农村住宅建筑光伏柔性能源系统配置优化研究OA

With the promotion of carbon peak and carbon neutral policies,the proportion of renewable energy represented by photovoltaic(PV)has been gradually increased,and the construction of distributed energy power system in the future has become a key way to realize the dual-carbon goal.In this study,based on energy-exporting rural residential buildings,a PV flexible energy system integrating distributed photovoltaic,storage battery,DC power distribution,and electric vehicle flexible energy use is proposed.Taking 30 typical rural households in Beijing as an example,a flexible photovoltaic energy system for rural residential buildings was constructed.The energy consumption characteristics of electric vehicles were simulated,and the impacts of strategic electric vehicle charging and photovoltaic energy storage configuration on the technical,economic,and environmental aspects of the flexible power system were analyzed.The results show that under the technical optimization objective,the optimal capacity configuration is 8 times of the annual PV power generation of the electric load(Pc=8),the battery capacity is 200 kW·h(Eb=1),and the system load supply rate(SSR)reaches 93.4%;under the economic optimization objective,the optimal configuration is Pc=7,Eb=0,and the system's annual net income reaches 88 000 CNY;under the environmental protection Under the optimization goal of environmental protection,the best configuration is Pc=8,Eb=1,and the annual CO2 emission reduction reaches 189.6 t.This study provides an ideal capacity configuration scheme for the rural residential building PV flexible energy system to realize the balance of economy,technology and environmental protection.