摘要
随着新能源和电力电子负荷的直流接入,直流配电网在未来存在着巨大的应用场景。为了更好地支撑直流配电网在未来的应用,更精准地配置直流配电网研究实验能力,更加贴切符合未来直流用电场景的研究需要,更深入探索交直流配电网之间能效对比特性。首先对中低压直流配电实验能力的电压序列选择、典型关键设备进行论证和调研;针对建议的电压序列和关键设备构建模拟直流场景,接下来对基于电力电子变压器的直流配电网和传统交流配电网能效进行对比分析,最后给出了直流配电网未来网格化的场景展望。
With the access of new energy and power electronic load,there will be a huge application scenario for DC distribution network in the future.In order to better support the future application of DC distribution network,more accurately configure the experimental capacity of DC distribution network research,more suitable for the future research needs of DC power scenarios,and more in-depth explore the energy efficiency comparison characteristics between AC and DC distribution networks,this paper first focuses on the voltage sequence selection of the experimental capacity of medium and low voltage DC distribution to do the demonstration and investigation of typical key equipment,construction of simulation DC scenario for the proposed voltage sequence and key equipment.And then comparative analysis of energy efficiency between DC distribution network based on power electronic transformer and traditional AC distribution network is carried out.Finally,this paper gives the future grid scenario prospect of DC distribution network.
作者
张宸宇
刘建坤
葛雪峰
袁晓冬
ZHANG Chenyu;LIU Jiankun;GE Xuefeng;YUAN Xiaodong(Electrical Science Research Institute,State Grid Jiangsu Electric Power Co.,Ltd.,Nanjing 211103,China)
出处
《电器与能效管理技术》
2019年第22期60-67,76,共9页
Electrical & Energy Management Technology
基金
2019年江苏电力公司科技项目(高性能电力电子变压器功率模块及其控制策略研究)
关键词
直流配电网
典型场景
能效分析
电压序列
DC distribution network
typical scenario
energy efficiency analysis
voltage sequence
