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Hourly energy consumption characteristics of metro rail transit:train traction versus station operation

Energy and Built Environment 2023年第5期4卷 568-575页

作者： Bowen Guan Xiaohua Liu Tao Zhang Xinke Wang School of Human Settlements and Civil Engineering Xi’an Jiaotong UniversityXi’anShaanxi710054China Department of Building Science Tsinghua UniversityBeijing 100084China

The electricity consumption of the urban metro system can be mainly divided into the following two categories:the electricity consumption for train traction(E_(t))and the electricity consumption for station operation(E_(s)).Although understanding the hourly fluctuation characteristics of E_(t) and E_(s) contributes to renewable energy inte-gration and achieving carbon emission reduction of the metro system,the hourly fluctuation characteristics have been poorly reported in the ***,a typical underground non-transfer metro station of a city’s metro system in the North China Plain is selected in this study,and E_(t) and E_(s) were monitored to portray their hourly fluctuation *** reveal that the hourly E_(t) shows a significant intraday“U”shape on weekdays,indicating two symmetric peaks in morning and evening rush *** the hourly E_(s) shows an intraday“flat”shape,indicating it is nearly free from the effect of rush ***,it is statistically proved that the train frequency is the core influencing factor resulting in the intraday fluctuation of hourly E_(t).In the case study,when the train frequency increases from the mean(20 trains per hour)to maximum(32 trains per hour),the hourly E_(t) will increase by 53.4%.

关键词： Urban rail transit Energy consumption Hourly fluctuation train traction Station operation Carbon emission reduction

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