摘要
针对基于非线性时变扰动的一类参数不确定时变广义系统,研究了当系统存在故障时的容错控制问题,首先对系统中存在的非线性扰动在假定其满足Lipschitz条件的前提下进行了线性化处理,然后针对系统中存在的故障建立起故障模型,通过构建Lyapunov方程得到了系统广义二次稳定以及鲁棒稳定的充分条件,并在系统稳定的条件下进一步得到状态反馈容错控制器,从而实现对故障系统的容错控制。最后通过一个数值算例说明所给方法的可行性。
The problems of fault-tolerant control were investigated for a class of parameters-uneertain time-varying descriptor systems with nonlinear time-varying perturbation, especially,when the system is in tauh.First, the nonlinear perturbation in the sys- tem is linearized under the assumption that the perturbation satisfies the Lipsehitz condition.Then,a fault model is established for the faults in the system, and sufficient conditions for generalized quadratic stability and robust stability of the system are determined by constructing a Lyapunov equation.Finally, a state-feedback tauh-tolerant controller is obtained under the condition of stability of the system.And a numerical calculation illustrates the method teasibility.
作者
苏晓明
王静耀
SU Xiao-ming;WANG Jing-yao(College of Science,Shenyang University of Technology,Shenyang,Liaoning 110870,China)
出处
《计算技术与自动化》
2018年第3期9-13,共5页
Computing Technology and Automation
基金
国家自然科学基金资助项目(61074005)
辽宁省优秀人才基金资助项目(LR2012005)
关键词
广义时变系统
非线性扰动
二次稳定性
鲁棒稳定性
容错控制
time-varying descriptor systems
nonlinear disturbation
quadratic stability
robust stability
tauh-tolerant control
