Photovoltaic And Energy Storage Are Applied To The Economic And Carbon Reduction Potential Analysis Of Electrified Communities

As the problem of climate change caused by greenhouse gases becomes more and more serious,achieving the goal of carbon neutrality is related to the future survival and development of mankind.The carbon emissions generated in the building sector,especially during the operation phase of buildings,account for a high proportion of global carbon emissions,so controlling carbon emissions in the building sector plays an important role in achieving carbon neutrality.Electrified communities with distributed photovoltaic power generation and energy storage systems have the advantages of clean and efficient photovoltaic and stable energy storage systems,which has become an effective measure to reduce carbon emissions and has received widespread attention.Realizing the friendly interaction between communityphotovoltaic-energy storage and balancing the carbon emissions and economy of electrified communities are of great practical significance for the establishment of low-carbon and lowcost electrified communities suitable for promotion.Based on the distributed photovoltaic power generation system and energy storage system of the community,and based on the power generation system model and related calculation model established by Simulink software,this paper analyzes the influence of photovoltaic intervention ratio,regional differences,and energy storage methods and other influencing factors on the carbon emission performance and electricity economy of the electrified community,and the main research contents are as follows:(1)Based on the example of zero-energy community,the complete model of electrified community was established,and the monthly average monthly electricity consumption and electricity demand of various types of buildings in the community were analyzed by TRNSYS18 software,and the Simulink software was used to build the photovoltaic power generation system model,the output performance of the photovoltaic power generation system was analyzed,and the relevant indicators characterizing the carbon emissions and economy of the electrified community were established by applying the LCOE principle.(2)Taking the electrified community located in Yulin area as an example,based on the data obtained by the photovoltaic power generation system model,the impact of the photovoltaic intervention ratio and the attenuation of the photovoltaic power generation system on the carbon emissions and the economic consumption of the community electricity consumption were calculated by Simulink software.Taking the selected three typical cities in Northwest,North China and Southwest China as examples,the impacts of regional factors and lighting resources on carbon emissions and economy of electrified communities are further analyzed.(3)Based on the electrified community with a high proportion of distributed photovoltaic power generation,the community electricity economy of the electric vehicle energy storage system under different charging and discharging strategies using battery energy storage system and different charging and discharging strategies was compared and analyzed,and the feasibility of electric vehicle photoelectric consumption based on Monte Carlo simulation method was analyzed,as well as the benefits brought by electric vehicles participating in community energy storage and the role of load regulation.The results show that from the perspective of carbon emission reduction,the increase of photovoltaic intervention ratio in electrified communities is conducive to the reduction of community carbon emissions and traditional fossil energy consumption,and the carbon emissions of communities in different areas are mainly related to local lighting resources,and the richer the lighting resources,the more conducive to reducing the carbon emissions of the community.From an economic point of view,with the increase of the proportion of community photovoltaic intervention,the cost of electricity consumption in the community decreases,but the payback period shows a trend of increasing first and then decreasing.Through the comparative analysis of typical urban communities,it is found that electrified communities have better economy in areas with abundant lighting resources,and the investment payback period in southwest China is about twice that of northwest and north China.The energy storage system helps to improve the economy of the electrified community,and the community benefit is the highest in the peak charging mode of electric vehicle energy storage,which is about 3times that of no energy storage,and the participation of electric vehicles in community energy storage can also play a role in regulating the load and shaving peaks and filling valleys.By examining the influence of photovoltaic capacity,energy storage system and regional factors on carbon emissions and economy of PV-energy storage-communities,this paper provides a basis and support for the matching combination of distributed photovoltaic power generation and energy storage systems in electrified communities.