基于Matlab与T-S模糊系统的压电驱动器磁滞特性建模及实验验证  

Modeling and Experimental Validation of Piezoelectric Actuators' Hysteresis Based on Matlab and T - S Fuzzy System

作　　者：李朋志[1] 朱利民[1] 

机构地区：[1]上海交通大学机械与动力工程学院机械系统与振动国家重点实验室,上海200240

出　　处：《机电一体化》2011年第6期43-47,共5页Mechatronics

基　　金：国家973重点基础研究项目(2007CB714005);上海市国际合作研究重点项目(09520701700)

摘　　要：针对压电驱动器的磁滞特性,提出了一种基于MISO模糊系统的磁滞建模方法,将一维输入空间中的多值函数映射为多维输入空间的单值函数,有效地解决了磁滞曲线多值映射的问题。基于Matlab7.1软件,该方法根据磁滞系统的输入输出数据,在最大隶属度、最近邻居和超半径概念的基础上,基于1阶T-S型模糊推理对模糊系统进行训练和参数优化,从而精确地建立了压电驱动器的磁滞特性模型。An approach of modeling hysteresis based on MISO fuzzy system is presented with respect to the hysteresis of piezoelectric actuators. The proposed model can sufficiently solve the problem of multi-value hysteresis via an expanded input space. On the basis of concepts such as maximum membership, nearest neighbor and super radius, through training fuzzy system and parameter optimization with one order T - S fuzzy implication, the model of hysteresis can be precisely established using input and output data with the software Matlab7. 1.

关 键 词：磁滞 模糊系统 参数优化 

分 类 号：TH703[机械工程—仪器科学与技术]