YANG Yun, CHENG Yongfeng, XIE Xiangzhong, et al. Construction of an active distribution network load forecasting model with distributed energy storage system[J]. Energy Storage Science and Technology, 2026, 15(4): 1302-1311.
YANG Yun, CHENG Yongfeng, XIE Xiangzhong, et al. Construction of an active distribution network load forecasting model with distributed energy storage system[J]. Energy Storage Science and Technology, 2026, 15(4): 1302-1311.DOI: 10.19799/j.cnki.2095-4239.2026.0189.
Construction of an active distribution network load forecasting model with distributed energy storage system
Short-term load forecasting (STLF) in active distribution networks (ADNs) with distributed energy storage systems (DESS) is complicated by operational disturbances
pronounced voltage fluctuations
and highly non-stationary load patterns. To improve forecasting accuracy while ensuring physical consistency under DESS integration
a short-term load forecasting model integrating voltage fluctuation awareness and topological constraints is proposed. First
to handle missing or discontinuous DESS data in practical engineering scenarios
a power reconstruction method is developed based on nodal power balance and temporal continuity constraints
thereby improving the completeness of key input variables. Second
to capture the influence of DESS-induced local voltage variations on load response
a nodal voltage fluctuation index is constructed to refine voltage features
followed by the fusion of historical load
reconstructed DESS power
and time-aligned voltage characteristics. A hybrid LSTM-PatchTST framework is then established
in which LSTM captures local temporal dynamics and PatchTST characterizes long-term dependencies
while residual correction and ensemble learning further improve model stability. In addition
DESS capacity boundaries and line flow limits are incorporated into the training process as topological constraint loss terms to enhance model adaptability to the physical operating limits of the grid. Simulation results based on half-year operational data from a real ADN demonstrate that the proposed model accurately tracks load trends during active DESS regulation. At a 15-minute resolution
the model achieves a mean absolute percentage error (MAPE) of 2.73%
corresponding to a reduction of 23.53% and 32.43% compared with two benchmark methods. The results indicate that the synergistic integration of power reconstruction
voltage awareness
and topological constraints significantly enhances the ability of the model to represent source-network-load-storage coupling and provides reliable data support for DESS dispatch and smart grid operation.
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