태양광 모듈의 전압 및 전류 파형을 이용한 부정합 진단 기법
Diagnosis Method of PV Module Mismatch using Voltage and Current Waveforms
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초록
TechniquesformismatchlossminimizationtoincreasethePV system efficiencyareunderdevelopmentrecently. Inthispaper,amethodtomakediagnosisofPV modulemismatchispresented,whichusesaconceptofoperating pointfactor.ThemethodisbasedonthefactthattheratiooftheincrementalconductanceofaPV moduleto instantaneousconductanceis1when themoduleisoperating atitsmaximum powerpoint.Thevariationsof modulevoltageandcurrentaretakingplacebythemaximum powerpointtrackerinthepowerconditioningunits ofPV system.TheeffectivenessofthemethodisverifiedthroughanapplicationtoarealPV system.
Abstract
TechniquesformismatchlossminimizationtoincreasethePV system efficiencyareunderdevelopmentrecently. Inthispaper,amethodtomakediagnosisofPV modulemismatchispresented,whichusesaconceptofoperating pointfactor.ThemethodisbasedonthefactthattheratiooftheincrementalconductanceofaPV moduleto instantaneousconductanceis1when themoduleisoperating atitsmaximum powerpoint.Thevariationsof modulevoltageandcurrentaretakingplacebythemaximum powerpointtrackerinthepowerconditioningunits ofPV system.TheeffectivenessofthemethodisverifiedthroughanapplicationtoarealPV system.
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