Scheme study on simultaneous AC-DC distribution network

被引：0
|
作者：
Xu X. [1 ]
Tai N. [1 ]
Fan C. [1 ]
Zheng X. [1 ]
机构：
[1] Key Laboratory of Control of Power Transmission and Conversion, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Minhang District, Shanghai
来源：
Dianwang Jishu/Power System Technology | 2016年 / 40卷 / 07期
基金：
中国国家自然科学基金;
关键词：
DC load; Distributed generation; Economy; MV distribution network; Simultaneous AC-DC; Zigzag transformer;
D O I：
10.13335/j.1000-3673.pst.2016.07.028
中图分类号：
学科分类号：
摘要：
Aiming at new problems occurring in power system and special structure of distribution network with multiple feeders, this paper puts forward simultaneous AC-DC system scheme based on zigzag transformer and designs AC-DC distribution network topology. Under premise of not changing original AC line insulation and structure, AC-DC superposition method is analyzed, maximum power transmitted is calculated and feasibility of the scheme is verified with simulation in this paper. Considering different proportions of AC and DC component of power source and load, economy between AC-DC and traditional AC power distribution system is analyzed comparatively. Simulation results show feasibility of distribution scheme in MV distribution network with zigzag transformer. Calculation example shows that the scheme could improve transmission capacity of distribution lines and alleviate tense situation of power supply and distribution. Economic analysis provides basis for choosing distribution mode for distribution network with AC-DC source and load. The scheme provides a new solution for distributed generation and continuously increasing DC load access to distribution network. © 2016, Power System Technology Press. All right reserved.
引用
收藏
页码：2120 / 2127
页数：7
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