Research on the performance of near-zero energy building energy supply system combined with photovoltaic energy storage and hydrogen
TANG Xin
LIANG Zhuoying
FAN Xuejing
WU Di
Abstract：Building energy supply systems that integrate multiple energy storage methods have become an effective way to reduce building energy consumption,improve the utilization rate of renewable energy and the load satisfaction rate of users.Construct a multi-energy storage and supply system integrating photovoltaic,electricity storage and hydrogen storage,and propose an energy management strategy suitable for this system.Taking ultra-low energy consumption residences in extremely cold regions as the research object,the hourly cooling,heating and power loads of the residences throughout the year are simulated and calculated through Trnsys,and multiple simulation models of energy supply systems are established.The amount of abandoned light and the load non-compliance rate of different energy supply system cases are compared and analyzed.The results show that the photovoltaic energy storage and hydrogen system can effectively reduce peak loads and fill valleys,and can meet the load demands of users when the power of photovoltaic and battery is insufficient.Compared with the photovoltaic system and the photovoltaic storage system,the photovoltaic hydrogen storage system has reduced the amount of abandoned light by 93.50%and 77.73%,respectively,and the load non-compliance rate has decreased by 68.08%and 36.49%,respectively.The feasibility of the system is further demonstrated by simulating and analyzing the energy supply and demand balance of the photovoltaic hydrogen storage system on typical days in summer and winter.It provides a reference for the optimization of the energy supply system of ultra-low energy consumption buildings in extremely cold regions.
Keywords：nearly zero-energy consumption buildingmulti-energy storage and supply systemabandoned light quantityroptimization of energy supply systemsystem supply and demand balance
Publication Date：2025-08-30
Online Publishing Date：2025-10-22(First online date of this platform, not the publication date of the document)
Pages：6( 1-6 )