Energy storage configuration method, device and equipment of photovoltaic off-grid system

The invention belongs to the field of energy storage equipment configuration, and particularly discloses an energy storage configuration method, device and equipment of a photovoltaic off-grid system, and the photovoltaic off-grid system comprises photovoltaic equipment, electric equipment and energy storage equipment. The energy storage equipment comprises a storage battery and a super capacitor; the method comprises the steps of designing an energy management model; the energy management model considers the service lives and storage parameters of the storage battery and the super capacitor, and controls the storage battery and the super capacitor of the energy storage equipment when to charge and discharge respectively by taking the control power as a reference; resources consumed by energy storage equipment input and operation and the light abandoning rate of photovoltaic equipment are taken as objective functions; and solving the objective function by adopting an improved grey wolf algorithm so as to obta