Fault isolation used limited memory least square for multi-effectors aircraft

摘要

New adaptive thresholds are designed for the fast fault detection and reduction of the false alarm rate. The feature of actuator fault is employed to reset the initial conditions based on the fault detection results. The limited memory least square method is developed to achieve a real-time estimation of mutation parameters, which is applied for fault isolation. Simulation results suggest that, for different cases of actuator faults, the identification method can accurately estimate the degree of damaging within 0.2 seconds after fault alarm.