Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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光伏电站设计中集中式与组串式逆变器的比较选择

来源:电工电气发布时间:2017-04-21 14:21 浏览次数:3
光伏电站设计中集中式与组串式逆变器的比较选择
 
谢洁宇,王海华,常城,张曼
(中国能源建设集团江苏省电力设计院有限公司,江苏 南京 211102)
 
    摘 要:光伏电站工程设计中,选择不同类型的逆变器,对于提高系统可靠性、减少系统损耗、降低系统成本意义重大。介绍了当前常用的集中式、组串式两种逆变器的结构及特点,从发电效率、建设成本、系统可靠性三个方面对两种逆变器进行综合比较,并将各方因素转化到经济层面进行定量对比。综合比较结果,运行年限在2 年及以上的光伏项目采用组串式逆变器方案更有优势。
    关键词:集中式逆变器;组串式逆变器;发电效率
    中图分类号:TM464     文献标识码:A     文章编号:1007-3175(2017)04-0017-04
 
Comparison Selection of Centralized Inverter and String Inverter in Photovoltaic Power Station Design
 
XIE Jie-yu, WANG Hai-hua, CHANG Cheng, ZHANG Man
(China Energy Engineering Jiangsu Power Design Institute Co., Ltd, Nanjing 2111 02, China)
 
    Abstract: In the design of photovoltaic power station, the selection of different types of inverters is very important to improve the system reliability, to reduce the system losses and to lower the system cost. Introduction was made to the structure and characteristic of common, centralized and string inverters. This paper carried out the comprehensive comparison for the two inverters from the three respects of generating efficiency, construction cost and system reliability and changed each side elements into the economic level to carry out quantitative comparison. The comprehensive comparison result shows that the photovoltaic project, operating more than two years and adopting the string inverter, is superior to other projects.
    Key words: centralized inverter; string inverter; power generation efficiency
 
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