电工技术学报  2016, Vol. 31 Issue (1): 155-164    DOI:
电机与电器 |
基于磁饱和效应的表贴式永磁同步电机初始位置检测方法
田兵,安群涛,孙东阳,孙力,赵克
哈尔滨工业大学电气工程系 哈尔滨 150001
Initial Position Estimation for Surface Permanent Magnet Synchronous Motors Based on Magnetic Saturation Effect
Tian Bing,An Quntao,Sun Dongyang,Sun Li,Zhao Ke
Department of Electrical Engineering Harbin Institute of Technology Harbin 150001 China
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摘要 根据表贴式永磁同步电机磁饱和效应模型检测转子初始位置,并通过有限元分析验证了其有效性;在位置检测算法上采用旋转电压注入法,通过高通与谐振滤波器显著放大微弱的高频电流响应,并高效衰减直流成分;结合改进的解调算法,准确提取出负序直流分量和铁心饱和度评价函数;转子位置检测结果由锁相环估算的转子方向结合基于饱和度评价函数的磁极极性判定方法来确定。通过Matlab/Simulink搭建了表贴式永磁同步电机零速下磁饱和仿真平台,验证了该文所提算法的有效性,同时硬件平台实验进一步验证了该方法具有简单可靠、准确度较高等特点。
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田兵
安群涛
孙东阳
孙力
赵克
关键词 表贴式永磁同步电机初始位置检测磁饱和效应高通与谐振滤波器锁相环    
Abstract:In this paper,the magnetic saturation model for surface permanent magnet synchronous motors (SPMSMs) is adopted to detect the initial rotor position.The model is also verified by the transient finite element analysis (FEA) method.The proposed algorithm is based on the injection of high-frequency (HF) rotating voltage vector,which produces the HF current response.Then this weak HF current is filtered and amplified significantly via a high pass and resonance filter which can also remove the DC components effectively.After that,an improved demodulation method is introduced to extract the useful information including the negative-sequence DC component and the iron core saturation evaluation function.The rotor direction is then estimated primarily via a phase-locked loop (PLL) with the extracted negative-sequence component and the magnetic polarity is furthermore confirmed via injecting a DC voltage vector at the estimated rotor direction and comparing the saturation evaluation function before and after.Overall the rotor position is estimated with the rotor direction and the magnetic polarity.The proposed initial position algorithm is validated by the 3.6 kW hardware drive system as well as on the Matlab/Simulink simulation platform using the suggested magnetic saturation model.It is proved to be simple,reliable,and with high precision.
Key wordsSPMSM    initial position estimation    magnetic saturation effect    high pass and resonance filter    phase-locked loop   
收稿日期: 2015-01-14      出版日期: 2016-01-21
PACS: TM315  
基金资助:国家自然科学基金(51207029)、中国博士后科学基金(2012M510089、2014T70333)和黑龙江省博士后基金(LBH-Z11145)资助项目。
通讯作者: 安群涛 男,1984年生,副教授,硕士生导师,研究方向电机控制以及新能源发电技术。E-mail:anquntao@163.com     E-mail: tianbing_hit@163.com
作者简介: 田 兵 男,1989年生,博士研究生,研究方向为风力发电及电机控制。E-mail:tianbing_hit@163.com
引用本文:   
田兵,安群涛,孙东阳,孙力,赵克. 基于磁饱和效应的表贴式永磁同步电机初始位置检测方法[J]. 电工技术学报, 2016, 31(1): 155-164. Tian Bing,An Quntao,Sun Dongyang,Sun Li,Zhao Ke. Initial Position Estimation for Surface Permanent Magnet Synchronous Motors Based on Magnetic Saturation Effect. Transactions of China Electrotechnical Society, 2016, 31(1): 155-164.
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https://dgjsxb.ces-transaction.com/CN/Y2016/V31/I1/155