光伏电站接入系统方案分析.pdfVIP

学兔兔 电测与仪表 VO1．53 N0．1 第53卷 第1期 2016年 1月1O墨 Electrical Measurement Instrumentaflon Jan．10-2016 光伏电站接入系统方案分析木 曾祥军，李凤婷 (新疆大学可再生能源发电与并网技术教育部工程研究中心，鸟鲁木齐830047) 摘要：光伏发电作为清洁无污染的可再生能源，其发展正受到人们越来越多的关注。光伏电站因其出力的随机 性，对电网电能质量产生一定影响。文章以哈密地区某60 MWp光伏电站为例，提出两种不同接入系统方案。 利用PSASP软件进行仿真分析，分别讨论两种不同接入方案并网后，光伏电站在电网最大和最小运行方式下 对电网的潮流分布和短路电流的影响，结合经济性比较提出合理的接人方案，并提出改善电能质量的建议。 关键词：光伏发电；并网；潮流；经济性 中图分类号：TM711 文献标识码：B 文章编号：1001—1390(2016)01—0084—06 Analysis on the scheme of a PV plant connected to grid system Zeng Xiangjun，Li Fengting (Renewable Power Generation and Grid Connection Techniques Engineering Research Center of the Ministry of Education，Xinjiang University，Urumchi 830047，China) Abstract：Photovoltaic power generation as a clean and pollution-free renewable energy，its development attracts more and more attentions of people．Due to the randomness of photovoltaic plant，it would have an effect on the quality of power supply when it is connected to grid．This paper comes up with two different plans about the 60 MWp photovolta- ic power plants connected to region d in some area of Hami．By using PSASP simulation software，it analyzes two different access schemes under the condition of minimum and maximum mode of operation，and discusses the load flow and short circuit current influence when it is connected to d，combining with the economical comparison，a reasona— ble access scheme is put forward，as well as the suggestion to improve the power quality． Keywords：photovoltaic power generation，grid connection，load flow，economy 0 引 言 并提高逆变器的转换效率；如何减