摘  要：针对超声波电机的时变非线性，给出了基于模糊逻辑的PID控制参数在线自适应校正方法。模糊规则设计中充分考虑了超声波电机转速控制的特殊性。采用驱动电压幅值作为控制量，实现了该控制方法。实验表明，控制性能优于PID控制器。
关键词：超声波电机；转速控制；模糊自适应；PID

Abstract: Accordance with ultrasonic motor’s time-variable nonlinearity,a online adaptive correction based on fuzzy logic was presented.The special nature of ultrasonic motor’s speed control were fully taken into account in designing fuzzy rules.The amplitude of driving voltage was used as the control parameter to realize the control method.The experiments indicate that the control characteristics are much better than that of PID controller.
Key words: ultrasonic motor; speed control; fuzzy adaptive; PID