LI JIANG,WANG Shangyu.Prediction of ice load on power lines incorporating meteorological characteristics[J].ZHEJIANG ELECTRIC POWER,2026,45(04):3-11.DOI: 10.19585/j.zjdl.202604001.
Prediction of ice load on power lines incorporating meteorological characteristics
To address the frequent occurrence of ice-induced disasters on overhead transmission lines and the limitations of conventional icing prediction methods, this paper proposes a novel ice load prediction approach that systematically incorporates meteorological characteristics. First, based on the load patterns of transmission lines, meteorological conditions are classified into three distinct regime sets: load growth, equilibrium, and decay. The grey relational analysis is employed to integrate the weighted contributions of meteorological parameters into the Mahalanobis distance. Second, to resolve the fuzzy membership relationships between meteorological regimes, two physically interpretable indices are empirically defined: the ice growth potential (IGP) factor and ice melting potential (IMP) factor, which quantitatively characterize meteorological characteristics. Finally, membership degrees are combined with monitoring data to construct augmented historical samples embedding meteorological characteristics, and a support vector machine (SVM) is applied for ice load prediction. Case studies compare three training paradigms: meteorological parameters only, fuzzy classification of meteorological processes, and the proposed method. Results demonstrate that the proposed model achieves higher prediction accuracy.
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