适用于直流电网的预限流型直流断路器拓扑

唐诵; 贾冠龙; 张成浩; 贺之渊; 陈敏

doi:10.7500/AEPS20190730001

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适用于直流电网的预限流型直流断路器拓扑

研制与开发 | 更新时间：2025-06-16

- 适用于直流电网的预限流型直流断路器拓扑
- Topology of DC Circuit Breaker with Pre-current-limiting Capability for DC Grid
- 电力系统自动化-方正平台 2020年44卷第11期页码：152-162
- 作者机构：
  
  1.浙江大学电气工程学院，浙江省杭州市 310027
  2.全球能源互联网研究院有限公司，北京市 102209
- 作者简介：
  
  唐诵(1996—)，男，博士研究生，主要研究方向：高压直流输电及柔性直流输电技术。E-mail：tangsong718@zju.edu.cn
  贾冠龙(1990—)，男，博士研究生，主要研究方向：高压直流输电及柔性直流输电技术。E-mail：xizhao513196@zju.edu.cn
  张成浩（1997—），男，硕士研究生，主要研究方向：高压直流输电及柔性直流输电技术。E-mail：chenghao1205@zju.edu.cn
  陈敏(1979—)，男，通信作者，博士，副教授，博士生导师，主要研究方向：高压直流输电及柔性直流输电技术。E-mail：calim@zju.edu.cn
- 基金信息：
  
  国家重点研发计划资助项目(2018YFB0904600)
- DOI：10.7500/AEPS20190730001
  中图分类号：
- 收稿日期：2019-07-30，
  
  修回日期：2019-12-09，
  
  网络出版日期：2020-04-16，
  
  纸质出版日期：2020-06-10
- 稿件说明：
移动端阅览
唐诵,贾冠龙,张成浩等.适用于直流电网的预限流型直流断路器拓扑[J].电力系统自动化,2020,44(11):152-162.

TANG Song,JIA Guanlong,ZHANG Chenghao,et al.Topology of DC Circuit Breaker with Pre-current-limiting Capability for DC Grid[J].Automation of Electric Power Systems,2020,44(11):152-162.
唐诵,贾冠龙,张成浩等.适用于直流电网的预限流型直流断路器拓扑[J].电力系统自动化,2020,44(11):152-162. DOI： 10.7500/AEPS20190730001.

TANG Song,JIA Guanlong,ZHANG Chenghao,et al.Topology of DC Circuit Breaker with Pre-current-limiting Capability for DC Grid[J].Automation of Electric Power Systems,2020,44(11):152-162. DOI： 10.7500/AEPS20190730001.

摘要

为提高多端直流电网在直流故障下的运行可靠性，同时降低对直流断路器分断能力的要求，提出了一种适用于直流电网的预限流型直流断路器拓扑，当电网出现过电流时预先将限流回路投入，并根据故障检测结果决定切除故障线路或恢复正常运行。该拓扑使用辅助电容和半控型器件晶闸管实现了限流电感的快速投切与故障电流快速切除，能有效抑制故障电流，并具备一定的经济性。为验证所提拓扑在预限流和快速分断方面的可行性，在PSCAD/EMTDC中搭建了四端直流电网仿真模型，并通过仿真结果验证了所提拓扑在抑制故障电流、隔离故障线路方面的有效性。

Abstract

To improve the operation reliability of multi-terminal DC grid with DC faults and reduce the interrupting capability requirements of DC circuit breakers

this paper proposes a topology of DC circuit breaker with pre-current-limiting capability for DC grid. In the proposed topology

the current-limiting circuit can be put into operation in advance when the overcurrent appears in the grid

and it can be decided to interrupt the fault current or recover to normal operation according to the fault detection results. This topology adopts auxiliary capacitor and half-controlling device thyristor to achieve the fast switching of current-limiting inductor and the fast interruption of fault current

which can effectively limit the fault current and has certain economy. To verify the feasibility of the proposed topology in terms of pre-current-limiting and fast interrupting

a simulation model of four-terminal DC grid is built in PSCAD/EMTDC. Simulation results verifies the effectiveness of the proposed topology in limiting fault current and isolating faulty lines.

关键词

Keywords

references

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