组串式并网逆变器运行性能研究  

Operational Performance Analysisof Grid-Connected PV String-Type Inverter

作　　者：黄静[1] 刘江峰[1] 赵志强[1] 余振 齐志伟[1] 陈富东[2] HUANG Jing;LIU Jiangfeng;ZHAO Zhiqiang;YU Zhen;QI Zhiwei;CHEN Fudong(Energy-Saving Building Materials Innovative Collaboration Center of Henan Province, Xinyang Normal University,Xinyang 464000,China;College of Mechanical and Electrical Engineering,Hehai University,Changzhou 213022,China)

机构地区：[1]信阳师范学院建筑节能材料河南省协同创新中心,河南信阳464000 [2]河海大学机电工程学院,江苏常州213022

出　　处：《信阳师范学院学报（自然科学版）》2018年第4期650-656,共7页Journal of Xinyang Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(11604279);河南省科技计划项目(172102410070);河南省高等学校重点科研项目(18B470009和15A413017)

摘　　要：结合信阳地区10 k W光伏试验电站,对监控系统采集的历史数据进行整理,分析四种天气类型下辐照度对逆变器日发电量的影响和晴天情况下环境温度对逆变器日发电量的影响.针对信阳地区的光照资源分布情况,对逆变器的全年运行数据进行分析统计,按照7个功率点分析出对应的权重系数及逆变器效率,根据效率加权公式,计算逆变器的"信阳效率",并提出一种提高信阳地区逆变器发电量的方法.最后使用Fluke435-II电能质量分析仪对两台逆变器交流并网侧进行监测,对检测结果进行详细的对比分析.Combined with 10 kW photovoltaic test station in Xinyang area,the historical data collected by monitoring system is organized,the effect of irradiance on daily power generation of inverters were analyzed under four-type weather,and the influence of ambient temperature on inverter power generation was analyzed on clear days.For the distribution of light resources in Xinyang,the annual operation data of the inverter was analyzed and counted,and the corresponding weight coefficients and inverter efficiency were analyzed with seven power points.According to the efficiency weighting formula,“Xinyang efficiency”was calculated,and a method is proposed to improve inverter power generation in Xinyang area.Finally,Fluke435-II power quality analyzer was used to monitor the AC grid-connected sides of two inverters,and the test results were compared and analyzed in detail.

关 键 词：辐照度 温度 效率 信阳效率 电能质量 

分 类 号：TM464[电气工程—电器]