ELECTROMECHANICAL ENERGY STORAGE Russian patent published in 2023 - IPC H02K55/00 H02K7/02 H02K26/00 F16F15/315 H02K1/27 

FIELD: electrical engineering.

SUBSTANCE: electromechanical superconducting energy storage device contains a modular housing. In the upper module of the housing there is an inverted synchronous motor-generator with a stator and windings, permanent excitation magnets, a rotor flywheel with supporting permanent magnets and a guide bearing with a bearing, a magnetic system for radial stabilization of the rotor flywheel containing permanent magnets on the outer surface of the rotor flywheel and oppositely magnetized magnets on the inner surface of the motor generator module housing. The other module contains a nitrogen cryostat and superconducting plates. Permanent excitation magnets of the motor-generator are at the same time permanent magnets of the radial stabilization system and are installed in the groove of the side surface of the rotor flywheel, which has a protrusion for a rigid attachment of the magnet. The geometric centre of the groove and the permanent magnet installed in it are located on the line of the centre of gravity of the rotor flywheel. Thus, a rigid attachment of the magnetic system to the rotor flywheel is provided, the number of permanent magnets on the rotor flywheel is reduced, and the task of balancing the rotor flywheel is facilitated. Balancing and matching the geometric centres of the groove, permanent magnets with the line of the centre of gravity of the rotor flywheel reduces the levels of beats that occur during external influences on the body of the energy storage device, especially in mobile applications. Reducing the beats of the rotor-flywheel allows you to increase the speed of rotation of the rotor flywheel, thereby increasing the specific characteristics of the energy storage device.

EFFECT: increase in the reliability of the energy storage device and increasing the specific characteristics of the energy storage device.

1 cl, 2 dwg