As parallel connection for multiple inverters can effectively increase the system level

when considering the total power loss caused by different power conversion efficiency

an improved power allocation method is proposed. First

the power model of each inverter is built to prove higher system efficiency can be achieved with the improved power allocation method in theory. Secondly

the system efficiency can be calculated with easily measurable electric parameters to achieve online optimization by adopting the mountaineering method. Thirdly

the feasibility of the improved power allocation method is verified with MATLAB/Simulink software. Finally

the experimental platform of parallel inverters is built in the laboratory to verify the feasibility and effectiveness of this method by experiment.