Overvoltage and Insulation Coordination for MMC-HVDC Asynchronous Project

LIU Dapeng; CHEN Xiaoxuan; GOU Ruifeng; ZHANG Wanrong; WANG Jing

doi:10.13296/j.1001-1609.hva.2015.04.019

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Overvoltage and Insulation Coordination for MMC-HVDC Asynchronous Project

更新时间：2025-04-26

- Overvoltage and Insulation Coordination for MMC-HVDC Asynchronous Project
- High VoltageApparatus Vol. 51, Issue 4, Pages: 104-108(2015)
- 作者机构：
  
  西安西电电力系统有限公司
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2015.04.019
  CLC： TM721.1
- Published：2015
- 稿件说明：
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[1]刘大鹏,程晓绚,苟锐锋,张万荣,王晶.异步联网工程柔性直流换流站过电压与绝缘配合[J].高压电器,2015,51(04):104-108.

LIU Dapeng, CHEN Xiaoxuan, GOU Ruifeng, et al. Overvoltage and Insulation Coordination for MMC-HVDC Asynchronous Project[J]. High voltageapparatus, 2015, 51(4): 104-108.
[1]刘大鹏,程晓绚,苟锐锋,张万荣,王晶.异步联网工程柔性直流换流站过电压与绝缘配合[J].高压电器,2015,51(04):104-108. DOI： 10.13296/j.1001-1609.hva.2015.04.019.

LIU Dapeng, CHEN Xiaoxuan, GOU Ruifeng, et al. Overvoltage and Insulation Coordination for MMC-HVDC Asynchronous Project[J]. High voltageapparatus, 2015, 51(4): 104-108. DOI： 10.13296/j.1001-1609.hva.2015.04.019.

摘要

基于模块化多电平换流器（MMC）的柔性直流异步联网换流站过电压与绝缘配合是工程设计的关键技术之一

其研究对换流站关键设备选型、设计、制造和试验具有重要的指导作用。文中依托云南电网与南方主网鲁西背靠背直流异步联网工程开展研究

考虑了系统不同稳态运行状态的组合以及异步交流系统的特点

提出了柔性直流换流站的避雷器布置方案

对系统典型工况进行了仿真计算

确定了各避雷器的最大应力

并最终确定了换流站各设备的绝缘水平。研究结果为工程设计提供了重要依据。

Abstract

Study on overvoltage and insulation coordination can provide basic technical support for the implementation of MMC-HVDC asynchronous project. The results are instructive to equipment in converter station for type selecting

designing

manufacturing and testing. Based on the back-to-back DC asynchronous interconnection project between Yunnan Power Grid and China Southern Power Grid

the insulation coordination scheme is proposed for its converter station

the combination of different system steady operation state

and the characteristic of asynchronous AC system are taken into consideration. The maximum stress on arrester and insulation levels of equipment in converter station are determined. The study results provide an important basis for engineering design.

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Related Institution

Northwest Branch of State Grid Corporation of China

State Key Laboratory of Power Grid Environmental Protection

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