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考虑电力中长期交易机制的次月典型日负荷曲线预测OA

Typical Daily Load Curve Forecasting for the Next Month Under Medium-and Long-term Electricity Trading Mechanisms

中文摘要英文摘要

随着全国统一电力市场的快速发展,典型曲线的精准预测成为了中长期市场与现货市场有效衔接互动的关键问题.文章聚焦于次月典型日负荷曲线预测问题,提出了一种融合分时段电价因素与多尺度时序特征的用户群次月典型日负荷预测框架.首先,构建了 Mamba-LWT(Mamba-local window transformer)双通道时序模型,分别捕捉季节性宏观趋势与日内局部波动,并通过长短期时序路由自适应聚合输出,实现了对负荷曲线多尺度特性的精准建模.同时,在模型中引入改进的迁移学习策略,通过源域数据预训练通用时序特征,再通过目标域数据分层微调补充分时电价特征,解决了当前分时电价政策下目标域样本不足的难题.最后,基于北方某市工商用户用电数据验证模型的有效性,表明所提框架在点预测上优于所选主流对比模型,各预测指标的误差数值降低10.32%以上;在区间预测上,90%置信区间各项指标相较于现有模型提升了至少2.21%.研究结果可为后续电力交易策略提供数据基础.

With the rapid development of the national unified electricity market,the accurate prediction of typical curves has become a key issue for the effective connection and interaction between medium-and long-term markets and spot markets.This paper focuses on predicting the typical daily load curve for the next month and proposes a user-group typical daily load prediction framework that integrates time-of-use electricity prices and multi-scale time-series features.First,a Mamba-LWT(Mamba-Local Window Transformer)dual-channel time-series model is constructed to capture seasonal macro-trends and intra-day local fluctuations,respectively.Through adaptive aggregation in long-short time-series routing,the model accurately models the multi-scale characteristics of load curves.Meanwhile,an improved transfer learning strategy is innovatively introduced into the model.It pre-trains general time-series features using source-domain data and then supplements time-of-use electricity price features via hierarchical fine-tuning with target-domain data,effectively addressing the problem of insufficient target-domain samples under the current time-of-use electricity price policy.Finally,the effectiveness of the proposed model is verified using electricity consumption data from industrial and commercial users in a city in northern China.The proposed framework outperforms the selected mainstream comparison models in point prediction,with the errors for all prediction indicators reduced by more than 10.32%.In interval prediction,all indicators of the 90%confidence interval are improved by at least 2.21%relative to existing models.This study will provide a solid data foundation for subsequent electricity trading strategies and also serve as an important reference for the sustainable development of the electricity market.

边文钰;史佳琪;刘念;丁一;高齐;李欣芝

新能源电力系统国家重点实验室(华北电力大学),北京市 昌平区 102206沈阳工程学院新能源学院,辽宁省沈阳市 110136新能源电力系统国家重点实验室(华北电力大学),北京市 昌平区 102206国网天津市电力公司电力科学研究院,天津市 西青区 300380新能源电力系统国家重点实验室(华北电力大学),北京市 昌平区 102206新能源电力系统国家重点实验室(华北电力大学),北京市 昌平区 102206

信息技术与安全科学

次月典型日负荷预测Mamba-LWT双通道时序模型改进迁移学习分时段电价区间预测

load forecasting of typical day in the next monthMamba-LWT dual-channel time-series modelhierarchical transfer learningtime segment priceinterval forecasting

《电网技术》 2026 (6)

2278-2291,中插8-中插9,16

国家自然科学基金项目(52407128).Project Supported by National Natural Science Foundation of China(52407128).

10.13335/j.1000-3673.pst.2025.1125

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