TY - JOUR
T1 - Adaptive feedforward and feedback control of non-linear time-varying uncertain systems
AU - Wu, Wei
AU - Chou, Yi Shyong
N1 - Funding Information:
The authors are grateful to the Editor and the refer e for their insightful co ments and helpful su gestions. This work is supported by the National Scinece Council of Republic of China under grant number NSC-87-2214-E-0 1-008.
Copyright:
Copyright 2017 Elsevier B.V., All rights reserved.
PY - 1999
Y1 - 1999
N2 - An adaptive regulation scheme is proposed for a class of non-linear time-varying systems with parametric uncertainties. The proposed approach is based upon a combination of the adaptive backstepping design method and a feedforward control scheme to design a non-linear adaptive feedforward and feedback controller, such that robust output tracking can be achieved even in the presence of structured uncertainties, as well as time-varying, measurable disturbances. Although the systematic design procedure does not a priori satisfy the feedback linearizable system with triangular structures, however, the constructed condition must be satisfied to ensure that the control scheme has a stable inversion. Under the feasibility condition, the states of the resulting closed-loop system would be guaranteed boundedness and converge to a bounded set. Finally, the proposed methodology is illustrated by a chemical reactor example.
AB - An adaptive regulation scheme is proposed for a class of non-linear time-varying systems with parametric uncertainties. The proposed approach is based upon a combination of the adaptive backstepping design method and a feedforward control scheme to design a non-linear adaptive feedforward and feedback controller, such that robust output tracking can be achieved even in the presence of structured uncertainties, as well as time-varying, measurable disturbances. Although the systematic design procedure does not a priori satisfy the feedback linearizable system with triangular structures, however, the constructed condition must be satisfied to ensure that the control scheme has a stable inversion. Under the feasibility condition, the states of the resulting closed-loop system would be guaranteed boundedness and converge to a bounded set. Finally, the proposed methodology is illustrated by a chemical reactor example.
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U2 - 10.1080/002071799220489
DO - 10.1080/002071799220489
M3 - Article
AN - SCOPUS:0344240878
VL - 72
SP - 1127
EP - 1138
JO - International Journal of Control
JF - International Journal of Control
SN - 0020-7179
IS - 12
ER -