A New UKF Based Fault Detection Method in Non-linear Systems

摘要

To detect the bias fault in stochastic non-linear dynamic systems,a new Unscented Kalman Filtering(UKF) based real-time recursion detection method is brought forward with the consideration of the flaws of traditional Extended Kalman Filtering(EKF).It uses the UKF as the residual generation method and the Weighted-Sum Squared Residual(WSSR) as the fault detection strategy.The simulation results are provided which demonstrate better effectiveness and a higher detection ratio of the developed methods.