寒冷地区零碳公寓光储直柔系统设计要点及案例研究
Key design points and case study of photovoltaic,energy storage,direct current and flexibility systems for zero carbon apartments in cold zone
摘要：
在“双碳”目标驱动下,光储直柔系统成为建筑领域能源转型的关键路径。本文以某零碳公寓为研究对象,构建了涵盖光伏发电、储能调控、直流配电与柔性用电的协同设计体系,形成了“理论建模-仿真优化-工程设计”的设计阶段全过程技术路径。基于建筑能耗与光伏发电模拟仿真,确定了光伏-负荷-储能系统的容量配置。同时,针对本系统多光伏单元、多储能单元问题,通过直流母线电压分层架构的控制策略,实现了光储系统高效协同,解决了功率平衡与电压稳定问题。本文所用技术在寒冷地区的可行性为同类光储直柔建筑的设计提供了参考思路。
Abstract：
Driven by the “dual carbon” goal,the photovoltaic,energy storage,direct current and flexibility (PEDF) system has become a key path for the energy transformation in the building field.This article takes a zero carbon apartment as the research object and constructs a collaborative design system covering photovoltaic power generation,energy storage regulation,direct current (DC) power distribution,and flexible electricity use,forming a full process technical path for the design stage of “theoretical modeling-simulation optimization-engineering design”.Based on the simulation of building energy consumption and photovoltaic power generation,the capacity configuration of the photovoltaic-load-energy storage system is determined.At the same time,in response to the problems of multiple photovoltaic units and multiple energy storage units in this system,the control strategy of the DC bus voltage layered architecture is adopted to achieve the efficient coordination of the photovoltaic and energy storage system,solving the problems of power balance and voltage stability.The feasibility of the technology used in this article in the cold zone provides a reference for the design of similar PEDF buildings.
Keywords:photovoltaic,energy storage,direct current and flexibility (PEDF); zero carbon building; control strategy; design system; capacity configuration; photovoltaic power generation; energy storage regulation; direct current power distribution