning terminal and an end terminal (A-C，A1-C1，X1-...
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WO/2011/080791A1 |
A control device for an asynchronous electric machine (2) comprises a first computing unit (10) configured for defining a first signal (Sl), which is correlated to an operating voltage (V) to be applied to the electric machine (2). The f...
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WO/2011/077589A1 |
An electrical angle estimation unit (110) calculates an estimated electrical angle (θeb') on the basis of an induced voltage (e) generated by a motor (20), and obtains an estimated electrical angle (θeb) by correcting the estimated ele...
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WO/2011/077714A1 |
Provided are hydraulic pumps (32a, 32b) for discharging working oil, a group of hydraulic cylinders (35), a traveling motor (36), an operating device (17) operated to operate/control the group of hydraulic cylinders (35) and the travelin...
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WO/2011/077919A1 |
Damage to a switching element caused by a reverse recovery current is prevented. A reverse recovery current prevention device (2) is provided with a full wave rectification unit (21), first and second diodes (D22 and D23), a switching el...
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WO/2011/070165A2 |
The invention relates to a device for controlling a permanent-magnet synchronous machine "PMSM" comprising: a sensor for sampling a value θ m of the rotor position, monitoring means for monitoring an operating point of the PMSM accordin...
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WO/2011/070651A1 |
The disclosed power conversion device is provided with: a power converter (2) that drives an induction machine (1); a control unit (40) that controls the power converter (2); and a braking power command computation unit (6) that computes...
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WO/2011/067467A1 |
A motor control system for a hoist drive having an electric motor (2) operationally connected to a hoisting member (4) for hoisting a load (6), the motor control system being adapted to generate a final angular frequency reference (ω*s)...
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WO/2011/064846A1 |
An electric vehicle power conversion device comprises: a power converter (2) for driving an induction machine (1) according to arbitrary dq-axis voltage commands (Vd*, Vq*); and a control unit (40) for controlling the power converter (2)...
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WO/2011/065165A1 |
Provided is a control device of a motor drive device which is preferable to control an AC motor which can have a large operating point range. The control device is provided with: a current control unit; a voltage control unit; a current ...
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WO/2011/065406A1 |
Provided is an apparatus that drives and controls an AC motor seamlessly, without switching the control mode thereof. A basic component calculator (34) calculates a basic coefficient according to torque errors. A Delta calculator (36) ca...
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WO/2011/047971A2 |
The invention relates to an electrically commutated electrical motor having a stator and having an in particular permanent-magnetically designed rotor. The electronically commutated electrical motor also has a control unit which is conne...
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WO/2011/043118A1 |
A motor system comprises a motor (3), wherein the ratio of the number of armature magnetic poles of a stator (53), the number of magnetic poles of a first rotor (51), and the number of cores of a second rotor (52) is set to 1:m:(1+m)/2, ...
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WO/2011/042186A2 |
The invention relates to a damping circuit for a synchronous servomotor including at least one winding, wherein the circuit comprises at least one main damping resistor, a means for coupling the main damping resistor in series to the win...
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WO/2011/040845A1 |
An electric motor (100) having a motor control system (400) including: -a current measuring means (402) for directly or indirectly measuring the electric current in the rotor windings (7) providing a rotor current value/s, -an ambient te...
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WO/2011/034109A1 |
A three-phase AC motor drive control device has a phase command calculation unit. When driving a three-phase AC motor by a three-phase alternating square-wave voltage that is converted in power according to a switching command correspond...
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WO/2011/024095A1 |
An active reactive induction motor is provided. The motor comprises two sets of three-phase windings. One set of windings carries the active power and is called the power windings. The second set of windings carries the reactive power an...
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WO/2011/018302A1 |
The invention relates to a method for monitoring a drive state, particularly a non-driven drive state, of an electric motor supplied with power by means of a bridge inverter having at least one half bridge, comprising capturing a state o...
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WO/2011/005678A2 |
Motor control systems comprise a motor control circuit, a processing circuit operably coupled to the motor control circuit, and a current sensor operably coupled to the processing circuit. The current sensor may be configured to sense a ...
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WO/2011/002015A1 |
Provided is a motor driving device that assesses whether a common-mode filter is furnished at the output side of an electric-power conversion device of the motor driving device, and that can also avoid increase in loss of the electric-po...
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WO/2010/150786A1 |
Provided is a control device for an electric motor drive unit that is capable of altering system voltage while suppressing the vibrations of an AC motor even during the square wave control, and that is capable of expanding the region use...
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WO/2010/144308A2 |
A system and method for controlling an AC motor drive includes a control system programmed with an energy algorithm configured to optimize operation of the motor drive. Specifically, the control system input an initial voltage-frequency ...
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WO/2010/137096A1 |
Provided is a washing machine characterized by being configured to be provided with a permanent magnet which has coercive force at a level capable of easily changing the magnetization quantity, on the rotor side, and being provided with ...
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