Design and analysis of robust fault detection filter using LMI tools

H_/H∞Sensor Fault Detection and Isolation of Uncertain Time-Delay Systems

“…Definition 1: For a map from to in (3), the performance is defined by [9] For a map from to , the performance is defined by Definition 2: Let the evaluation function be and the threshold function be (4) where is the constant time window. In cases where it is necessary to display explicitly the association of and with the residual from the th observer, we write and , respectively.…”

“…A simple yet effective alternative could be a scheme via an observer bank, where as many observers as sensors are involved [5]. The residual generated by each observer in the bank should be as sensitive to the faults on all sensors except each one and as robust against disturbance, as possible, in a reasonable (for example, an and an [6][7][8][9][10]) sense. Then the fault can be isolated based on a suitable voting scheme [5,11].…”

Sampled-Data Fault Detection Observer Design of Takagi-Sugeno Fuzzy Systems

“…대표적인 연구 성 과로는 모델 기반의 해석적 중복(analytic redundancy) 기 법이 있다 [1][2][3][4][5][6][7][8][9][10]. 해석적 중복 기법은 관측기로부터 추정 된 시스템의 상태 오차에 적절한 가중치를 두어 여분 (residual)을 계산하고 여분 평가 함수와 주어진 문턱 값을 비교하여 고장 여부를 판단하는 방법이다 [1,2] …”

Observer-based Fault Tolerant Controller Design for Multi-UAV Systems

“…하지만 이러한 중요성에도 불구하고 고장포용 제어 기 법은 고장진단 기술에 비하여 아직 다양한 연구가 이루어지 지 않았다 [2][3][4][5][6][7]. 제어기의 고장포용 성능은 특히 다개체 무인항공기(UAV: He{ } :…”