大型光伏电站全直流送出关键问题研究
RESEARCH ON KEY ISSUES OF FULL DC TRANSMISSION SCHEME FOR LARGE-SCALE PHOTOVOLTAIC POWER STATIONS
徐政 1徐文哲 1郭瀚临 1华文 2裘鹏 3张哲任1
作者信息
- 1. 浙江大学电气工程学院,杭州 310027
- 2. 国网浙江省电力有限公司电力科学研究院,杭州 310014
- 3. 浙江大学电气工程学院,杭州 310027;国网浙江省电力有限公司电力科学研究院,杭州 310014
- 折叠
摘要
研究浙江舟山地区小洋山薄刀咀118 MW光伏电站全直流送出方案.介绍全直流送出系统的构建原理,重点阐述拓扑结构选择、接地方式、直流电压控制等关键技术问题.明确多级直流升压系统的构建原理.在PSCAD/EMTDC平台上搭建相应仿真系统,通过时域仿真验证所提小洋山薄刀咀118 MW光伏电站全直流送出方案的可行性.
Abstract
This paper studies the full DC transmission scheme of 118 MWp photovoltaic power station in Xiaoyangshan Bodaozui island of Zhoushan,Zhejiang Province.The construction principle of the full DC transmission system is introduced,and the key technical issues such as the topology selection,the grounding method,and the DC voltage control are clarified.The composition principle of DC-DC converters at all levels is specified.A corresponding simulation system is built on the PSCAD/EMTDC platform and the time-domain simulation verifies the feasibility of the proposed full DC transmission scheme of 118 MWp photovoltaic power station in Xiaoyangshan Bodaozui island.
关键词
光伏发电/高压直流输电/直流变压器/接地方式/直流电压控制Key words
photovoltaic power/high voltage DC transmission/DC-DC converters/grounding method/DC voltage control引用本文复制引用
出版年
2024
NETL
NSTL
万方数据