改进型滑模观测器的PMSM无位置传感器控制

微特电机 ›› 2020, Vol. 48 ›› Issue (3): 6-11.

改进型滑模观测器的PMSM无位置传感器控制

廖勇, 莫家宝, 燕罗成

重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆 400044

收稿日期:2018-10-11 出版日期:2020-03-28 发布日期:2020-03-30
作者简介:廖勇(1964—), 男,教授,博士生导师,主要从事电机运行与控制的教学和科研工作。
基金资助:
重庆市科委基础研究与前沿探索(重合)项目(cstc2017jcyjBX0072)

Sensorless Control of Permanent Magnet Synchronus Motor Based on Improved Sliding Mode Observer

LIAO Yong, MO Jiao-bao, YAN Luo-cheng

State Key Laboratory of Power Transmission Equipment & System Security and New Technology,Chongqing University,Chongqing 400044,China

Received:2018-10-11 Online:2020-03-28 Published:2020-03-30
About author:2020-3-6.pdf

摘要/Abstract

摘要： 基于滑模观测器的永磁同步电机(PMSM)无位置传感器控制中,由于电压谐波与电流误差的存在,使得估算得到的位置中含有大量脉动分量。研究了一种采用准谐振趋近律来代替饱和函数的改进型滑模观测器,进一步设计了谐振频率与增益随电机频率的自适应调节来扩宽运行范围,该方法不需要低通滤波器。在不同工况下的仿真和实验结果验证了改进型方法的有效性。

关键词: 无位置传感器控制, 谐波, 永磁同步电机, 滑模观测器

Abstract: In the sensorless control of PMSM based on sliding mode observer, the estimated position contains a large number of pulsating components due to the presence of voltage harmonics and current error.An improved sliding mode observer was studied,the saturation function was replaced by the quasi-resonant approaching.The adaptive adjustment of the resonant frequency and gain was further designed to widen the operating range.This method does not require a low pass filter. Simulation and experiments were carried out under different working conditions. The results verified the effectiveness of the improved method.

Key words: position sensorless control, harmonic, permanent magnet synchronous motor (PMSM), sliding mode observer

中图分类号:

TM351

廖勇, 莫家宝, 燕罗成. 改进型滑模观测器的PMSM无位置传感器控制[J]. 微特电机, 2020, 48(3): 6-11.

LIAO Yong, MO Jiao-bao, YAN Luo-cheng. Sensorless Control of Permanent Magnet Synchronus Motor Based on Improved Sliding Mode Observer[J]. Small & Special Electrical Machines, 2020, 48(3): 6-11.

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