高频脉振信号注入永磁同步电机无滤波器初始位置辨识方法  

Initial Position Identification of PMSM with Filterless High Frequency Pulse Signal Injection Method

作　　者：于安博 刘利 阚志忠[1] 张纯江[1] Yu Anbo;Liu Li;Kan Zhizhong;Zhang Chunjiang(Key Laboratory of Power Electronics for Energy Conservation and Drive Control of Hebei Province,Yanshan University,Qinhuangdao 066004,China;Shougang Zhixin Qian’an Electromagnetic Material Co.Ltd,Tangshan 064400,China)

机构地区：[1]燕山大学电力电子节能与传动控制河北省重点实验室,秦皇岛066004 [2]首钢智新迁安电磁材料有限公司,唐山064400

出　　处：《电工技术学报》2021年第4期801-809,共9页Transactions of China Electrotechnical Society

基　　金：河北省自然科学基金资助项目(E2018203152)。

摘　　要：针对传统高频信号注入永磁同步电机转子初始位置辨识方法中滤波环节产生的相移影响最终辨识精度的问题,提出一种无滤波器高频脉振信号转子初始位置辨识方法。该方法较传统利用低通滤波器分离高频信号分量方法,改进为利用估计直轴和估计交轴响应电流信号进行解调,去除高频分量,对解调后的信号进行锁相,辨识出转子初始位置。提出利用磁路饱和效应对转子磁极极性进行辨识的方法,提高磁极极性辨识准确性。最后在永磁同步电机矢量控制平台验证了该方法的可行性。A method is proposed to identify the rotor initial angle using high-frequency pulse signal injection into a permanent magnet synchronous motor(PMSM).This method,briefly called filterless high frequency pulse signal injection,is an improvement on the traditional identification of the rotor initial angle.Firstly,the function of rotor initial angle error is calculated from stator current high-frequency response instead of using a low-pass filter,then,the initial rotor angle is obtained through a phase-locked loop.The method of identifying the rotor polarity is also modified using the saturation effect of the magnetic circuit,which improves the polarity identification of the rotor magnet.Finally,the proposed scheme has been verified by experiments on an 16kW interior permanent magnet synchronous motor platform.

关 键 词：永磁同步电机 初始位置辨识 高频脉振信号 无滤波器 

分 类 号：TM351[电气工程—电机]