电机与控制学报
電機與控製學報
전궤여공제학보
ECTRIC MACHINES AND CONTROL
2009年
4期
592-596,602
,共6页
网络控制系统%指数稳定%输出反馈%数据包丢失%比例积分控制
網絡控製繫統%指數穩定%輸齣反饋%數據包丟失%比例積分控製
망락공제계통%지수은정%수출반궤%수거포주실%비례적분공제
network control system%exponential stability%output feedback%data packet dropout%proportional-integral control
针对时变时延和数据包丢失的网络控制系统的稳定性和控制器设计问题,提出比例积分输出反馈控制策略.基于异步动态系统理论、Lyapunov稳定性原理和线性矩阵不等式方法,在传感器与控制器间、控制器与执行器间,建立时变时延和数据包丢失的比例积分输出反馈网络控制系统模型,给出网络控制系统指数稳定的半负定矩阵条件和比例积分输出反馈控制器设计方法.通过数值仿真例子验证,指数稳定的半负定矩阵条件和比例积分控制器设计方法是可行的.
針對時變時延和數據包丟失的網絡控製繫統的穩定性和控製器設計問題,提齣比例積分輸齣反饋控製策略.基于異步動態繫統理論、Lyapunov穩定性原理和線性矩陣不等式方法,在傳感器與控製器間、控製器與執行器間,建立時變時延和數據包丟失的比例積分輸齣反饋網絡控製繫統模型,給齣網絡控製繫統指數穩定的半負定矩陣條件和比例積分輸齣反饋控製器設計方法.通過數值倣真例子驗證,指數穩定的半負定矩陣條件和比例積分控製器設計方法是可行的.
침대시변시연화수거포주실적망락공제계통적은정성화공제기설계문제,제출비례적분수출반궤공제책략.기우이보동태계통이론、Lyapunov은정성원리화선성구진불등식방법,재전감기여공제기간、공제기여집행기간,건립시변시연화수거포주실적비례적분수출반궤망락공제계통모형,급출망락공제계통지수은정적반부정구진조건화비례적분수출반궤공제기설계방법.통과수치방진례자험증,지수은정적반부정구진조건화비례적분공제기설계방법시가행적.
According to the problems of exponential stability and controller design for network control system (NCS) with time-varying delay and data packet dropout, the proportional-integral (PI) output feedback control strategy was put forward. Based on the theory of asynchronous dynamical system, principle of Lyapunov stability and method of linear matrix inequality, the model for PI output feedback NCS with both time-varying delay and data packet dropout occurring among sensor, controller and actuator was constructed. And the negative semi-definite matrix condition for exponential stability and the controller design of NCS were presented. Numerical example shows that both are feasible.
