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H-type bilateral magnetism gathering hot backup dynamic transmission all-in-one machine for flywheel energy storage

A flywheel energy storage and hot backup technology, applied in synchronous motors with static armatures and rotating magnets, magnetic circuit rotating parts, magnetic circuits, etc. Backup and other issues, to achieve the effect of improving the magnetic field strength, improving the torque density and density per unit mass, and improving the reliability of the system operation

Inactive Publication Date: 2016-12-14
HARBIN ENG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

None of them can achieve structural hot backup, and the torque density and power density are low

Method used

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  • H-type bilateral magnetism gathering hot backup dynamic transmission all-in-one machine for flywheel energy storage
  • H-type bilateral magnetism gathering hot backup dynamic transmission all-in-one machine for flywheel energy storage

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Embodiment Construction

[0014] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0015] The invention relates to a novel H-type double-side single-side magnetism-concentrating type hot-backup flywheel energy-storage integrated motor-generator. The all-in-one machine adopts a double-rotor structure, both upper and lower, as well as inside and outside, in which the inner and outer rotors are unilaterally concentrated magnetic structures, and the outer rotor is an outer magnetically concentrated structure to ensure that the magnetic field of the outer permanent magnet does not affect the inner layer. Iron core structure, the inner rotor is an inner magnetic accumulation structure to ensure that the magnetic field of the inner layer permanent magnet does not affect the outer layer iron core structure, so the inner (outer) layer iron core does not need to increase the thickness for the outer (inner) layer permanent magn...

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Abstract

The present invention provides an H-type bilateral magnetism gathering hot backup dynamic transmission all-in-one machine for flywheel energy storage. Birotor structures are employed up and down and inside and outside, wherein the inner layer rotor and the outer layer are unilateral magnetism gathering structure, and the outer rotor is an outer side magnetism gathering structure to ensure that the magnetic field of the outer layer permanent magnet does not influence the inner layer iron core structure; and the inner rotor is an inner side magnetism gathering structure to ensure that the magnetic field of the inner layer permanent magnet does not influence the iron core structure, so that the inner (outer) layer iron core does not need to increase the thickness for the outer (inner) layer permanent magnet field. The loss of the iron core is reduced while the space is saved, and the system efficiency is improved. The space is saved through improving the utilization rate of the stator winding, and the torque density is greatly improved. The upper and lower layer structures can realize the hot backup of a motor structure and have the fault-tolerant ability.

Description

technical field [0001] The invention relates to a motor-generator integrated machine, in particular to an H-type double-sided magnetic-gathering type hot-backup flywheel energy-storage integrated motor-generator machine. Background technique [0002] There are two main motor structures for the motor-generator integrated machine used in the flywheel energy storage system: one is the traditional motor structure, and the other is the dual-rotor motor structure. The literature "Research on a New Type of Magnetic Concentration Transverse Magnetic Field Permanent Magnet Motor" firstly analyzed the basic principle of the torque boost of the transverse magnetic field motor, and designed a new combination of Stator bilateral magnetic concentration transverse magnetic field permanent magnet motor. The structural characteristics of the prototype are introduced, the magnetic field analysis of the prototype is carried out by using the three-dimensional equivalent magnetic network method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K16/02H02K21/22H02K1/27H02K1/28
CPCH02K16/02H02K1/2766H02K1/2786H02K1/28H02K21/222H02K2213/03
Inventor 于雅莉张国胜王超吴迪陈彥国李琳
Owner HARBIN ENG UNIV
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