| 分布式电源并网对配电网电流保护影响的研究 |
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| 引用本文： | 田书,刘颖,梅小丽.分布式电源并网对配电网电流保护影响的研究[J].工矿自动化,2011,37(10):39-43. |
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| 作者姓名： | 田书 刘颖 梅小丽 |
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| 作者单位： | 1. 河南理工大学电气工程与自动化学院,河南焦作,454003
2. 郑州供电公司变电运行三部,河南郑州,450000 |
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| 摘 要： | 分析了分布式电源并网对传统的配电网电流保护的影响,采用Matlab/Simulink仿真软件验证了分布式电源容量不同、并网位置不同对配电网各段电流保护的影响,提出了一种能够满足分布式电源并网后配电网保护要求的改进方案。该改进方案实现原理:对于分布式电源下游的保护,将供电系统电源和分布式电源作为一个整体,重新整定各段电流保护的整定值;对于分布式电源上游的保护,需在各保护装置上安装一个基于故障电流分量的方向元件,只有当保护中的过流元件和方向元件同时启动时,保护才能够可靠动作。
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| 关 键 词： | 分布式电源并网 并网影响 配电网结构 电流保护 短路电流 |
Research of Influence of Grid Connection of Distributed Generation on Current Protection of Distribution Network |
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| TIAN Shu,LIU Ying,MEI Xiao-li.Research of Influence of Grid Connection of Distributed Generation on Current Protection of Distribution Network[J].Industry and Automation,2011,37(10):39-43. |
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| Authors: | TIAN Shu LIU Ying MEI Xiao-li |
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| Affiliation: | TIAN Shu1,LIU Ying1,MEI Xiao-li2(1.School of Electrical Engineering and Automation of Henan Polytechnic University,Jiaozuo 454003,China.2.The Third Department of Substation Operation of Zhengzhou Power Supply Company,Zhengzhou 450000,China) |
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| Abstract: | The paper analyzed influence of grid connection of distributed generation on traditional current protection of distribution network,used Matlab/Simulink simulation software to prove influence of different capacities and grid connected positions of distributed generation on each section of current protection of distribution network,and proposed an improved scheme which can meet with protection requirement of distribution network after grid connection of distributed generation.The implementing principle of th... |
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| Keywords: | grid connection of distributed generation influence of grid connection structure of distribution network current protection short-circuit current |
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