Title :
Nonlinear control of buck power converters containing time-varying uncertainty
Author :
Yi, Likui ; Zhao, Jun ; Ma, Dan
Author_Institution :
Key Lab. of Integrated Autom. of Process Ind., Northeastern Univ., Shenyang
Abstract :
The dynamic surface control technique can simplify the backstepping design and overcome the problem of ldquoexplosion of complexityrdquo. In this paper, by incorporating this design technique into the function approximation with Fourier series, an adaptive dynamic surface controller is designed for buck power converters containing time-varying uncertainty on load resistance. It can track the reference output voltage trajectory well, and has good robustness with respect to the parameter uncertainty. The effectiveness of the proposed control scheme is verified by the simulation.
Keywords :
Fourier series; adaptive control; control system synthesis; function approximation; nonlinear control systems; position control; power control; power convertors; robust control; time-varying systems; uncertain systems; Fourier series; adaptive dynamic surface controller design; backstepping design; buck power converters; function approximation; load resistance; nonlinear control; parameter uncertainty robustness; reference output voltage trajectory tracking; time-varying uncertainty; Adaptive control; Backstepping; Fourier series; Function approximation; Programmable control; Robustness; Surface resistance; Trajectory; Uncertainty; Voltage; Backstepping Control; Dynamic Surface Control; Power Converters; Time-varying Uncertainty;
Conference_Titel :
Control and Decision Conference, 2008. CCDC 2008. Chinese
Conference_Location :
Yantai, Shandong
Print_ISBN :
978-1-4244-1733-9
Electronic_ISBN :
978-1-4244-1734-6
DOI :
10.1109/CCDC.2008.4597875
