无刷励磁同步电机无位置传感器起动控制  

Sensorless Control of Brushless Synchronous Machines in the Starting Mode

作　　者：钱东祥[1] 魏佳丹[1] 周波[1] 张坤[1] 唐国芬[1] 

机构地区：[1]南京航空航天大学江苏省新能源发电与电能变换重点实验室,江苏省南京市210016

出　　处：《中国电机工程学报》2015年第2期477-485,共9页Proceedings of the CSEE

基　　金：教育部高等学校博士学科点专项科研基金优先发展领域项目(20123218130002);江苏省高校优秀科技创新团队项目资助~~

摘　　要：针对无刷励磁同步电机应用于飞机变频交流电源起动控制时,需要安装位置传感器带来了系统结构复杂、可靠性降低并且该传感器利用率低等问题,提出一种适用于无刷励磁同步电机的无位置传感器起动控制技术。通过向主电机注入旋转高频电压信号,判定转子位置信息,结合反电势极性判定法对位置角进行校正。起动阶段根据旋转高频电压信号产生的高频电流响应中的位置信息,解析转子位置信号,结合矢量控制策略起动无刷励磁同步电机。仿真和实验结果表明,该方法具有良好的位置估计精度,能够满足无刷励磁同步电机起动控制系统的要求,实现电机顺利平稳起动。Due to the disadvantages of the complex structure, low reliability and low utilization rate for the position sensor of the brushless synchronous machine（BSM） used as starter for the variable frequency AC power system, this paper presented a new sensorless control strategy for the BSM in the starting process. The high frequency rotating voltage signal injection method was used in the main generator of the BSM to detect the initial position of the rotor, and the polarity check by the back-EMF was added for the correction of the initial position of the rotor. In the starting process, the rotor position can be calculated by the response current generated by the high frequency voltage signal, then, it can be used in the vector control strategy for the BSM. The simulation and experiment results verify the positional accuracy of the proposed sensorless control method and the validity of the BSM used for the engine cranking.

关 键 词：无刷励磁同步电机 变频交流电源系统 无位置传感器 旋转高频电压信号 反电势极性判别 

分 类 号：TM341[电气工程—电机]