TY - GEN
T1 - Retrofit reconfigurable fault tolerant control for mechanical systems
AU - Xiao, Bing
AU - Fu, Zhengzhou
AU - Yang, Jia
AU - Wu, Chaofan
AU - Huo, Xing
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/10/19
Y1 - 2016/10/19
N2 - This paper investigates a difficult problem of retrofit reconfigurable control design that retains a baseline/nominal controller and, at the same time, accommodates actuator faults and uncertain dynamics so that the overall system is stable and the control objective is met. A theoretical retrofit control architecture is developed for a class of mechanical systems. This is accomplished using minimum prior information regarding the baseline/nominal controller. A reconstruction mechanism is firstly designed to precisely estimate system uncertainties and actuator fault. Using such reconstructed value, a retrofit control signal is generated as a compensation effort, and added to the nominal controller to compensate for uncertainties and faults. It is shown that the closed-loop system resulted from the proposed retrofit controller has the same properties of the nominal closed-loop system, which consists of the certain system dynamics and the dynamics of the nominal controller. The performance of this retrofit reconfigurable control design is verified with simulation results.
AB - This paper investigates a difficult problem of retrofit reconfigurable control design that retains a baseline/nominal controller and, at the same time, accommodates actuator faults and uncertain dynamics so that the overall system is stable and the control objective is met. A theoretical retrofit control architecture is developed for a class of mechanical systems. This is accomplished using minimum prior information regarding the baseline/nominal controller. A reconstruction mechanism is firstly designed to precisely estimate system uncertainties and actuator fault. Using such reconstructed value, a retrofit control signal is generated as a compensation effort, and added to the nominal controller to compensate for uncertainties and faults. It is shown that the closed-loop system resulted from the proposed retrofit controller has the same properties of the nominal closed-loop system, which consists of the certain system dynamics and the dynamics of the nominal controller. The performance of this retrofit reconfigurable control design is verified with simulation results.
KW - actuator faults
KW - Mechanical systems
KW - retrofit reconfigurable control
KW - sliding mode observer
UR - https://www.scopus.com/pages/publications/84997545205
U2 - 10.1109/ICIEA.2016.7603628
DO - 10.1109/ICIEA.2016.7603628
M3 - 会议稿件
AN - SCOPUS:84997545205
T3 - Proceedings of the 2016 IEEE 11th Conference on Industrial Electronics and Applications, ICIEA 2016
SP - 462
EP - 467
BT - Proceedings of the 2016 IEEE 11th Conference on Industrial Electronics and Applications, ICIEA 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 11th IEEE Conference on Industrial Electronics and Applications, ICIEA 2016
Y2 - 5 June 2016 through 7 June 2016
ER -