Method, device and equipment for automatically cutting off and isolating switch of electrochemical energy storage station

• Main Authors: LIANG JINGMING, LIU WENPING, ZHOU HENG, ZENG WEI, LUO HAIXIN, MENG CHENXU, GUO FA'AN, LIN WEI, WANG ZHENGANG, FAN DEHE, CAI GENMAN, LI XINHAI, XU QIAOMING, YIN YANHE, QIU TIANYI, YAO GUANGJIU
• Format: Patent
• Language: Chinese; English
• Published: 27.10.2023
• 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 an automatic removal and isolation method, device and equipment for an electrochemical energy storage station switch. The method comprises the following steps: obtaining a removal command and initial electrical quantity data of a power system fault; according to the cutting command and the initial electrical quantity data, cutting off circuit breakers on the power grid side one by one by adopting NAND-NOR logical operation, and obtaining cut-off electrical quantity data after cutting off; according to the cut-off electrical quantity data, determining that a fault switch on the power grid side of the power system is cut off through AND logic operation and time delay, and obtaining cut-off information; isolating direct-current side components of the power system one by one through AND logic operation according to the removal information, the removal command and the removal electric quantity data, and obtaining isolated electric quantity data after isolation; according to the isolation e