TY - GEN
T1 - Composite disturbance-observer-based control and H? Control for complex systems
AU - Wei, Xinjiang
AU - Zhang, Huifeng
AU - Yan, Ning
AU - Guo, Lei
PY - 2008
Y1 - 2008
N2 - A new type of control scheme combined with the distance-observer-based control and H∞ control is proposed for a class of discrete-time complex models with exogenous disturbances. The unknown external disturbances are supposed to include two parts. One is generated by an exogenous system with uncertainty, which can represent the harmonic signals with modeling perturbations. The other is supposed to have the bounded H2-norm. The novel composite control scheme combined is applied to reject and attenuate the disturbances for such uncertain nonlinear discrete-time models. Parametric uncertainties exist both in concerned plant and in exogenous subsystem. By integrating the disturbance observers with H∞ control laws, the first type of disturbances can be estimated and rejected, and the second one can be attenuated. Simulations are given to demonstrate the effectiveness of the results and compare the proposed results with the previous schemes.
AB - A new type of control scheme combined with the distance-observer-based control and H∞ control is proposed for a class of discrete-time complex models with exogenous disturbances. The unknown external disturbances are supposed to include two parts. One is generated by an exogenous system with uncertainty, which can represent the harmonic signals with modeling perturbations. The other is supposed to have the bounded H2-norm. The novel composite control scheme combined is applied to reject and attenuate the disturbances for such uncertain nonlinear discrete-time models. Parametric uncertainties exist both in concerned plant and in exogenous subsystem. By integrating the disturbance observers with H∞ control laws, the first type of disturbances can be estimated and rejected, and the second one can be attenuated. Simulations are given to demonstrate the effectiveness of the results and compare the proposed results with the previous schemes.
KW - Distance-observer-based control
KW - Disturbances reject and attenuate
KW - H control
UR - https://www.scopus.com/pages/publications/52149104959
U2 - 10.1109/WCICA.2008.4593684
DO - 10.1109/WCICA.2008.4593684
M3 - 会议稿件
AN - SCOPUS:52149104959
SN - 9781424421145
T3 - Proceedings of the World Congress on Intelligent Control and Automation (WCICA)
SP - 4693
EP - 4696
BT - Proceedings of the 7th World Congress on Intelligent Control and Automation, WCICA'08
T2 - 7th World Congress on Intelligent Control and Automation, WCICA'08
Y2 - 25 June 2008 through 27 June 2008
ER -