引用本文:邬玲伟,雷必成,陈光,等.以幂次吸引的离散多周期重复控制[J].控制与决策,2020,35(9):2299-2304
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  【EndNote】   【RefMan】   【BibTex】
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览次   下载 本文二维码信息
码上扫一扫!
分享到: 微信 更多
以幂次吸引的离散多周期重复控制
邬玲伟,雷必成, 陈光, 苏娜
(台州学院电子与信息工程学院,浙江台州317000)
摘要:
针对一类多周期干扰的抑制问题,提出一种基于幂次吸引律的离散多周期重复控制方法.多周期干扰由多个周期已知的周期干扰叠加而成.根据周期干扰的对称特性,构造出具有干扰抑制项的幂次吸引律,据此设计出子重复控制器,并以并联方式组合成多周期重复控制器,在消除多周期干扰的同时,有效地抑制慢时变非周期干扰带来的影响,改善控制品质;推导出幂次绝对吸引层和稳态误差带的具体表达式,用于刻画系统跟踪性能.仿真结果验证了所提控制方法的有效性.
关键词:  离散时间系统  幂次吸引律  重复控制  多周期干扰  趋近律  无抖振
DOI:10.13195/j.kzyjc.2018.1720
分类号:TP273
基金项目:中国博士后科学基金项目(2018M632204);浙江省自然科学青年基金项目(LQ18F030002,LQ15E070001).
Discrete multi-periodic repetitive control with power-rate attracting
WU Ling-wei,LEI Bi-cheng,CHEN Guang,SU Na
(College of Electronics and Information Engineering,Taizhou University,Taizhou317000,China)
Abstract:
This paper presents a power-rate attracting law based design method of discrete-time multi-periodic repetitive controllers for the problem of general multi-periodic disturbances rejection. The multi-periodic disturbance is a superposition of multiple periodic disturbances with known periods. According to the symmetry of periodic disturbance, a measure of disturbance rejection is embedded in the power-rate attracting law, thus developing the sub-repetitive controller, and the parallel-mode multi-periodic repetitive controller is designed. The multi-periodic disturbance is rejected completely, and slowtime-varying aperiodic disturbance is suppressed effectively. In order to characterize the tracking performance, we derive the expressions for the range of the power absolute attractive layer and the steady-state error band. Simulation results show the effectiveness of the presented control method.
Key words:  discrete-time systems  power-rate attracting law  repetitive control  multi-periodic disturbances  reaching law  chattering-free

用微信扫一扫

用微信扫一扫