分布式光伏发电对配电网电压的影响及电压越限的解决方案.pdf

第 34 卷 第 10 期 电 网 技 术 Vol. 34 No. 10 2010 年 10 月 Power System Technology Oct. 2010 文章编号：1000-3673 （2010 ）10-0140-07 中图分类号：TM 615 ；TM 711 文献标志码：A 学科代码：470·4051 分布式光伏发电对配电网电压的影响及 电压越限的解决方案 许晓艳，黄越辉，刘纯，王伟胜 （中国电力科学研究院，北京市海淀区 100192 ） Influence of Distributed Photovoltaic Generation on Voltage in Distribution Network and Solution of Voltage Beyond Limits XU Xiaoyan, HUANG Yuehui, LIU Chun, WANG Weisheng (China Electric Power Research Institute, Haidian District, Beijing 100192, China) ABSTRACT: From the viewpoint of voltage drop in power 通过算例验证了上述分析的正确性，并提出了解决分布式光 network, the voltage variation mechanism of distribution 伏发电引起电压越限的措施和方案，包括电抗器补偿、线路 network before and after the connection of photovoltaic (PV) 中央控制和逆变器无功控制结合、安装储能装置等。 generation to distribution network is researched. The influences 关键词：光伏发电；配电网；电压越限；无功补偿；储能装置 of connecting single PV generation and multi PV generation to distribution network on voltage of distribution network are 0 引言 analyzed respectively, and the obtained conclusions are as following: connecting PV generation to distribution network 随着气候变暖、能源危机问题的日益突出，可 makes line voltage of distribution network arisen, and the 再生能源已成为发展趋势，其中太阳能光伏发电是 voltage variation at a certain position directly relates to the sum 可再生能源利用的重要形式[1-2] 。根据容量不同，太 of all loads subsequent to this position and the output of PV 阳能光伏发电分为2 种并网形式：一是通过中高压 generation. The factor influencing voltage variatio