针对不确定时延使网络控制系统性能下降的问题,基于Lyapunov函数和线性矩阵不等式,得出不确定性时延线性离散系统的闭环系统是渐近稳定且满足H∞性能指标的充分条件,将其应用在基于Internet的扳手劲竞赛控制系统的控制器设计中,实践证明所提算法能够提高网络控制系统在不确定时延影响下的动态性能。
Aiming at the performance degradation of uncertain time-delay networked control system,this paper proposes stability condition and the sufficient condition of H∞ performance criterion based on Lyapunov function and Linear Matrix Inequality(LMI),and applies the result in designing the controller of Internet-based arm wrestling contest control system.Practice indicates that the algorithm can improve the performance of the networked control system.