摘要
针对受噪声干扰的含有未知参数的离散系统控制问题,首先利用强跟踪滤波器对未知参数进行估计,接着提出了一种自适应离散趋近律滑模控制方法.深入研究分析了该离散趋近律方法的抖振问题,设计了基于该新型趋近律的滑模控制器.仿真结果表明所设计的控制器能有效降低抖振,改善控制性能.
For the control problem of discrete-time systems with noise disturbance and uncertain parameters, a strong tracking filter is used to estimate uncertain parameters firstly, and then a sliding mode control method based on discrete adaptive reaching law is proposed. The chattering problem is studied and analyzed deeply for the discrete-time reaching law, and a new sliding mode controller based on the new reaching law is designed. Simulation results demonstrate that the designed controller can effectively reduce chattering and improve the control performance.
出处
《信息与控制》
CSCD
北大核心
2009年第2期158-162,共5页
Information and Control
基金
北京市教委科技计划资助项目(KM200910772010)
关键词
滑摸控制
变结构控制
离散系统
趋近律
强跟踪滤波器
sliding mode control
variable structure control
discrete-time system
reaching law
strong tracking filter
