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A study on the electric power load of Beijing and its relationships with meteorological factors during summer and winter

机译：夏季和冬季北京市电力负荷及其与气象因子的关系研究

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摘要

Using the daily electric power load and meteorological data over the period from January 2006 to September 2010 in Beijing, the general features of the electric power load and the main factors affecting this load have been analysed. The results indicate that winter and summer are the two peak power consumption seasons in each year. This finding could be mainly attributed to the consumption of energy for urban residential cooling or heating. In the summer, the daily minimum temperature was most closely correlated with the maximum power load (correlation co-efficient of 0.65, significant at the 0.1% level); the primary effect of temperature on the maximum power load varied largely from 376 to 858 MW °C~(?1), and it increased sharply when the daily minimum temperature was higher than 24 °C or the daily maximum temperature was higher than 32 °C. In the winter, the daily maximum temperature was most closely correlated with the power load (?0.45, 0.1% significance), and the primary effect varied from 109 to 391 MW °C~(?1). However, the relationship between the power load and the temperature was more complicated in the winter: this relationship varied during the central heating period and its pre- and post-periods. Moreover, the temperature humidity index (THI) could explain more of the variance in the daily maximum power load than any single temperature factor in the summer, while the wind-chill temperature index (WCT) did not contribute to this variance in the winter. Finally, due to the rapid urbanization of Beijing, the power load and the priamry effect increased each year.
机译：利用2006年1月至2010年9月北京的每日电力负荷和气象数据，分析了电力负荷的一般特征和影响该负荷的主要因素。结果表明，冬季和夏季是每年的两个高峰用电季节。这一发现可能主要归因于城市住宅制冷或供暖的能源消​​耗。在夏季，每日最低温度与最大功率负载关系最密切（相关系数为0.65，在0.1％的水平上具有显着性）。温度对最大功率负载的主要影响在376至858 MW°C〜（？1）之间变化很大，并且当每日最低温度高于24°C或每日最高温度高于32°时，温度的急剧增加C。在冬季，日最高温度与电力负荷关系最密切（？0.45，显着性为0.1％），主要影响在109到391 MW°C〜（？1）之间变化。但是，在冬季，功率负载和温度之间的关系更加复杂：这种关系在中央供暖期间及其前后都发生了变化。此外，温度湿度指数（THI）可以解释比夏季任何单个温度因子更多的每日最大功率负荷变化，而冬季的风冷温度指数（WCT）对此变化无贡献。最后，由于北京的快速城市化，电力负荷和母婴效应逐年增加。

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