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行波超声波电机Lyapunov模型参考自适应转速控制

, PP. 44-50

Keywords: 超声波电机,转速控制,模型参考自适应,李雅普诺夫

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Abstract:

超声波电机是一类具有明显时变非线性的被控对象,为提高其转速控制性能,应采用适当的自适应控制策略。本文以超声波电机驱动电压幅值为控制变量,根据李雅普诺夫稳定性理论,采用输入-输出变量设计了超声波电机模型参考自适应转速控制器,并给出了自适应速率在线调节、微分前馈等方法以改善起始阶段的转速控制性能。实验表明了所提控制方法的有效性。

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