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A car-bldcm torque ripple suppression control system and method

A technology for suppressing control and torque ripple, applied in torque ripple control, control systems, vector control systems, etc., to solve problems such as torque ripple and hindering the promotion and application of motors

Active Publication Date: 2021-03-16
SHENYANG POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the coil-assisted reluctance type brushless DC motor is double-salient, and the magnetic circuit presents strong nonlinearity and high saturation, which leads to some disadvantages when the motor is running. The most obvious disadvantage is the torque ripple, which hinders the promotion of the motor. and application

Method used

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  • A car-bldcm torque ripple suppression control system and method
  • A car-bldcm torque ripple suppression control system and method
  • A car-bldcm torque ripple suppression control system and method

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Embodiment Construction

[0068] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0069] The coil-assisted reluctance type brushless DC motor includes a motor casing (8), a motor front end cover (5), a motor rear end cover (6), a motor shaft (4), a layer of magnetically conductive material covering the shaft, and a central excitation Coil (10), first salient pole stator (12), second salient pole stator (11), armature winding, first salient pole rotor (3), second salient pole rotor (7); The motor front cover is set at one end of the motor casing, the motor rear cover is set at the other end of the motor casing, one end of the motor shaft passes through the middle hole of the motor front cover, and the other end of the motor shaft passes through the motor...

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Abstract

The invention provides a CAR- BLDCM torque ripple suppression control system and method, and relates to the technical field of brushless direct current motor control. According to the method, the difference between the actual rotating speed and the given rotating speed is used as the input of a fuzzy PI regulator, and the output is a reference total torque of the motor; the reference total torquepasses through a torque distribution module to obtain a three-phase reference torque; the reference torque of each phase outputs three-phase reference current through a torque-current RBF neural network inverse module; each phase of reference current and actual three-phase current output a PWM control signal through a current hysteresis controller, errors of the actual torque and the load torque of the motor are adjusted through single-neuron self-adaptive PID to output an exciting coil current control signal, and the two control signals control the motor to operate stably at the same time. According to the method, the CAR-BLDCM torque ripples can be effectively inhibited, the stable operation capability of the motor is improved, and meanwhile, the application field of the brushless directcurrent motor is widened.

Description

technical field [0001] The present invention relates to the technical field of brushless DC motor control, in particular to a coil assisted reluctance brushless DC motor (Coil assisted reluctance brushless DC motor, CAR-BLDCM) torque ripple suppression control system and method. Background technique [0002] Since its appearance, switched reluctance motors have been widely used in the field of electric transmission due to their low cost, simple structure, reliable performance, and good speed regulation performance. On the basis of the switched reluctance motor, the doubly salient motor has become a popular special motor in recent years, and its control technology is becoming more and more mature. Compared with other motors, the new salient pole stator-rotor brushless coil excitation DC motor (patent number: 2015201765161) type coil-assisted reluctance brushless DC motor has a simple and stable structure, does not require permanent magnets, and is suitable for frequent starti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02P6/10H02P21/00
CPCH02P6/10H02P21/0014
Inventor 刘爱民孟繁贵娄家川任达王新宇
Owner SHENYANG POLYTECHNIC UNIV