Power load prediction method, device, equipment and medium

By employing a cross-modal alignment and large language model-based power load forecasting method, the problem of insufficient forecast stability in heterogeneous scenarios with multi-source data is solved, achieving high-precision, robust, and interpretable power load forecasting, which is applicable to short-term and medium-to-long-term load forecasting of power systems.

CN121886366APending Publication Date: 2026-04-17XI AN JIAOTONG UNIV
6 Cites 3 Cited by

Patent Information

Application Number
CN202610047377.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-14
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing technologies for power load forecasting suffer from insufficient forecast stability and weak interpretability in heterogeneous scenarios with multi-source data. Furthermore, large language models are prone to losing accurate numerical features and dynamic evolution patterns of the system during the time series to text conversion process, resulting in insufficient forecast accuracy and robustness.

Method used

A power load prediction method based on cross-modal alignment and a large language model is adopted. By constructing a dual-modal coding architecture and a cross-modal similarity alignment mechanism, historical power load data is input into the time series coding branch and the large language model. Time series embeddings and semantic embeddings are extracted respectively, and feature alignment between modes is achieved through a channel similarity retrieval mechanism. Finally, the power load prediction result is output.

Benefits of technology

It improves the accuracy, robustness, and interpretability of power load forecasting, and is applicable to short-term and medium-to-long-term load forecasting scenarios in power systems. It also reduces computational costs and enhances the model's generalization performance.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention provides a power load prediction method and device, equipment and a medium. Relates to the technical field of power load prediction. The method comprises the following steps: respectively mapping historical time sequence data from different data sources of a to-be-predicted power system into single-source time sequence characteristics representing overall time sequence change characteristics of the corresponding data sources, and modeling a dependency relationship of the single-source time sequence characteristics corresponding to the data sources, obtaining time sequence embedding representing overall dynamic evolution of the to-be-predicted power system; historical time sequence data from different data sources are converted into natural language texts expressing data source attributes, time sequence characteristics and power load associated information, the natural language texts corresponding to the data sources are coded, and prompt embedding including semantic information of the data sources is obtained; fusing the time sequence embedding and the prompt embedding to obtain cross-modal enhanced embedding; and decoding the cross-modal enhanced embedding to obtain a power load prediction result of the to-be-predicted power system.
Need to check novelty before this filing date? Find Prior Art