| 摘要 |
PURPOSE: A method and apparatus for calculating a design coefficient of a photovoltaic power generating system are provided to implement the optimum design and improve performance by calculating the design coefficient which is a relation between the performance and a loss of the photovoltaic power generating system regardless of an installation capacity. CONSTITUTION: A design coefficient considering the other losses of a photovoltaic power generating array is calculated(S30). A design coefficient considering a loss of a DC line of the photovoltaic power generating array is calculated based on the above design coefficient(S32). A design coefficient considering a mismatch loss of the photovoltaic power generating system is calculated based on the above design coefficient(S34). A design coefficient considering a temperature rise of the photovoltaic power generating array is calculated based on the above design coefficient(S36). A design coefficient considering a loss of a photovoltaic power generating inverter is calculated based on the above design coefficient(S38). A design coefficient of the photovoltaic power generating system is calculated based on the calculated design coefficients(S40). [Reference numerals] (AA) Starting a design coefficient calculating unit; (BB) Finish; (S30) Ko calculation; (S32) Ka calculation; (S34) Km calculation; (S36) Kt calculation; (S38) Kp calculation; (S40) K calculation |
