用LSTM预测的利比亚电力负荷,比其他模型更准
Data-driven Insights for Informed Decision-Making: Applying LSTM Networks for Robust Electricity Forecasting in Libya
- 用LSTM融合温度湿度等外部数据,建模非平稳与季节性
- 在2019和2023年数据上,LSTM误差最低,2025预测更可靠
- 适合电力短缺地区政策制定者和电网运营方参考
准确的电力负荷预测对电网稳定和能源规划至关重要,尤其在利比亚班加西地区,长期存在频繁停电、发电不足和基础设施受限问题。本研究基于2019年(动荡年)和2023年(较稳定年)的历史数据,采用多种时间序列模型(包括ARIMA、季节性ARIMA、动态回归ARIMA、指数平滑、极端梯度提升及长短期记忆网络)进行2025年电力负荷、发电量和缺口预测。数据通过缺失值填补、异常值平滑和对数变换增强。评估指标包括均方误差、均方根误差、平均绝对误差和平均绝对百分比误差。结果表明,LSTM在所有模型中表现最优,展现出对非平稳与季节性模式的强大建模能力。该工作关键贡献在于构建了一个集成温度、湿度等外生变量的优化LSTM框架,能有效预测多个电力指标。研究结果为数据稀缺、波动性强地区的政策制定者与电网运营商提供切实可行的决策支持,助力主动负荷管理与资源规划。
原文摘要 · Abstract (English)
Accurate electricity forecasting is crucial for grid stability and energy planning, especially in Benghazi, Libya, where frequent load shedding, generation deficits, and infrastructure limitations persist. This study proposes a data-driven approach to forecast electricity load, generation, and deficits for 2025 using historical data from 2019 (a year marked by instability) and 2023 (a more stable year). Multiple time series models were applied, including ARIMA, seasonal ARIMA, dynamic regression ARIMA, exponential smoothing, extreme gradient boosting, and Long Short-Term Memory (LSTM) neural networks. The dataset was enhanced through missing value imputation, outlier smoothing, and log transformation. Performance was assessed using mean squared error, root mean squared error, mean absolute error, and mean absolute percentage error. LSTM outperformed all other models, showing strong capabilities in modeling non-stationary and seasonal patterns. A key contribution of this work is an optimized LSTM framework that integrates exogenous factors such as temperature and humidity, offering robust performance in forecasting multiple electricity indicators. These results provide practical insights for policymakers and grid operators to enable proactive load management and resource planning in data-scarce, volatile regions.
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