異地点における日射変動の短周期変動の間の相関―変動が大きい日における相関の分析―

カテゴリ: 論文誌(論文単位)

グループ名: 【B】電力・エネルギー部門

発行日: 2014/04/01

タイトル(英語): Correlation in Short-Term Fluctuations of Solar Irradiances across an Area―Analysis of Correlation on a Day with Large Fluctuations―

著者名: 七原　俊也（（一財）電力中央研究所／東北大学大学院工学研究科），由本　勝久（（一財）電力中央研究所），大嶺　英太郎（（一財）電力中央研究所），西野　慎一（中部電力（株）），和澤　良彦（中部電力（株））

著者名(英語): Toshiya Nanahara (Central Research Institute of Electric Power Industry/Department of Electrical Engineering, Tohoku University), Katsuhisa Yoshimoto (Central Research Institute of Electric Power Industry), Eitaro Omine (Central Research Institute of Electric Power Industry), Shin'ichi Nishino (Chubu Electric Power Co., Inc.), Yoshihiko Wazawa (Chubu Electric Power Co., Inc.)

キーワード: 太陽光発電，出力変動，平滑化効果，相互相関関数，スペクトル解析，雲　　photovoltaic power generation，output fluctuation，smoothing effect，cross correlation function，spectral analysis，cloud

要約(英語): Large-scale penetration of photovoltaic power generation (PV) causes concerns in keeping supply-and-demand balance of a power system because output power of PVs shows considerable fluctuations due to weather condition. To assess the impacts on the balance, fluctuation characteristics of PVs should be examined for the case of large-scale penetration of PVs. Since fluctuation of total output of many PVs dispersed across an area is dominated by smoothing effects and the smoothing effects are governed by correlation among solar irradiances across the area, correlation in solar irradiances at various locations should be examined. The paper analyzes solar irradiances on the days with large short-term fluctuations in irradiance using cross correlation function, spectral analyses, etc. The results show that the days with large fluctuations can be generally classified into two categories―ie., days with high and low correlations―and the correlation basically depends on horizontal scale of clouds.

本誌: 電気学会論文誌B（電力・エネルギー部門誌） Vol.134 No.4 （2014） 特集：電力システムの時系列データおよびその解析技術

本誌掲載ページ: 336-343 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejpes/134/4/134_336/_article/-char/ja/