Device and method for controlling doubly salient permanent magnet motor

A technology of permanent magnet motor and doubly salient poles, which is applied in the direction of torque ripple control, etc., can solve the problem of large torque ripple of doubly salient pole permanent magnet motors, achieve fast torque response and speed regulation performance, and brake quickly , the effect of reducing torque ripple

Inactive Publication Date: 2010-07-28
SOUTHEAST UNIV
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  • Abstract
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Problems solved by technology

[0004] Technical problem: The technical problem to be solved by the present invention is to provide a doubly salient pole permanent magnet motor control device and control method t

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  • Device and method for controlling doubly salient permanent magnet motor
  • Device and method for controlling doubly salient permanent magnet motor
  • Device and method for controlling doubly salient permanent magnet motor

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[0024] The present invention will be further described below in conjunction with the drawings.

[0025] There are other different embodiments of the present invention, and the details of the various embodiments can be improved obviously without departing from the present invention. Therefore, the drawings and description are intended to explain the essential issues and not restrictive.

[0026] The present invention provides a novel control system for a double salient permanent magnet motor, which includes a double salient permanent magnet motor, a rotational speed measuring unit, a rotational speed regulator, a torque observer, a torque regulator, a position sensor, a reference current generator, Current sensor, current hysteresis tracking controller and inverter. Wherein, the rotational speed measuring unit measures the rotational speed of the doubly salient permanent magnet motor, and the difference between the required reference rotational speed and the rotational speed output...

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Abstract

The invention provides a device and a method for controlling a doubly salient permanent magnet motor. The device comprises a doubly salient permanent magnet motor, a rotational speed measuring unit, a rotational speed regulator, a torque observer, a torque regulator, a position sensor, a reference current generator, a current sensor, a current hysteretic loop tracking controller and an inverter. According to the method, proportional integrated controllers are adopted by both the rotational speed regulator and the torque regulator and amplitude limiting is performed on the output of the rotational speed regulator and the torque regulator. The device and the method for controlling the doubly salient permanent magnet motor have simple control, can effectively restrict motor torque pulse, reduce noises, and improve dynamic response and speed adjusting performance of the motor.

Description

technical field [0001] The invention relates to a novel control system of a doubly salient pole permanent magnet motor, which belongs to the field of motor control. Background technique [0002] With increasing attention to energy and environmental issues, electric vehicles are showing a trend of accelerated development. In order to realize the rapid start and smooth operation of electric vehicles, the vehicle drive motor is the key. The motor should have the characteristics of good speed regulation performance, fast torque response, and maintenance-free. At present, the motors used in electric vehicles mainly include DC motors, asynchronous motors, switched reluctance motors, permanent magnet brushless DC motors and permanent magnet synchronous motors. The control of DC motor is simple and the technology is mature, but the operation reliability is affected due to the existence of brushes and commutator. Asynchronous motors are cheap, but have low power factors and complex...

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Application Information

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IPC IPC(8): H02P6/10
Inventor 樊英葛路明薛钟兵
Owner SOUTHEAST UNIV
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