Development of Fault Detection, Isolation Strategy, and Robust Fault Tolerant Controller to Sustain Fight Control System Accurate Failures

Abstract

In this article study, a Fault Detection and Isolation (FDI) algorithm of n-channel redundant Flight Control Computer which compares the inputs received from the sensors on different channels and detects and isolates the faulty channels. The inputs from remaining healthy channels are mediated and forwarded to controller. It further demonstrates the performance of Proportional Integral and Derivative controller in presence of actuator stuck and actuator ineffective faults detected through the FDI algorithm. Also, the robustness of controller has been demonstrated.