计算机工程与应用
計算機工程與應用
계산궤공정여응용
COMPUTER ENGINEERING AND APPLICATIONS
2014年
24期
54-57
,共4页
网络控制系统%多故障%模态依赖%鲁棒H￥容错控制
網絡控製繫統%多故障%模態依賴%魯棒H￥容錯控製
망락공제계통%다고장%모태의뢰%로봉H￥용착공제
networked control systems%multi-fault%mode-dependent%robust H￥ fault-tolerant control
针对存在传感器失效、随机丢包和时延等多故障的网络控制系统，建立了系统的转换模态。通过运用Lyapunov和LMI判定方法，研究了系统在模态依赖下渐近稳定的充分条件。设计了传感器失效的模型，提出了控制器的设计方法，运用鲁棒H￥控制方法，改善了闭环网络控制系统的性能。通过仿真实例验证了该方法的可行性和有效性。
針對存在傳感器失效、隨機丟包和時延等多故障的網絡控製繫統，建立瞭繫統的轉換模態。通過運用Lyapunov和LMI判定方法，研究瞭繫統在模態依賴下漸近穩定的充分條件。設計瞭傳感器失效的模型，提齣瞭控製器的設計方法，運用魯棒H￥控製方法，改善瞭閉環網絡控製繫統的性能。通過倣真實例驗證瞭該方法的可行性和有效性。
침대존재전감기실효、수궤주포화시연등다고장적망락공제계통，건립료계통적전환모태。통과운용Lyapunov화LMI판정방법，연구료계통재모태의뢰하점근은정적충분조건。설계료전감기실효적모형，제출료공제기적설계방법，운용로봉H￥공제방법，개선료폐배망락공제계통적성능。통과방진실례험증료해방법적가행성화유효성。
For a class networked control systems against sensor failure, random packet dropout and time-delay, conversion mode is established. Based on constructing a suitable Lyapunov function and Linear Matrix Inequality(LMI)techniques, the sufficient conditions for the stability of systems asymptotically in modal dependence are researched. The sensor failure model is designed and the design method of controller is put forward. Through using robust H￥ fault-tolerant control method, the performance of the closed-loop networked control systems is improved. The simulation results show the effectiveness and the feasibility of proposed approach.
