摘要
针对永磁同步电动机单一无位置传感器控制方法难以满足全转速范围运行要求、且起动阶段特殊等缺点,该文提出一种基于分段PI调节器的模型参考自适应控制（model reference adaptive system,MRAS）方法。利用该方法,电机可以在全转速范围条件下得到较好的控制效果。此外,文中利用PWM驱动信号占空比与直流母线电压重构定子三相反电势,可以使电机在任意角度闭环起动并能稳定运行在低转速下。最后,以带有风机负载的1.5k W内置式永磁同步电动机为研究对象进行Matlab仿真和实验,实现了基于此方法的全转速范围控制,证明了该方法的有效性。
It is difficult to realize full speed range operation of a permanent magnet synchronous motor（PMSM） with a single traditional position sensorless control method,whilst special processing is usually required for the start-up.To overcome this drawback,a phased PI regulator-based model reference adaptive system（MRAS） is proposed in this paper,with which the PMSM can be operated well over the full speed range.In addition,by re-constructing and the 3-phase back EMF with PWM signal and the measured DC-link voltage,the PMSM can start up with position closed-loop control at any initial rotor position,and can also run steadily at low speed.Simulation 1.5 k W interior permanent magnet synchronous motor（IPMSM） driving a fan are carried out to validate the proposed sensorless control over the full speed range.
出处
《中国电机工程学报》
EI
CSCD
北大核心
2018年第4期1203-1211,共9页
Proceedings of the CSEE
基金
国家自然科学基金项目(51690182)
国家重点基础研究发展计划项目(973项目)(2013CB035604)~~
关键词
永磁同步电动机
模型参考自适应控制
无位置传感器控制
分段PI调节器
闭环起动
全转速范围运行
permanent magnet synchronous motor（PMSM）
model reference adaptive system （MRAS）
positionsensorless control
phased PI regulator
close-loop start-up
fullspeed range operation ~.
