Fault recovery control method for power distribution network containing distributed power supply considering closed loop time delay

• Main Authors: XU SHOUDONG, PENG JUNZHEN, YE WENHUA, CHANG RONG, LI BANGYUAN, HUANG SHANKE, LI YINYIN, WANG YONG, TANG YIHENG, DANG JUNPENG, SHI HENGCHU, WANG JIAN, YANG CHUANXU, ZHANG BIHUA, ZHANG LI, OUYANG JINXIN, PAN RUI, YANG YUANHANG, YANG JIAQUAN
• Format: Patent
• Language: Chinese; English
• Published: 18.04.2023
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; SYSTEMS FOR STORING ELECTRIC ENERGY

The invention relates to the technical field of power system protection and control, in particular to a fault recovery control method for a power distribution network containing a distributed power supply and considering loop closing delay. The method includes the steps that a power distribution network collects operating parameters online, and whether a fault section is isolated is judged; the power distribution control center determines loop closing operation parameters on line; the power distribution control center calculates the optimal output and the optimal loop closing moment of each distributed power supply on line in real time before loop closing; the power distribution control center issues a fault recovery implementation scheme to the distributed power supply and the loop closing and opening switch, and then the implementation scheme is implemented immediately. According to the method, the impact current out-of-limit condition in the loop closing delay process is considered, so that the safety of a