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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。
Aiming at the nonlinear network switch control system with time-delay and uncertain parameters, the fuzzy T-S model is used to study the stability control of the system. The averaged residence time method is used to design the switching law, and the switching fuzzy-state feedback controller is designed. The exponential stability of the network switching fuzzy system is given. It is proved that each subsystem can reach exponential stability under the switching strategy that the feedback control access rate is not lower than the steady condition. Finally, the numerical simulation of MATLAB is used to compare the system stability control state curves of the same system with the average dwell time method and the traditional method. The results show that the method has better performance index.