Title: Gain Scheduling Control of a Bidirectional DC-DC Converter with Large Dead-Time
Authors: Engelen, Kristof # ×
De Breucker, Sven
Tant, Peter
Driesen, Johan #
Issue Date: Mar-2014
Series Title: IET Power Electronics vol:7 issue:3 pages:480-488
Abstract: This paper investigates the impact of the dead-time of the semiconductor switches on the operation of a dc-dc converter used in a bidirectional storage system for a hybrid electric vehicle. The dead-time of the switches of the dc-dc converter under investigation is exaggerated to clearly illustrate the effects of the non-linear dependency of the current on the duty cycle. The resulting current response makes it impossible for a simple PI-controller to regulate the current in a satisfactory way. In this paper the mechanism behind the highly non-linear behaviour is investigated. The results of the analysis are used to develop a control scheme that employs gain scheduling and duty cycle presetting to cope with the non-linear response of the converter current to changes in the duty cycle. Experimental results are presented based on the implementation of the proposed control algorithm on a two-phase interleaved bidirectional boost converter to prove the viability of the concept.
ISSN: 1755-4535
Publication status: published
KU Leuven publication type: IT
Appears in Collections:ESAT - ELECTA, Electrical Energy Computer Architectures
× corresponding author
# (joint) last author

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