Analysis of the economy and carbon emissions of photovoltaic direct drive inverter multi-connection in severe cold areas
ZHU Lin
YU Wen-tao
ZHANG Xi-ming
QI Yan-yu
CHOU Xue-song
ZHANG Heng
Abstract：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.
Keywords：photovoltaic direct drive inverter multi-linesevere cold regionsnear-zero-energy office buildingseconomycarbon emissions
Publication Date：2024-02-15
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 39-42 )