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 a robust 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 diagnostic observer is also presented to increase the computational efficiency of the proposed observer. The overall fault diagnostic system is verified through simulations of the operation of a vertical take-off and landing (VTOL) aircraft.