Control Strategy for Input-Series–Output-Parallel Converters

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Xinbo Ruan
  • Wu Chen
  • Lulu Cheng
  • Hong Yan
  • Tao Zhang

Detail(s)

Original languageEnglish
Pages (from-to)1174-1185
Journal / PublicationIEEE Transactions on Industrial Electronics
Volume56
Issue number4
Online published31 Oct 2008
Publication statusPublished - Apr 2009
Externally publishedYes

Abstract

The input-series-output-parallel (ISOP) converter, which consists of multiple dc-dc converter modules connected in series at the input and in parallel at the output, is an attractive solution for high input voltage and high power applications. This paper reveals the relationship between input voltage sharing (IVS) and output current sharing of the constituent modules of the ISOP converter. A novel IVS control strategy, which is decoupled with the output voltage regulation, is proposed. This control allows IVS and output voltage regulation to be designed independently. An ISOP converter, which uses the phase-shifted full-bridge (PS-FB) converter as the basic module, is considered. Based on the proposed control strategy, this ISOP converter together with the control circuit can be decoupled from several independent single-input and single-output systems. An ISOP converter consisting of three PS-FB modules is used to illustrate the design procedure, and a 3-kW experimental prototype is fabricated and tested. © 2009 IEEE.

Research Area(s)

  • Current sharing, dc/dc converter, parallel, phase-shifted control, series, voltage sharing

Citation Format(s)

Control Strategy for Input-Series–Output-Parallel Converters. / Ruan, Xinbo; Chen, Wu; Cheng, Lulu; Tse, Chi K.; Yan, Hong; Zhang, Tao.

In: IEEE Transactions on Industrial Electronics, Vol. 56, No. 4, 04.2009, p. 1174-1185.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review