大規模集合住戸のエアコンの電力使用量の時系列データに基づく統計分析

摘要

The detailed statistical analysis was conducted in terms of the electricity use by air conditioners (A/Cs) in residential buildings according to the time-series data of electricity consumption. These data were observed for two years with an interval of 1 min in more than 500 dwellings at a residential building complex located in Settu city, Osaka, Japan. The analysis revealed the strong diversity of the amount of electricity consumption and the dependency of the outdoor thermal condition on the frequency of A/Cs among households. In addition, both the diurnal and annual cycles of A/C usage were shown. Furthermore, the derived probability density distributions of the A/C load for each dwelling demonstrated variation among households, and suggested the difficulty in universally modelling their features even though the A/C was scaled using the average of A/C load.%大阪府摂津市に位置する地上20階建て集合住宅団地の全586戸の2年間の電力使用量の1分間隔実測データに基づき，ルームエアコンの電力使用量や使用時間の統計性状に関する詳細な分析を行った.その結果，エアコンの使用電力の住戸間のばらつき，冬季と夏季の運転割合の日変動，外気温度条件に対する運転頻度の特性を明らかにした.また，各住戸の空調負荷の確率密度分布は，平均値による無次元化を施した場合でもその分布性状は住戸毎に大きく異なる事を示した.