摘要
开关磁阻电机在磁路饱和情况下,其导通相电感会随导通相电流的变化而变化,从而影响转子位置估算精度,提出一种电机转子位置估算方法。首先建立了相电感函数关系式;然后分析了相电流与相电感极值定位点位置角之间的关系;最后阐述了由两相邻采样定位点来估算出相应的转子位置角度的实现过程。以三相6/4结构电机进行了相关仿真与实验,结果表明上述方法的可行性。
The conduction phase inductance of switched reluctance motor will change with the change of the conduction phase current under the case of magnetic circuit saturation, resulting in a low rotor position estimation accuracy. Aiming at this problem, a position sensorless control method of switched reluctance motor considering magnetic circuit saturation is proposed. Firstly, the relationship formula of the phase inductance function is established, and then the relationship between the phase current and the position angle of the extreme positioning point of the phase inductance is analyzed. Finally, the realization process of estimating the corresponding rotor position angle from the two adjacent extreme positioning points is described. Finally, the related simulation and experiment were carried out with a three-phase 6/4 structure motor. The results show the feasibility of the above method.
作者
匡斯建
张小平
王易华
刘苹
张光辉
Kuang Sijian;Zhang Xiaoping;Wang Yihua;Liu Ping;Zhang Guanghui(National and Local Joint Engineering Laboratory of Marine Mineral Resources Exploration Equipment and Safety Technology Hunan University of Science and Technology,Xiangtan 411201,China;College of Information and Electrical Engineering,Hunan University of Science and Technology,Xiangtan 411201,China)
出处
《电子测量与仪器学报》
CSCD
北大核心
2021年第7期202-209,共8页
Journal of Electronic Measurement and Instrumentation
基金
湖南省教育厅科研项目(19C0791)资助。
关键词
开关磁阻电机
无位置传感器
电感采样定位点
磁路饱和
位置估算
switched reluctance motor
sensorless
inductance extreme value
magnetic circuit saturation
position estimation