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WO/2007/034689A1 |
There is provided an AC synchronous motor initial magnetic pole estimation device not using a magnetic pole detector including a thrust or torque pattern generation unit for generating a thrust or torque pattern, a magnetic position inst...
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WO/2007/031058A1 |
Method for operating an electrical machine (M) which has at least two electrically isolated stator windings (W1, W2), the first stator winding (W1) being fed via a first converter element (U1), and the second stator winding (W2) being fe...
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WO/2007/020766A1 |
A torque ripple suppressor (50) comprising an SR motor (20) coupled with an engine, a means (24) for detecting the rotational position of the SR motor (20), a means (41) for calculating the interval of pulses outputted from the rotationa...
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WO/2007/016919A1 |
Electromechanical knocking device and knocking method for working, smoothing and cold-hardening the surface of tools, machine parts and other parts by hammering an impact head onto the surface of the said parts by means of mounting them ...
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WO/2007/003868A1 |
An electric motor (10) which includes an armature (11) with at least two armature phase pair windings (12) and salient pole rotor arrangement (15) having field windings (17) terminating in a selective electrical switch which determines t...
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WO/2007/001340A2 |
A rotating electrical machine, such as an aircraft starter-generator, that may be operated in either a DC motor mode or an AC generator mode. The machine includes a conventionally wound main stator (124) that is selectively configurable ...
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WO/2007/001007A1 |
A control system of an inverter performing power conversion between AC and DC is configured as follows. A frequency calculation is performed according to a voltage value of two axes obtained via two current regulators so that the respect...
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WO/2006/131878A1 |
The present invention relates to a device (20) and a method for sensorless measuring a mechanical rotor frequency of a rotor (6) of an asynchronous machine (40), wherein the rotor (6) has a predetermined defect and the asynchronous machi...
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WO/2006/131459A2 |
The invention relates to a method for controlling a reluctance motor which comprises a rotor and a stator. The rotor comprises a plurality of rotor segments and the stator comprises a number which are independent from the coils, for exam...
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WO/2006/130565A2 |
A single or multiphase alternating current electric motor or synchronous generator includes main windings and additional windings that perform de-saturation of the magnetic field of the main windings. Each additional winding is fed throu...
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WO/2006/125240A1 |
The invention relates to a method and a circuit arrangement for position and/or speed control of a linear drive, in particular, a servo drive for a linear robot. An electric motor is supplied by a converter (3) with a control unit (4) an...
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WO/2006/126426A1 |
There is provided a linear motor control method as follows. A slider moves along a base core arranged in parallel to a linear scale and the position of the slider is detected by using the linear scale. According to the detected position,...
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WO/2006/123659A1 |
A motor includes: rotor salient poles and stator salient poles arranged at an identical interval in the circumferential direction of the phase A, phase B, and phase C; a magnetic flux passing magnetic path as a magnetic path for a magnet...
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WO/2006/121958A1 |
A variable speed drive with a boost converter is provided for a chiller system driven by a switched reluctance motor. The boost converter can be a diode or thyristor rectifier followed by a boost DC/DC converter or a three-phase pulse wi...
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WO/2006/122307A2 |
An apparatus (100,200) comprises a brushless motor (10), driver (110,114), incremental displacement sensor (120), and processor (130). The motor (10) has a rotor (12), stator (22), and electrical terminals accepting a drive signal. The i...
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WO/2006/115411A2 |
The invention relates to a control circuit for controlling the power supplied from a power source to an electromotor, whereby the control circuit comprises a semiconductor switching element connected in series to the electromotor and the...
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WO/2006/111252A1 |
The invention relates to a method for heat-treating metal work pieces, whereby a cooling gas flow is produced in a vacuum furnace by means of a fan, driven by a three-phase AC motor, in order to quench the work pieces. The aim of the inv...
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WO/2006/113121A1 |
This application describes a motor designed to operate as a reluctance machine at low speeds and as an induction machine at high speeds. The drive waveform is composed of one or more harmonics to be used to match the reluctance pattern o...
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WO/2006/109037A1 |
An electromechanical generator comprising an electromechanical device for converting mechanical vibrational energy into electrical energy, the electromechanical device being a velocity damped resonator having a damping coefficient and a ...
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WO/2006/108146A1 |
The present invention intends to attain the objective of generating a new drive force additionally and constantly during rotation generated by the driving force from the outside at any rotational frequency inside the mechanism. The prese...
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WO/2006/106642A1 |
Parameters “n”, “ad”, “pd”, “aq”, “pq” and the like of motor parameter setting means (4) are set so as to satisfy [Expression 23] and the like. According to these parameters “n”, “ad”, “pd”, “aq”, “p...
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WO/2006/103159A1 |
The invention relates to a device for generating electrical power from mechanical power. Said device comprises: a generator (1) having a rotor and a stator for converting mechanical power to a multi-phase alternating current (6); prefera...
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WO/2006/100420A1 |
The present invention relates to an electrical machine such as a brushless dc rotating or linear machine, for example. The electrical machine includes a first electronic commutator and a first stator winding including a number of coils l...
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WO/2006/098208A1 |
A printing medium conveying technique is disclosed for moving a printing medium in a sub scanning direction. The technique involves controlling the moving of the printing medium through feedback control using a speed profile. The speed p...
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WO/2006/098703A1 |
The invention relates to a circuit and a method for controlling a reluctance motor, powered from the public power transmission system (the power grid), and, in particular, it relates to a method of operation which allows the drive electr...
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WO/2006/093549A1 |
A switched reluctance traction system (110-1 to 110-4) is provided for work machines (100). The switched reluctance traction system may include a plurality of switched reluctance motors (202-1, 202-2). Each switched reluctance motor may ...
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WO/2006/076235A1 |
A multi-phase motor drive includes coil magnets that generate a magnetic field when energized with an electrical current. The coil magnets are configured in an electrical matrix. Switches are arranged in an electrical circuit with the co...
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WO/2006/072614A1 |
The invention relates to a method for regulating the current supply of a coil (3) of a reluctance motor (M) and an electric circuit arrangement (S) for supplying a coil of a reluctance motor (M) with current and for discharging the curre...
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WO/2006/070266A2 |
A motor control unit and a vehicle equipped with the unit according to the invention includes a control unit that selects a switching frequency, that is, a carrier frequency, in accordance with a rotation speed of the motor and a torque ...
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WO/2006/061978A1 |
A multi-phase current supplying circuit comprises a converter (2), an intervening circuit (3a), an inverter (4), a control circuit (6) and a lightning arrester (7). A power supply system (1) is connected to the converter (2) via the ligh...
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WO2006039626A9 |
A single controllable switch (509) drive system for regulating the speed of a two-phase switched reluctance machine (TPSRM) (700) rotor may include a speed control feedback loop (970) component that uses an established speed control sign...
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WO/2006/059028A2 |
The invention concerns a method for controlling a vehicle driving assembly which consists in applying to a variable reluctance machine (6) a conduction angle setpoint value (??p), in regulating said conduction angle setpoint value (?p) u...
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WO/2006/059023A1 |
The inventive method for controlling a drive assembly (22) of a vehicle consists in applying a conduction angle set value greater than 180° to a variable reluctance machine (6) in such a way that said machine operates in a continuous cu...
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WO/2006/060319A1 |
A method and an apparatus optimize performance of a motor drive system (45). The method according to one embodiment comprises: selecting a property for a rated operation point; selecting inverter system characteristics and motor characte...
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WO/2006/057529A2 |
Disclosed are an operation control device of a compressor, which can reduce motor (M) loss by applying an AC power to a motor (M) of the compressor without a switching operation of a control unit (Tr), and a method thereof. The operation...
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WO/2006/054676A1 |
A rotary electric machine (1) comprises a stator (2) and a rotor (3). A tip end at the salient pole section of the rotor (3) is cut off asymmetrically in the lateral direction. Consequently, torque ripple is reduced during regenerative o...
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WO/2006/050014A1 |
A variable reluctance motor and methods for control. The motor may include N motor phases, where N equals three or more. Each motor phase may include a coil to generate a magnetic flux, a stator and a rotor. A flux-carrying element for t...
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WO/2006/050107A2 |
A drive system is provided for a utility vehicle and includes an alternating-current (AC) motor for providing a drive torque. An AC motor controller receives a battery voltage signal, throttle pedal position signal, brake pedal position ...
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WO/2006/049039A1 |
A voice coil motor control device (30) capable of improving the hysteresis characteristics of a voice coil motor (31) without complicating its configuration, thereby to perform a proper lens position control. The control device (30) comp...
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WO/2006/046986A1 |
A system and method of restarting a switched reluctance motor after a cycling of power provided to the motor is provided that includes receiving at the motor a power-off signal followed by a power-on signal, determining a rotational spee...
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WO/2006/038510A1 |
There is provided a linear motor system capable of realizing a long stroke of a linear motor while saving energy and reducing cost. The linear motor system includes a linear motor (100), a controller (7) for supplying variable voltage, a...
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WO/2006/035540A1 |
In accordance with variation in a DC voltage, i.e. an input voltage Vdc(t) to an inverter circuit, the duty ratio D(t) of a voltage pulse in the carrier period immediately after is modified. More specifically, processing for correcting t...
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WO/2006/033085A2 |
This invention relates to a motor control circuit (1) which increases the efficient power of Universal AC motors (2) used in actuating high capacity washing machines without leading to a reduction of life expectancy of current conducting...
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WO/2006/024920A1 |
A method for the control of a wound rotor synchronous motor comprises measuring a plurality of electromagnetic parameters (0, Ia, Ib, Ic) indicative of the operation of said motor, generating voltage on a stator of said motor to obtain a...
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WO/2006/024344A1 |
The invention relates to a selector drive for automatic manual transmissions of motor vehicles, which comprises an electric motor whose rotation is transmitted to the selector mechanism for selecting a selector position by means of a mec...
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WO/2006/021077A1 |
An induction motor system comprising an induction motor, equipped with a heat recovery and water pumping apparatus and an apparatus for controlling the electrical efficiency and resulting heat generation of the induction motor. The motor...
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WO/2006/008540A1 |
A Stirling engine (1) includes a reciprocating piston which drives an alternator to provide an electrical output (7). The current signal (7) is measured by a current monitor (60) and a fast Fourier Transform value is produced. The FFT of...
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WO/2006/008777A1 |
The present invention concerns a device for driving an electromagnet (4), particularly for operating pumps, comprising a primary winding (3) and a moving element (9), the device comprising power switching electronic means (S1, S2), the d...
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WO/2006/006235A1 |
A motor controlling device for mounting on a vehicle, having a controller capable of controlling a DC brushless motor at high response and high accuracy. The motor controlling device for mounting on a vehicle adapted to drive a DC brushl...
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WO/2006/003617A1 |
The system changes frequency of the toothbrush to adjust the amplitude of motion of the brush portion of the toothbrush. The change in frequency occurs either manually or automatically. In the manual embodiment, the user, via a switch an...
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