FUZZY GLOBAL SLIDING MODE CONTROL BASED ON GENETIC ALGORITHM AND ITS APPLICATION FOR FLIGHT SIMULATOR SERVO SYSTEM  

作　　者：LIU Jinkun HE Yuzhu 

机构地区：[1]School of Automation Science ＆ Electrical Engineering, Beihang University, Beijing 100083, China [2]Department of System Engineering of Engineering Technology, Beihang University, Beijing 100083, China

出　　处：《Chinese Journal of Mechanical Engineering》2007年第3期13-17,共5页中国机械工程学报（英文版）

基　　金：This project is supported by Aeronautics Foundation of China (No. 00E51022)

摘　　要：To alleviate the chattering problem, a new type of fuzzy global sliding mode controller （FGSMC） is presented. In this controller, the switching gain is estimated by fuzzy logic system based on the reachable conditions of sliding mode controller（SMC）, and genetic algorithm （GA） is used to optimize scaling factor of the switching gain, thus the switch chattering of SMC can be alleviated. Moreover, global sliding mode is realized by designing an exponential dynamic sliding surface. Simulation and real-time application for flight simulator servo system with Lugre friction are given to indicate that the proposed controller can guarantee high robust performance all the time and can alleviate chattering phenomenon effectively.To alleviate the chattering problem, a new type of fuzzy global sliding mode controller （FGSMC） is presented. In this controller, the switching gain is estimated by fuzzy logic system based on the reachable conditions of sliding mode controller（SMC）, and genetic algorithm （GA） is used to optimize scaling factor of the switching gain, thus the switch chattering of SMC can be alleviated. Moreover, global sliding mode is realized by designing an exponential dynamic sliding surface. Simulation and real-time application for flight simulator servo system with Lugre friction are given to indicate that the proposed controller can guarantee high robust performance all the time and can alleviate chattering phenomenon effectively.

关 键 词：Sliding mode control Chattering free Fuzzy control Genetic algorithm Flight simulator 

分 类 号：TG7[金属学及工艺—刀具与模具]