Segmented spare power automatic switching implementation method and equipment based on anti-islanding strategy

The invention provides an anti-islanding strategy-based segmented spare power automatic switching implementation method and equipment applied to an electrochemical energy storage power station. The method comprises the steps of entering a charging state based on charging logic; when the electrochemical battery and the adjacent power grid form an unplanned island, starting the device based on the starting logic; after the device is started, a tripping instruction is sent based on the anti-islanding logic to control a main supply line switch of the corresponding bus to trip, and the starting logic corresponds to the corresponding anti-islanding protection logic; and after the island operation state is relieved, switching on a backup power supply based on backup power automatic switching logic, and recovering voltage-loss bus power supply. By adding an anti-islanding control strategy of the segmented spare power automatic switching device, the problem that an existing standard segmented spare power automatic swi