In severe cold regions,extreme climatic conditions and the instability of irradiation intensity bring challenges to the operation of photovoltaic direct-drive inverter multi-line.By monitoring the operation of photovoltaic direct-drive inverter multi-connection in near-zero energy office buildings in severe cold areas,the operating energy consumption during the experiment was analyzed.The results show that the operating cost of the photovoltaic direct-drive inverter multi-connection system during the experiment is about 55.81%less than that of the ordinary multi-online air conditioning system,and the economic benefits are significant.The static payback period of the PV direct-drive inverter multi-connection system is less than 10 years.Within 20 years of the design life of the building,the carbon emissions of the photovoltaic direct-drive inverter multi-connection system are reduced by about 56.95%compared with the ordinary multi-online air conditioning system,and the carbon reduction effect is obvious.
关键词
光伏直驱变频多联机/严寒地区/近零能耗办公建筑/经济性/碳排放量
Key words
photovoltaic direct drive inverter multi-line/severe cold regions/near-zero-energy office buildings/economy/carbon emissions
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