基于APO-MVMD-Transformer的电缆故障定位方法

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中图分类号：TM247 文献标志码：A文章编号：1002-4026（2025）06-0094-13开放科学（资源服务）标志码（OSID）

Cable fault location method based on APO-MVMD-Transformer

SUN Jie'， SUN Yuwei'，HU Guodong2*，YIN Haihai'， JIANG Xuyong'，MA Hongzhong’

（1.State Grid Nantong Power Supply Company，Nantong 226000，China; 2.School of Electrical and Power Engineering，Hohai University，Nanjing ，China）

Abstract：Toaddressthe lowaccuracyand reliabityof existing power cablefault-location methods，anewcable faultlocation methodbasedonAPO-MVMD-Transformerisproposed in this study.Thecollectedcablefault signalis decoupled through phase-mode transformation toobtainthefault traveling wave signal.TheArcticpuffnoptimization（APO） optimized multivariate variational mode decomposition（MVMD）parametersare then used todecompose this traveling wave signal.The Teager energyoperatorisapplied toextract instantaneous energyvariations inthe high-frequencymodal components，allowing theidentificationof thewavefront arivaltimes.Tesamplingpointscorresponding totese timesare thenusedas feature values to construct afeature dataset，which isfurther employed to optimize the APO-Transformedbased model.Finaly，featuredatasetareinput intothe APO-Transformer-based locationmodel to locatecable faults. Results showed thatthe proposed model exhibitedacoeficient of determination as highas0.999 91，a relative faultlocation error within 1% ，and a distance error within 100m ，thereby demonstrating high fault location accuracy.

Key Words：fault location；phase-mode transformation；Arcticpufinoptimization；mutivariatevariationalmode decomposition；Teager energy；Transformer

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