基于T-S模糊模型的PLZT驱动器的本构建模及伺服驱动控制

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振动与冲击 ›› 2024, Vol. 43 ›› Issue (24) : 117-124.

论文

基于T-S模糊模型的PLZT驱动器的本构建模及伺服驱动控制

贺容波1,2，何浩然1，郑世杰2，程超1

作者信息 +

Constitutive modeling and servo drive control of a PLZT actutor based on a T-S fuzzy model

HE Rongbo1,2，HE Haoran1，ZHENG Shijie2，CHENG Chao1

Author information +

文章历史 +

摘要

针对目前ON-OFF控制策略在PLZT驱动器光致应变位移的闭环伺服控制系统中的缺点，提出了一种基于T-S模糊模型的PLZT驱动器应变位移的动态模型及预测控制方法。首先建立了PLZT驱动器光致应变位移的T-S模糊模型，该模型利用基于减法聚类的模糊C均值聚类算法进行前件辨识，并利用SVD算法进行后件辨识，所建立模型的有效性通过拟合度仿真加以验证。随后在所建立的T-S模糊模型的基础上结合预测控制方法对PLZT驱动器的光致应变位移进行闭环控制，并对该算法进行仿真验证。仿真结果显示，在PLZT驱动器微位移的控制中，本文控制算法减小了基于ON-OFF控制策略下的抖振，且具有更好的控制效果。

Abstract

Aiming at the shortcoming of the current closed-loop servo control system based on ON-OFF control strategy in the light-induced strain displacement of PLZT actuator, a dynamic model and predictive control method of strain displacement of PLZT actuator based on T-S fuzzy model is proposed. Firstly, the T-S fuzzy model of photo-induced strain displacement of PLZT actuator is established. The fuzzy C-means clustering algorithm based on subtractive clustering is used to identify the antecedent and the SVD(singular value decomposition) algorithm is used to identify the consequent. The validity of the established model is verified by fitting degree simulation. Then, based on the established T-S fuzzy model, the closed-loop control of the photo-induced strain displacement of the PLZT actuator is carried out by combining the predictive control method, and the algorithm is verified by simulation. The simulation results show that for the control of PLZT driver micro-displacement, the control algorithm in this paper reduces the buffeting based on the ON-OFF control strategy and has better control effect.

导出引用

贺容波1, 2, 何浩然1, 郑世杰2, 程超1. 基于T-S模糊模型的PLZT驱动器的本构建模及伺服驱动控制[J]. 振动与冲击, 2024, 43(24): 117-124

HE Rongbo1, 2, HE Haoran1, ZHENG Shijie2, CHENG Chao1. Constitutive modeling and servo drive control of a PLZT actutor based on a T-S fuzzy model[J]. Journal of Vibration and Shock, 2024, 43(24): 117-124

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