Geodesic
Disturbance observer based integral terminal sliding mode control for permanent magnet synchronous motor system
Kybernetika, Tome 55 (2019) no. 3, pp. 586-603

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This paper presents speed regulation issue of Permanent Magnet Synchronous Motor (PMSM) using a composite integral terminal sliding mode control scheme via a disturbance compensation technique. The PMSM $q$-axis and $d$-axis subsystems are firstly transformed into two linear subsystems by using feedback linearization technique, then, integral terminal sliding mode controller and finite-time controller are designed respectively. The proof of finite time stability are given for the PMSM closed-loop system. Compared with the corresponding asymptotical stability control method, the proposed controller can make the system output track the desired speed reference signal in finite time and obtain a better dynamic response and anti-disturbance performance. Meanwhile, considering the large chattering phenomenon caused by high switching gains, a composite integral terminal sliding mode control method based on disturbance observer is proposed to reduce chattering phenomenon. Through disturbance estimation based feed-forward compensation, the composite integral terminal sliding mode controller may take a smaller value for the switching gain without sacrificing disturbance rejection performance. Experimental results are provided to show the superiority of proposed control method.
DOI : 10.14736/kyb-2019-3-0586
Classification : 93C73, 93C95
Keywords: PMSM; integral terminal sliding mode control; finite-time control; feedback linearization; disturbance observer 
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     title = {Disturbance observer based integral terminal sliding mode control for permanent magnet synchronous motor system},
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Wang, Junxiao; Wang, Fengxiang; Wang, Xianbo; Yu, Li. Disturbance observer based integral terminal sliding mode control for permanent magnet synchronous motor system. Kybernetika, Tome 55 (2019) no. 3, pp. 586-603. doi: 10.14736/kyb-2019-3-0586

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