压电陶瓷驱动器迟滞非线性的改进型Bouc-Wen模型建模及试验验证  

Modeling and Experimental Verification of an Improved Bouc-Wen Model for Hysteresis Nonlinearity of Piezoelectric Ceramic Actuators

作　　者：陈星宇 许有熊[1] CHEN Xingyu;XU Youxiong(School of Automation,Nanjing Institute of Technology,Nanjing 211167,China)

机构地区：[1]南京工程学院自动化学院,江苏南京211167

出　　处：《河南科技》2025年第2期48-51,共4页Henan Science and Technology

基　　金：南京工程学院研究生科技创新基金项目(TB202417060)。

摘　　要：【目的】由于压电陶瓷驱动器的迟滞特性,有必要进行迟滞建模,以提高控制精度。【方法】针对压电陶瓷驱动器输入电压与输出位移的动态迟滞特性,结合非对称静态Bouc-Wen迟滞模型,建立了压电陶瓷驱动器动态迟滞模型,并在输出端加入电压的多项式。【结果】根据试验测得压电陶瓷驱动器输入、输出数据,采用粒子群算法辨识得到驱动器的参数化模型,并通过与经典的Bouc-Wen模型进行对比,验证了该模型的有效性。【结论】试验结果表明,与经典的Bouc-Wen模型相比,在输出端加入电压的多项式,相对误差和均方根误差都有所下降,证明了所提出模型的有效性。[Purposes]Due to the hysteresis characteristics of piezoelectric ceramic actuators,hysteresis modeling is required to improve the control accuracy.[Methods]According to the dynamic hysteresis characteristics of the input voltage and output displacement of the piezoelectric ceramic actuators,combined with the asymmetric static Bouc-Wen hysteresis model,the dynamic hysteresis model of the piezoelectric ceramic actuators is established,and the polynomial of the voltage is added to the output termi⁃nal.[Findings]According to the experimental input and output data of the piezoelectric ceramic actuators,the parameterized model of the actuators was identified by particle swarm algorithm,and the effectiveness of the model was verified by comparing it with the classical Bouc-Wen model.[Conclusions]Experimental results show that,compared with the classical Bouc-Wen model,the relative error and root mean square error of the polynomial with voltage added to the output end are reduced,which proves the effectiveness of the proposed model.

关 键 词：压电陶瓷驱动器 迟滞非线性 改进Bouc-Wen模型 粒子群算法 

分 类 号：TQ174.75[化学工程—陶瓷工业]