Abstract

Fuzzy sliding mode control with robust eigenvalue assignment technique is proposed for electrical servo system. A smooth function is used for the switching device to alleviate the chattering problem caused by sliding mode control, and an auxiliary compensator is employed to find the sliding condition for an ideal system and specify the dynamic characteristics of the sliding variable directly. It makes the system can not only achieve very good tracking performance, but also obtain good robustness. Simulation studies with a permanent magnet servomotor further illustrate the feasibility and effectiveness of the proposed scheme.

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