Evaluation of Calculation Results from Simulation Program of Electric Power Generated by PV System, and Application of Program.

In the design, operation and evaluation of a photovoltaic power generation systems (PV systems), it is particularly important to accurately estimate the total amount of annual electric power generated by PV system. The authors have developed an original “simulation program for the calculation of the amount of power generated by PV system”, and confirmed its estimation accuracy by verification tests. The authors performed various simulation calculations using the developed program in order to apply the results to the development, design, and operation of PV systems. The authors also studied the application of the developed simulation program.Effect of various factors on annual electric power generated was evaluated by simulation calculation. As a result, notable findings have been obtained with respect to the relationship between the method of controlling dc voltage of photovoltaic array, fill factor (FF), wind velocity, resistance of dc collection conductor, and annual electric power generated.