Design and Modeling of CLLC Converter for Bidirectional On-Board Charger

Zheng Bai,Hao Liu,Jingwei Shao,Xiangjun Zhang,Jingyun Gu,Dianguo Xu

2022 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific)（2022）

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摘要

This paper designs a CLLC converter for the bidirectional on-board charger which has fully symmetrical parameters. Based on the three-stage charging strategy, the small-signal model of the converter is established and verified, and the closed-loop PFM control is realized. Finally, a planar transformer with integrated leakage inductor is designed and a 1. 2kW experimental prototype is built.

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关键词

CLLC,Fully symmetrical,Bidirectional converter

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