抄録
In order to mitigate the impacts of high penetration photovoltaic power generation system (HP-PVS) on the electric power system operation, the statistical evaluation of the aggregated power output fluctuation characteristics of HP-PVS is important. By using the multi-points irradiance data observed for a year in the Chubu region of Japan, we have evaluated the fluctuation characteristics of spatial average irradiance. However, the study period is not enough for a statistical evaluation. Therefore, this study assessed the usability of the sunshine duration data of AMeDAS (Automated Meteorological Data Acquisition System) for the statistical evaluation of fluctuation characteristics in terms of daily maximum fluctuation width in 120min. The irradiance estimation method from the sunshine duration data at single point proposed in the precedent study was modified to be suitable for the spatial average irradiance estimation by taking into account the smoothing effect of irradiance fluctuation among several points. The result suggests that the AMeDAS sunshine duration data would be useful for the statistical evaluation of fluctuation characteristics of spatial average irradiance of electric power system service area.
