TY - GEN
T1 - Anti-disturbance optimal control of nonlinear systems based on multi-source disturbances
AU - Su, Wenyang
AU - Zhou, Peng
AU - Wu, Xudong
AU - Shen, Qingcheng
AU - Yi, Yang
AU - Zheng, Weixing
PY - 2023/9
Y1 - 2023/9
N2 - For a class of nonlinear systems with multi-source disturbances, this article discusses the problem of optimal control and anti-disturbance control. The plant considered is a nonlinear system wherein matched and mismatched disturbances exist simultaneously. A nonlinear disturbance observer (DO) is constructed to dynamical estimate and reject the matched disturbance in the input channel. In the meantime, according to optimal control theory, a controller is designed to reduce the impact of the mismatched disturbance and enhance the nonlinear system's ability to resist disturbance. Further, a stability criterion and an optimal control strategy are obtained by employing Lyapunov stability theory and adaptive dynamic programming (ADP) method. Finally, the performance of the proposed control scheme is validated through a series of comparative simulations.
AB - For a class of nonlinear systems with multi-source disturbances, this article discusses the problem of optimal control and anti-disturbance control. The plant considered is a nonlinear system wherein matched and mismatched disturbances exist simultaneously. A nonlinear disturbance observer (DO) is constructed to dynamical estimate and reject the matched disturbance in the input channel. In the meantime, according to optimal control theory, a controller is designed to reduce the impact of the mismatched disturbance and enhance the nonlinear system's ability to resist disturbance. Further, a stability criterion and an optimal control strategy are obtained by employing Lyapunov stability theory and adaptive dynamic programming (ADP) method. Finally, the performance of the proposed control scheme is validated through a series of comparative simulations.
KW - Adaptive dynamic programming (ADP)
KW - Disturbance observer based control (DOBC)
KW - Lyapunov theory
KW - Multi-source disturbances
KW - Nonlinear systems
UR - http://www.scopus.com/inward/record.url?scp=85175554352&partnerID=8YFLogxK
UR - https://go.openathens.net/redirector/westernsydney.edu.au?url=https://doi.org/10.23919/CCC58697.2023.10240106
U2 - 10.23919/CCC58697.2023.10240106
DO - 10.23919/CCC58697.2023.10240106
M3 - Conference Paper
AN - SCOPUS:85175554352
SN - 9798350342598
T3 - Chinese Control Conference, CCC
SP - 740
EP - 744
BT - Proceedings of the 42nd Chinese Control Conference, July 24-26, 2023, Tianjin, China
PB - IEEE Computer Society
CY - China
T2 - 42nd Chinese Control Conference, CCC 2023
Y2 - 24 July 2023 through 26 July 2023
ER -