Reconfigurability evaluation method for input-constrained control systems  

作　　者：TU Yuanyuan WANG Dayi LI Wenbo 

机构地区：[1]Beijing Institute of Control Engineering,China Academy of Space Technology,Beijing 100190,China [2]Beijing Institute of Spacecraft System Engineering,China Academy of Space Technology,Beijing 100190,China

出　　处：《Journal of Systems Engineering and Electronics》2021年第5期1023-1030,共8页系统工程与电子技术（英文版）

基　　金：This work was supported by the National Natural Science Funds for Distinguished Young Scholars of China(61525301);the National Natural Science Fund for Excellent Young Scholars of China(62022013);the National Natural Science Foundation of China(61690215).

摘　　要：This paper proposes a quantitative reconfigurability evaluation method for control systems with actuator saturation and additive faults from the perspective of system stability.Placing the saturated feedback law in the convex hull of a group of auxiliary linear controls,the sufficient reconfigurability conditions for the system under additive faults are derived using invariant sets.These conditions are then expressed as linear matrix inequalities(LMIs)and applied to quantify the degree of reconfigurability for the fault system.The largest fault magnitude for which the system can be stabilized,the largest initial state domain from which all the trajectories are convergent,and the minimum final state domain to which the trajectories will converge are investigated.The effectiveness of the proposed method is illustrated through an application example.

关 键 词：control reconfigurability additive fault actuator saturation invariant set fault-tolerant control 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]