摘要
无轴承无刷直流电机集成了直流和交流电机的优点,具有重要的实际应用价值,针对传统悬浮力控制方法存在工作复杂、逆变器通断频繁等缺陷,为了提高磁悬浮力的控制效果,提出了基于有限元分析的无轴承无刷直流电机悬浮力控制策略。首先对无轴承无刷直流电机的结构以及悬浮力产生的原理进行了分析,然后采用有限元分析法对电机转矩和悬浮力进行计算,从而实现无轴承无刷直流电机控制,最后采用MATLAB/Simulink工具对其性能进行测试与验证。结果表明,本文策略可以提高转子悬浮的稳定性,能够保证无轴承无刷直流电机的正常运行。
Bearing, less brushless DC motor has the advantages of DC and AC motor, so it has important application suspension force for bearingless brushless DC motor is presented based on the finite element analysis. Firstly, structure of bearingless brushless DC motor and the principle of suspension force are analyzed, and secondly, finite element analysis method is used to calculate motor torque and suspension force to control bearingless brushless DC motor, finally, and the performance is tested and verified in MATLAB/Simulink. The results show that the proposed strategy can improve the stability of rotor suspension,and can ensure normal operation of bearingless brushless DC motor.
出处
《电子器件》
CAS
北大核心
2017年第4期942-945,共4页
Chinese Journal of Electron Devices
基金
国家自然科学基金项目(61172029)
关键词
无轴承无刷
有限元分析
直流电机
逆变器通断
控制策略
bearingless brushless
finite element analysis
DC motor, magnetic bearing
inverter on-off
control strategy
