Power grid short-circuit safety intelligent decision-making method and system fusing expert knowledge

• Main Authors: LI ZHENG, CHEN YONG, FENG JING, XU PENGFEI, YANG HONGYING, MA SHIYING, DU SAN'EN, YANG XUETAO, SONG DUNWEN, YU SHUYAN, XIE JIAZHENG, LIU KAIXIN, LIU DAOWEI, ZHAO GAOSHANG
• Format: Patent
• Language: Chinese; English
• Published: 18.12.2020
• Subjects: CALCULATING; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; COMPUTING; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; COUNTING; DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FORADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORYOR FORECASTING PURPOSES; ELECTRICITY; GENERATION; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE,COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTINGPURPOSES, NOT OTHERWISE PROVIDED FOR

The invention discloses a power grid short-circuit safety intelligent decision-making method and system fusing expert knowledge, and the method comprises the steps of carrying out the short-circuit current calculation according to the basic operation mode power flow data of a power grid and a transient stability model, and obtaining a short-circuit current standard-exceeding bus; generating an expert knowledge rule base according to the power grid basic operation mode power flow data and the short-circuit current standard-exceeding bus; generating an extended operation mode set according to the power grid basic operation mode trend data and the expert knowledge rule base; according to the extended operation mode set and the transient stability model, performing island detection and short-circuit current calculation check of the extended operation mode set, and forming a short-circuit safe operation mode set; and performing short-circuit safety evaluation index calculation on the short-circuit safety operation