摘要
利用幂次函数设计了一种预测滑模控制算法.该算法结合了反馈校正和滚动优化技术,利用全程滑模面设计了切换函数的预测模型,并且利用幂次函数趋近律设计了参考轨迹.理论分析和数值仿真均表明,该算法不需要知道系统的不确定性上界,对于不满足匹配条件的不确定性系统也具有强鲁棒性,且可以使切换函数无抖振地收敛于与外于扰相关的某一稳态值.
An algorithm of predictive sliding mode control based on power-function is designed.This algorithm combines feedback correction with rolling optimization techniques.It not only utilizes global sliding mode surface to design predictive mode of switching function,but also utilizes power-function reaching-law to design referenced track.Theory analysis and numerical simulation both state that this algorithm need not require uncertain supremum of the system and also can retain powerful robustness to uncertain systems dissatisfying matching condition.At the same time,this algorithm can make switch function chattering-freely converge to a certain value which is related with external disturbance.
出处
《信息与控制》
CSCD
北大核心
2011年第1期39-43,60,共6页
Information and Control
基金
中国博士后科学基金资助项目(20070421137)
关键词
幂次函数
预测控制
抖振
离散滑模控制
power-function
predictive control
chattering
discrete-time sliding mode control
