Research and Design of DC Transfer Switches for ±400 k V Qinghai to Tibet HVDC Transmission Project

GAO Wen; CAO Rui; JIAO Qiuzhong; ZHAO Xiying; ZHANG Wenbing; BAI Xiaoyi

doi:10.13296/j.1001-1609.hva.2015.11.013

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Research and Design of DC Transfer Switches for ±400 k V Qinghai to Tibet HVDC Transmission Project

更新时间：2025-04-26

- Research and Design of DC Transfer Switches for ±400 k V Qinghai to Tibet HVDC Transmission Project
- High VoltageApparatus Vol. 51, Issue 11, Pages: 79-84(2015)
- 作者机构：
  
  西安高压电器研究院有限责任公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.11.013
  CLC： TM721.1
- Published：2015
- 稿件说明：
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[1]高文,曹蕤,焦秋忠,赵曦英,张文兵,白笑怡.±400kV青藏直流输电工程用直流转换开关研究与设计[J].高压电器,2015,51(11):79-84.

GAO Wen, CAO Rui, JIAO Qiuzhong, et al. Research and Design of DC Transfer Switches for ±400 k V Qinghai to Tibet HVDC Transmission Project[J]. High voltageapparatus, 2015, 51(11): 79-84.
[1]高文,曹蕤,焦秋忠,赵曦英,张文兵,白笑怡.±400kV青藏直流输电工程用直流转换开关研究与设计[J].高压电器,2015,51(11):79-84. DOI： 10.13296/j.1001-1609.hva.2015.11.013.

GAO Wen, CAO Rui, JIAO Qiuzhong, et al. Research and Design of DC Transfer Switches for ±400 k V Qinghai to Tibet HVDC Transmission Project[J]. High voltageapparatus, 2015, 51(11): 79-84. DOI： 10.13296/j.1001-1609.hva.2015.11.013.

摘要

高压直流输电作为最为经济的能源输送方式

具有输送容量大、传输距离远、损耗低等多种优势

±400 k V青藏直流工程的建设实现了西北与西藏电网的联网

优化了能源资源配置。直流系统使用直流转换开关可以获得多种功能和运行的灵活性。文中以研发直流转换开关为目标

阐述了无源型基本原理

从产品的总体结构、断路器的电弧电压与直流开断的关系、自激振荡回路的元件设计及工程设计等方面进行了研究。所研发的直流转换开关通过了试验验证

并已应用于青藏直流输电工程的拉萨换流站。

Abstract

As the most economical way to delivery energy

high voltage direct current（HVDC）transmission system has many advantages

such as large transmission capability

long distance transmission

low loss and so on. The construction of the ±400 k V Qinghai to Tibet HVDC transmission project interconnected the northwest power grid and Tibet power grid

and optimized the allocation of energy resources in China. Using DC transfer switches

the DC system could obtain a variety of functions and operate flexibly. Aiming at developing DC transfer switches

this paper illustrates the basic principles of passive DC transfer switches

studies the overall structure of the product

the relationship between the arc voltage of circuit breaker and the DC interruption

designs elements of the self-excited oscillation circuit and the engineering designs. The developed DC transfer switch has passed the test and got certification

and now are used in Lhasa converter station of HVDC transmission project form Qinghai to Tibet.

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