具有通信约束的网络控制系统的协同优化方法  

Optimal Integrated Method for Networked Control Systems with Communication Constraints

作　　者：吴小红[1] 李祖欣[1] 王培良[1] 

机构地区：[1]湖州师范学院信息工程学院,浙江湖州313000

出　　处：《电气自动化》2008年第1期12-15,共4页Electrical Automation

基　　金：浙江省科技计划项目(2007C31009);浙江省湖州市科技计划项目(2007YZ10);浙江省湖州市自然科学基金项目(2006YZ03)

摘　　要：对于传感器、控制器和执行器典型空间分布且具有通信约束条件的网络控制系统,应用通信序列的概念和混合逻辑动态的构架,将其建模成一类集成控制和调度的通信约束离散周期系统。采用线性矩阵不等式来描述信息调度与控制的协同优化问题,使闭环系统具有 r 指数渐近稳定。启发式求解方法在最优 H_∞性能下解决了信息调度策略问题,同时也节省了搜索最优解的计算时间。Network control systems （NCSs） with communication constraints are spatially distributed systems in which the communication between sensors, actuators, and controllers occur through a shared communication network. By employing the notion of communication sequence and mixed logical dynamical framework, those NCSs subject to communication constraints can be modeled to an integrated control and scheduling of discrete-time period system. The optimal solution for message scheduling and control co-design is depicted by linear matrix inequalities （LMIs）, which can guarantee r-exponentially asymptotically stable of the close loop system. A heuristic search method can effectively seek the optimal solution of scheduling strategy in H∞ norm. Simultaneously, it can also greatly save the computational cost.

关 键 词：网络控制系统 混合逻辑动态系统 通信约束 控制与调度协同设计 H∞控制 稳定度 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]