Research on influencing factors to key parameters of hybrid DC circuit breaker and prototype development

LUO Wenguang; YI Kang; ZOU Yangju; LIU Shaoqi; WANG Kangyu

doi:10.13890/j.issn.1000-128X.2022.03.018

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Research on influencing factors to key parameters of hybrid DC circuit breaker and prototype development

Energy-saving Technology and Application | 更新时间：2024-08-02

- Research on influencing factors to key parameters of hybrid DC circuit breaker and prototype development
- Electric drive for locomotives Issue 3, Pages: 138-147(2022)
- 作者机构：
  
  中车株洲电力机车研究所有限公司，湖南株洲　412001
- 作者简介：
- 基金信息：
- DOI：10.13890/j.issn.1000-128X.2022.03.018
  CLC： U231;U264.7
- Published：10 May 2022，
  
  Received：26 April 2022，
- 稿件说明：
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LUO Wenguang, YI Kang, ZOU Yangju, et al. Research on influencing factors to key parameters of hybrid DC circuit breaker and prototype development. [J]. Electric drive for locomotives (3):138-147(2022)
DOI：

LUO Wenguang, YI Kang, ZOU Yangju, et al. Research on influencing factors to key parameters of hybrid DC circuit breaker and prototype development. [J]. Electric drive for locomotives (3):138-147(2022) DOI： 10.13890/j.issn.1000-128X.2022.03.018.

摘要

混合式直流断路器作为直流系统的核心保护装备，其关键参数是制约产品设计和应用的首要前提，而关键参数的影响因素研究对于系统和设备之间的匹配设计及适应性运行具有重要意义。文章首先提取了混合式直流断路器开断电流、开断过电压及能量吸收等核心关键参数，并分别从系统运行和装置设计层面对影响关键参数设计的主要因素进行了分析；然后搭建了混合式直流断路器及牵引供电系统等效模型，并对各个影响因素进行了仿真验证；最后，根据关键参数设计要求，成功研制了轨道交通地铁车辆工程应用的1.8 kV/1 kA混合式直流断路器样机，并开展了大量试验验证。结果表明，综合考虑各影响因素的多参数优化断路器样机可满足直流应用系统对快速开断能力的要求，且相较于既有机械式直流断路器具有明显优势。

Abstract

A hybrid DC circuit breaker is the core protection equipment of a DC system

and its key parameters are critical to the products design and application

so the research on the influencing factors to such key parameters is of great significance to the matching design and adaptive operation between the system and equipment. In the current study

the key parameters such as breaking current

breaking overvoltage and energy absorption were extracted first

and the main factors affecting the design of the key parameters were analyzed in detail at the system operation level and equipment design level. Secondly

the equivalent models of the hybrid DC circuit breaker and traction power supply system were created

and the influencing factors were verified by simulation. Finally

according to the design requirements of key parameters

the first prototype of 1.8 kV/1 kA hybrid DC circuit breaker was successfully developed for the engineering application on the rail transit and metro vehicles

and a large number of experiments were carried out. The results show that the circuit breaker prototype with optimized parameters in consideration of various influencing factors can meet the DC application system requirements for the fast breaking capacity

and demonstrate its obvious advantages over the existing mechanical DC circuit breakers.

关键词

轨道交通混合式直流断路器关键参数影响因素样机研制仿真地铁车辆

Keywords

rail transithybrid DC circuit breakerkey parameterinfluencing factorsprototype developmentsimulationmetro vehicle

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