“光储直柔”建筑案例特征分析及系统设计相关问题探讨
Analysis on characteristics of PEDF (photovoltaic, energy storage,direct current and flexibility) building cases and discussion on related problems of system design
摘要：
“光储直柔”是解决建筑光伏发电与建筑终端用电时空错配难题等问题、促进光伏发电本地消纳的重要技术手段之一,也是以可再生能源为主体的新型电力系统实现“荷随源动”,提高供电安全性、可靠性与稳定性的重要支撑技术,对于零碳建筑和零碳电力的实现也具有重要作用。本文在对国内“光储直柔”建筑示范项目调研的基础上,汇集17个典型案例,分析了“光储直柔”建筑的气候区域、建筑类型、建筑规模等分布特征和建筑光伏、储能、直流配电、直流用电场景等技术特征,提出了建筑“光储直柔”的适宜应用场景、系统拓扑结构及电压等级选择建议和“光储直柔”系统的容量配置方法,指出了城市和农村建筑“光储直柔”发展的差异化技术路径,为建筑“光储直柔”的设计与推广应用提供一些有益参考。
Abstract：
PEDF is an important technical means to solve the spatial-temporal mismatch problem between building photovoltaic power generation and building terminal electricity consumption, and to promote the local consumption of photovoltaic power generation. It is also an important technical support for the new power system with renewable energy as the main body to realize “the load moves with the source” and improve the safety, reliability and stability of power supply. It plays an important role in the realization of zero-carbon buildings and zero-carbon electricity. Based on the investigation of domestic demonstration projects of PEDF, this paper selects 17 typical cases of different application scenarios, analyses the distribution characteristics such as climate region, building type and building scale, and the technical characteristics of photovoltaic, energy storage, DC power distribution, DC power consumption scenarios of PEDF buildings, and puts forward the suitable application scenario, system topology structure and voltage level selection principle of the PEDF building and the capacity allocation method of the PEDF system, and points out the differentiated technical path for the development of the PEDF in urban and rural buildings, which provides some useful references for the design and popularization of PEDF buildings.
Keywords:PEDF (photovoltaic, energy storage, direct current and flexibility); building case; system design; capacity allocation; technical path