CN107104528A - A kind of high-performance Halbach type p-m rotors for flywheel energy storage system - Google Patents

A kind of high-performance Halbach type p-m rotors for flywheel energy storage system Download PDF

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Publication number
CN107104528A
CN107104528A CN201710319260.9A CN201710319260A CN107104528A CN 107104528 A CN107104528 A CN 107104528A CN 201710319260 A CN201710319260 A CN 201710319260A CN 107104528 A CN107104528 A CN 107104528A
Authority
CN
China
Prior art keywords
permanent magnet
performance
armature spindle
rotors
energy storage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710319260.9A
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Chinese (zh)
Inventor
张明军
郑建勇
陈军委
王家彩
吕奇超
刘镍
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzhou Roprun Electric Equipment Co Ltd
Original Assignee
Suzhou Roprun Electric Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Suzhou Roprun Electric Equipment Co Ltd filed Critical Suzhou Roprun Electric Equipment Co Ltd
Priority to CN201710319260.9A priority Critical patent/CN107104528A/en
Publication of CN107104528A publication Critical patent/CN107104528A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K1/00Details of the magnetic circuit
    • H02K1/06Details of the magnetic circuit characterised by the shape, form or construction
    • H02K1/22Rotating parts of the magnetic circuit
    • H02K1/27Rotor cores with permanent magnets
    • H02K1/2706Inner rotor
    • H02K1/272Inner rotor where the magnetisation axis of the magnets is radial or tangential
    • H02K1/274Inner rotor where the magnetisation axis of the magnets is radial or tangential consisting of a plurality of circumferentially positioned magnets
    • H02K1/2753Inner rotor where the magnetisation axis of the magnets is radial or tangential consisting of a plurality of circumferentially positioned magnets consisting of magnets or groups of magnets arranged with alternating polarity
    • H02K1/276Magnets embedded in the magnetic core
    • H02K1/2766Magnets embedded in the magnetic core having a flux concentration effect
    • H02K1/2773Magnets embedded in the magnetic core having a flux concentration effect consisting of tangentially magnetized radial magnets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/02Additional mass for increasing inertia, e.g. flywheels
    • H02K7/025Additional mass for increasing inertia, e.g. flywheels for power storage
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16Mechanical energy storage, e.g. flywheels or pressurised fluids

Abstract

The invention discloses a kind of high-performance Halbach type p-m rotors for flywheel energy storage system, including armature spindle and the Halbach type permanent magnet arrays being bonded on armature spindle;The Halbach types permanent magnet array is alternately arranged by the permanent magnet blocks radially and circumferentially magnetized to be constituted, and magnetizing direction is successively with 90 ° of changes;The bottom of every piece of permanent magnet blocks is in arc-shaped, and the arc diameter of every piece of permanent magnet blocks bottom is respectively less than the diameter of armature spindle;A kind of high-performance Halbach type p-m rotors for flywheel energy storage system of the present invention, the bottom circular arc of permanent magnet blocks, actually on the basis of straight line or oblique line, the shape of local directed complete set permanent magnet blocks, the harmonic content of permanent magnet array Distribution of Magnetic Field is significantly reduced, Distribution of Magnetic Field is more nearly sinusoidal shape;It is also possible to increase permanent magnetism magnetomotive force, reduce physochlaina infudibularis amount, the final low-loss for obtaining motor and excellent electromagnetic performance.

Description

A kind of high-performance Halbach type p-m rotors for flywheel energy storage system
Technical field
The present invention relates to technical field of motors, specifically a kind of Halbach type permanent magnet rotor structures with circular arc.
Background technology
High speed electric/power generation integrated motor is the core component of flywheel energy storage system.Traditional high-speed high-power motor Rotor nearly all uses tile shape, easy to manufacture, and technique is simple, but may only generally be adjusted during optimization design magnetic patch thickness and Pole embrace, limits raising and the utilization rate of permanent magnet performance, is difficult between numerous optimization aims reach balance sometimes.
When designing high speed electric/power generation integrated motor, larger permanent magnetism magnetomotive force is not only needed to reduce stator winding The physochlaina infudibularis amount such as thermic load, current density, and need low-down magnetic field harmonics content to reduce the eddy-current loss of motor;Permanent magnetism Magnetomotive enhancing usually requires the usage amount of increase permanent magnet, while the decrease of permanent magnetic field harmonic content also requires that magnetic field Rationally design, for example, the magnetic field of permanent magnet of Sine distribution can just obtain more excellent counter electromotive force Sine distribution as far as possible. To achieve the above object, one of which is simple and effective method is exactly adjustment by permanent magnetism shape, at the same meet compared with The requirement of big magnetomotive force and near sinusoidal Distribution of Magnetic Field.Therefore, the selection and optimization of p-m rotor shape, in motor electromagnetically There is positive effect in terms of energy, loss control and cost control.
The content of the invention
For above-mentioned technical problem, the purpose of the present invention is:Propose a kind of height for flywheel energy storage system Performance Halbach type p-m rotors.
What the technical solution of the present invention was realized in:A kind of high-performance Halbach for flywheel energy storage system Type p-m rotor, including armature spindle and the Halbach type permanent magnet arrays being bonded on armature spindle;The Halbach types permanent magnetism Volume array is alternately arranged by the permanent magnet blocks radially and circumferentially magnetized and constituted, and magnetizing direction is successively with 90 ° of changes;Every piece of permanent magnet The bottom of block is in arc-shaped, and the arc diameter of every piece of permanent magnet blocks bottom is respectively less than the diameter of armature spindle.
It is preferred that, the armature spindle is non-magnetic nonmetallic materials.
It is preferred that, the armature spindle is arranged on the inner ring of Halbach type permanent magnet arrays.
It is preferred that, the armature spindle is arranged on the outer ring of Halbach type permanent magnet arrays.
Due to the utilization of above-mentioned technical proposal, the present invention has following advantages compared with prior art:
A kind of high-performance Halbach type p-m rotors for flywheel energy storage system of the present invention, the bottom circular arc of permanent magnet blocks, Actually on the basis of straight line or oblique line, the shape of local directed complete set permanent magnet blocks significantly reduces permanent magnet array magnetic The harmonic content of field distribution, makes Distribution of Magnetic Field be more nearly sinusoidal shape;It is also possible to increase permanent magnetism magnetomotive force, reduce heat Parameter, the final low-loss for obtaining motor and excellent electromagnetic performance.
Armature spindle can use non-magnetic nonmetallic materials, can not only mitigate rotor weight, and completely eliminate and lead The vortex that body-sensing is answered, reduces rotor loss, improves electric efficiency, obtains linear electric machine model;It is overall not only to answer For inner rotor motor, external rotor electric machine can also be applied to, application is wider.
Brief description of the drawings
Technical solution of the present invention is described further below in conjunction with the accompanying drawings:
Accompanying drawing 1 is real for a kind of one kind of high-performance Halbach type p-m rotors for flywheel energy storage system of the present invention Apply the schematic diagram of mode;
Accompanying drawing 2 is another for a kind of high-performance Halbach type p-m rotors for flywheel energy storage system of the present invention The schematic diagram of embodiment.
Embodiment
Illustrate the present invention below in conjunction with the accompanying drawings.
Embodiment 1:
As shown in figure 1, a kind of high-performance Halbach type p-m rotors for flywheel energy storage system, including circumferentially magnetize forever Magnet block 2 and the permanent magnet blocks of radial magnetizing 2 and armature spindle 1;The staggered row of permanent magnet blocks 2 wherein circumferentially with radial magnetizing Row, magnetizing direction forms permanent magnet array with 90 ° of changes;Permanent magnet array surface mount is formed forever in the outer wall of armature spindle 1 Magnetic inner rotor core, threephase stator winding is positioned over the outside of permanent magnetism internal rotor.
The permanent magnet blocks 2 and the bottom of the permanent magnet blocks 2 of radial magnetizing that the Zhou Zhouxiang magnetizes are circular shapes, and every piece forever The arc diameter of the bottom of magnet block 2 is respectively less than the diameter of armature spindle 1, and the bottom of the permanent magnet blocks 2 refers to permanent magnet blocks 2 and three The close side of phase stator winding, in the present embodiment for permanent magnet array outer ring side;Its essence is in straight line or tiltedly On the basis of line connection, by the local directed complete set of permanent magnet blocks shape, by the optimization design of size, permanent magnetism magnetomotive force is being improved While, the magnetic signature of more Sine distribution is obtained, so as to reduce magnetic field harmonics content as much as possible, permanent magnet synchronous electric is reduced The torque fluctuations and eddy-current loss of machine.
The armature spindle 1 uses non-magnetic nonmetallic materials, on the one hand alleviates weight, on the other hand, completely eliminates Due to the eddy-current loss that conductor is present and triggers, the efficiency of motor is improved, obtains and is easier to realize high-precision motion control Electromechanical linear model.
Embodiment 2:
As shown in Fig. 2 a kind of high-performance Halbach type p-m rotors for flywheel energy storage system, including Zhou Zhouxiang magnetizes Permanent magnet blocks 2 and the permanent magnet blocks of radial magnetizing 2 and hollow armature spindle 1;Permanent magnet blocks 2 wherein circumferentially with radial magnetizing It is staggered, magnetizing direction forms permanent magnet array with 90 ° of changes;Permanent magnet array surface mount is in hollow armature spindle 1 Inwall, forms permanent-magnetic outer rotor structure, and threephase stator winding is positioned over the inner side of permanent-magnetic outer rotor.
The permanent magnet blocks 2 and the bottom of the permanent magnet blocks 2 of radial magnetizing that the Zhou Zhouxiang magnetizes are circular shapes, and every piece forever The arc diameter of the bottom of magnet block 2 is respectively less than the diameter of armature spindle 1, and the bottom of the permanent magnet blocks 2 refers to permanent magnet blocks 2 and three The close side of phase stator winding, in the present embodiment for permanent magnet array inner ring side;Its essence is in straight line or tiltedly On the basis of line connection, by the local directed complete set of permanent magnet blocks shape, by the optimization design of size, permanent magnetism magnetomotive force is being improved While, the magnetic signature of more Sine distribution is obtained, so as to reduce magnetic field harmonics content as much as possible, permanent magnet synchronous electric is reduced The torque fluctuations and eddy-current loss of machine.
The armature spindle 1 uses non-magnetic nonmetallic materials, on the one hand alleviates weight, on the other hand, completely eliminates Due to the eddy-current loss that conductor is present and triggers, the efficiency of motor is improved, obtains and is easier to realize high-precision motion control Electromechanical linear model.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar can understand present disclosure and be carried out, and it is not intended to limit the scope of the present invention, all according to the present invention The equivalent change or modification that Spirit Essence is made, should all cover within the scope of the present invention.

Claims (4)

1. a kind of high-performance Halbach type p-m rotors for flywheel energy storage system, it is characterised in that:Including armature spindle and viscous Tie in the Halbach type permanent magnet arrays on armature spindle;The Halbach types permanent magnet array is by radially and circumferentially magnetizing forever Magnet block is alternately arranged composition, and magnetizing direction is successively with 90 ° of changes;The bottom of every piece of permanent magnet blocks is in arc-shaped, every block of permanent magnetism The arc diameter of body block bottom is respectively less than the diameter of armature spindle.
2. a kind of high-performance Halbach type p-m rotors for flywheel energy storage system according to claim 1, its feature It is:The armature spindle is non-magnetic nonmetallic materials.
3. a kind of high-performance Halbach type p-m rotors for flywheel energy storage system according to claim 1, its feature It is:The armature spindle is arranged on the inner ring of Halbach type permanent magnet arrays.
4. a kind of high-performance Halbach type p-m rotors for flywheel energy storage system according to claim 1, its feature It is:The armature spindle is arranged on the outer ring of Halbach type permanent magnet arrays.
CN201710319260.9A 2017-05-09 2017-05-09 A kind of high-performance Halbach type p-m rotors for flywheel energy storage system Pending CN107104528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710319260.9A CN107104528A (en) 2017-05-09 2017-05-09 A kind of high-performance Halbach type p-m rotors for flywheel energy storage system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710319260.9A CN107104528A (en) 2017-05-09 2017-05-09 A kind of high-performance Halbach type p-m rotors for flywheel energy storage system

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CN107104528A true CN107104528A (en) 2017-08-29

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108429370A (en) * 2017-12-26 2018-08-21 珠海磐磊智能科技有限公司 Motor
KR20190024769A (en) * 2017-08-30 2019-03-08 레이크뷰 이노베이션 리미티드 Multipole rotor with loaf-shaped or piece-of-cake-like permanent magnets
CN109560634A (en) * 2018-12-21 2019-04-02 苏州腾冉电气设备股份有限公司 A kind of Halbach type permanent-magnetic outer rotor mounting structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190024769A (en) * 2017-08-30 2019-03-08 레이크뷰 이노베이션 리미티드 Multipole rotor with loaf-shaped or piece-of-cake-like permanent magnets
KR102128164B1 (en) * 2017-08-30 2020-06-30 레이크뷰 이노베이션 리미티드 Multipole rotor with loaf-shaped or piece-of-cake-like permanent magnets
CN108429370A (en) * 2017-12-26 2018-08-21 珠海磐磊智能科技有限公司 Motor
CN109560634A (en) * 2018-12-21 2019-04-02 苏州腾冉电气设备股份有限公司 A kind of Halbach type permanent-magnetic outer rotor mounting structure

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