LC串联谐振型双向DC/DC变换器研究*

doi:10.16628/j.cnki.2095-8188.2020.02.006

电器与能效管理技术 ›› 2020, Vol. 587 ›› Issue (2): 30-40.doi: 10.16628/j.cnki.2095-8188.2020.02.006

• 分布式能源及并网技术 • 上一篇下一篇

LC串联谐振型双向DC/DC变换器研究^*

罗敏¹, 梁晖²

1.广东电网有限责任公司电力科学研究院,广东广州 510080;
2.北京交通大学,北京 100044

收稿日期:2019-12-01 出版日期:2020-02-15 发布日期:2020-03-28
作者简介:罗敏(1985—),女,高级工程师,主要从事电动汽车及储能研究。梁晖(1971—),女,副教授,研究方向为风力发电、光伏发电、微网变流器及DC/DC变换器等。
基金资助:
* 广东电网公司科技项目(GDKJXM20161883)

Research of LC Series Resonant Bidrectional DC/DC Converter

LUO Min¹, LIANG Hui²

1.Electric Power Research Institute, Guangdong Power Grid Co., Ltd., Guangzhou 510080, China;
2.Beijing Jiaotong University, Beijing 100044, China

Received:2019-12-01 Online:2020-02-15 Published:2020-03-28

摘要/Abstract

摘要： 针对传统双向DC/DC变换器开关管有源桥(DAB)存在回流功率大、软开关范围有限且开关管均在电流峰值处关断等问题,引入电感电容谐振网络,对LC串联谐振型DC/DC变换器进行研究。采用基波分析法建立了LC串联谐振型DAB变换器近似等效电路模型,推导了变换器的功率传输、输出电流表达式。详细阐述了其在移相控制方式下的工作原理、功率传输特性、软开关实现条件以及三种软开关。变换器在实现软开关的同时,谐振腔电流更接近于正弦,开关管关断电流较小,降低了关断损耗,并且可以改善系统电磁兼容特性。利用MATLAB/Simulink仿真软件验证了LC串联谐振型DAB变换器的原理和控制方法的正确性,最后搭建硬件实验平台,实验结果验证了电路拓扑原理及其控制策略的正确性和可行性。

关键词: 双向DC/DC变换器, 串联谐振, 移相控制, 基波分析法

Abstract: The traditional bidirectional DC/DC converter has large backflow power,limited soft switch range and switch off at peak current.On the basis of the original circuit,a resonance network was introduced to study LC series resonant DC/DC converter.The approximate equivalent circuit model of LC series resonant DAB converter was established by fundamental wave analysis,and the expressions of power transmission and output current of the converter were derived.The working principle,power transmission characteristics,soft switching conditions and three kinds of soft switching modes were described.Compared with the non resonant DAB converter,the LC series resonant DAB converter is more close to the sinusoidal,the switch off current is smaller,the switching loss is reduced,and the system EMC characteristics can be improved.Through MATLAB/Simulink simulation software,it validated the principle and control method of the system.The utilization and efficiency of the system performance were validated by the experimental results.

Key words: bidirectional DC-DC converter, series resonant, phase-shifting control, funda mental wave analysis

中图分类号:

TM464

罗敏, 梁晖. LC串联谐振型双向DC/DC变换器研究^*[J]. 电器与能效管理技术, 2020, 587(2): 30-40.

LUO Min, LIANG Hui. Research of LC Series Resonant Bidrectional DC/DC Converter[J]. DIANQI YU NENGXIAO GUANLI JISHU, 2020, 587(2): 30-40.

参考文献

[1] AKAGI H,YAMAGISHI T,TAN N M L,et al.Power-loss breakdown of a 750 V,100 kW,20 kHz bidirectional isolated DC-DC converter using SiC-MOSFET/SBD dual modules[C]//Power Electronics Conference.IEEE,2014:750-757.
[2] 梁美,郑琼林,可狮,等.SiC MOSFET、Si CoolMOS和IGBT的特性对比及其在DAB变换器中的应用[J].电工技术学报,2015,30(12):41-50.
[3] TAN N M L,ABE T,AKAGI H.Design and performance of a bidirectional isolated DC-DC converter for a battery energy storage system[J].IEEE Transactions on Power Electronics,2012,27(3):1237-1248.
[4] 王新颖,汤广福,贺之渊,等.远海风电场直流汇集用DC/DC变换器拓扑结构研究[J].中国电机工程学报,2017,37(3):837-847.
[5] 杜春水,张承惠,陈阿莲,等.光伏高效软开关DC/DC变换器的数字化控制与实现[J].电工技术学报,2011,26(8):57-63.
[6] SCHUCH L,RECH C,HEY H L,et al.A battery ZVT bi-directional charger for uninterruptible power supplies[C]//2002 IEEE 33rd Annual IEEE Power Electronics Specialists Conference.Proceedings (Cat.No.02CH37289),Cairns,Qld.,2002:1841-1846.
[7] JAIN P K,ESPINOZA J R,JIN H.Performance of a single-stage UPS system for single-phase trapezoidal-shaped AC-voltage supplies[J].IEEE Trans.on Power Electron,1998,13(5):912-913.
[8] FAN H,LI H.A novel phase-shift bidirectional dc-dc converter with an extended high-efficiency range for 20 kVA solid state transformer[C]//Proc.IEEE Energy Convers.Congr.Expo.,2010:3870-3876.
[9] ZHOU H,KHAMBADKONE A M.Hybrid modulation for dual-active-bridge bidirectional converter with extended power range for ultracapacitor application[J].IEEE Transactions on Industry Applications,2009,45(4):1434-1442.
[10] OGGIER G,GARCIG O,OLIVA A R.Modulation strategy to operate the dual active bridge DC-DC converter under soft switching in the whole operating range[J].IEEE Transactions on Power Electronics,2011,26(4):1228-1236.
[11] 李艳,阮新波,杨东升,等.带缓冲单元的多输入直流变换器电路拓扑[J].电工技术学报,2009,24(5):302-308.
[12] 陈申,吕征宇,姚伟.LLC谐振型软开关直流变压器的研究与实现[J].电工技术学报,2012,27(10):163-169.
[13] 胡海兵,王万宝,孙文进,等.LLC谐振变换器效率优化设计[J].中国电机工程学报,2013,33(18):48-56.
[14] 周路遥,姜久春.LCL谐振双有源全桥双向DC/DC变换器分析与控制[J].电力系统自动化,2016,40(19):82-86.
[15] JUNG J H,KIM H S,RYU M H,et al.Design methodology of bidirectional CLLC resonant converter for high-frequency isolation of dc distribution systems[J].IEEE Trans.on Power Electron,2013,28(4):1741-1755.
[16] 吕正,颜新武.直流微电网中用于高频隔离的CLLC型双向直流变压器的模态变压器的模态分析与优化设计[J].中国电机工程学报,2016,36(21):5918-5928.
[17] 陈启超,纪延超,王建赜.双向CLLLC谐振型直流变压器的分析与设计[J].中国电机工程学报,2014,34(18):2898-2905.
[18] 曹红喜,刘亚,王勇.三相LLC谐振变换器研究[J]. 电器与能效管理技术,2019(8):53-59.
[19] 苏两河,林菁,刘毅,等.应急充电装置LLC谐振变换器设计及优化[J]. 电器与能效管理技术,2019(4):46-51.
[20] 李娟,蔡慧.降压型双桥臂交流开关电容变换器研究[J].自动化仪表,2018,39(1):48-52.
[21] 谢小高. 小功率DC/DC变流器模块标准化若干关键问题研究[D].杭州:浙江大学,2005.

LC串联谐振型双向DC/DC变换器研究^*

Research of LC Series Resonant Bidrectional DC/DC Converter

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