Low Voltage Daily Energy Demand Temperature Dependent Representation by Using Circular Statistics

• 作者: Herrera Martín Piumetto Miguel Pucheta Julián Rodriguez Rivero Cristian Salas Carlos
• 来源期刊: 应用数学(英文)
• 学科: 医学
• 关键词: Distribution TRANSFORMERS CHARGE Estimation Time Series Dynamic Process Circular STATISTICS
• 年，卷（期）: yysxyw_2019,（3）
• 页码范围: 61-74
• 页数: 14页
• 分类号: R73

摘要

In this work, a tool that allows visualizing the probability of the power demand according to the temperature and the hours of the day is presented. This aim contributes to the decision making support for the transformer and its service administration. The objective is to represent the demand accurately as a color statistical map based on two variables: the time of day and the ambient temperature. Since the daily energy consumption is periodic regarding the hours of the day in terms of several days, its representation with Gaussian models becomes difficult, but it is simplified when working with circular statistics. The circular statistics used here is the Von Mises distribution, which has the parameters mean address and kappa concentration. Results obtained from measurements made over a year in a medium-voltage transformer with intervals of 60 minutes are shown.