摘要
建立了基于永磁同步电动机(PMSM)的传统滑模观测器(SMO)的数学模型,分析了其优缺点,并对传统SMO进行了改进。改进型SMO可有效抑制传统SMO中的抖动问题,降低系统干扰对转速和转子位置角估计值的影响,增强系统的鲁棒性,提高系统的控制性能。仿真和实验结果验证了基于改进型SMO的PMSM无位置传感器控制方法的可行性和有效性。
The mathematical model of traditional sliding mode observer（SMO） based on permanent magnet synchronous motor（PMSM） is established and based on analysis of its advantages and disadvantages, the traditional SMO is im- proved.The modified SMO can restrain the jitter problem in the traditional SMO, reduce the interference effect on the estimate of speed and rotor position angle, enhance the robustness of the system and improve the control performance. The feasibility and effectiveness of the PMSM sensorless control technology based on the modified SMO are verified by the simulation and experimental results.
出处
《电力电子技术》
CSCD
北大核心
2014年第9期20-22,共3页
Power Electronics
关键词
永磁同步电动机
传感器
观测器
permanent magnet synchronous motor
sensorless
observer
