关于接入企业内网的分布式光伏电站对功率因数的影响分析  

Impact Analysis for Power Factor When Distributed PV Power Station Connecting to Internal Electric Power Grid in Enterprise

作　　者：杨正刚[1] 于哲[1] 陈维 赵凤阁 栗娜 

机构地区：[1]常州天合光能有限公司系统事业部 [2]江苏省分布式光伏及应用工程中心

出　　处：《电子世界》2016年第17期60-62,共3页Electronics World

基　　金：工信部电子信息产业发展基金资助项目(财建[2014]513号;工信部财[2014]425号);分布式光伏系统大规模集成应用研究项目

摘　　要：为解决分布式光伏电站接入企业内网而导致企业关口计量点功率因数降低的问题,采用理论分析和长期实际系统运行数据统计研究,提出解决方向。比对多种类型无功补偿方案,综合考虑性价比和可操作性,选择采用具有抗谐波功能的低压无功补偿设备。方案实施并对改造后的系统运行数据进行统计分析。研究结果表明,在企业低压侧母线接入384k Var具有抗谐波功能的低压无功补偿设备,企业关口计量点功率因数能达到0.9以上,从而避免了供电公司对企业的罚款,对促进分布式光伏发电应用具有现实意义。To solve the problem of power factor reduction at gateway when distributed photovoltaic（PV）power station connecting to enterprise internal electric grid, using theoretical analysis and actual system operation data statistics research for a long time, puts forward the direction.Compared various types of reactive power compensation method, based on comprehensive consideration of cost performance and operability, choose to adopt- with the low voltage reactive power compensation device with elimination harmonic function.Implementing and statistically analyzing the operation data.The research results show that when the low voltage reactive power compensation device of elimination harmonic function with 480 kVar, power factor at gateway can reach above 0.9, fines for enterprises, so as to avoid the penalty by electric power supply company.All these have practical significance for promoting distributed photovoltaic applications.

关 键 词：分布式光伏电站 关口计量点 功率因数 抗谐波 无功补偿 

分 类 号：TM615[电气工程—电力系统及自动化]