A Forecasting Method of Pollution Flashover Voltage of Insulators Based on Robust Regression-中国期刊网

摘要 Inviewofthelimitationsinthepredictionofpollutionflashovervoltagebyleastsquaresregression,amethodtopredictpollutionflashovervoltagebyrobustregressionisproposed.Accordingtotestingvoltageandthedataofsaltdepositdensity(ρSDD)andnon-solubledepositdensity(ρNSDD),theregressioncoefficientissolvedbyacomplexweightingleastsquareiterationalgorithm.Initerativecalculations,theweightfunctionisadopted,inwhichtheweightcoefficientisthefunctionoftheresidualerroroflastiterationtoweakentheinfluenceofsingularvaluesontheregressioncoefficient.ThecharacteristicexponentdenotingρSDDinfluenceandcharacteristicexponentdenotingρNSDDinfluencearemappedbytheregressioncoefficient,andthusthepollutionflashovervoltageofinsulatorscanbepredicted.Throughthecomparisonoftestresults,robustregressionresultsandleastsquaresregressionresults,theeffectivenessoftheproposedrobustregression-basedforecastingmethodisverified.

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A Forecasting Method of Pollution Flashover Voltage of Insulators Based on Robust Regression

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A Forecasting Method of Pollution Flashover Voltage of Insulators Based on Robust Regression

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