Risk assessment method and device, computer equipment and computer readable storage medium

• Main Authors: XIA MINGCONG, LIAO CHENCHUAN, CHEN YING, TONG RUI, HUANG XIFENG, LIN MINXI, RUAN QIYANG, DONG XUANCHANG, TONG JIAPENG, HU SHAOCHAO, LUO LINHUAN, ZHAO YU
• Format: Patent
• Language: Chinese; English
• Published: 06.08.2021
• Subjects: CALCULATING; COMPUTING; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention relates to a risk assessment method and device, computer equipment and a computer readable storage medium. The method comprises the following steps: determining a concave area position range, corresponding to each power grid fault type, of a target key site; for each power grid fault type, obtaining a target voltage of a target key site corresponding to the sunken area position range, and determining a loss quantized value corresponding to the power grid fault type according to the target voltage and the voltage tolerance data of each voltage sensitive device; determining the occurrence probability of a power grid fault corresponding to the power grid fault type in the sunken region position range according to the size of the sunken region position range; and determining a voltage sag risk quantized value of the target key site according to the probability and the loss quantized value corresponding to each power grid fault type. By adopting the method, the voltage sag risk of the station can be