Method and system for evaluating working state of storage battery pack of transformer substation

The invention relates to the technical field of transformer substation storage battery packs, and discloses a transformer substation storage battery pack working state evaluation method and system, and the method comprises the steps: judging whether a transformer substation storage battery pack is in a full-floating-charge working state or a semi-floating-charge working state; obtaining a full-floating charge voltage change curve; acquiring a full-floating charging low-voltage duration value of the transformer substation storage battery with the full-floating charging voltage value lower than the full-floating charging voltage fluctuation minimum value in the full-floating charging working state; calculating to obtain a full floating charge low-voltage ratio in the working process of the transformer substation; calculating to obtain the full floating charge temperature change rate of the transformer substation storage battery pack in the working duration; a full-floating charging temperature and pressure fluc