Research on Key Technology and Equipment for Zhangbei 500 kV DC Grid

TANG Guangfu; WANG Gaoyong; HE Zhiyuan; PANG Hui; ZHOU Xiao; SHAN Yunhai; LI Qiang

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Research on Key Technology and Equipment for Zhangbei 500 kV DC Grid

更新时间：2025-12-08

- Research on Key Technology and Equipment for Zhangbei 500 kV DC Grid
- Vol. 44, Issue 7, Pages: 2097-2106(2018)
- 作者机构：
  
  全球能源互联网研究院有限公司
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published Online：30 July 2018，
  
  Published：2018
- 稿件说明：
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TANG Guangfu, WANG Gaoyong, HE Zhiyuan, et al. Research on Key Technology and Equipment for Zhangbei 500 kV DC Grid[J]. 2018, 44(7): 2097-2106.
DOI：

TANG Guangfu, WANG Gaoyong, HE Zhiyuan, et al. Research on Key Technology and Equipment for Zhangbei 500 kV DC Grid[J]. 2018, 44(7): 2097-2106. DOI：

摘要

随着张北地区风电、光电等可再生能源不断开发

大规模清洁能源并网与传输对柔性直流电网的发展与构建提出了迫切需求。综合考虑了柔性直流（VSC-HVDC）输电技术的优点

设计了一种对称双极结构作为张北四端直流电网主拓扑

采用半桥式模块化多级换流器（MMC）拓扑结构和架空线进行电力传输。同时

提出了一种新型模块化级联直流断路器拓扑

并开发了500 kV柔直换流阀和直流断路器样机

以满足张北四端直流电网的需求。

Abstract

With the capacity of new energy resources such as wind power and photovoltaic in Zhangbei region increasing rapidly

the reliable transmission and consumption capabilities of large-scale and high-proportion new energy resources are urgently improved. Considering the advantages of the VSC-HVDC transmission technology

Zhangbei project is designed as symmetrical bipolar system which adopts half-bridge modular multi-level converter（MMC） topology and overhead lines for power transmission. In this paper

a system scheme was presented

and some results were provided. Meanwhile

a novel modular cascaded hybrid DC breaker concept was proposed

and 500 kV VSC valve and DC breaker prototype were developed to meet the requirement of the Zhangbei four-terminal DC grid.

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