摘要
研究存在随机数据丢失网络化非线性时滞系统的控制器设计问题,同时考虑了测量信号存在数据随机丢失现象和控制信号存在数据包随机丢失现象.采用T-S模糊模型对非线性时滞受控对象进行重新建模;而针对测量信道和控制信道同时存在的数据包随机丢失现象,则采用2个相互独立满足Bernoulli分布的随机二进制序列进行描述.基于并行分配补偿算法,提出一种动态输出反馈模糊控制器的设计方法,以矩阵不等式方式给出了控制器存在的充分条件,该条件确保闭环系统均方指数稳定和满足期望耗散性能指标;并进一步提出一种控制器参数求解的凸优化方法.数字仿真例子验证了所提方法的可行性和有效性.
The control problem for nonlinear networked control systems with random packet losses is investigated. Missing measurement from the sensor to the controller and missing data from the controller to the actuator are simultaneously considered. The T-S discrete fuzzy model is adopted for modeling the nonlinear time-delay system. The measurement and control packet losses are described by two independent Bernoulli distributed white sequence. Based on parallel distributed compensation ( PDC) approach,a method to design a dynamic output feedback fuzzy controller is proposed. A sufficient condition for the existence of the dynamic output feedback fuzzy controller is presented via matrix inequalities,which guarantee that the closed-loop systems are exponentially mean-square stable and strictly dissipative. A convex optimization method is provided to obtain the parameters of the controller. The numerical simulation results verify the feasibility and the validity of the proposed method.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2010年第S1期55-60,共6页
Journal of Southeast University：Natural Science Edition
基金
国家自然科学基金资助项目(60874059
60604027)
福建自然科学基金资助项目(2009J01279)
福建省教育厅科技资助项目(JB09018)
福州大学科技发展基金资助项目(2009-XY-2)
关键词
非线性时滞网络控制系统
随机数据包丢失
耗散性
T-S模糊模型
LMI
nonlinear delay networked control system
random packet losses
dissipativeness
T-S fuzzy model
linear matrix inequality
