基于高频信号注入的IPMSM无位置传感器控制策略

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摘要为了提高无位置传感器内置式永磁同步电机(IPMSM)的低速运行性能, 提出一种基于高频信号注入的转子位置鲁棒观测方法。采用注入脉振高频电压信号的方式, 通过高频电流的幅值信息获取转子位置误差信号, 对信号处理及数字滤波器设计进行分析。在此基础上, 研究一种具有较强抗负载扰动能力的转子位置观测器, 通过考虑负载扰动转矩动态特性, 给出位置鲁棒观测器的理论设计方法, 根据实际扰动转矩特点及位置观测期望误差, 采用极点配置法设计反馈矩阵系数。通过IPMSM无位置传感器矢量控制系统进行了实验, 结果验证了该控制策略的有效性。

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	王高林
	杨荣峰
	李刚
	于泳
	徐殿国

关键词 ：内置式永磁同步电机, 转子位置观测器, 低速运行, 脉振高频信号注入, 负载扰动

Abstract：A robust position observer of sensorless interior permanent magnet synchronous motor (IPMSM) adopting high frequency signal injection is proposed for low speed operation. The rotor position error signal is obtained from the magnitude of the induced high frequency current by injecting pulsating high frequency voltage. Both the signal process and the digital filter design are analyzed. On the basis, a robust rotor position observer with improved robustness for load disturbance is proposed. The theory design method of the robust observer was studied considering the dynamic characteristic of the load change. Then pole assignment method is adopted for the feedback gain matrix selection of the observer according to the load disturbance and the expected estimation error. The experimental results demonstrate the feasibility of the sensorless control strategy by an IPMSM vector controlled system.

Key words： IPMSM rotor position observer low speed operation pulsating high frequency signal injection load disturbance

收稿日期: 2011-07-25 出版日期: 2014-03-20

PACS:

TM346

基金资助:教育部高校博士点科研基金(20102302120012)和中国博士后科学基金特别(201003427)资助项目。

作者简介: 王高林男, 1978年生, 博士后, 讲师, 研究方向为交流电机控制理论与应用、无传感器控制技术。杨荣峰男, 1979年生, 博士, 讲师, 研究方向为电力电子应用及电机控制技术。

引用本文:

王高林, 杨荣峰, 李刚, 于泳, 徐殿国. 基于高频信号注入的IPMSM无位置传感器控制策略[J]. 电工技术学报, 2012, 27(11): 62-68. Wang Gaolin, Yang Rongfeng, Li Gang, Yu Yong, Xu Dianguo. Position Sensorless Control Strategy of IPMSM Based on High Frequency Signal Injection. Transactions of China Electrotechnical Society, 2012, 27(11): 62-68.

链接本文:

http://dgjsxb.ces-transaction.com/CN/Y2012/V27/I11/62

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