Reclosing control method and system based on improved anti-islanding protection strategy

• Main Authors: LIU WENPING, ZHOU HENG, LUO HAIXIN, DING YAO, MENG CHENXU, GUO FA'AN, MEI LONGJUN, LIN WEI, WANG ZHENGANG, CAI GENMAN, LI XINHAI, CHENG SIJU, YIN YANHE, HOU WEI, YUAN TUOLAI, QIU TIANYI
• Format: Patent
• Language: Chinese; English
• Published: 31.10.2023
• Subjects: CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS; GENERATION; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; PHYSICS; SYSTEMS FOR STORING ELECTRIC ENERGY; TESTING

The invention discloses a reclosing control method and system based on an improved anti-islanding protection strategy, and the method comprises the steps: judging whether fault tripping or manual tripping occurs when a 110kV incoming line switch trips, judging whether a 110kV incoming line fault is a transient fault or a permanent fault when the 110kV incoming line switch trips, carrying out the inter-tripping of a 10kV energy storage incoming line switch of an electrochemical energy storage station if the 110kV incoming line fault is the permanent fault, and carrying out the inter-tripping of the 10kV energy storage incoming line switch of the electrochemical energy storage station if the 110kV incoming line fault is the permanent fault; if the fault is a transient fault, a 10kV energy storage incoming line switch of the electrochemical energy storage station is tripped first, after a reclosing device of the 110kV incoming line switch is started and acts, whether the voltage frequency of a 10kV bus is kept s