| 具有迟滞和蠕变特性压电作动器的模糊自适应逆控制方法 |
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| 引用本文： | 屈文忠,姚振汉,张振家.具有迟滞和蠕变特性压电作动器的模糊自适应逆控制方法[J].机械科学与技术(西安),2005,24(10):1230-1232. |
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| 作者姓名： | 屈文忠 姚振汉 张振家 |
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| 作者单位： | [1]武汉大学工程力学系,武汉430072 [2]清华大学工程力学系,北京100084 [3]北京7208信箱,北京100074 |
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| 摘 要： | 针对具有迟滞和蠕变特性的压电作动器非线性模型,提出了一种前馈控制和反馈控制相结合的自适应模糊逆控制方案。在前馈控制器中压电作动器的迟滞和蠕变非线性特性的逆模型由自适应模糊逻辑系统近似;在反馈控制器中比例控制器用来调节压电作动器的输出误差。该方法可以实时补偿压电作动器的迟滞和蠕变特性,减少作动器跟踪误差。仿真计算结果表明了该方法的有效性。
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| 关 键 词： | 压电作动器 迟滞 蠕变 自适应模糊逆控制 |
| 文章编号： | 1003-8728（2005）10-1230-03 |
| 收稿时间： | 2004-07-01 |
| 修稿时间： | 2004-07-01 |
Adaptive Fuzzy Inverse Control of Piezoelectric Actuator with Hysteresis and Creep |
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| QU Wen-zhong, YAO Zhen-han , ZHANG Zhen-jia.Adaptive Fuzzy Inverse Control of Piezoelectric Actuator with Hysteresis and Creep[J].Mechanical Science and Technology,2005,24(10):1230-1232. |
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| Authors: | QU Wen-zhong YAO Zhen-han ZHANG Zhen-jia |
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| Affiliation: | 1 Department of Mechanical Engineering, Wuhan University, Wuhan 430072 ; 2 Department of Mechanical Engineering, Tsinghua University, Beijing 100084; 3 Beijlng 7208 Mail Box, Beijing 100074 |
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| Abstract: | In this paper,a control method combining the feedforward and feedback controllers is proposed to compensate the hysteretic and creep characteristics of piezoelectric actuators by an adaptive fuzzy inverse control.In the feedforward controller design,fuzzy logic system architecture is treated as the inverse function of piezoelectric actuators′ nonlinear model.In the feedback controller design,a proportional controller is used to regulate the output error of piezoelectric actuators.Simulation results show that the proposed compensation method is an efficient way of improving the tracking performance of piezoelectric actuators. |
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| Keywords: | Piezoelectric actuator Hysteresis Creep Adaptive fuzzy inverse control |
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