【作者】 张聚； 龚俊强； 张海华；

【Author】 ZHANG Ju GONG Junqiang ZHANG Haihua (College of Information Engineering, Zhejiang University of Technology, Hangzhou 310032, China)

【机构】 浙江工业大学信息工程学院；

【摘要】 针对存在干扰的网络控制系统,考虑到控制系统的输入误差和输入误差变化率,设计了一种基于模糊参数自适应的PID控制器,它能根据误差及误差变化率,利用模糊控制原理进行PID参数的调整,以符合系统的实际要求。利用TrueTime工具箱建立了包含模糊控制的PID控制器的网络控制系统仿真模型,并将其与常规PID控制器的网络控制系统相比较。仿真结果表明,在相同的网络带宽占用条件下,本文设计的模糊参数自适应PID控制器比常规PID控制器要好,具有更好的鲁棒性和抗干扰能力。更多还原

【Abstract】 For the existence of interference in network control system, by considering both error and error difference, a fuzzy self-adjusting PID controller based network control system is presented in this paper. In order to correspond with the practical requirements, according to the system error and error difference, the algorithm uses the principle of fuzzy to adjust PID parameters. Finally, True Time Toolbox is used to model the NCS which contains a fuzzy PID controller. we compared it with conventional PID controller. Simulation results show that, in comparison to the conventional PID controller, the proposed fuzzy PID controller provides better robustness and anti-jamming capability in the same bandwidth occupied network.更多还原