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A stator electric excitation flywheel energy storage motor

A flywheel energy storage and electric excitation technology, applied in electromechanical devices, electrical components, electric components, etc., can solve the problems of magnetic circuit interference and unstable suspension force, reduce bearing load, eliminate no-load standby loss, rotor simple structure

Active Publication Date: 2022-07-12
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects and improvement needs of the prior art, the present invention provides a stator electric excitation flywheel energy storage motor to solve the technical problems of magnetic circuit interference and suspension force instability in the existing flywheel energy storage motor

Method used

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  • A stator electric excitation flywheel energy storage motor
  • A stator electric excitation flywheel energy storage motor
  • A stator electric excitation flywheel energy storage motor

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Embodiment Construction

[0033] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0034] see figure 1 , combined with figure 2 and image 3 , the flywheel energy storage motor in this embodiment will be described in detail.

[0035] The present invention provides a stator electric excitation flywheel energy storage motor, which adopts a vertical installation method and includes: a flywheel rotor 1, a first stator iron core 201, a second stator iron core 202, an excitation win...

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Abstract

The invention discloses a stator electric excitation flywheel energy storage motor, which belongs to the technical field of electric energy storage. The upper and lower end caps on the lower two sides; the excitation winding between the two stator cores; the permanent magnet ring above the flywheel rotor; the upper and lower end caps are made of non-ferromagnetic materials, and the flywheel rotor and casing are made of iron magnetic material. In this way, the motor topology structure of the present invention can reduce the bearing load and loss, reduce the electromagnetic loss during the energy storage holding period, and improve the energy storage efficiency, and the overall structure of the motor is sturdy and durable, simple and reliable, with low standby loss and high cost performance; on the other hand, Since the upper end cover is made of non-ferromagnetic material, the magnetic flux generated by the excitation winding will not affect the magnetic flux generated by the permanent magnet ring on the flywheel, so that the electromagnetic force on the upper surface of the flywheel remains the same as the electromagnetic force when the excitation current is not applied. Consistent.

Description

technical field [0001] The invention belongs to the technical field of electric energy storage, and more particularly, relates to a stator electric excitation flywheel energy storage motor. Background technique [0002] With the economical and sustainable development of energy, energy storage technology has become a worldwide research topic. Among them, the flywheel energy storage technology has the advantages of being environmentally friendly, fast response speed of charge and discharge, long life, and high energy storage density. It has been highly valued by researchers at home and abroad, and has been widely used in many fields, such as power grid regulation. Peak frequency modulation, uninterruptible power supply, aerospace and other fields. Flywheel energy storage technology is a technology that converts electrical energy into mechanical energy of rotating objects, and then stores energy. In the energy storage stage, the system drives the motor to a certain speed thro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02K7/02H02K5/02H02K7/08H02K1/22H02K1/18
CPCH02K7/025H02K5/02H02K7/088H02K1/22H02K1/18Y02E60/16
Inventor 叶才勇
Owner HUAZHONG UNIV OF SCI & TECH
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