Analysis of the economy and carbon emissions of photovoltaic direct drive inverter multi-connection in severe cold areas
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.
photovoltaic direct drive inverter multi-linesevere cold regionsnear-zero-energy office buildingseconomycarbon emissions