OPTIMIZED POWER ALLOCATION METHOD OF INVERTER IN PHOTOVOLTAIC POWER GENERATING SYSTEM

摘要

PURPOSE: An inverter power allocation method in a solar power system is provided to maximize the efficiency of an inverter by using a power allocation method according to efficiency. CONSTITUTION: The output power total of solar power arrays is calculated(S10). The output power total and a maximum power capacity are compared with each other(S20). Output power is allocated to each inverter according to the power allocation efficiency of the inverter(S60). The efficiency of allocating average power to the inverter and the efficiency of allocating maximum efficiency power to the inverter are obtained according to the comparison result of the output power total and the maximum power capacity. [Reference numerals] (AA) Start; (BB) End; (S10) The sum total(P_total) of output power of sunlight generation arrays; (S20) P_total > maximum power of an inverter (P_max); (S30) Obtaining efficiency(η_ave) of average power allocation and efficiency(η_MEP) of maximum efficiency power allocation; (S40) Allocating to only one inverter; (S60) Allocating maximum efficiency power; (S70) Allocating average power