混合励磁磁通切换永磁电机初始位置检测方法比较  

Comparison of Initial Position Detection for Hybrid Excited Switching Flux Permanent Magnet Machine

作　　者：牛大强 刘旭 曹阳 NIU Daqiang;LIU Xu;CAO Yang(State Key Laboratory of Reliability and Intelligence of Electrical Equipment(School of Electrical Engineering,Hebei University of Technology)Tianjin 300130,China;Key Laboratory of Electromagnetic Field and Electrical Apparatus Reliability of Hebei Province(School of Electrical Engineering,Hebei University of Technology,Tianjin 300130,China)

机构地区：[1]省部共建电工装备可靠性与智能化国家重点实验室(河北工业大学电气工程学院),天津300130 [2]河北省电磁场与电器可靠性重点实验室(河北工业大学电气工程学院),天津300130

出　　处：《微电机》2020年第7期37-43,共7页Micromotors

基　　金：新型定子直流励磁及混合励磁双凸极电机工作机理与性能研究(51507045)。

摘　　要：为实现混合励磁磁通切换永磁电机转子初始位置检测,本文在电机d轴、q轴分别注入高频电压信号来估计转子位置。在电机d轴注入高频电压信号时,通过采集q轴电流来获得转子初始位置;在q轴注入高频电压信号时,通过采集励磁绕组电流来获得转子初始位置。通过比较两种初始位置检测方法,基于d轴高频电压信号注入的初始位置检测方法,无法直接判断磁极极性,需要额外的方法判断磁极极性;而基于q轴高频电压信号注入的初始位置检测方法,利用电机励磁绕组和电枢绕组的互感识别转子初始位置,无需额外的磁极极性判断可直接估计出转子位置。最后,在一台12/10混合励磁磁通切换永磁电机的测试平台对两种初始位置检测方法进行了验证。In order to detect the initial rotor position in the hybrid excited switching flux permanent magnet machine,two methods i.e.injecting high frequency signal into d-or q-axis,were implemented in this paper.When the high-frequency signal was injected into d-axis,the current signal in q-axis was measured to obtain the rotor position,while the high frequency signal was injected into q-axis,the current signal in the field winding was measured.According to the comparison of these two methods for the initial rotor position,it shows that if the high frequency signal was injected into d-axis,it will not be able to directly determine the polarity of magnetic pole,so additional methods were needed to determine the polarity.However,when the high frequency signal was injected into q-axis,the mutual inductance between the field winding and armature winding was used to identify the initial position of the rotor,and the rotor position can be estimated directly without additional polarity judgment.Finally,the tests on a prototype 12/10 hybrid excited switching flux permanent magnet machine were presented for the verification.

关 键 词：混合励磁磁通切换永磁电机 初始位置检测 高频电压信号注入 磁极极性识别 

分 类 号：TM351[电气工程—电机] TP272[自动化与计算机技术—检测技术与自动化装置]