CN109586440A - A kind of five phase magnetoes based on combination Halbach permanent magnet array - Google Patents
A kind of five phase magnetoes based on combination Halbach permanent magnet array Download PDFInfo
- Publication number
- CN109586440A CN109586440A CN201811323361.4A CN201811323361A CN109586440A CN 109586440 A CN109586440 A CN 109586440A CN 201811323361 A CN201811323361 A CN 201811323361A CN 109586440 A CN109586440 A CN 109586440A
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- Prior art keywords
- permanent magnet
- combination
- halbach permanent
- magnet array
- phase
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/278—Surface mounted magnets; Inset magnets
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
- H02K2201/03—Machines characterised by aspects of the air-gap between rotor and stator
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Linear Motors (AREA)
Abstract
The invention discloses a kind of five phase magnetoes based on combination Halbach permanent magnet array, including stator core, rotor core, shaft, five phase windings and several combination Halbach permanent magnet arrays, five phase windings are placed in the slot of stator core, each combination Halbach permanent magnet array is respectively as the pole N magnetic pole or the pole S magnetic pole, each combination Halbach permanent magnet array is successively pasted onto the surface of rotor core, and each combination Halbach permanent magnet array is made of two conventional segmented Halbach permanent magnet arrays.The present invention is able to solve existing Halbach array p-m rotor and is difficult the problem of improving the torque of motor by injection triple harmonic current.
Description
Technical field
The invention belongs to magneto technical fields, in particular to a kind of five based on combination Halbach permanent magnet array
Phase magneto.
Background technique
Five phase magnetoes have high torque density, high efficiency, low torque ripple, it is lower to power device capacity requirement and
The features such as fault-tolerant ability is strong, and with advanced electromagnetic design theory, the quick hair of digital control technology and power electronic technique
Exhibition, makes it in the occasion more demanding to power of motor density and fault-tolerant ability, especially in military affairs such as Aeronautics and Astronautics, navigations
The civil fields such as industrial circle and electric car are used widely.
Halbach permanent magnet array structure is a kind of novel knot in order to reduce torque pulsation and iron loss occurred in recent years
Structure is used widely in five-phase induction motor, however the air gap flux density of Halbach permanent magnet array rotor near sinusoidal makes motor
The triple-frequency harmonics back-emf generated in winding is relatively small, causes to make the promotion of motor torque by injection triple harmonic current
With limited.
Summary of the invention
In order to solve the technical issues of above-mentioned background technique proposes, the present invention is intended to provide a kind of based on combination Halbach
Five phase magnetoes of permanent magnet array can significantly improve the torque of motor by injecting triple harmonic current.
In order to achieve the above technical purposes, the technical solution of the present invention is as follows:
It is a kind of based on combination Halbach permanent magnet array five phase magnetoes, including stator core, rotor core, shaft,
Five phase windings and several combination Halbach permanent magnet arrays, five phase windings are placed in the slot of stator core, each combination
Halbach permanent magnet array is successively pasted onto rotor respectively as the pole N magnetic pole or the pole S magnetic pole, each combination Halbach permanent magnet array
The surface of iron core, each combination Halbach permanent magnet array are made of two conventional segmented Halbach permanent magnet arrays.
The permanent magnet block number of preferred embodiment based on the above-mentioned technical proposal, the combination Halbach permanent magnet array meets:
K=2m-1
In above formula, k is the permanent magnet block number for combining Halbach permanent magnet array, and m is a segmentation Halbach permanent magnet array
Permanent magnet block number, and m >=2.
Preferred embodiment based on the above-mentioned technical proposal, each combination Halbach permanent magnet array is on the surface of rotor core with N
Pole magnetic pole, the pole S magnetic pole are alternately arranged.
Preferred embodiment based on the above-mentioned technical proposal, five phase winding are Single-layer Windings, Double Layer Winding or single double-deck
Winding；The connection type of five phase winding is star-like connection, pentagon connection or pentagon connection.
Preferred embodiment based on the above-mentioned technical proposal, the stator core and rotor core use magnetic conductive material, shaft
Using non-permeable material.
Preferred embodiment based on the above-mentioned technical proposal, the five phase magnetoes based on combination Halbach permanent magnet array
For realizing motor.
By adopting the above technical scheme bring the utility model has the advantages that
(1) the combination Halbach permanent magnet array magnetic pole in the present invention is by two conventional segmented Halbach permanent magnet array groups
At can generate the air gap flux density of the approximate shape of a saddle in air gap, fundamental wave and triple-frequency harmonics air gap flux density can be increased, to mention
High fundamental wave back-emf and triple-frequency harmonics back-emf, by with the fundamental current and triple harmonic current phase interaction that are injected in winding
With raising output torque；
(2) present invention combines Halbach permanent magnet array magnetic pole due to using, and the permanent magnet block number under a magnetic pole increases,
The eddy-current loss of permanent magnet can be effectively reduced, to avoid causing permanent magnet that irreversible demagnetization occurs because temperature is excessively high.
Detailed description of the invention
Fig. 1 is the combination Halbach permanent magnet array magnetic pole of five phase magnetoes of present invention combination Halbach permanent magnet array
Differentiation schematic diagram；
Fig. 2 is that the present invention is based on the structural schematic diagrams of five phase magnetoes of combination Halbach permanent magnet array；In Fig. 2
Label declaration: 1, stator core；2, five phase winding；3, rotor core；4, shaft；5, Halbach permanent magnet array is combined；
Fig. 3 is tradition Halbach permanent magnet array and the air gap flux density figure for combining Halbach permanent magnet array；
Fig. 4 is tradition Halbach permanent magnet array and the air gap flux density harmonic wave figure for combining Halbach permanent magnet array；
Fig. 5 is that the present invention injects triple-frequency harmonics under permanent magnitude current and is not injected into the output torque figure of triple-frequency harmonics.
Specific embodiment
Below with reference to attached drawing, technical solution of the present invention is described in detail.
Fig. 1 show the combination Halbach permanent magnet array of five phase magnetoes of present invention combination Halbach permanent magnet array
The differentiation schematic diagram of magnetic pole has selected in the present embodiment traditional three sections of Halbach permanent magnet arrays to be illustrated, a combination
Halbach permanent magnet array is composed of two tradition, three sections of Halbach permanent magnet arrays (A, B and A1, B1), individually tradition three
The air gap flux density that section Halbach permanent magnet array generates is near sinusoidal type, and the permanent magnet array after combination can produce approximate saddle
The air gap flux density of shape.The combination Halbach permanent magnet array developed by two tradition, three sections of Halbach permanent magnet arrays is by 5 blocks of permanent magnetism
Body composition, meets k=for the block number for the Halbach permanent magnet array that traditional Halbach permanent magnet array of other block numbers evolves into
2m-1, m is the permanent magnet block number of conventional segmented Halbach permanent magnet array in formula, and m >=2.
Fig. 2 is five phase permanent magnet motor structure schematic diagrames of present invention combination Halbach permanent magnet array, and rotor includes by combining
The pole N, the pole S magnetic pole and the rotor core and shaft, stator that Halbach permanent magnet array is formed include stator core and stator winding
(five phase windings).The winding type of attachment of five phase magnetoes of the combination Halbach permanent magnet array and the cooperation of pole slot can be with
It is adjusted as needed.It should be noted that can have gap or gapless between the adjacent pole N magnetic pole and the pole S magnetic pole, scheme
2 be gapless structure.
Fig. 3 is tradition Halbach permanent magnet array and the air gap flux density figure for combining Halbach permanent magnet array, and Fig. 4 is tradition
The air gap flux density harmonic wave figure of Halbach permanent magnet array and combination Halbach permanent magnet array.It can visually see, combine
The centre for the air gap magnetic density waveform that five phase magnetoes of Halbach permanent magnet array generate have it is obvious recessed, after Fourier decomposition
Its fundamental wave and triple-frequency harmonics air gap flux density increased compared with traditional structure, and especially triple-frequency harmonics ingredient increases obvious.
Fig. 5 is injection triple-frequency harmonics and the output torque for being not injected into triple-frequency harmonics under permanent magnitude current, and combination Halbach is forever
Output average torque when five phase magnetoes of magnetic array inject under permanent magnitude current and are not injected into triple harmonic current is
4.42Nm and 5.24Nm, torque increase 18.55%.
Embodiment is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, it is all according to
Technical idea proposed by the present invention, any changes made on the basis of the technical scheme are fallen within the scope of the present invention.
Claims (6)
1. a kind of five phase magnetoes based on combination Halbach permanent magnet array, it is characterised in that: including stator core, rotor
Iron core, shaft, five phase windings and several combination Halbach permanent magnet arrays, five phase windings are placed in the slot of stator core, respectively
A combination Halbach permanent magnet array is successively pasted respectively as the pole N magnetic pole or the pole S magnetic pole, each combination Halbach permanent magnet array
On the surface of rotor core, each combination Halbach permanent magnet array is made of two conventional segmented Halbach permanent magnet arrays.
2. the five phase magnetoes according to claim 1 based on combination Halbach permanent magnet array, it is characterised in that: described
The permanent magnet block number for combining Halbach permanent magnet array meets:
K=2m-1
In above formula, k be combine Halbach permanent magnet array permanent magnet block number, m be a segmentation Halbach permanent magnet array forever
Magnet block number, and m >=2.
3. the five phase magnetoes according to claim 1 or claim 2 based on combination Halbach permanent magnet array, it is characterised in that: each
A combination Halbach permanent magnet array is alternately arranged on the surface of rotor core with the pole N magnetic pole, the pole S magnetic pole.
4. the five phase magnetoes according to claim 1 based on combination Halbach permanent magnet array, it is characterised in that: described
Five phase windings are Single-layer Windings, Double Layer Winding or single and two layer winding；The connection type of five phase winding is star-like connection, five
The connection of side shape or pentagon connection.
5. the five phase magnetoes according to claim 1 based on combination Halbach permanent magnet array, it is characterised in that: described
Stator core and rotor core use magnetic conductive material, and shaft uses non-permeable material.
6. the five phase magnetoes according to claim 1 based on combination Halbach permanent magnet array, it is characterised in that: described
The five phase magnetoes based on combination Halbach permanent magnet array are for realizing motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811323361.4A CN109586440B (en) | 2018-11-08 | 2018-11-08 | Five-phase permanent magnet motor based on combined Halbach permanent magnet array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811323361.4A CN109586440B (en) | 2018-11-08 | 2018-11-08 | Five-phase permanent magnet motor based on combined Halbach permanent magnet array |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109586440A true CN109586440A (en) | 2019-04-05 |
| CN109586440B CN109586440B (en) | 2020-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811323361.4A Active CN109586440B (en) | 2018-11-08 | 2018-11-08 | Five-phase permanent magnet motor based on combined Halbach permanent magnet array |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111682668A (en) * | 2020-05-26 | 2020-09-18 | 东南大学 | Fractional slot brushless permanent magnet motor rotor yoke with inclined slots and slot size determining method |
| WO2023048221A1 (en) * | 2021-09-27 | 2023-03-30 | 株式会社デンソー | Rotary electrical machine |
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| JP2007221911A (en) * | 2006-02-16 | 2007-08-30 | Asmo Co Ltd | Rotor and motor |
| JP2011147346A (en) * | 2011-05-02 | 2011-07-28 | Mitsubishi Electric Corp | Electric motor |
| CN102983649A (en) * | 2012-12-25 | 2013-03-20 | 南车株洲电机有限公司 | Permanent-magnet wind power generator rotor and permanent-magnet wind power generator |
| CN103166406A (en) * | 2011-12-09 | 2013-06-19 | 同济大学 | High-power-density high-efficiency permanent magnet synchronous motor used for vehicle |
| WO2015082528A2 (en) * | 2013-12-06 | 2015-06-11 | Siemens Aktiengesellschaft | Rotor for an electric machine |
| CN205583971U (en) * | 2016-04-25 | 2016-09-14 | 深圳市科卫泰实业发展有限公司 | Coreless motor |
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| CN107634631A (en) * | 2017-11-06 | 2018-01-26 | 合肥工业大学 | A kind of two-part Halbach magnetoes with optimal angle of magnetization |
| JP2018092988A (en) * | 2016-11-30 | 2018-06-14 | 橘コンサルタンツ株式会社 | Multiple magnetization unit permanent magnet, manufacturing method thereof, mold, and magnetic circuit |
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2018
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| JP2007221911A (en) * | 2006-02-16 | 2007-08-30 | Asmo Co Ltd | Rotor and motor |
| JP2011147346A (en) * | 2011-05-02 | 2011-07-28 | Mitsubishi Electric Corp | Electric motor |
| CN103166406A (en) * | 2011-12-09 | 2013-06-19 | 同济大学 | High-power-density high-efficiency permanent magnet synchronous motor used for vehicle |
| CN102983649A (en) * | 2012-12-25 | 2013-03-20 | 南车株洲电机有限公司 | Permanent-magnet wind power generator rotor and permanent-magnet wind power generator |
| WO2015082528A2 (en) * | 2013-12-06 | 2015-06-11 | Siemens Aktiengesellschaft | Rotor for an electric machine |
| CN205583971U (en) * | 2016-04-25 | 2016-09-14 | 深圳市科卫泰实业发展有限公司 | Coreless motor |
| JP2018092988A (en) * | 2016-11-30 | 2018-06-14 | 橘コンサルタンツ株式会社 | Multiple magnetization unit permanent magnet, manufacturing method thereof, mold, and magnetic circuit |
| CN106712338A (en) * | 2017-01-17 | 2017-05-24 | 河海大学 | Halbach array permanent magnet synchronous motor with high flux weakening property |
| CN107634631A (en) * | 2017-11-06 | 2018-01-26 | 合肥工业大学 | A kind of two-part Halbach magnetoes with optimal angle of magnetization |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111682668A (en) * | 2020-05-26 | 2020-09-18 | 东南大学 | Fractional slot brushless permanent magnet motor rotor yoke with inclined slots and slot size determining method |
| WO2023048221A1 (en) * | 2021-09-27 | 2023-03-30 | 株式会社デンソー | Rotary electrical machine |
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| Publication number | Publication date |
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| CN109586440B (en) | 2020-09-15 |
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