Robust fault detection and isolation with unstructured uncertainty using eigenstructure assignment

摘要

This paper presents a numerical implementation for the eigenstructure assignment approach to the design of arobust fault detection and isolation (FDI) system. The resulting diagnostic observer achieves multiple fault isolation and it is robust to unstructured modeling errors without losing fault detection sensitivity. A procedure for the synthesis of a reduced-order diagnositc observer is also presented to increase the computational efficiency of the proposed observer. The overall fault diagnositc system is verified through simulations of the operation of a vertical take-off and landing (VTOL) aircraft.