TY - GEN
T1 - Fault diagnosis with disturbance rejection performance based on disturbance observer
AU - Cao, Songyin
AU - Guo, Lei
PY - 2009
Y1 - 2009
N2 - In this paper, a new fault diagnosis approach is presented for a class of non-linear systems with external disturbances. The unknown disturbances are supposed to be generated by an exogenous system, where some classical assumptions on disturbances can be removed. It is shown that it will be difficult to diagnose the fault if disturbances and faults exist simultaneously in the system. To overcome this obstacle, a new composite observer is constructed by combining a fault diagnosis observer with a disturbance observer, with which the fault can be estimated and the disturbances can be rejected at the same time. Finally, simulation is given to show the efficiency of the proposed approach.
AB - In this paper, a new fault diagnosis approach is presented for a class of non-linear systems with external disturbances. The unknown disturbances are supposed to be generated by an exogenous system, where some classical assumptions on disturbances can be removed. It is shown that it will be difficult to diagnose the fault if disturbances and faults exist simultaneously in the system. To overcome this obstacle, a new composite observer is constructed by combining a fault diagnosis observer with a disturbance observer, with which the fault can be estimated and the disturbances can be rejected at the same time. Finally, simulation is given to show the efficiency of the proposed approach.
UR - https://www.scopus.com/pages/publications/77950798345
U2 - 10.1109/CDC.2009.5400655
DO - 10.1109/CDC.2009.5400655
M3 - 会议稿件
AN - SCOPUS:77950798345
SN - 9781424438716
T3 - Proceedings of the IEEE Conference on Decision and Control
SP - 6947
EP - 6951
BT - Proceedings of the 48th IEEE Conference on Decision and Control held jointly with 2009 28th Chinese Control Conference, CDC/CCC 2009
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 48th IEEE Conference on Decision and Control, CDC 2009, held Jointly with the 28th Chinese Control Conference, CCC 2009
Y2 - 15 December 2009 through 18 December 2009
ER -