Design of the Optimal Fault Diagnoser Based on Duality Principle
In order to diagnose the actuator faults and the sensor faults in linear systems, an optimal fault diagnosis method is proposed based on duality principle. This scheme first translates the fault states into the states of an augmented system. Based on duality principle, the design problem of the observer for fault diagnosis is translated into the state feedback design problem of the duality system of observation error. Then the design of the optimal fault diagnoser is translated into the design of the equivalent optimal state feedback control of error system. The real-time fault diagnosis is realized on-line by constructing the reduced-order fault diagnoser, and the quadratic performance index is catered. Simulation results demonstrate the feasibility and validity of the proposed scheme.
Juan Li Ruohong Ye
College of Mechanical and Electrical Engineering Qingdao Agricultural University Qingdao, P.R.China 266109
国际会议
南宁
英文
2007-07-20（万方平台首次上网日期，不代表论文的发表时间）