低压直流供用电技术在零碳建筑中的探索应用  

Exploration and application of low voltage DC power supply technology in zero carbon building

作　　者：李建标 陈建福 陈夏 陈勇 程旭 李巍巍 陆子凯 高滢 LI Jianbiao;CHEN Jianfu;CHEN Xia;CHEN Yong;CHENG Xu;LI Weiwei;LU Zikai;GAO Ying(DC Power Distribution and Consumption Technology Research Centre of Guangdong Power Grid Co.,Ltd.,Zhuhai 519000,China;Southern Power Grid Research Institute Co.,Ltd.,Guangzhou 510663,China;China Southern Power Grid Technology Co.,Ltd.,Guangzhou 510080,China)

机构地区：[1]广东电网有限责任公司直流配用电研究中心,广东珠海519000 [2]南方电网科学研究院有限责任公司,广东广州510663 [3]南方电网电力科技股份有限公司,广东广州510080

出　　处：《供用电》2022年第8期67-74,共8页Distribution & Utilization

基　　金：中国南方电网有限责任公司科技项目(GDKJXM20212062)。

摘　　要：“双碳”目标下零碳建筑发展势在必行,如何提升以光伏为核心的零碳能源的使用效率和供电系统运行灵活性,是实现建筑零碳运行的重要研究课题。首先,结合国内外节能低碳建筑的发展进程,对零碳建筑分阶段发展目标和实现路径进行了研究分析。其次,研究了直流供电技术在建筑低压供电系统的应用模式,以办公建筑为应用场景制定了适用于零碳建筑的低压直流系统架构、运行和能量管理方案。最后,效益评估结果表明,低压直流供用电技术在光伏接入、储能、充电桩、典型大功率负荷等设备应用场景下的能量转换效率、电能质量方面有显著优势。低压直流供用电技术相较交流技术能更好支撑建筑利用零碳能源,实现低碳运行。It is imperative to develop zero carbon buildings under the carbon peaking and carbon neutrality goals.How to improve the use efficiency of zero carbon energy with photovoltaic as the core and the operation flexibility of power supply system is an important research topic to realize zero carbon operation of buildings.Firstly,combined with the development process of energy-saving and lowcarbon buildings at home and abroad,this paper studies and analyzes the phased development goals and realization paths of zero carbon buildings.Secondly,the application mode of DC power supply technology in building low-voltage power supply system is studied.Taking the office building as the application scenario,a low-voltage DC system architecture,operation and energy management scheme suitable for zero carbon buildings is formulated.Finally the benefit evaluation results show that the low-voltage DC power supply technology has significant advantages in energy conversion efficiency and power quality under the application scenarios of photovoltaic access,energy storage,charging pile,typical high-power load and other equipment.Compared with AC technology,low-voltage DC power supply technology can better support buildings to use zero carbon energy and realize low-carbon operation.

关 键 词：低压直流 零碳建筑 供用电 光储直柔 直流建筑 

分 类 号：TM72[电气工程—电力系统及自动化]