Superconductive and energy-storage magnetic suspension flywheel with high energy density

Abstract

The invention relates to a superconductive and energy-storage magnetic suspension flywheel with a high energy density, which can be used as energy storage equipment of electric power systems, vehicles and aviation and aerospace systems. The superconductive and energy-storage magnetic suspension flywheel mainly comprises a base, a sealing cover, a stator shaft mounting frame, a main shaft, an axial magnetic bearing, radial magnetic bearings, a motor, a wheel body assembly and a superconductive magnetic bearing, wherein the main shaft is fixed in the center of an inner cavity of the base through the stator shaft mounting frame; the axial magnetic bearing, the radial magnetic bearing, the motor, the radial magnetic bearing and the superconductive magnetic bearing are mounted from top to bottom; and the wheel body assembly is located in the center of the main shaft and is connected with the main shaft through the axial magnetic bearing and the radial magnetic bearings. All assemblies are reasonable and compact in layout, non-contact suspension of a flywheel wheel body is realized by using combined actions of the superconductive magnetic bearing and the common magnetic bearings, and the high energy density is realized by using high-speed rotation of the carbon fiber wheel body.

Description

technical field [0001] The invention is a superconducting magnetic levitation energy storage flywheel with high energy storage density. The kinetic energy of the flywheel is used to store energy, and the motor is used to realize the conversion between electrical energy and mechanical energy. It can be widely used in wind power generation, solar power generation, automobile energy supply, Intermittent power supply, satellite energy storage, high-power locomotive, electromagnetic gun, torpedo and many other aspects have great research value and market potential. Background technique [0002] The energy problem is a huge challenge faced by mankind in the 21st century, and the increasingly serious energy shortage has become an important factor restricting my country's economic and stable development. The development of new energy sources and the development of efficient and environmentally friendly distributed energy storage and energy-saving technologies have become the most im...

AI Technical Summary

Problems solved by technology

In the current superconducting maglev energy storage flywheel, in order to generate an excitation magnetic field in the superconductor, an additional mechanical lifting mechanism is required to make the excitation permanent magnet generate an excitation magnetic field in the combination of superconductors, which makes the structure of the superconducting maglev energy storage flywheel complicated.

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