典型并网光伏电站的等值建模研究及应用  

Equivalent Modeling Research and Application of Typical Grid Connected Photovoltaic Power Station

作　　者：李春来[1] 王晶[2] 杨立滨[1] 

机构地区：[1]国网青海省电力公司电力科学研究院,西宁市810008 [2]东北电力大学自动化工程学院,吉林市132000

出　　处：《电力建设》2015年第8期114-121,共8页Electric Power Construction

基　　金：国家科技支撑计划项目(2013BAA02B01)~~

摘　　要：在不同扰动情况下,光伏发电系统的暂态控制策略不同,即使对于同一故障扰动,由于光伏电站存在多种类型逆变器,其控制参数也不尽相同。为明确大规模光伏电站暂态特性,同时避免对每种逆变器都建立详细模型,需要建立扰动情况下的光伏电站等值模型。采用倍乘方法建立了光伏方阵群的等值模型以及光伏逆变器群的等值模型,通过采用青海省海西地区的并网光伏发电站的实测数据进行的仿真验证及误差分析,由仿真结果可知,所提出的光伏逆变器群的等值建模方法和数学模型是有效的。Due to different disturbance conditions, the transient control strategy of photovoltaic power generation system is different, even for the same fault disturbance, because there are many types of inverters in photovoltaic power station and there control parameters are also different. In order to study the transient characteristics of large-scale photovoltaic power station, and avoid constructing detailed model for every kind of inverter, the equivalent model of photovoltaic power station needed to be established under disturbance. The equivalent models of photovoltaic phalanx group and photovoltaic inverter group were set up by using multiplier method. Through using the test data of photovoltaic power station simulation in Qinghai Haixi, the simulation validation and error analysis show that the proposed equivalent modeling method and mathematical model for photovoltaic inverter group are valid.

关 键 词：并网光伏电站 逆变器 等值建模 仿真 

分 类 号：TM615[电气工程—电力系统及自动化]