Fault Diagnosis of Linear Systems Based on the Unknown Input Observer Design Technique

미지입력 관측기 설계기법을 이용한 선형 시스템의 고장진단

A new method of Fault Diagnosis in linear systems using unknown input observer design technique is presented. This method is based upon the fact that the structural uncertainties, actuator faults, and sensor faults of a linear system can be rewritten in unknown inputs. The proposed method can simultaneously estimate the state variables of an actual system, as well as the actuator and sensor faults.