CAJ | 학술논문

研究了一类存在数据包丢失的异采样率双环网络控制系统。该系统由内控制环和外控制环组成，内、外控制环的采样周期不同，且由于网络的存在，传输过程会出现数据包丢失问题。采用提升技术将内环扩展成多采样周期模型来解决内环和外环统一建模的问题，利用马尔可夫链来描述数据包丢失情况，并建立综合系统模型。基于李雅普诺夫方法，给出了网络控制系统随机稳定的充分条件，提出控制器的设计方法，并通过数值算例验证了方法的有效性。
연구료일류존재수거포주실적이채양솔쌍배망락공제계통。해계통유내공제배화외공제배조성，내、외공제배적채양주기불동，차유우망락적존재，전수과정회출현수거포주실문제。채용제승기술장내배확전성다채양주기모형래해결내배화외배통일건모적문제，이용마이가부련래묘술수거포주실정황，병건립종합계통모형。기우리아보낙부방법，급출료망락공제계통수궤은정적충분조건，제출공제기적설계방법，병통과수치산례험증료방법적유효성。
A class of multi-rate double-loop network control system is studied.The system is composed of inner-loop and outer-loop with different sampling periods and packet loss.In the paper,the inner loop was extended to multi-sampling cycle model by lifting technology to solve the problem of unified modeling of the inner-loop and outer-loop.Then Markov chain is used to describe the packet loss process by lifting technology.Based on the method of Lyapunov,sufficient conditions for stochastic stability of network control systems are given.The controller design method is discussed.Finally,numerical examples are studied to verify the effectiveness of the proposed method.