Sliding-mode control for current distribution in parallel-connected DC-DC converters

Author

Donoso-Garcia, P.F. ; Cortizo, P.C. ; de Menezes, B.R. ; Mendes, M. A Severo

Author_Institution

Fed. Univ. of Minas Gerais, Belo Horizonte, Brazil

Volume

145

Issue

4

fYear

1998

fDate

7/1/1998 12:00:00 AM

Firstpage

333

Lastpage

338

Abstract

A new control scheme for the current distribution in parallel connected DC-DC power converters is presented. It uses a sliding-mode controller to achieve both output current equalisation and output voltage regulation. The controller improves the dynamic performance of a parallel buck power converter; the output voltage is robust against load disturbances and the output currents are very well equalised. The analysis and design of the sliding-mode controller is developed. Simulation and experimental results show good dynamic performance of the proposed control scheme

Keywords

DC-DC power convertors; control system analysis; control system synthesis; electric current control; robust control; variable structure systems; voltage control; control design; control simulation; current distribution control; dynamic control performance; load disturbance robustness; output current equalisation; output voltage regulation; parallel buck power converter; parallel connected DC-DC power converters; sliding-mode controller;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings -

Publisher

iet

ISSN

1350-2352

Type

jour

DOI

10.1049/ip-epa:19981801

Filename

707040