| 引用本文: | 艾琳,冯艳虹,陈为化,张道农,郑兰.特高压接入京津冀北500 kV电网短路电流问题及限流措施研究[J].电力系统保护与控制,2017,45(9):133-137.[点击复制] |
| AI Lin,FENG Yanhong,CHEN Weihua,ZHANG Daonong,ZHENG Lan.Research on short-circuit current problem and limiting measures caused by UHV substation connecting to 500 kV network in Beijing-Tianjin Area and Northern Hebei[J].Power System Protection and Control,2017,45(9):133-137[点击复制] |
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| 摘要: |
| 随着主干网架不断加强，尤其是特高压变电站的接入，京津及冀北电网500 kV短路电流日益攀升。针对特高压变电站接入引起的500 kV短路电流超标问题，采用短路点自阻抗模型分析特高压站及周边500 kV站的500 kV短路电流构成要素及超标机理，进而根据影响短路电流的主要因素选取有效的限流措施。最后通过对实际电网的短路电流计算分析进行了论证。 |
| 关键词: 特高压 短路电流 限流措施 接入电网 |
| DOI：10.7667/PSPC160631 |
| 投稿时间：2016-05-03修订日期：2016-06-22 |
| 基金项目: |
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| Research on short-circuit current problem and limiting measures caused by UHV substation connecting to 500 kV network in Beijing-Tianjin Area and Northern Hebei |
| AI Lin,FENG Yanhong,CHEN Weihua,ZHANG Daonong,ZHENG Lan |
| (North China Power Engineering Co., Ltd, Beijing 100120, China;China Energy Equipment Co., Ltd, Beijing 100044, China) |
| Abstract: |
| Along with the development of network, especially the connecting of UHV substations, the short-circuit current in 500 kV network increases prominently in Beijing-Tianjin and Northern Hebei Area. In this paper, short-circuit current problems of 500 kV network caused by connection of UHV substation in Beijing-Tianjin and Northern Hebei Area are studied. The self-impedance models are used to analyze the short-circuit current’s constructions and mechanism in 1000 kV and 500 kV substations. On the basis of analyzing the main affecting factors for short-circuit current, the suitable limiting measures are proposed. Finally the conclusions are proved by the calculation and analysis in actual power system. |
| Key words: ultra-high voltage short-circuit current limiting measure connection to network |
