市电、光伏互补相变蓄能电供暖系统柔性负荷调节能力分析  

Analysis of flexible load regulation capability in electric heatingsystem with phase-change for energy storage usingphotovoltaic and grid power

作　　者：张群力[1,2] 张金亮 刘一墨 张秋月 程煊锐 Zhang Qunli;Zhang Jinliang;Liu Yimo;Zhang Qiuyue;Cheng Xuanrui(Beijing Key Lab of Heating,Gas Supply,Ventilating and Air Conditioning Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;School of Environmental and Energy Engineering,Beijing University of Civil Engineering and Architecture,Beijing 100044,China;Aerospace Central Hospital,Beijing 100049,China)

机构地区：[1]北京建筑大学供热供燃气通风及空调工程北京市重点实验室,北京100044 [2]北京建筑大学环境与能源工程学院,北京100044 [3]航天中心医院,北京100049

出　　处：《可再生能源》2024年第9期1179-1188,共10页Renewable Energy Resources

基　　金：北京建筑大学博士研究生科研能力提升项目资助(DG2023010);北京建筑大学研究生创新项目资助(PG2022070)。

摘　　要：随着我国可再生能源的跨越式发展,新能源电力消纳问题日益突出。文章构建了市电与光伏互补型相变蓄能电供暖系统,搭建了该系统动态热性能的数学模型,设计了系统的热电负荷柔性调节控制策略。针对北京市某低碳建筑进行情景分析,模拟研究了该系统的光伏消纳能力和柔性负荷转移能力。结果表明:在室内温度维持在18℃的情况下,采用屋顶光伏的系统能够降低案例建筑93.9%的峰电消耗量及23.9%的一次能源消耗量;与无光伏系统相比,使用不同安装形式及面积的系统,峰电消耗量能够降低75.1%~97.4%,且蓄电容量的提升对系统的柔性负荷转移能力提升有着显著作用,当蓄电池容量大于15 kW·h时,提升效果逐渐减小。With the leapfrog development of renewable energy in China,the problem of new energy electric power utilization has become increasingly prominent.This paper,constructs an electric and photovoltaic complementary electric heating system with phase-change thermal energy storage,and a mathematical model of the thermal performance of the system is constructed,which can reflect the dynamic thermal performance of the indoor thermal environment of the system,and the control strategy of the flexible thermoelectric load regulation of the system is designed.A case study was carried out on a low-carbon building in Beijing,and the load transfer capacity and photovoltaic absorption capacity of the system were simulated and studied.The results show that the system with this rooftop photovoltaic was able to reduce the peak electricity consumption of the case building by 93.9%and the primary energy consumption by 23.9%,with the indoor temperature being maintained at 18℃.In this study,the peak power consumption can be reduced by 75.1%to 97.4%compared to the system without PV using different PV installed capacity installation methods and areas,and the improvement of the storage capacity has a significant effect on the improvement of the system's flexible load transfer capability,and the improvement effect gradually decreases when the storage battery capacity is larger than 15 kW·h.

关 键 词：光伏 供暖 多能互补 柔性负荷 建筑热性能 

分 类 号：TK51[动力工程及工程热物理—热能工程] TU854[建筑科学]