The design of quasi-sliding mode control for a permanent magnet synchronous motor with unmatched uncertainties

Authors:
Cheng-Fang Huang;Teh-Lu Liao;Chih-Yung Chen;Jun-Juh Yan
Affiliations:
Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan;Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan;Department of Computer and Communication, Shu-Te University, Kaohsiung 824, Taiwan;Department of Computer and Communication, Shu-Te University, Kaohsiung 824, Taiwan
Venue:
Computers & Mathematics with Applications
Year:
2012

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Abstract

In this study, the concept of a quasi-sliding mode control (QSMC) is introduced for the robust control of a permanent magnet synchronous motor (PMSM) system subjected to unmatched uncertainties, and even with input nonlinearity. On the basis of the new concept of QSMC, continuous control is obtained, to avoid the chattering phenomenon. As expected, the system state can be stabilized and driven into a predictable neighborhood of zero. Also, this approach only uses a single controller to achieve chaos control, which reduces the cost and complexity of implementation. The results of numerical simulations demonstrate the validity of the proposed QSMC design method.