期刊论文

中文

电力电子技术

1000-100X

2016

50

5

9-12,023

10.3969/j.issn.1000-100X.2016.05.003

湖南省高校创新平台开放基金项目（14K001）； 长沙市科技项目（k1403041-11）~~；

本校为第一机构

针对微网中直流电源的不稳定性问题,提出一种新型基于磁集成结构双向DC/DC变换器的飞轮储能系统(FESS)。该系统中变换器利用磁集成技术将3个磁性元件(隔离变压器前、后谐振电感、变压器)集成到一个磁芯中。FESS除了能供给微网缺额电能,还能稳定直流母线电压,改善电能质量,可靠性更高。最后制作了一台10 kW, 460~560 V输入、320 V输出的双向DC/DC变换器样机。实验分析表明该方案具有元件少、占地空间小等优点,还可有效降低电流纹波,且适用于大功率场合。

Aiming at the DC power supply instability in micro-grid, a flywheel energy storage system （FESS） is prop- osed,it adopts the DC/DC converter with integrated magnetic structure.The converter using magnetic integration tech- nology integrates three inductors into a single core, which include the resonant inductors and an isolation transformer. Not only the FESS can supply the shortfall electricity of micro-grid, but also can stabilize the voltage of DC bus and can improve power quality and reliability.Finally a 10 kW prototype with 460-560 V in...