摘要
由于网络通讯延时的存在,传统PID控制算法在网络化控制系统中的控制性能将受到影响.使用一种代价函数作为性能评估标准,并通过仿真实验分析了各种网络延时对PID控制性能的影响.利用根轨迹法分析了网络延时和PID参数对控制系统稳定性和控制性能的影响;用NetCon控制器实现了各种网络延时下对一个实验系统的控制.实验结果证明了仿真分析的正确性和有效性.
Network communication delay will influence the control performance of traditional PID control algorithm in networked control systems （NCSs）. A cost function is used as the criterion of performance evaluation and simulation is made to analyze the effect of all sorts of network delays on the PID control performance. With root locus method, the influences of network delay and PID parameters on the control system stability and control performance are analyzed, and a NetCon controller is used to control an experiment system under different network delays. The experiment results demonstrate the validity and effectiveness of the simulation analysis.
出处
《信息与控制》
CSCD
北大核心
2007年第3期302-307,314,共7页
Information and Control
基金
NetCon网络控制研究博士点基金资助项目(20050533028)
