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Comparative study of PI, sliding mode and fuzzy logic controller for rotor field oriented controlled induction motor drives

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2 Author(s)
Zhang Yongchang ; Dept. of Electr. Eng., Tsinghua Univ., Beijing ; Zhao Zhengming

In this paper, conventional PI controller, sliding mode controller (SMC) and fuzzy logic controller (FLC) for rotor field oriented controlled (RFOC) induction motor drives are studied comparatively. PI is simple but sensitive to parameter variations. SMC provides strong robustness to parameters variations, disturbance rejection and system order reduction. FLC does not need exact system mathematical model and can handle intricate nonlinearity, but its implementation is more complicated than that of PI and SMC. Comparative study of PI, SMC and FLC are carried out from four aspects: dynamic performance and steady-state accuracy, parameter robustness, and complexity of implementation. The experimental results show that both SMC and FLC provide more excellent performance than conventional PI, while SMC is easier to implement than FLC.

Published in:

Electrical Machines and Systems, 2008. ICEMS 2008. International Conference on

Date of Conference:

17-20 Oct. 2008