Energy storage device of vacuum super-conducting magnetic suspension integrated flywheel

Abstract

The invention discloses an energy storage device of a vacuum super-conducting magnetic suspension integrated flywheel and relates to the field of energy storage of a flywheel. The device comprises a base, a bracket, a stepper motor, a vacuum cover, a vacuum cavity, a lead rail, a cooling device, a direct current brushless motor stator, an integrated flywheel rotor and a high-temperature super-conducting block; wherein the stepper motor, the lead rail and the cooling device are fixed on the base; the stepper motor and the lead rail are connected with the vacuum cavity and can control the field cooling height of a high-temperature super-conducting magnetic suspension bearing and the gap of a direct current brushless motor; the direct current brushless motor stator is fixed at the inner part of the vacuum cavity; the integrated flywheel rotor is arranged in a coaxial groove inside the vacuum cavity, and the high-temperature super-conducting block is arranged inside the cooling device and can be refrigerated by pouring liquid nitrogen into the cooling device. The energy storage device of the vacuum super-conducting magnetic suspension integrated flywheel has the advantages of being simple in structure and easy in operation; the rotation loss of the flywheel can be reduced by adopting the super-conducting magnetic suspension bearing; the energy consumption is reduced; the brushless motor is utilized as a drive, and the flywheel rotor adopts a shaftless design so as to reduce the motor loss.

Description

technical field [0001] The invention relates to the field of flywheel energy storage, in particular to a vacuum superconducting magnetic levitation integrated flywheel energy storage device. Background technique [0002] Flywheel energy storage is a new type of mechanical energy storage. Compared with battery energy storage, flywheel energy storage has high energy storage density, more charge and discharge times, long life, high efficiency, small size, wide working range, no environmental pollution, Advantages such as larger power peak can be obtained. At present, there are still some problems in the flywheel energy storage support mechanism. For example, the flywheel energy storage method using mechanical bearings has large friction, more losses, and low conversion efficiency; the flywheel energy storage method using electromagnetic suspension bearings requires a more complicated control system. , and the energy consumption is controlled, and the efficiency is reduced. C...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the large loss caused by the friction of the existing flywheel energy storage during high-speed rotation, the present invention uses high-temperature superconducting magnetic suspension bearings as the supporting mechanism of the flywheel, and designs a vacuum superconducting magnetic suspension integrated flywheel energy storage device

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