State-of-the-art ±550 kV Direct Current High Voltage Gas Insulated Switchgear and Potential Applications

LI Dejun; LIU Zhimin; KOSSE M; KUSCHEL M; JUHRE K

doi:10.13296/j.1001-1609.hva.2020.06.006

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State-of-the-art ±550 kV Direct Current High Voltage Gas Insulated Switchgear and Potential Applications

更新时间：2025-04-26

- State-of-the-art ±550 kV Direct Current High Voltage Gas Insulated Switchgear and Potential Applications
- High VoltageApparatus Vol. 56, Issue 6, Pages: 32-41(2020)
- 作者机构：
  
  1. 西门子能源有限公司
  2. 上海西门子高压开关有限公司
  3. Siemens AG，EPC Transmission Solution
  4. Siemens AG，Transmission Products
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2020.06.006
  CLC： TM595
- Published：2020
- 稿件说明：
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[1]李德军,刘志民,KOSSE M,KUSCHEL M,JUHRE K.一种先进的±550 kV高压直流GIS及其潜在应用[J].高压电器,2020,56(06):32-41.

LI Dejun, LIU Zhimin, KOSSE M, et al. State-of-the-art ±550 kV Direct Current High Voltage Gas Insulated Switchgear and Potential Applications[J]. High voltageapparatus, 2020, 56(6): 32-41.
[1]李德军,刘志民,KOSSE M,KUSCHEL M,JUHRE K.一种先进的±550 kV高压直流GIS及其潜在应用[J].高压电器,2020,56(06):32-41. DOI： 10.13296/j.1001-1609.hva.2020.06.006.

LI Dejun, LIU Zhimin, KOSSE M, et al. State-of-the-art ±550 kV Direct Current High Voltage Gas Insulated Switchgear and Potential Applications[J]. High voltageapparatus, 2020, 56(6): 32-41. DOI： 10.13296/j.1001-1609.hva.2020.06.006.

摘要

全球能源市场的变化如电能生产和用电负荷区域分布的变化、陆上及海上风能发电的增长促使高压直流输电和变电技术的进一步应用

变电站、换流站以及不同传输介质之间的转换站采用紧凑的直流气体绝缘开关（DC GIS）技术方案越来越多地成为最佳选择。与交流系统相比

直流GIS的绝缘系统有一些特殊性

如绝缘子表面电荷积聚现象、电导率对电荷积聚的影响、温度对电导率的影响、这些因素对电场强度分布的影响等。基于这些考虑

优化了绝缘系统的场强分布

设计了用于电压等级达±550 kV、额定电流高达5 000 A的直流GIS的新型环氧树脂绝缘子和隔离开关等必备功能模块。此外还讨论了引入电场均匀化材料（FGM）来进一步改善电场分布的可行性。具有典型功能模块配置的直流GIS通过了专门的介电性能试验、热电性能和机械性能试验

以及国际大电网会议CIGRE推荐的绝缘系统试验等。这项技术将用于德国计划中的南北直流输电线路的变电站。

Abstract

High voltage direct current（HVDC）transmission and transformation technology is increasingly distribut-ed with the global change of power energy market e.g. power generation and load distribution

onshore and offshorewind power development. The compact direct current gas insulated switchgear（DC GIS）will be the optimal solutionfor more and more HVDC converter stations and transition stations between different transmission media. Comparedwith alternating current system the DC GIS insulation system features insulator surface charge accumulation

influ-ence of conductivity on charge accumulation

influence of temperature on conductivity and that of all the factors onelectric field distribution etc. Based on these physical properties

a new type of ±550 k V DC GIS epoxy insulatorwith rated current of 5 000 A and DC functional modules such as disconnector switches etc. have been designed. Inadditional

introduction of field grading material to optimize field distribution of insulation system is discussed. Typi-cal DC GIS configuration with the functional modules has been proven by passing the specific dielectric tests

thermaland mechanical tests

and CIGRE insulation system test. The technology will be used in substations on Germany’splanned north-south DC transmission line.

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