Energy storage device of magnetic suspension flywheel

A flywheel energy storage and magnetic levitation technology, which is applied to electromechanical devices, magnetic attraction or thrust holding devices, and mechanical energy control, can solve the problems of complex structure of auxiliary systems, unsuitability for popularization, and increase of axial size, etc., to achieve Effects of improving reliability, improving energy conversion efficiency, and shortening axial dimension

Inactive Publication Date: 2012-05-02
SHANDONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many of the existing magnetic levitation flywheel batteries at home and abroad use superconducting magnetic levitation bearings to reduce frictional resistance, but the auxiliary system required by such bearings has a complex structure and high production costs, which is not suitable for popularization
In addit...

Method used

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  • Energy storage device of magnetic suspension flywheel
  • Energy storage device of magnetic suspension flywheel
  • Energy storage device of magnetic suspension flywheel

Examples

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Embodiment Construction

[0021] Such as figure 1 As shown, a magnetic levitation flywheel energy storage device includes an energy storage and conversion part, a magnetic levitation support part and an auxiliary part. The above-mentioned energy storage and conversion part includes flywheel 12, rotor and stator part of motor / generator 9; magnetic levitation support part includes radial hybrid conical magnetic bearing 6, axial magnetic bearing 10, axial sensor 1, radial sensor 3, Protect the bearing 2; the auxiliary part includes the housing 11, the installation shaft 8, the fastening nut 4 and the installation screw 5. Among them, the protective bearing 2, the radial hybrid conical magnetic bearing 6, the motor / generator 9, the axial magnetic bearing 10, the flywheel 12, the axial magnetic bearing 10, the radial hybrid conical magnetic bearing 6 and the protective bearing 2 on the installation shaft The axial direction is arranged sequentially from top to bottom, wherein the flywheel 12, the rotor par...

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Abstract

The invention discloses an energy storage device of magnetic suspension flywheel, comprising an energy storing and converting part, a magnetic suspension supporting part and an auxiliary part, wherein the energy storing and converting part includes a flywheel, a rotor of the motor/generator and a stator part; the magnetic suspension supporting part comprises a radial magnetic bearing, an axial magnetic bearing, an axial sensor, a radial sensor and a protection bearing; the auxiliary part includes a shell and a mounting shaft; the radial magnetic bearing is a radial mixed conical magnetic bearing; the suction disk of each axial magnetic bearing is respectively installed on two side wheel surfaces of the flywheel; the radial mixed conical magnetic bearing and the axial magnetic bearing are non-mechanically contacted magnetic suspension bearings; the mounting shafts of the energy storing and converting part, the magnetic suspension supporting part and the auxiliary part are sealed in the shell of the auxiliary part; the inside of the shell is in vacuum state. The invention has the characteristics of compact structure, high specific energy density and discharge depth, long service life, low power consumption and stable performance without pollution.

Description

technical field [0001] The invention relates to a magnetic levitation flywheel energy storage device, which can be used in aerospace (satellite energy storage battery, integrated power and attitude control), military (high-power electromagnetic gun), electric power (power peak regulation), communication (UPS), automobile industry (electric vehicles) and other fields. Background technique [0002] The magnetic levitation flywheel energy storage device, also known as the magnetic levitation flywheel battery, uses a high-speed rotating flywheel to store energy. It is being favored by all walks of life for its high specific power, high specific energy, fast charging, long life and no chemical pollution. Attention, it has been used in military and civilian industries such as automobiles, trains, aerospace, and aviation abroad. [0003] When the maglev flywheel battery is charging, its motor acts as a motor, which drives the flywheel to rotate at a high speed, converting electric...

Claims

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Application Information

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IPC IPC(8): H02K7/02H02K7/09H02N15/00F16C32/04
CPCY02E60/16
Inventor 肖林京于志豪张绪帅常龙
Owner SHANDONG UNIV OF SCI & TECH
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