农村住宅建筑光储直柔系统性能研究
Performance Investigation of PEDF System Applied in Rural Areas
王朝亮 1肖涛 1李少杰 2张吉2
作者信息
- 1. 国网浙江省电力有限公司营销服务中心,浙江杭州 311100
- 2. 清华大学建筑学院建筑节能研究中心,北京 100084
- 折叠
摘要
"光储直柔"(PEDF)建筑新型配电系统是助力实现"双碳"目标的重要途径,在中国大力推进整县屋顶分布式光伏试点的背景下,农村整村的光伏利用模式和系统容量配置问题需要进一步探索.基于屋顶光伏的利用模式,提出了"自用优先光伏"和"公共光伏"2 种适用于农村住宅建筑的PEDF系统拓扑结构.从系统技术性和经济性角度出发,对比分析了不同拓扑结构在不同光伏和储能容量配置下的系统性能.以北京市某农村由 18 个农户家庭组成的配电台区为研究对象进行仿真计算,结果表明:光伏装机容量高时,适宜发展公共光伏系统形式,负荷满足率可提高 0.3～1.9 个百分点,年净收益可提高 1.7 万元;光伏装机容量低时,适宜发展自用优先光伏系统形式,负荷满足率和光伏消纳率可分别提高 1.0～3.0 个百分点和0.6～2.7 个百分点.实际工程中,可结合投资运行主体进行系统优化选择,并充分利用建筑末端柔性资源的调蓄能力,提升系统稳定性和经济性,助力构建以新能源为主体的未来电力系统.
Abstract
Photovoltaics,energy storage,direct current,and flexibility(PEDF),a new building power distribution system,is an important way to"carbon peak and carbon neutralization".Amid the vigorous commitment to distributed photovoltaic pilots based on county seats,the utilization mode of photovoltaic and system capacity allocation in rural residential buildings need to be further explored.Based on the utilization mode of roof PV,this paper proposes two topologies of PEDF systems for rural residential buildings,self-priority and public PV.The system performance of different topologies with various photovoltaic and energy storage capacity configurations is compared and analyzed from technological and economical perspectives.A simulation of a distribution station composed of 18 rural households from a village in Beijing shows that the public PV system is suitable for high PV installed capacity.The load satisfaction rate can be increased by 0.3-1.9%,and the annual net income by CNY 17,000.While the self-priority PV system is suitable for low PV installed capacity.The load satisfaction rate and photovoltaic consumption rate can be increased by 1.0～3.0 percentage points and 0.6～2.7 percentage points,respectively.In the actual project,the system optimization selection can be combined with the investment operator,and the regulation and storage capacity of the flexible resources in the buildings can be fully used to improve the system stability and cost-effectiveness,which can help construct the new power system mainly fueled by renewable energy.
关键词
农村住宅建筑/光储直柔/拓扑结构/容量配置/储能成本Key words
rural residential building/PEDF/topologies/capacity configuration/energy storage cost引用本文复制引用
基金项目
国家电网科技项目(5400-202219175A-1-1-ZN)
出版年
2024
国家科技期刊平台
NSTL
万方数据