双向全桥DC/DC变换器在直流微电网中的应用  

Application of bi-directional full-bridge DC/DC converter in DC micro-grid

作　　者：宋春宁[1] 付栋 李欣[1] Song Chunning;Fu Dong;Li Xin(School of Electrical Engineering,Guangxi University,Nanning 530004,China)

机构地区：[1]广西大学电气工程学院,南宁530004

出　　处：《电测与仪表》2020年第18期128-132,共5页Electrical Measurement & Instrumentation

基　　金：国家自然科学基金资助项目(51767005);广西自然科学基金资助项目(2016GXNSF AA380328)。

摘　　要：双向变换器是微电网中的不可或缺的一部分,由DC/DC变换器将分布式电源、储能装置与负荷等构成的直流微电网,在未来供配电发展中会成为一种新的趋势。文中设计和制作了双向全桥DC/DC变换器,分析、计算和选择该变换器的功率器件及参数等,并进行了检验和参数调整。然后将该变换器其应用于直流微电网的锂电池组储能支路,实验结果表明,该双向全桥变换器能够正常工作,当直流微电网系统功率产生波动时,该储能支路能够与其他支路协调配合,稳定了直流母线电压,提高了直流微电网的稳定性。The bi-directional DC/DC converter plays a role in micro-grid.By the DC/DC converter of distributed power supplies,energy storage devices and loads connected to the DC micro-grid,has become a new trend in the future development of power supply and distribution.In this paper,the hardware of bi-directional full-bridge DC/DC converter is designed and fabricated,the power device and parameters of converter are analyzed,calculated and selected,and the test and parameter adjustment are carried out.Then,the bi-directional DC/DC converter is applied to the lithium-ion battery energy storage branch of DC micro-grid.The experimental results show that the bi-directional full-bridge DC/DC converter can work normally.When the power of the DC micro-grid system fluctuates,the branch can coordinate with other branches to stabilize the voltage of the DC bus and improve the stability of the DC micro-grid.

关 键 词：直流微电网 双向全桥DC/DC变换器 验证实验 

分 类 号：TM727[电气工程—电力系统及自动化]