Method and device for optimizing parameters of conventional direct-current low-voltage current limiting link

• Main Authors: TANG XIAOJUN, ZHU SHAOXUAN, GAO WENMAN, CHEN XIANG, HUO QIDI, HU YUANTING, ZHANG XIN, CAI NAN, WANG WENLONG, LI LIXIN, SHEN JIAKAI, WANG ZIQI, XIE YAN, LI HUILING, WANG QING
• Format: Patent
• Language: Chinese; English
• Published: 05.09.2023
• 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; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; 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 method and a device for optimizing parameters of a conventional direct-current low-voltage current limiting link. The method comprises the following steps: acquiring multiple groups of operation mode data; according to the multiple groups of operation mode data, obtaining a short-circuit ratio index of a direct-current receiving end near-region power grid under the multiple operation modes; sequentially selecting each operation mode in the plurality of operation modes as a current operation mode, and carrying out the following steps until all operation modes are traversed: judging the short-circuit ratio index of the direct-current receiving end near-region power grid in the current operation mode and a preset threshold value, and according to a judgment result, determining the short-circuit ratio index of the direct-current receiving end near-region power grid in the current operation mode; and adjusting the conventional direct-current low-voltage current limiting link parameters of