A Soft-Switching Control Method of Isolated LC Series Resonant Transformer Full Bridge DC–DC Converter

Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 288)

Abstract

For the different characteristics of nonresonant and resonant isolated bidirectional full bridge DC–DC converter, a unified expression of power transmissions is derived from two DC–DC converters. The power transfer characteristics could be unified described through the power expression. The problem of isolated bidirectional DC–DC converter is that the switching loss increases and the converter efficiency declines with the forced turn-on or turn-off of switch devices in high-frequency situation. In this paper, to solve this problem, an isolated LC series resonant transformer full bridge DC–DC converter is taken as research object, a phase-shift control strategy which could realize zero voltage turn-on and decrease the turn-off current of the power devices to decrease switching loss and increase the efficiency is proposed. The validity of proposed control strategy is verified through simulation and experiment results.

Keywords

Bidirectional full bridge DC–DC converter Series resonant Soft-switching technology First harmonic analysis Voltage gain 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Management DepartmentTianjin UniversityTianjinPeople’s Republic of China
  2. 2.Rescuing Center for Mineral Disaster of HenanZhengzhouPeople’s Republic of China

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