一种基于变频电流信号的IPMSM无位置传感器高频注入电流噪声抑制方法  

A Variable Frequency Current Injection Sensorless Control Strategy of IPMSM for Audible Noise Reduction

作　　者：杜博超[1] 崔淑梅[1] 宋立伟[1] 韩光辉[2] Du Bochao;Cui Shumei;Song Liwei;Han Guanghui(School of Electrical Engineering and Automation Harbin Institute of Technology,Harbin 150001 China;Zhengzhou Yutong Bus Company Limited,Zhengzhou 450047 China)

机构地区：[1]哈尔滨工业大学电气工程及自动化学院,哈尔滨150001 [2]郑州宇通客车股份有限公司,郑州450047

出　　处：《电工技术学报》2020年第18期3830-3837,共8页Transactions of China Electrotechnical Society

基　　金：国家重点研发计划(2017YFB0102400);国家自然科学基金青年科学基金(51807034)资助项目。

摘　　要：高频信号注入法是广泛应用于内置式永磁同步电机(IPMSM)无位置传感器控制领域的经典方法,在电机低速段具有良好的动态特性和稳态特性。但是,伴随着高频谐波的注入,高频响应电流产生的高频噪声成为一个主要的噪声来源。为降低这种噪声,该文提出一种基于变频电流信号注入的内置式永磁同步电机无位置传感器控制策略,通过连续改变谐波电流的频率,分散谐波在频谱上的能量,消除尖峰,从而降低高频电流噪声。为实现变频谐波电流注入,重新设计电机的电流环,采用线性自抗扰控制器与谐振控制器实现高频电流信号注入。实验结果表明,该方法能够有效地改善谐波电流的频谱分布,从而降低高频电流噪声。High frequency(HF)signal injection is a classical method widely used in sensorless control of interior permanent magnet synchronous motors(IPMSM),acquiring good dynamic and steady characteristics.However,the audible noise created by the injected HF signal becomes one of the main sources of noise.In this paper,a variable frequency current injection method is proposed to reduce this noise.By continuously changing the frequency of harmonic current,the energy of the harmonics in the spectrum is dispersed,and the peak is eliminated.In this way,the high frequency current noise can be reduced.In order to realize the variable frequency harmonic current injection,the current loop of the motor is redesigned,and the high frequency current signal injection is realized by the linear active disturbance rejection controller and the resonance controller.The experimental results show that this method can effectively improve the spectral distribution of harmonic current and reduce the high frequency current noise.

关 键 词：永磁同步电机 无传感器控制 自抗扰控制器 噪声抑制 

分 类 号：TM351[电气工程—电机]