Lightning arrester operation state detection method based on digital twinning

The invention discloses a lightning arrester operation state detection method based on digital twinning, and the method comprises the steps: obtaining equipment parameters, operation data and external information of a to-be-modeled lightning arrester, and obtaining the installation information of th...

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Bibliographische Detailangaben
Hauptverfasser:	LU RENMENG, WANG JIEFENG, SUN JUN, TIAN YUEWEI, WANG CE, LONG YUJIANG, LI XUN, GAN RUNDONG, WEI WEI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CALCULATING COMPUTING COUNTING DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES ELECTRIC DIGITAL DATA PROCESSING MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR TESTING
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Beschreibung
Zusammenfassung:	The invention discloses a lightning arrester operation state detection method based on digital twinning, and the method comprises the steps: obtaining equipment parameters, operation data and external information of a to-be-modeled lightning arrester, and obtaining the installation information of the lightning arrester in a power grid topology; feature mapping is carried out on a lightning arrester entity from an electrical angle, and a lightning arrester digital twinborn model considering lightning arrester aging factors is established according to an improved resistive current algorithm; correcting the lightning arrester digital twinborn model by considering interphase stray capacitance interference; on the basis of a digital twinborn model, lightning arrester online detection considering harmonic influence is carried out, a harmonic analysis method is used for providing lightning arrester aging state evaluation, and lightning arresters are divided into three grades of non-aging, aging middle-term and compl