Permanent magnet synchronous motor robust control system and method

A permanent magnet synchronous motor, robust control technology, applied in the control system, vector control system, motor generator control and other directions, can solve the problems of poor dynamic performance and robustness of the control system, large amount of calculation, etc., to achieve strong anti-disturbance Capability and robustness, low computational cost, damage avoidance effect

Pending Publication Date: 2021-06-04
KUNMING UNIV OF SCI & TECH
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a permanent magnet synchronous motor robust control system and method to solve the problems of poor dynamic performance and robustness and large amount of calculation of the control system in the prior art

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  • Permanent magnet synchronous motor robust control system and method
  • Permanent magnet synchronous motor robust control system and method
  • Permanent magnet synchronous motor robust control system and method

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Embodiment Construction

[0038] In order to illustrate the technical solutions of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.

[0039] The present invention provides a permanent magnet synchronous motor robust control system, such as figure 1 As shown, including speed / position sensor module, current sensor module, Clark transformation module, Park transformation module, speed-current prediction controller module, current limiter module, inverse Park transformation module, SVPWM module, permanent magnet synchronous motor PMSM module and inverter module.

[0040] The speed / position sensor module is respectively connected with the permanent magnet synchronous motor PMSM module, Park transformation module, inverse Park transformation module and speed-current prediction controller module, and is used to collect the position angle θ and mechanical angular velocity ω of the permanent magnet synchronous motor PMSM module m , inpu...

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Abstract

The invention is suitable for the technical field of motor control, and provides a permanent magnet synchronous motor robust control system and method, and the method specifically comprises the steps: a rotating speed / position sensor collects the position angle and rotating speed of a permanent magnet synchronous motor; a current sensor, a Clark conversion module and a Park conversion module obtain d-axis current and q-axis current; a rotating speed-current prediction controller inputs the obtained d-axis current, q-axis current and mechanical angular velocity and the set d-axis reference current and reference mechanical angular velocity to obtain d-axis reference voltage and q-axis reference voltage; after a current amplitude limiting module inputs the d-axis reference voltage and the q-axis reference voltage, the d-axis voltage and the q-axis voltage after amplitude limiting are obtained; and an inverse Park conversion module and a SVPWM module calculate the d-axis voltage and the q-axis voltage to obtain an inverter switch output signal, thereby outputting a three-phase voltage to drive a motor to operate. The robust performance of the permanent magnet synchronous motor system can be improved, the current constraint can be processed, the control structure is simple, and engineering realization is easy.

Description

technical field [0001] The invention belongs to the technical field of motor control, and in particular relates to a robust control system and method for a permanent magnet synchronous motor. Background technique [0002] Due to the advantages of high efficiency, high torque-to-current ratio, high power density, and reliability, permanent magnet synchronous motors have been widely used in electric vehicles, aviation industry and other fields. The operating conditions of equipment such as electric vehicles and aircraft are complex and changeable, and the motors assembled in them will inevitably cause the uncertainty of the drive system due to problems such as severe vibration of the equipment or internal temperature changes during operation, and the motor parameters will vary with the speed of the motor. and internal temperature changes, there is a problem of parameter perturbation. These issues can lead to poor motor control performance, affecting equipment performance. Th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P21/00H02P21/14H02P27/08H02P25/022
CPCH02P21/0003
Inventor 崔佳伦陈峥申江卫沈世全李镇伍
Owner KUNMING UNIV OF SCI & TECH
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