Development and Challenge of DC Power System With Different Voltage Levels

Yingbiao LI; Jun LIANG; Guanglu WU; Gen LI

doi:10.12096/j.2096-4528.pgt.2018.019

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Development and Challenge of DC Power System With Different Voltage Levels

Energy Internet | 更新时间：2025-07-04

- Development and Challenge of DC Power System With Different Voltage Levels
- Power Generation Technology Vol. 39, Issue 2, Pages: 118-128(2018)
- 作者机构：
  
  1.电网安全与节能国家重点实验室(中国电力科学研究院有限公司), 北京市海淀区 100192
  2.卡迪夫大学, 卡迪夫 CF24 3AA, 英国
- 作者简介：
- 基金信息：
  
  National Key Research & Development Program of China(2016YFB0900600);State Grid Corporation of China Research Program(52094017000W)
- DOI：10.12096/j.2096-4528.pgt.2018.019
  CLC：
- Received：18 January 2018，
  
  Published：28 April 2018
- 稿件说明：
移动端阅览
Yingbiao LI, Jun LIANG, Guanglu WU, et al. Development and Challenge of DC Power System With Different Voltage Levels[J]. Power Generation Technology, 2018, 39(2): 118-128.
DOI：

Yingbiao LI, Jun LIANG, Guanglu WU, et al. Development and Challenge of DC Power System With Different Voltage Levels[J]. Power Generation Technology, 2018, 39(2): 118-128. DOI： 10.12096/j.2096-4528.pgt.2018.019.

摘要

随着新能源发电规模越来越大，输送距离越来越远以及大规模分布式发电和直流负荷的接入，现有的交流电力系统越来越难以满足电力系统发展的需求。由于高压直流输电（high voltage direct current，HVDC）的技术优势，交流电力系统面临的这些挑战，却给直流电力系统的发展带来了新的契机。介绍了欧美各国和我国在高压直流输电系统、中压直流配电系统和低压直流供电系统等不同电压等级直流电力技术的发展现状，分别对高压直流输电技术、中压直流配电技术和低压直流供电技术的应用场景进行了说明，并针对现有交流输电技术的不足，分析了直流电力技术在新能源远距离输电和分布式电源接入等方面的优越性。最后介绍了现有技术水平下直流电力系统发展在关键设备研发、控制保护和标准制定等方面所面临的挑战。

Abstract

With the increasing scale of new energy power generation

longer and longer transmission distances

and access to large-scale distributed generation and DC loads

it is increasingly difficult for existing AC transmission systems to meet the needs of power system development. Due to the technical advantages of high voltage direct current(HVDC)

the challenges faced by AC power systems have brought new opportunities for the development of DC power systems. The development status of DC power technologies at different voltage levels in Europe

America

and China were introduced in this paper. The application scenarios of DC power technologies with different voltage levels were described respectively. In light of the shortcomings of existing AC power transmission technologies

the superiority of DC power technologies were analyzed. Finally

the challenges faced by the development of DC power systems under the current state of technology in key equipment R&D

control and protection

and standard setting were introduced.

关键词

Keywords

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