基于Digsilent的光伏电源并网对系统电压的影响  

The Influence of Photovoltaic Incorporating into Distribution Network on System Voltage

作　　者：谷彩连[1] 

机构地区：[1]沈阳工程学院电气工程系,沈阳110136

出　　处：《电脑开发与应用》2013年第3期42-44,48,共4页Computer Development & Applications

基　　金：沈阳工程学院创新团队项目(20120430)

摘　　要：光伏电源并网后,配电网络由单电源放射状的网络变为多电源有源网络,馈电线路有功功率流向发生变化,各个节点电压也将受到影响。对光伏电源并网对系统影响展开全面的讨论,重点研究光伏电源注入位置和注入容量对电压水平的影响,并利用德国电力系统仿真软件Digsilent建立115节点的仿真模型,研究结果表明,在馈电线路上,同一位置光伏电源有功出力越高,电压水平越高,光伏电源接入位置距离母线越远,允许的注入功率值越小。The distribution network becomes a multi-power active network from a single supply radial network when photovohaic incorporates into power grid, active power flow of the feed line changes a lot, each node voltage will also be affected. A thorough discussion of the photovohaic impact on power grid is undertaken, focus on the effect of voltage level injection location and injection capacity of photovohaic power supply, and the simulation model of the 115 nodes is established by the German power system the simulation software Digsilent, the study results show that, in the feed lines, the same location the number of active output is higher, the voltage is higher ;the distance between photovoltaic and bus bar is futher, the capacity allowed is more smaller.

关 键 词：光伏电源 注入功率 Digsilent建模 馈电线路 

分 类 号：TP391.92[自动化与计算机技术—计算机应用技术]