NDLI: Stability analysis of a Buck converter with input filter based on an LPV formalism

Content Provider	IEEE Xplore Digital Library
Author	Lefranc, P. Godoy, E. Duc, G. Iftikhar, M.U.
Copyright Year	2009
Description	Author affiliation: Energy Department, SUPELEC 3 rue Joliot Curie, Gif-sur-Yvette, F-91192 France (Lefranc, P.; Iftikhar, M.U.) \|\| Automatic Control Department SUPELEC 3 rue Joliot Curie, Gif-sur-Yvette, F-91192 France (Godoy, E.; Duc, G.)
Abstract	This paper presents stability analysis of a Buck converter based on an LPV (Linear Parameter-Varying) approach. Theoretical stability analysis of DC-DC converters is not so easy especially with wide variations of input voltage and load. Authors propose a theoretical method that can be used by converter designers. A nonlinear model of buck converter is proposed to achieve stability analysis. The main control law is based on a state-feedback. The input voltage and load power variations are specified in ranges and variations can be as fast as possible. LPV analysis of a PI-feedback and a state-feedback are compared to show drawbacks of conventional PI-feedback. Simulation results are presented to verify stability analysis. They are based on two model levels: a nonlinear averaged model and a switched model.
Starting Page	140
Ending Page	145
File Size	366181
Page Count	6
File Format	PDF
ISBN	9781424446117
DOI	10.1109/POWERENG.2009.4915177
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-03-18
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Analytical models Buck converters Passive filters Capacitors Voltage Nonlinear filters Switches Stability analysis Inductors Power generation
Content Type	Text
Resource Type	Article

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