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Short-Term Electrical Load Forecasting Based on IDBO-PTCN-GRU Model

Author

Listed:
  • Renxi Gong

    (School of Electrical Engineering, Guangxi University, Nanning 530004, China)

  • Zhihuan Wei

    (School of Electrical Engineering, Guangxi University, Nanning 530004, China)

  • Yan Qin

    (School of Electrical Engineering, Guangxi University, Nanning 530004, China)

  • Tao Liu

    (School of Electrical Engineering, Guangxi University, Nanning 530004, China)

  • Jiawei Xu

    (School of Electrical Engineering, Guangxi University, Nanning 530004, China)

Abstract

Accurate electrical load forecasting is crucial for the stable operation of power systems. However, existing forecasting models face limitations when handling multidimensional features and feature interactions. Additionally, traditional metaheuristic algorithms tend to become trapped in local optima during the optimization process, negatively impacting model performance and prediction accuracy. To address these challenges, this paper proposes a short-term electrical load forecasting method based on a parallel Temporal Convolutional Network–Gated Recurrent Unit (PTCN-GRU) model, optimized by an improved Dung Beetle Optimization algorithm (IDBO). This method employs a parallel TCN structure, using TCNs with different kernel sizes to extract and integrate multi-scale temporal features, thereby overcoming the limitations of traditional TCNs in processing multidimensional input data. Furthermore, this paper enhances the optimization performance and global search capability of the traditional Dung Beetle Optimization algorithm through several key improvements. Firstly, Latin hypercube sampling is introduced to increase the diversity of the initial population. Next, the Golden Sine Algorithm is integrated to refine the search behavior. Finally, a Cauchy–Gaussian mutation strategy is incorporated in the later stages of iteration to further strengthen the global search capability. Extensive experimental results demonstrate that the proposed IDBO-PTCN-GRU model significantly outperforms comparison models across all evaluation metrics. Specifically, the mean absolute error (MAE), mean absolute percentage error (MAPE), and root mean square error (RMSE) were reduced by 15.01%, 14.44%, and 14.42%, respectively, while the coefficient of determination (R 2 ) increased by 2.13%. This research provides a novel approach to enhancing the accuracy of electrical load forecasting.

Suggested Citation

  • Renxi Gong & Zhihuan Wei & Yan Qin & Tao Liu & Jiawei Xu, 2024. "Short-Term Electrical Load Forecasting Based on IDBO-PTCN-GRU Model," Energies, MDPI, vol. 17(18), pages 1-24, September.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:18:p:4667-:d:1481217
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    References listed on IDEAS

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    Full references (including those not matched with items on IDEAS)

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