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Integrated switched reluctance machine flywheel energy storage device

A switched reluctance motor and flywheel energy storage technology, applied in electromechanical devices, control mechanical energy, electrical components, etc., can solve the problems of reducing system reliability and increasing system development costs, so as to improve efficiency and safety, and stabilize high-speed rotation Mechanical properties, the effect of ensuring smooth running

Inactive Publication Date: 2010-10-13
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional switched reluctance motor flywheel energy storage devices all regard the flywheel and the motor as two independent units, and then connect them through couplings (see attached figure 1 ), which not only increases the development cost of the system, but also reduces the reliability of the system

Method used

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  • Integrated switched reluctance machine flywheel energy storage device
  • Integrated switched reluctance machine flywheel energy storage device
  • Integrated switched reluctance machine flywheel energy storage device

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Experimental program
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Embodiment Construction

[0019] refer to figure 2 —— Figure 5 , figure 2 It is a schematic diagram of the integrated switched reluctance motor flywheel energy storage device of the present invention. The device is mainly divided into two parts: an integrated switched reluctance motor flywheel and a bidirectional power converter. image 3 It is a structural schematic diagram of the corresponding integrated switched reluctance motor flywheel. In the figure, the number of poles of the switched reluctance motor stator 1 is 6; , which is made of anisotropic composite material, integrates the flywheel and the rotor, simplifies the energy storage structure of the flywheel, and also improves the safety of the flywheel when it runs at high speed; the joint action of the upper magnetic suspension bearing 3 and the lower magnetic suspension bearing 4 guarantees The rotor can run with high efficiency and high speed; on the one hand, the vacuum housing 5 can better ensure the high efficiency and high speed o...

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Abstract

The invention relates to an integrated switched reluctance machine flywheel energy storage device, belonging to the technical field of the design and preparation of the electric motor. The flywheel energy storage device comprises a switched reluctance machine and a bidirectional power inverter connected with the output end of the electric motor, wherein the outside of the switched reluctance machine is provided with a vacuum shell, the inside of the shell is provided with a stator, a rotor, an upper magnetic suspension bearing and lower magnetic suspension bearing used for supporting the rotor; the switched reluctance machine has an external rotor structure, the rotor is also used as the flywheel, a rotary inner bushing is fixed between the rotor and the stator, and a rotary outer bushing is fixed between the rotor and the vacuum shell. The device of the invention cancels the intermediate transmission unit through which the traditional flywheel is connected with the electric motor in the coupling manner and the like, thus reducing the noise and friction of the system and increasing the efficiency and reliability of the system.

Description

technical field [0001] The invention belongs to the technical field of motor design and manufacture, and in particular relates to a flywheel energy storage device for a switched reluctance motor. Background technique [0002] The forms of electrical energy storage can be divided into four categories: mechanical energy storage (such as pumped water storage, compressed air energy storage, flywheel energy storage, etc.), chemical energy storage (such as sodium-sulfur batteries, lead-acid batteries, nickel-cadmium batteries, supercapacitors, etc. ), electromagnetic energy storage (such as superconducting electromagnetic energy storage, etc.) and phase change energy storage (such as ice storage, etc.). Flywheel energy storage has the advantages of high energy density, high efficiency, short construction period, long life, light weight, fast charging, unlimited charge and discharge times, no pollution, insensitivity to temperature, and easy measurement of discharge depth. Power g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/02
CPCY02E60/16
Inventor 方红伟夏长亮肖朝霞贾东方
Owner TIANJIN UNIV
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