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基于配用电大数据的短期负荷预测 被引量:28
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作者 丁晓 孙虹 +4 位作者 郑海雁 季聪 徐金玲 仲春林 熊政 《电力工程技术》 2018年第3期21-27,共7页
受限于数据信息的不完整和粗粒度,短期网供负荷预测的准确率一直难以进一步提升,而配用电信息系统数据的积累和大数据技术的快速发展为开展基于配用大数据的短期负荷预测提供了数据基础和技术支撑。本文首先针对配用电大数据的特征分析... 受限于数据信息的不完整和粗粒度,短期网供负荷预测的准确率一直难以进一步提升,而配用电信息系统数据的积累和大数据技术的快速发展为开展基于配用大数据的短期负荷预测提供了数据基础和技术支撑。本文首先针对配用电大数据的特征分析了"脏数据"的来源与类型,并提出了相应的数据清洗方法;其次基于大量的历史负荷、电量和气象数据,构建了行业负荷温度影响模型和行业电量节假日影响模型;最后基于上述用电影响模型开展了江苏电网短期网供负荷预测,实际计算结果验证了预测效果的有效性和准确性。 展开更多
关键词 配用电大数据 数据清洗 负荷温度影响模型 电量节假日影响模型 短期负荷预测
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Modeling public holidays in load forecasting: a German case study 被引量:3
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作者 Florian ZIEL 《Journal of Modern Power Systems and Clean Energy》 SCIE EI 2018年第2期191-207,共17页
We address the issue of public or bank holidays in electricity load modeling and forecasting. Special characteristics of public holidays such as their classification into fixed-date and weekday holidays are discussed ... We address the issue of public or bank holidays in electricity load modeling and forecasting. Special characteristics of public holidays such as their classification into fixed-date and weekday holidays are discussed in detail. We present state-of-the-art techniques to deal with public holidays such as removing them from the data set,treating them as Sunday dummy or introducing separate holiday dummies. We analyze pros and cons of these approaches and provide a large load forecasting study for Germany that compares the techniques using standard performance and significance measures. Finally, we give general recommendations for the treatment of public holidays in energy forecasting to suggest how the drawbacks particular to most of the state-of-the-art methods can be mitigated. This is especially useful, as the incorporation of holiday effects can improve the forecasting accuracy during public holidays periods by more than 80%, but even for non-holidays periods, the forecasting error can be reduced by approximately 10%. 展开更多
关键词 Public holidays Bank holidays Special day effects Forecasting electricity load holiday dummy
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