δ算子下的网络控制系统最优控制方法  

Optimal Control of Networked Control System Using δ Operator

作　　者：纪志成[1] 赵维一[1] 谢林柏 

机构地区：[1]江南大学控制科学与工程研究中心,江苏无锡214122

出　　处：《控制与决策》2006年第12期1349-1353,1359,共6页Control and Decision

基　　金：江苏省高技术研究计划(工业)项目(BG2005014)

摘　　要：研究网络控制系统的随机最优控制问题,提出了针对随机时延的网络控制系统最优控制律和二次型性能指标极小的控制律设计方案.在δ算子域内应用动态规划理论,设计网络控制系统的最优状态反馈和输出反馈控制律,得到的线性二次型高斯控制器可对系统中的随机长时延进行动态补偿.最后通过实例仿真验证了上述最优控制方案的可行性和有效性.The stochastic control problem of networked control systems is studied. An optimal control law with the minimum performance cost criteria is proposed for networked control systems subject to random time delays in the communication networks. The state feedback and output feedback control laws for the networked control system in operator domain are designed by using a dynamic programming approach. The derived optimal LQG controller can be used as a delay-compensator for networked control systems with long time delays. Finally a numerical example is given to illustrate the validity and efficiency of the proposed controller.

关 键 词：网络控制系统 Δ算子 随机时延 线性二次型高斯控制 动态规划 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]