Digital Control Strategy for ZVS Bidirectional DC-DC Converter

EasyChair Preprint 1739

Abstract

The Bidirectional DC-DC converter is the most popular topology for hybrid electrical vehicle (HEV) or fuel cell vehicle (FCV) applications. This kind of converter has the advantages of simple circuit topology, soft-switching implementation without additional devices, high efficiency. In this paper, the turn on zero-voltage switching (ZVS) of all MOSFETs is achieved by a negative offset inductor current at the start and the end of each pulse period. Moreover, the optimization of inductor current is proposed to minimize the conduction losses. A 2.5kW prototype is successfully built and tested to demonstrate the feasibility of the controller.

Keyphrases: Bidirectional converter, digital control, phase-shift control

@booklet{EasyChair:1739,
  author    = {Nguyen Anh Dung and Huang-Jen Chiu and Yao-Ching Hsieh and Jing Yuan Lin and Phu Pham Hieu},
  title     = {Digital Control Strategy for ZVS Bidirectional DC-DC Converter},
  howpublished = {EasyChair Preprint 1739},
  year      = {EasyChair, 2019}}