| 基于大规模风、光并网外送需求的高压直流混合式直流断路器研究 |
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| 引用本文： | 杨勇,王文杰,刘亚萍,谢晔源,杨兵,陈羽. 基于大规模风、光并网外送需求的高压直流混合式直流断路器研究[J]. 可再生能源, 2021, 39(2) |
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| 作者姓名： | 杨勇 王文杰 刘亚萍 谢晔源 杨兵 陈羽 |
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| 作者单位： | 国网经济技术研究院有限公司, 北京 102199;南京南瑞继保电气有限公司, 江苏 南京 211102 |
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| 基金项目： | 国网经研院项目资助(ZZKJ-2019-16)。 |
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| 摘 要： | 全控型器件的直流断路器作为风电、光伏直流外送通道的关键设备,存在成本高、耐短路电流能力差等问题。文章提出了一种基于晶闸管和IGBT全桥子模块串联的新型混合直流断路器拓扑结构,其固态部分由大量晶闸管和少量IGBT全桥子模块串联构成,降低了器件成本和送出通道建设成本,同时借助全桥子模块,晶闸管可以在反向电压的作用下快速关断。最后仿真验证了新型直流断路器的分断性能。
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| 关 键 词： | 直流外送 混合式高压直流断路器 晶闸管 IGBT全桥模块 |
Hybrid HVDC breaker for HVDC based wind and photovoltaic power integration system |
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| Yang Yong,Wang Wenjie,Liu Yaping,Xie Yeyuan,Yang Bing,Chen Yu. Hybrid HVDC breaker for HVDC based wind and photovoltaic power integration system[J]. Renewable Energy(China), 2021, 39(2) |
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| Authors: | Yang Yong Wang Wenjie Liu Yaping Xie Yeyuan Yang Bing Chen Yu |
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| Affiliation: | (State Grid Economic and Technical Research Institute Company,Beijing 102199,China;Nanjing Nanrui Jibao Electric Company,Nanjing 211102,China) |
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| Abstract: | Hybrid HVDC breaker is one of the key equipment in HVDC system for long-distance new energy power transmission.High cost and poor short-circuit current withstand ability are two major drawbacks of the existing hybrid DC circuit breaker based on full control devices.This paper presents a hybrid DC circuit breaker topology based on the series connection of thyristor and full-bridge IGBT modules.Its solid-state part consists of many thyristors and a small number of IGBT bridges,which greatly saves the device cost.With the help of the full bridge sub module,the thyristor can be turned off quickly,so the breaking speed of the proposed breaker is fast.The topological structure,working principle and optimization design method of the proposed scheme are described in detail,and the feasibility of the proposed circuit breaker is verified by simulation. |
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| Keywords: | DC transmission hybrid HVDC breaker thyristor full-bridge IGBT modules |
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