摘要
针对一类多平衡态非线性系统,考虑系统具有范数有界时变参数不确定性,存在执行器故障时的绝对稳定控制问题.对于Lur’e型多平衡态非线性系统,基于将Leonov的频域判据转化为H∞次优问题,考虑系统具有范数有界时变参数不确定性,且系统的执行器出现故障时,采用动态输出反馈控制,给出系统鲁棒容错控制器存在性问题的判据,进一步给出了基于LM I(线性矩阵不等式)的鲁棒控制器的设计方法.仿真表明了该方法的有效性.
For a class of a multi equilibrium nonlinear system with norm-bounded time - varying parameter uncertainty, designing absolute stability control dynamic output feedback controller when actuator fault happens is suggested in this paper. Based on the transformation of the Leonov frequency theorem to H∞ problem, considering norm-bounded time-varying parameter uncertainty and the actuator fault, the robust controller is obtained. Based on LMI （ linear matrix inequality）, the design of the controller is derived. The simulation results demonstrate the validity of this method.
出处
《湖南工程学院学报（自然科学版）》
2007年第1期14-18,共5页
Journal of Hunan Institute of Engineering(Natural Science Edition)
