Distributed FDI for a class of LPV multi-agent system: A geometric approach

In this paper, the problem of distributed fault detection and isolation (FDI) for a class of multi-agent system is considered. A residual generator is designed by using a geometric approach. By defining the unobservablility subspace of the LPV multi-agent system, we design a set of residual generators which are sensitive to some actuator fault and decoupled from noise and other faults. Due to the fact that such residual generators only depend on the direction of the faults and noises and have nothing to do with the amplitudes of faults and noises, this method can be used to detect incipient faults, small faults and intermittent faults even with large noises. We bring forward a detailed algorithm to calculate the desired parameters. Finally, a simulation results on small satellites are provided to demonstrate the effectiveness of our proposed distributed FDI algorithm.