摘要
针对带有时滞和参数不确定的非线性网络切换控制系统,采用模糊T-S模型建模,研究系统稳定控制问题。采用平均驻留时间法设计切换律,并设计切换模糊状态反馈控制器,给出了网络切换模糊系统指数稳定的平均驻留时间条件。证明了每个子系统在反馈控制访问率不低于稳定条件的切换策略下可以达到指数稳定。最后通过MATLAB数值仿真对比了同一系统用平均驻留时间方法与传统方法下的系统稳定控制状态曲线,结果表明了该方法具有更好的性能指标。
Switching laws based on average dwell time method and switched fuzzy state feedback controllerare designed for a network switched fuzzy control system. The networked control system is modeled as adiscrete-time switched system based on fuzzy T-S model with parametric uncertainties. If the feedbackcontrol access rate is higher than the stability condition, then the designed scheduling strategy can guaranteeevery subsystem reach exponential stability. The sufficient condition for exponentially stability is alsopresented, and the result shows that systems can be stabilized under the designed switching laws. Finally, aMATLAB simulation comparison example between the average dwell time method and the original methodshows the effectiveness of the proposed approaches.
出处
《控制工程》
CSCD
北大核心
2017年第1期161-165,共5页
Control Engineering of China
基金
天津市科委重大科技专项(14ZCDZGX00810)
