纯新能源外送通道电源配置方案研究  

Research on Power Configuration Scheme for Pure New Energy Transmission Channel

作　　者：李富春 杨攀峰 王亮 邵成成[3] 李江帅 党楠 陈思柔 LI Fuchun;YANG Panfeng;WANG Liang;SHAO Chengcheng;LI Jiangshuai;DANG Nan;CHEN Sirou(Northwest Electric Power Design Institute Co.,Ltd.,China Power Engineering Consulting Group,Xi’an 710075,China;China Energy Engineering Group Planning and Engineering Co.,Ltd.,Beijing 100032,China;School of Electrical Engineering,Xi’an Jiaotong University,Xi’an 710000,China)

机构地区：[1]中国电力工程顾问集团西北电力设计院有限公司,西安710075 [2]中国电力工程顾问集团有限公司,北京100032 [3]西安交通大学电气工程学院,西安710000

出　　处：《油气与新能源》2024年第5期28-36,共9页Petroleum and new energy

基　　金：国家自然科学基金项目“面向再电气化的大规模可控负荷均衡分析与调控理论研究”(52177113)。

摘　　要：随着沙漠、戈壁、荒地大型风光基地实施,外送通道以煤电为主的支撑电源比例逐步降低,再加上柔性直流示范工程不断积累经验,新能源基地大规模外送采用特高压柔直技术送电成为可能。首先基于新能源出力互补特性,考虑直流合理利用小时数和弃电率指标,以综合电价最低为目标研究风光配比;然后对比不同类型储能技术经济差异,并考虑受端顶峰研究储能配置容量和类型;最后综合多种评价指标,进行全方位比选,确定推荐电源方案。西北某新能源外送基地算例表明,风光合理配比可提高通道利用小时数,减少储能电源配置,降低新能源弃电率,提高直流送电经济性。因此,纯新能源外送通道具备可行性。With the implementation of large-scale wind and solar power bases in deserts,Gobi,and wastelands in China,the proportion of coal-fired power as the main supporting power source for external transmission channels is gradually decreasing.In addition,with the continuous accumulation of experience in flexible DC demonstration projects,it has become possible for new energy bases to use ultra-high voltage flexible DC technology for large-scale external transmission of electricity.This paper studies the wind solar ratio firstly based on the complementary characteristics of new energy output,considering the indicators of DC reasonable utilization hours and abandonment rate,with the goal of minimizing the comprehensive electricity price,compares the technical-economic differences of different types of energy storage technologies secondly,considers the need to study the capacity and types of energy storage configurations at the peak of the receiving end thirdly,and determines the recommended power supply solution finally by integrating multiple evaluation indicators and taking a comprehensive comparison.A case study of a new energy transmission base in northwest China shows that a reasonable ratio of wind and solar power can increase the utilization hours of the channel,reduce the configuration of energy storage sources,lower the rate of new energy abandonment,improve the economy of DC power transmission,and testify the feasibility of pure new energy transmission channels.

关 键 词：风光配比 储能 直流利用小时数 综合电价 评价指标 

分 类 号：TM61[电气工程—电力系统及自动化]