Title :
Study on FDD and FTC of satellite attitude control system based on the effectiveness factor
Author :
Hou, Qian ; Cheng, Yuehua ; Lu, Ningyun ; Jiang, Bin
Author_Institution :
Acad. of Frontier Sci., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing
Abstract :
Integrated fault detection and diagnosis (FDD) and fault-tolerant control (FTC) methods for the satellite attitude control system with faults are investigated in this paper. The effectiveness factor is first introduced. Then a two-stage Kalman filtering algorithm is used to estimate the effectiveness factor. Two reconfiguration fault-tolerant controllers are designed and compared to compensate the primal controller based on online statistical hypothesis tests. Simulations results show that the algorithm is effective and easily to carry out. Besides the controllers can satisfy the performance requirements of an on-orbit satellite attitude control system when faults happen.
Keywords :
Kalman filters; artificial satellites; attitude control; fault diagnosis; fault tolerance; statistical testing; FDD; FTC; effectiveness factor; fault-tolerant control; integrated fault detection and diagnosis; online statistical hypothesis tests; satellite attitude control system; two-stage Kalman filtering algorithm; Control systems; Fault detection; Fault diagnosis; Fault tolerance; Fault tolerant systems; Filtering algorithms; Kalman filters; Satellites; Testing;
Conference_Titel :
Systems and Control in Aerospace and Astronautics, 2008. ISSCAA 2008. 2nd International Symposium on
Conference_Location :
Shenzhen
Print_ISBN :
978-1-4244-3908-9
Electronic_ISBN :
978-1-4244-2386-6
DOI :
10.1109/ISSCAA.2008.4776351
