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High-capacity and high-efficiency magnetic suspension flywheel energy storage device

A flywheel energy storage and high-efficiency technology, applied in the direction of electromechanical devices, mechanical energy control, electrical components, etc., can solve the problems that high-speed flywheels have no advantages, and achieve the effect of eliminating no-load loss, eliminating wind friction loss, and absorbing collision kinetic energy

Inactive Publication Date: 2014-04-16
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, for high-capacity electric energy storage, high-speed flywheels have no advantages

Method used

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  • High-capacity and high-efficiency magnetic suspension flywheel energy storage device
  • High-capacity and high-efficiency magnetic suspension flywheel energy storage device

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Embodiment

[0026] Such as figure 1 , figure 2 As shown, a large-capacity and high-efficiency magnetic levitation flywheel energy storage device includes a flywheel assembly, a motor, a heavy-duty magnetic bearing 4, a radial bearing 3, a vacuum-sealed housing, and a safety assembly. The flywheel assembly and safety assembly are all designed In the vacuum-sealed housing, the motor, heavy-duty magnetic bearing 4, and radial bearing 3 are all arranged between the flywheel assembly and the vacuum-sealed housing, and the heavy-duty magnetic bearing 4 is arranged above and below the motor, and the The flywheel assembly, the rotor of the motor and the heavy-duty magnetic bearing 4 form an integral rotor.

[0027] The flywheel assembly includes a flywheel body 13, a spoke support structure 12 and a rotating drum 10, the flywheel body 13 is connected to the rotating drum 10 through the spoke supporting structure 12, and the rotating drum 10 is respectively connected to the motor and the heavy-d...

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Abstract

The invention relates to a high-capacity and high-efficiency magnetic suspension flywheel energy storage device. The high-capacity and high-efficiency magnetic suspension flywheel energy storage device comprises a flywheel component, a motor, heavy-load magnetic suspension bearings, a radial bearing, a vacuum sealing shell and a safety component, the flywheel component and the safety component are all arranged in the vacuum sealing shell, the motor, the heavy-load magnetic suspension bearings and the radial bearing are all arranged between the flywheel component and the vacuum sealing shell, the heavy-load magnetic suspension bearings are arranged above and below the motor, and the flywheel component, a rotor of the motor and the heavy-load magnetic suspension bearing form a whole rotor. Compared with the prior art, the high-capacity and high-efficiency magnetic suspension flywheel energy storage device has high energy storage capacity, low loss, high work efficiency and high safety, and is suitable for power energy storage (primary frequency control and peak load shaving), a batch-type new energy power generation system, and the recovery and releasing of the frequency brake starting energy of track traffic.

Description

technical field [0001] The present invention relates to a flywheel energy storage device, in particular to a large energy storage device suitable for power storage (primary frequency regulation and peak shaving and valley filling), intermittent new energy power generation system, and energy recovery and release for frequent braking and starting of rail transit. High-capacity and high-efficiency magnetic levitation flywheel energy storage device. Background technique [0002] Flywheel energy storage is a kind of physical energy storage. Compared with chemical energy storage, flywheel energy storage has natural advantages in environmental protection, high reliability, long working life, and fast or slow charging and discharging speed. can't compare. The kinetic energy E stored by the flywheel is related to the moment of inertia J of the flywheel and the square of the rotational speed ω, E=0.5Jω 2 . As far as the current technology is concerned, most people focus on the rese...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/02
CPCY02E60/16
Inventor 梅柏杉梅菁暴国辉张海
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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