光学精密工程2013，Vol.21Issue(1)：124-130,7.DOI:10.3788/OPE.20132101.0124
基于Prandtl-Ishlinskii模型的超磁致伸缩驱动器实时磁滞补偿控制
Real-time compensation control of hysteresis based on Prandtl-Ishlinskii operator for GMA
摘要
Abstract
Giant Magnetostrictive Actuator(GMA) has complex hysteretic nonlinearities, which can degrade system performance and cause system instability. To solve the problem, this paper establishes a model to accurately describe hysteretic phenomenon and propose a proper method to improve real-time control accuracy. Firstly, Prandtl-Ishlinskii(PI) operator is proposed in this paper to model the hysteresis of GMA and Least Mean Square(LMS) algorithm is used identify the parameter of this model, by which the prediction error reaches up to 0. 037 9 μm. Then, an inverse model is established based on the PI model for real-time compensation control of the hysteresis, and the inverse control error reaches up to 0. 309 μm. The experimental results demonstrate that PI operator can accurately characterize the GMA hysteresis, and the model has advantages of simple calculation and strong hysteretic tracking ability. The real-time compensation control of hysteresis can effectively reduce hyster-etic errors and improve real-time control accuracy.It is aeffective way to achieve precision driving control of GMAs. p关键词
超磁致伸缩驱动器/磁滞/Prandtl-Ishlinskii模型/逆模型/实时补偿Key words
giant magnetostrictive actuator/ hysteresis/ Prandtl-Ishlinskii(PI) operator/ inverse mod-el/ real-time compensation分类
信息技术与安全科学引用本文复制引用
杨斌堂,赵寅,彭志科,孟光..基于Prandtl-Ishlinskii模型的超磁致伸缩驱动器实时磁滞补偿控制[J].光学精密工程,2013,21(1):124-130,7.基金项目
国家自然科学基金资助项目(No.11172169,11125209) （No.11172169,11125209）
机械系统与振动国家重点实验室重点基金资助项目(No.MSVZD201102) （No.MSVZD201102）
上海航天基金资助项目(No.HTJ10-08) （No.HTJ10-08）
