Abstract This paper reports that the performance of permanent magnet synchronous motor (PMSM) degrades due to chaos when its systemic parameters fall into a certain area. To control the undesirable chaos in PMSM, a nonlinear controller, which is simple and easy to be constructed, is presented to achieve finite-time chaos control based on the finite-time stability theory. Computer simulation results show that the proposed controller is very effective. The obtained results may help to maintain the industrial servo driven system's security operation.
Received: 16 September 2008
Revised: 16 October 2008
Accepted manuscript online:
Fund: Project supported by the Hi-Tech
Research and Development Program of China (863) (Grant No
2007AA05Z229), National Natural Science Foundation of China (Grant
Nos 50877028, 60774069 and 10862001) and Science Foundation of
Guangdong Province (Grant No 82510
Cite this article:
Wei Du-Qu(韦笃取) and Zhang Bo(张波) Controlling chaos in permanent magnet synchronous motor based on finite-time stability theory 2009 Chin. Phys. B 18 1399
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