Parallel operation of Half-Bridge Converters with Current-Doubler Rectifier uUsing feedback linearization control

Josep M. Guerrero, Luis Garcia De Vicuna, Jose Matas, Juan Cruz, Jaume Miret

Publikation: Konferencebidrag uden forlag/tidsskriftPaper uden forlag/tidsskriftForskningpeer review

4 Citationer (Scopus)

Abstrakt

This paper presents a nonlinear controller applied to a parallel connected system of Half-Bridge with Current-Doubler Rectifier (HB-CDR) converters. The proposed control scheme is able to decouple the output-voltage dynamics from the input-stage variables, endowing high robustness of the output voltage against external disturbances. In addition, the inner average-current loop of the controller achieves good load sharing among modules in spite their parametric variations. The controller design is developed in three steps. First, the large-signal model of the parallel-connected HB-CDR system is obtained. Second, the controller expression is conceived through input-output linearization theory taking into account two control objectives: the regulation of the output-voltage and the equal current distribution among modules. And third, the control parameters are determined to obtain a proper dynamics, while ensuring the stability of the whole system.
OriginalsprogEngelsk
Publikationsdatodec. 2004
Antal sider6
DOI
StatusUdgivet - dec. 2004
Udgivet eksterntJa
Begivenhed2004 IEEE International Symposium on Industrial Electronics, IEEE-ISlE -
Varighed: 4 maj 20047 maj 2004

Konference

Konference2004 IEEE International Symposium on Industrial Electronics, IEEE-ISlE
Periode04/05/200407/05/2004

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