6/4极无轴承开关磁阻电机悬浮控制原理与实现  

Levitation principle and implementation of 6/4 bearingless switched reluctance motor

作　　者：缪伟 曹鑫[1] 刘晨昊 邓智泉[1] MIAO Wei;CAO Xin;LIU Chenhao;DENG Zhiquan(College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China;Hangzhou HIKROBOT Technology Co..LTD.,Hangzhou 310052,China)

机构地区：[1]南京航空航天大学自动化学院,南京211106 [2]杭州海康机器人技术有限公司,杭州310052

出　　处：《航空学报》2022年第7期347-358,共12页Acta Aeronautica et Astronautica Sinica

基　　金：国家自然科学基金(51877107,51477074,51577087)。

摘　　要：针对12/8极无轴承开关磁阻电机(BSRM)换相频率高、定子绕组多、所需功率器件多的缺点,研究了换相频率和绕组数目均减少一半的6/4极BSRM。为确保6/4极BSRM的稳定悬浮,提出一种基于绕组电流双相导通的转矩和径向悬浮力协调控制方法。分析了悬浮控制机理,提出了考虑双相耦合的悬浮力分配策略。通过MATLAB/Simulink建模仿真和样机实验,实现了电机在转速闭环控制时的径向稳定悬浮,验证了理论分析的正确性和控制方法的可行性。Due to the disadvantages of conventional 12/8 Bearingless Switched Reluctance Motor(BSRM), such as high frequency of commutation, and more windings and power devices required, the 6/4 BSRM is studied in this paper. Based on the analysis of levitation principle, it is necessary to energize two phases at the same time to ensure rotor levitation in the 6/4 BSRM. Accordingly, proper distribution of levitation forces is realized considering the two-phase coupling. A coordinated control method is proposed to regulate the torque and radial levitation forces simultaneously by dividing winding currents into torque and levitation components. The proposed method is implemented by simulation results in MATLAB/Simulink, and the demonstrated performance is also verified by experimental results.

关 键 词：6/4极无轴承开关磁阻电机 双相导通 转矩 径向悬浮力 协调控制 

分 类 号：V242.44[航空宇航科学与技术—飞行器设计] TM352[电气工程—电机]