网络控制系统优化设计研究

Network Control System Optimization Design Research

研究网络控制系统的优化问题,提高系统的实时性。针对传统的网络控制系统是闭环系统,网络带宽有限,网络传输中的时间延迟、数据包丢失等问题不可避免。当发生以上情况时,反馈信号不能及时传回,造成控制信号发出延迟,影响了系统的实时性。为了解决上述问题,提出了一种非规律时滞补偿算法,把时滞信号引入自由权矩阵,能够得到延迟信号相关稳定性条件,并充分运用线性信号特征矩阵保证网络控制系统的性能,保证系统在线控制的实时性。证明改进方法能够避免控制信号延迟造成的滞后问题,提高了网络控制系统的实时性。

Research network control system optimization and improve the system real-time.The traditional network control system is a closed loop system,network bandwidth is limited,network transmission time is often delayed,and packets are frequently lost.In order to solve this problem,this paper proposed a delay compensation algorithm based on delay control rule.The delay signal was introduced into liberty matrix,which can get the related stability conditions of delayed signals.Then based on the sufficient conditions,linear characteristic matrix signal was used to guarantee the network control system and ensure the performance of the system.Experiments show that the method can avoid the lag of caused control signals,and improve the network control system real-time.