网络控制系统中基于时延辨识的模糊控制器研究

针对网络控制问题，建立包含变网络时延及网络传输丢包等的统一模型．提出基于允许误差阈值及最大时延等多重准则的网络调度算法．在被控对象模型已知的情况下，本文采用模糊控制器作为Smith控制的内模控制部分，同时将Smith预估环节与被控对象放在一处，减少了冗余信息的传输，补偿了网络时延．仿真结果说明该调度算法及控制方案对于模型精确已知的一类网络控制对象能取得较好的控制效果．

Research on Fuzzy Control in Networked Control System Based on Time-delay Identification

Aiming at the networked control problem, a united model is established including variable network time-delay and data dropout, etc. Based on the multi-rule such as error-threshold and maximum time-delay allowed, the network-scheduling algorithm is presented. Under the known model of the controlled object, the fuzzy controller is used as inter-model part of Smith control and the Smith pre-estimation part is integrated with the controlled object, which reduces the transformation of redundant information and compensates the network-induced delay. Simulation results show that the proposed methods are valid and effective.