Speed Control of Permanent Magnet Synchronous Motor With Uncertain Parameters and Unknown Disturbance

被引:22
作者
Alfehaid, Abdullah A. [1 ]
Strangas, Elias G. [1 ]
Khalil, Hassan K. [1 ]
机构
[1] Michigan State Univ, Dept Elect & Comp Engn, E Lansing, MI 48824 USA
基金
美国国家科学基金会;
关键词
Disturbance rejection; extended high-gain observer; feedback linearization; permanent magnet synchronous motor (PMSM); singular perturbation; speed control; REJECTION;
D O I
10.1109/TCST.2020.3026569
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Control of the speed as well as shaping the speed transient response of a surface-mounted permanent magnet synchronous motor (PMSM) is achieved using the method of feedback linearization and extended high-gain observer. To recover the performance of feedback linearization, an extended high-gain observer is utilized to estimate both the speed of the motor and the disturbance present in the system. The observer is designed based on a reduced model of the PMSM, which is realized through the application of singular perturbation theory. The motor parameters are assumed uncertain and we only assume knowledge of their nominal values. The external load torque is also assumed to be unknown and time-varying, but bounded. Stability analysis of the output feedback system is given. Experimental results confirm the performance and robustness of the proposed controller and compare it to the cascaded proportional integral (PI) speed controller.
引用
收藏
页码:2639 / 2646
页数:8
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