| 高压直流工程直流转换开关分析与仿 |
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| 引用本文： | 厉天威,王浩,项阳,黎小林,赵宇明. 高压直流工程直流转换开关分析与仿[J]. 南方电网技术, 2014, 8(4): 33-36 |
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| 作者姓名： | 厉天威 王浩 项阳 黎小林 赵宇明 |
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| 作者单位： | 南方电网科学研究院，广州510080;西安西电电力系统公司，西安 710075;南方电网科学研究院，广州510080;南方电网科学研究院，广州510080;南方电网科学研究院，广州510080 |
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| 摘 要： | 从理论上分析了直流转换开关的开断电流特点。考虑直流开断电流和输电线路参数,分别建立金属回路转换开关（metallic return transfer breaker,MRTB）、大地回路转换开关（ground return transfer switch,GRTS）和中性母线开关（neutral bus switch,NBS）等直流转换开关在各运行工况下的仿真模型,对以上3类开关直流电流转换过程进行计算分析。结果显示,各开关开断2次电流时,避雷器吸收能量分别为10.9 MJ、4.4 MJ和4.2 MJ。可据此来合理配置避雷器参数和数量,保证系统安全可靠运行。
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| 关 键 词： | 转换直流开关 金属回路转换开关 大地回路转换开关 中性母线开关 |
Analysis and Simulation of HVDC Project DC Current Transfer Switch |
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| LI Tianwei,WANG Hao,XIANG Yang,LI Xiaolin and ZHAO Yuming. Analysis and Simulation of HVDC Project DC Current Transfer Switch[J]. Southern Power System Technology, 2014, 8(4): 33-36 |
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| Authors: | LI Tianwei WANG Hao XIANG Yang LI Xiaolin ZHAO Yuming |
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| Affiliation: | LI Tianwei,WANG Hao,XIANG Yang,LI Xiaolin,ZHAO Yuming (1. Electric Power Research Institute, CSG, Guangzhou 510080, China; 2. Xi＇an XD Power Systems Co. , Ltd. , Xi＇an 710075, China) |
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| Abstract: | The DC transfer switch＇s switching current feature is theoretically analyzed. Considering DC switching current and transmission line parameters,the simulation model for metallic return transfer breaker（ MRTB）,ground return transfer switch（ GRTS）and neutral bus switch（ NBS） are built in some operating conditions. The analysis is carried out on current switching process for the three models. Results show that while undergoing two current switchings,energy absorbed by the arresters are 10. 9 MJ,4. 4 MJ,and4. 2 MJ. These can be a reference in deploying the parameters and numbers of the arrester to assure the reliable operation of the system. |
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| Keywords: | high speed DC switch MRTB GRTS NBS |
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