集中式与组串式逆变器在光伏电站的应用分析  

Application analysis of centralized inverter and string inverter in photovoltaic power station

作　　者：贺霞[1] 张敏 朱永灿[1] 王一各 HE Xia;ZHANG Min;ZHU Yongcan;WANG Yige(School of Electronics and Information,Xi′an Polytechnic University,Xi′an 710048,China;Shaanxi Yulin Energy Group Hengshan Coal ＆ Electricity Co Ltd,Yulin 719199,Shaanxi,China)

机构地区：[1]西安工程大学电子信息学院,陕西西安710048 [2]陕西榆林能源集团横山煤电有限公司,陕西榆林719199

出　　处：《西安工程大学学报》2018年第4期443-448,共6页Journal of Xi’an Polytechnic University

基　　金：国家自然科学基金(51177115);西安工程大学博士科研启动基金(BS1703);陕西省教育厅专项科研计划项目(17JK0322)

摘　　要：逆变器作为并网光伏电站关键设备之一,其性能直接影响整个并网光伏电站的发电效益.针对大型光伏电站投资成本和发电效益的问题,对集中式逆变器和组串式逆变器的优缺点进行分析,并通过工程实例分析了大型光伏电站中集中式逆变器和组串式逆变器的应用,比较了2种逆变器的投资成本、发电效益和运维情况.结果显示,大型光伏电站中采用组串式逆变器可以提高发电效益,降低投资成本.Inverter is one of the key equipment in PV power plants, and its performance directly affects the power generation benefit of the whole grid photovoltaic power station. For the investment cost and generation benefit of large photovoltaic power station, the advantages and disadvantages of the centralized inverter and the string inverter are analyzed. And then, some applications are analyzed, such as the investment cost, generation benefit and operation condition. The results show that the string inverter can improve the efficiency of power generation and reduce the cost of investment.

关 键 词：光伏电站 集中式逆变器 组串式逆变器 发电效益 

分 类 号：TM726.1[电气工程—电力系统及自动化]