Title :
Estimation of total power output fluctuation of high penetration photovoltaic power generation system
Author :
Kato, T. ; Inoue, T. ; Suzuoki, Y.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Nagoya Univ., Nagoya, Japan
Abstract :
This study proposes a method to estimate the standard deviation (STD) of total power output fluctuation of high penetration photovoltaic power generation system (HP-PVS) dispersed in large area, so that the impact of HP-PVS on the load frequency control is discussed. First, by using the data of horizontal global insolation observed at 5 points in 25 km × 25 km area, the practical usefulness of STD is evaluated by comparing the STD with the maximum fluctuation width. Then, two key factors of the proposed model are discussed; the distance with which the insolation fluctuations at two points can be considered as independent, and the practical usefulness of the central limit theorem to estimate the STD of ensemble average fluctuation of insolation. Finally, assuming the geographical distribution of residential PVS, the STD of total power output fluctuation of HP-PVS dispersed in the service area of electric power utility is evaluated.
Keywords :
fault diagnosis; frequency control; photovoltaic power systems; power generation control; central limit theorem; electric power utility; ensemble average fluctuation; geographical distribution; high penetration photovoltaic power generation system; horizontal global insolation; insolation fluctuations; load frequency control; maximum fluctuation width; service area; standard deviation estimation; total power output fluctuation estimation; Correlation; Electricity; Fluctuations; Frequency control; Photovoltaic systems; Power systems; central limit theorem; coherence; insolation; load frequency control; photovoltaic system;
Conference_Titel :
Power and Energy Society General Meeting, 2011 IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4577-1000-1
Electronic_ISBN :
1944-9925
DOI :
10.1109/PES.2011.6039560
