关键词: 模糊控制, 滑模控制, 行波超声波电动机, 控制方案

Abstract:

An adaptive fuzzy sliding mode control scheme for traveling-wave ultrasonic motor was proposed,it combined a fuzzy logic with the sliding mode control.An equivalent controller was obtained by the fuzzy control strategy. In the sliding mode rule,an online adaptive parameters adjustment algorithm was designed by using the boundary layer method. The controller could avoid the jitter of the system and obtain accurate trajectory tracking.Simulation results have shown that the presented adaptive of fuzzy sliding mode controller performs well in the presence of unknown disturbances.

Key words: fuzzy control, sliding mode control (SMC), traveling-wave ultrasonic motor (TUSM), control scheme