Fault Diagnosis and Fault Tolerant Control for Non-Gaussian Singular Time-Delayed Stochastic Distribution Systems with Disturbance Based on the Rational Square-Root Model

For the non-gaussian singular time-delayed stochastic distribution control (sdc) system with unknown external disturbance where the output probability density function (pdf) is approximated by the rational square-root b-spline basis function,a robust fault diagnosis and fault tolerant control algorithm is presented. a full-order observer is constructed to estimate the exogenous disturbance and an adaptive observer is used to estimate the fault size. a fault tolerant tracking controller is designed using the feedback of distribution tracking error,fault,and disturbance estimation to let the postfault output pdf still track desired distribution. finally,a simulation example is included to illustrate the effectiveness of the proposed algorithms and encouraging results have been obtained. © 2016 yuancheng sun and zhanhong liang.