Novel integrated three-port DC/DC converter for different operating modes between renewable energy,electrolyser and fuel cell/battery  

作　　者：Lilei Jiang Jianxin Qu Lingguo Kong Hejianuig Qian Chuang Liu Guowei Cai 

机构地区：[1]Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology,Ministry of Education,Northeast Electric Power University,Jilin 132012,China [2]State Grid Harbin Power Supply Company,Harbin,Heilongjiang Province,China

出　　处：《Clean Energy》2023年第1期174-189,共16页清洁能源（英文）

基　　金：supported by the National Key R&D Program of China (no.2018YFB1503100);the National Natural Science Foundation of China (no.51907021).

摘　　要：Due to the slow dynamic power-regulation characteristics of the electrolyser(EL),a novel integrated three-port DC/DC converter topology based on a phase-shifted full-bridge converter and dual active-bridge converter is proposed in this paper.Especially,the proposed converter can achieve a fast auxiliary response to the EL.This topology has the features of single-stage conversion,high system integration and compatibility with multiple operation modes.The operational principles and a hybrid modulation scheme of the proposed converter are analysed in detail.In addition,the power-transmission characteristics of each port and the soft-switching range are researched.On these bases,six operation modes suitable for a hydrogen energy-storage system are designed.The simulation and a 2-kW scaled-down experimental prototype are established to verify the feasibility and effectiveness of the proposed topology in different operation modes.

关 键 词：renewable energy ELECTROLYSER fuel cell three-port DC/DC converter 

分 类 号：TM732[电气工程—电力系统及自动化]