摘要
针对网络控制系统中存在数据传输时延,以及由被控对象和控制器之间的不同步给系统所带来的稳定性问题,提出了一种基于T-S模糊模型的状态反馈控制器设计方法。首先根据网络控制系统的连续时间T-S模糊模型,然后在该模型的的基础上应用并行分配补偿基本思想,同时采用新的Lyapunov泛函和在运算中加入权值调整矩阵的策略,得到了时滞相关稳定性的充分条件,并以线性矩阵不等式(LMI)的形式表示出来。基于该充分条件获得了基于LMI的模糊鲁棒控制器设计方法,相应的网络控制律可以通过求解LMI来构造。仿真实例验证了所得控制器设计方法的有效性和可行性。
The stability caused by the communication delay and the asynchronism between the plant and the controller in networked control systems,a method of state-feedback controller is concerned to design for networked control systems based on T-S fuzzy model. The sufficient condition for the delay-dependent stability is obtained by employing a new Lyapunov functional and the free-weight-matrix method.According to parallel distribution compensation,the sufficient condition expresses with linear matrix inequality(LMI).Based on this sufficient condition,the fuzzy robust controller design method is deduced in terms of LMI,The solution of the LMI can be used to construct the corresponding control law.The effectiveness and feasibility of the proposed controller design method is demonstratd by the simulation example.
出处
《控制工程》
CSCD
北大核心
2010年第S2期81-84,127,共5页
Control Engineering of China
基金
辽宁省自然科学基金资助项目(20072199)
中国博士后自然科学基金资助项目(20070420071)
