Abstract：Ultrasonic motor is a kind of control object with obvious time-variable nonlinearity. In order to improve its speed control performance, some adaptive control strategies are adopted. In this paper, a model reference adaptive speed controller is designed for ultrasonic motor. The controller takes drive voltage’s amplitude as the control argument, and is designed using input-output variables according to Lyapunov stability theory. Novel method of on-line adaptive-rate regulation and a differential feedforward compensator are also designed to improve the performance of speed control at start time. The experiments indicate the availability of the proposed control strategy.
史敬灼, 张慧敏. 行波超声波电机Lyapunov模型参考自适应转速控制[J]. 电工技术学报, 2011, 26(4): 44-50.
Shi Jingzhuo, Zhang Huimin. Model Reference Adaptive Speed Control of Ultrasonic Motor Based on Lyapunov Theory. Transactions of China Electrotechnical Society, 2011, 26(4): 44-50.
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2011, Vol. 26 
