| 分布式光伏发电对配电网保护的影响 |
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| 引用本文： | 翟文杰,李建泉,吴小云,管仁德,崔坚.分布式光伏发电对配电网保护的影响[J].变流技术与电力牵引,2013(5):21-26. |
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| 作者姓名： | 翟文杰 李建泉 吴小云 管仁德 崔坚 |
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| 作者单位： | 南车株洲电力机车研究所有限公司,湖南株洲412001 |
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| 摘 要： | 分布式光伏发电接入配电网将影响馈线保护的灵敏性和选择性。文章研究了分布式光伏发电接入配电网后的保护方案,给出了不同情况下对短路电流产生助增或削减作用的理论分析方法。基于放射式配电网络、恒阻抗负荷模型,并将故障下的分布式光伏发电等效为受控电流源,进行了分布式光伏发电对配电网短路电流影响的仿真,仿真结果验证了理论分析的正确性。
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| 关 键 词： | 分布式光伏发电 配电网 继电保护 |
Impact of Distributed Photovoltaic Generation on Relay in Distribution Network |
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| ZHAI Wen-jie,LI Jian-quan,WU Xiao-yun,GUAN Ren-de,CUI Jian.Impact of Distributed Photovoltaic Generation on Relay in Distribution Network[J].Converter Technology & Electric Traction,2013(5):21-26. |
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| Authors: | ZHAI Wen-jie LI Jian-quan WU Xiao-yun GUAN Ren-de CUI Jian |
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| Institution: | (CSR Zhuzhou Institute Co., Ltd., Zhuzhou, Hunan 412001,China) |
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| Abstract: | Sensitivity and selectivity of relay protection are influenced by distribution network grid-connected distributed photovoltaic generation. Therefore, a protective approach was studied in response to this problem and then a theoretical analysis method was provided for increasing or reducing fault current under different situations. Based on radial distribution network and constant impedance load model, taking distributed photovoltaic generation as a controlled current source, the impact of fault current of distributed photovoltaic generation on distribution network was simulated and then the correctness of the theoretical analysis was verified. |
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| Keywords: | distributed photovoltalc generation distribution network relay protection |
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