控制方向未知的高次不确定非线性系统低复杂度预定性能控制
Low-complexity prescribed performance control of high-order uncertain nonlinear system with unknown control directions
摘要点击 102  全文点击 115  投稿时间:2018-04-18  修订日期:2019-01-22
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DOI编号  10.7641/CTA.2019.80278
  2019,36(10):1622-1630
中文关键词  非线性系统, 控制系数, 低复杂度, 预定性能, 执行器故障
英文关键词  nonlinear system, control coefficients, low-complexity, prescribed performance, actuator falures
基金项目  国家自然科学基金,中国博士后科学基金
学科分类代码  
作者单位E-mail
丁超 空军工程大学 dingchao529@163.com 
石超 空军工程大学  
董新民 空军工程大学 dongxinmin@139.com 
陈勇 空军工程大学  
刘棕成 空军工程大学  
中文摘要
      本文研究了控制方向未知的高次不确定非线性系统预定性能控制问题. 基于有理分式函数类型的误差转换, 通过设计具有切换形式的控制器, 提出了一种低复杂度的控制方法, 并利用Lyapunov理论和反证法证明了闭环系统稳定性. 与现有其他方法相比, 该方法具有适用范围广、跟踪精度高、容错能力强、控制器简单等优点. 仿真结果验证了本文结论.
英文摘要
      This paper investigates the prescribed performance control problem of high-order uncertain nonlinear system with unknown control directions. Based on the error transformations in rational fraction forms, a low-complexity control scheme is proposed by designing a switching controller. The stability of the closed loop system is proved by Lyapunov theorem and contradiction. Compared with the existing methods, the proposed method possesses many advantages such as the wide application range, high tracking precision, strong fault-tolerant ability, and low-complexity controller, etc. Conclusions in this paper are demonstrated by a simulation.