摘要
针对丢包现象影响网络化控制系统(NCS)稳定性的问题,设计了一个基于单边网络的广义预测控制器(GPC).该控制器通过滚动优化确定一系列控制动作,利用该控制作用对基于模型的预测值进行修正,最终计算出向前N步的控制数据,以此来弥补数据丢失给系统带来的影响.经过仿真实验证明在网络存在丢包的情况下,NCS系统仍然能够达到稳定.
This paper is concerned with the problem of dropout in networked control system which may affect its stability. A generalized predicted controller is designed which has network on only one side. The controller determines a series of controlling actions through roiling optimization. The forecast values from the robot are amended by the control function. Finally, the control data of N steps ahead are calculated, which may remedy the influence of data dropout, ensuring the stability of NCS.
出处
《北方工业大学学报》
2009年第1期32-35,62,共5页
Journal of North China University of Technology
关键词
网络化控制系统
广义预测控制
网络丢包
network control system
generalized predicted control
data packet dropout
