| Issue |
Eur. Phys. J. Appl. Phys.
Volume 24, Number 2, November 2003
|
|
|---|---|---|
| Page(s) | 121 - 138 | |
| Section | Physics of Energy Generation, Conversion and Storage | |
| DOI | https://doi.org/10.1051/epjap:2003068 | |
| Published online | 16 September 2003 | |
https://doi.org/10.1051/epjap:2003068
Robust fixed frequency control for parallel connected Forward/Buck converters
Groupe de Recherche en Électrotechnique et Électronique de Nancy, 2 avenue de la forêt de Haye, 54516 Vandœuvre-lès-Nancy Cedex, France
Corresponding author: Jean-Philippe.Martin@ensem.inpl-nancy.fr
Received:
19
April
2002
Revised:
29
November
2002
Accepted:
12
June
2003
Published online:
16
September
2003
In this paper, we present a robust control strategy which is well adapted to parallel connected Forward/Buck converters. It is based on a non-linear controller which uses the advantages offered by sliding mode control and peak current techniques. This control offers fixed frequency control without using equivalent control calculation, synchronized ramp or variable hysteresis bandwidth. It also provides good robustness depending on variations of load parameters. A model of the system is developed which allows us to study the system independently of the module number that constitutes the structure. The controllability of the system is discussed and an analysis of the current behavior is provided.
PACS: 84.30.Jc – Power electronics; power supply circuits
© EDP Sciences, 2003
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