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研究一类非线性系统故障诊断与容错控制的集成设计问题。针对执行机构故障,结合反馈线性化理论、不变集理论以及鲁棒H∞控制理论,提出一种对执行机构故障具有完整性,并且能够迅速准确地诊断并隔离故障的故障诊断与容错控制集成设计方法。为了提高闭环控制系统的动态性能,完成了控制回路的极点区域部署设计。将该方法应用为卫星姿态控制系统的故障诊断与容错控制集成设计,仿真证明了该方法的有效性。
Research on Integrated Design of Fault Diagnosis and Fault Tolerant Control for a Class of Nonlinear Systems. Aiming at fault of actuator, combined with feedback linearization theory, invariant set theory and robust H∞control theory, a fault diagnosis and fault-tolerant control integrated with fault diagnosis of actuator and capable of diagnosing and isolating fault quickly and accurately is proposed Design method In order to improve the dynamic performance of the closed-loop control system, the design of the pole area of the control loop is completed. The method is applied to fault diagnosis and fault-tolerant control integrated design of satellite attitude control system. Simulation results show the effectiveness of the method.