Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/20857
Title: Non-linear PWM control of single-switch quadratic buck converters using internal model
Authors: Wei, XL
Tsang, KM 
Chan, WL 
Issue Date: 2009
Publisher: Institution of Engineering and Technology
Source: IET power electronics, 2009, v. 2, no. 5, p. 475-483 How to cite?
Journal: IET power electronics 
Abstract: An internal model control with conditional integrator is proposed for the robust output regulation of single-switch quadratic buck converters. The output regulation problem of a quadratic buck converter is converted to the stabilisation of an augmented system consisting of the buck converter and the internal model. The design procedures include the design of an internal model with conditional integrator and a robust state feedback stabiliser with saturation behaviour. The closed-loop stability of the converter will be theoretically analysed. Finally, the effectiveness of the proposed control scheme for large load and supply variations are also tested. The design of the controller does not require the exact circuit parameters and the stability proof demonstrates the robustness against parameter uncertainties.
URI: http://hdl.handle.net/10397/20857
ISSN: 1755-4535
EISSN: 1755-4543
DOI: 10.1049/iet-pel.2008.0170
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