实验科学与技术2023，Vol.21Issue(6)：1-7,7.DOI:10.12179/1672-4550.20220482
基于dSPACE的压电定位器迟滞非线性实验平台设计
Design of Hysteretic Nonlinear Experimental Platform for Piezo-positioner Based on dSPACE
摘要
Abstract
In order to strengthen students'understanding of nonlinear problems,a set of hysteresis nonlinear hardware-in-the-loop simulation platform for piezoelectric ceramic nanopositioners based on dSPACE is designed.Firstly,the composition of the experimental platform is introduced in detail.Secondly,the hysteresis nonlinear data of the piezo-positioner is collected based on the experimental platform,the PI(Prandtl-Ishlinskii)model is obtained by the general least squares identification method,and the PI inverse model is obtained by the analytical method.Finally,the PI inverse model is added to the feedforward path to offset the hysteresis nonlinearity,thereby transforming the nonlinear system into a pseudo-linear system.During the experiment,students can not only deepen their understanding of the nonlinear characteristics and inverse system method,but also effectively solve the hysteretic nonlinear problem of a kind of intelligent materials through the parameter identification method and inverse compensation method,improve students'ability to combine theoretical knowledge with engineering practice,and cultivate automation students'ability to solve complex engineering problems.关键词
dSPACE/压电定位器/最小二乘法/Prandtl-Ishlinskii模型Key words
dSPACE/piezo-positioner/least square method/Prandtl-Ishlinskii model分类
信息技术与安全科学引用本文复制引用
张桂林,刘浩天,商丰盈,张婧..基于dSPACE的压电定位器迟滞非线性实验平台设计[J].实验科学与技术,2023,21(6):1-7,7.基金项目
国家新工科研究与实践项目(E-GXHPY20200418) （E-GXHPY20200418）
山东省本科教学改革研究项目(P2020001,Z2020021) （P2020001,Z2020021）
山东科技大学青年教师教学拔尖人才培养计划(BJRC20190504) （BJRC20190504）
山东科技大学教育教学研究"群星计划"项目(QX2020Z11). （QX2020Z11）
