期刊文献+

多端口直流断路器研究综述 被引量:25

A Review of Research on Multi-port DC Circuit Breaker
下载PDF
导出
摘要 相对于交流电网,柔性直流电网的低阻抗特性对故障电流的抑制和清除提出更高的要求,采用直流断路器能够很好地解决清除直流故障时快速性和稳定性的问题。但是,随着柔性直流电网规模的扩大,直流母线上连接的线路也不断增多。单一直流母线通常连接有多条线路,如果每条线路均配置直流断路器将产生占地面积大、建设成本高昂等问题。对此,一系列的多端口直流断路器被提出,通过同一直流母线上所有进出线共用昂贵的主断开关来实现故障电流的开断,以减少直流电网中直流断路器的数量和投资成本。该文针对当前国内外提出的多端口直流断路器拓扑进行归纳总结分类,论述各个类别多端口直流断路器的工作原理、优点以及面临的主要问题。最后,对多端口直流断路器的发展进行展望。 Compared with the alternative current(AC) grid, the low impedance characteristic of the flexible direct current(DC) grid puts forward higher requirements for the suppression and interruption of fault current. The use of DC circuit breakers(DCCBs) can solve the problem rapidly and stably when clearing DC-side faults. However, with the expansion of the scale of the flexible DC grid, the number of parallel lines connected to DC buses has also increased. A single DC bus is usually connected to multiple lines. If each line is equipped with a DCCB, it will cause problems such as large footprint and high investment cost. In this regard, a series of multi-port DCCBs have been proposed. All incoming and outgoing lines on the same DC bus shared an expensive main breaker to achieve fault interruption to reduce the number of DCCBs and investment costs in the DC grid. This paper summarized and classified the topologies of the multi-port DCCB currently proposed at home and abroad, and discussed the operation principles, advantages, and main problems of multi-port DCCBs in various categories. Finally, the basic requirements of the future DC grid for multiport DCCB were summarized. Besides, the possible future development direction and related problems of the multi-port DCCB were proposed.
作者 张烁 邹贵彬 魏秀燕 张成泉 ZHANG Shuo;ZOU Guibin;WEI Xiuyan;ZHANG Chengquan(School of Electrical Engineering,Shandong University,Jinan 250061,Shandong Province,China)
出处 《中国电机工程学报》 EI CSCD 北大核心 2021年第13期4502-4515,共14页 Proceedings of the CSEE
基金 国家自然科学基金项目(52077124,51677109)。
关键词 直流电网 多端口直流断路器 经济性 故障电流分断 多功能 HVDC grid multi-port DC circuit breaker economy fault current interruption multi-function
  • 相关文献

参考文献29

二级参考文献268

共引文献610

同被引文献366

引证文献25

二级引证文献55

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部