CN106230211A - H type monolateral concentrated magnetic Hot Spare flywheel energy storage sends out all-in-one with dynamic - Google Patents

H type monolateral concentrated magnetic Hot Spare flywheel energy storage sends out all-in-one with dynamic Download PDF

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Publication number
CN106230211A
CN106230211A CN201610814989.9A CN201610814989A CN106230211A CN 106230211 A CN106230211 A CN 106230211A CN 201610814989 A CN201610814989 A CN 201610814989A CN 106230211 A CN106230211 A CN 106230211A
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CN
China
Prior art keywords
type
unshakable
determination
motor
magnet steel
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
CN201610814989.9A
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Chinese (zh)
Inventor
于雅莉
张国胜
王超
吴迪
陈彥国
李琳
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Harbin Engineering University
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Harbin Engineering University
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Publication date
Application filed by Harbin Engineering University filed Critical Harbin Engineering University
Priority to CN201610814989.9A priority Critical patent/CN106230211A/en
Publication of CN106230211A publication Critical patent/CN106230211A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K16/00Machines with more than one rotor or stator
    • H02K16/02Machines with one stator and two or more rotors
    • 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 rotors
    • H02K1/272Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
    • H02K1/274Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
    • H02K1/2753Inner 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
    • H02K1/276Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
    • H02K1/2766Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
    • 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
    • H02K1/2786Outer rotors
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K21/00Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/22Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating around the armatures, e.g. flywheel magnetos
    • H02K21/222Flywheel magnetos
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K2213/00Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
    • H02K2213/03Machines characterised by numerical values, ranges, mathematical expressions or similar information

Abstract

The present invention provides a kind of H type monolateral concentrated magnetic Hot Spare flywheel energy storage to send out all-in-one with dynamic, use up and down and inside and outside be dual-rotor structure, its ectomesoderm rotor is monolateral concentrated magnetic structure, outer rotor is outer layer concentrated magnetic structure, to ensure that outer layer magnetic field of permanent magnet does not affect internal layer core construction, thus internal layer iron core thickness can be the thinnest, reduces again core loss while saving space, improves system effectiveness.The present invention, by improving the utilization rate of stator winding to save space, and is substantially improved torque density.Additionally, Dual-layer structure can realize electric machine structure Hot Spare, there is fault-tolerant ability.

Description

H type monolateral concentrated magnetic Hot Spare flywheel energy storage sends out all-in-one with dynamic
Technical field
The present invention relates to a kind of dynamic all-in-one, particularly relate to a kind of H type monolateral concentrated magnetic Hot Spare flywheel energy storage with dynamic Send out all-in-one.
Background technology
Flywheel energy storage system has two classes by dynamic all-in-one major motor structure of sending out: one is conventional motors structure, and two is double turning Sub-motor structure.
Document 1 " Novel turbine magneto based on multiple physical field method design " proposes a kind of based on Halbach The seal stator formula turbine magneto of magnet, the monolateral poly-magnetic characteristic of Halbach magnet and preferable air gap flux density are sinusoidal Degree, can be effectively improved generator power density, improve winding back-emf.
Document 2 " research of novel transverse magnetic flux permanent magnet motor based on 3D-FEM " proposes a kind of novel transverse magnetic flux forever Magneto (TFPM) structure, i.e. uses single-side structural, type stator poly-magnetic rotor structure unshakable in one's determination, built-in.And motor is discussed The physical dimension change impact on motor flux leakage coefficient.
Document 3 " numerical computations of Halbach array magnetic coupling driving torque " application ANSYS software is to 24 pole formulas The air-gap field of Halbach type magnetic coupling carries out finite element analysis, along with the increase of permanent magnet thickness, and its driving torque value Change greatly and more can fully demonstrate when using large-size permanent magnet the monolateral poly-magnetic characteristic of Halbach array;Along with yoke The increase of ferrum thickness, driving torque is on a declining curve but impact is the least, therefore, can when designing Halbach type magnetic coupling With cancellation yoke structure to reduce rotary inertia, thus strengthen the transmission performance of shaft coupling.
Prior art all cannot realize structure Hot Spare, and torque density and power density low.The present invention proposes a kind of tool Having the dynamic of H iron-core structure to send out all-in-one, H iron-core is interior outer double-layer structure, and outer layer magnetic field is monolateral concentrated magnetic.H iron-core The most also being double-decker, can realize Hot Spare structure, have fault tolerance, complete machine safety is largely increased.Owing to adopting By H iron-core structure, by the utilization rate of raising stator winding to save space, and torque density and unit mass are substantially improved Density, reduces the total quality of flywheel energy storage system, promotes energy storage density.
Summary of the invention
The invention aims to provide a kind of H type monolateral concentrated magnetic Hot Spare flywheel energy storage to send out all-in-one with dynamic.
The object of the present invention is achieved like this: includes motor outer wall 12, be arranged on the motor at motor outer wall 12 two ends End cap 2 and motor bottom end cover 11, the axle 4 being arranged between motor upper cover 2 and motor bottom end cover 11 by bearing 5, H type internal layer Unshakable in one's determination 10, H type outer layer iron core 6, H type internal layer unshakable in one's determination 10 all parallel with the axis of axle 4 with the vertical section of H type outer layer iron core 6, be connected Vertically the interlude of section is vertical with the axis of axle 4, and H type internal layer unshakable in one's determination 10 is arranged on axle 4 by the vertical section of inner side, in H type The outside upright section of layer unshakable in one's determination 10 is connected by connector 13 with the vertical section of the inner side of H type outer layer iron core 6, and connector 13 institute The position of the position interlude unshakable in one's determination with two corresponding, the medial shaft straight section of H type outer layer iron core 6 is provided with magnet steel 7, edge Motor upper cover 2 and motor bottom end cover 11 circumference is respectively arranged with winding skeleton 8, winding skeleton 8 is provided with winding 9, and Winding 9 is between magnet steel 7 and H type internal layer iron core 10.
Present invention additionally comprises so some architectural features:
1. magnet steel 7 has 16 blocks of little magnet steel composition, 16 blocks of little magnet steel carry out space-alternating arrangement with the quantity of 4 pieces, every pole, And the direction of magnetization of adjacent little magnet steel differs 90 degree.
2. winding skeleton 8 is arranged on the electric motor end cap of correspondence by rivet 3.
Compared with prior art, the invention has the beneficial effects as follows: the magnetic line of force overwhelming majority produced by the magnet steel of the present invention It is distributed in outside it, and the stray field of inner side is relatively small;H type internal layer iron core is little affected by the magnetic field of outer rotor magnet steel generation Impact, it is possible to by lower thickness, reduces core loss while saving space;H iron-core is interior outer double-layer structure, magnetic field Intensity gets a promotion;H iron-core is the most also double-decker, can realize Hot Spare structure, has fault tolerance, complete machine safety It is largely increased;Owing to using H iron-core structure, by the utilization rate of raising stator winding to save space, and significantly carry Rise torque density and per mass density, reduce the total quality of flywheel energy storage system, promote energy storage density.Use H type list Limit concentrated magnetic Hot Spare structure replaces conventional motors structure, and in energy-storing flywheel system runs, it is achieved Redundancy Design, system is run Reliability significantly improves.The present invention uses Hot Spare rotor structure to replace conventional rotor configuration, it is achieved fault-tolerant design, security of system Property gets a promotion.After outer rotor magnet steel 7 arranges as shown in Figure 2, the external closing type that can realize magnetic field runs.Outer rotor magnet steel uses Bonding mode is fixed with outer layer iron core, installs end cap at axial two ends, can realize magnet steel in radial direction, tangential and axial limit Position, it is ensured that the reliability service of drive mechanism.Magnet steel of the present invention arrangement is simple, reliable, technique is simple.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the main apparent direction of the present invention;
Fig. 2 is the schematic diagram in side-looking direction of the present invention.
In figure: 1: head bolts;2: motor upper cover;3: rivet;4: axle;5: bearing;6:H type outer layer is unshakable in one's determination;7: magnet steel; 8: winding skeleton;9: winding;10:H type internal layer is unshakable in one's determination;11: motor bottom end cover;12: motor outer wall, 13: connector.
Detailed description of the invention
With detailed description of the invention, the present invention is described in further detail below in conjunction with the accompanying drawings.
The purpose of the present invention is to propose to one have upper and lower and inside and outside be birotor, and be monolateral concentrated magnetic Hot Spare The flywheel energy storage of structure is dynamic sends out an all-in-one, and this is dynamic sends out an all-in-one machine structure and have a high reliability, high energy storage density, high torque density, There is the remarkable advantage of fault-tolerant ability.Use H iron-core monolateral concentrated magnetic structure that flywheel energy storage system dynamic can be substantially improved The work efficiency of body machine and reliability.
In conjunction with Fig. 1 and Fig. 2, the present invention includes motor outer wall 12, is arranged on motor upper cover 2 and at motor outer wall 12 two ends Motor bottom end cover 11, the axle 4 being arranged between motor upper cover 2 and motor bottom end cover 11 by bearing 5, H type internal layer iron core 10, H type outer layer iron core 6, H type internal layer iron core 10 is all parallel with the axis of axle 4 with the vertical section of H type outer layer iron core 6, be connected vertical section Interlude vertical with the axis of axle 4, H type internal layer unshakable in one's determination 10 is arranged on axle 4 by the vertical section of inner side, H type internal layer iron core The outside upright section of 10 is connected by connector 13 with the vertical section of the inner side of H type outer layer iron core 6, and the position at connector 13 place The position putting the interlude unshakable in one's determination with two is corresponding, and the medial shaft straight section of H type outer layer iron core 6 is provided with magnet steel 7, along motor Upper end cover 2 and motor bottom end cover 11 circumference are respectively arranged with winding skeleton 8, and winding skeleton 8 is provided with winding 9, and winding 9 Between magnet steel 7 and H type internal layer iron core 10.Magnet steel 7 has 16 blocks of little magnet steel composition, 16 blocks of little magnet steel with the quantity of 4 pieces, every pole Carry out space-alternating arrangement.Winding skeleton 8 is arranged on the electric motor end cap of correspondence by rivet 3.Motor outer wall 12 and two ends Lid is linked together by head bolts 1.
H type internal layer unshakable in one's determination 10 uses magnetic conductive metal material.H type outer layer iron core 6, uses corrosion-resistant not magnetic conduction construction steel Material.Outer rotor magnet steel 7, carries out parallel magnetization according to magnetizing direction shown in Fig. 2, it is ensured that the direction of magnetization difference 90 of adjacent magnet steel Degree.Outer rotor magnet steel pole embrace is 1, can be closely cooperated with outer rotor iron core by bonding mode, play radially and tangentially Position-limiting action.Outside rotor magnetic steel 7 and H type outer layer unshakable in one's determination 6 by bonding carry out radially fixed after, can be consolidated by the end cap at two ends Fixed, thus limit the axial displacement of outer rotor magnet steel 7.
The present invention relates to a kind of novel H type monolateral concentrated magnetic Hot Spare flywheel energy storage and send out all-in-one with dynamic.This dynamic one Machine use up and down and inside and outside be dual-rotor structure, its ectomesoderm rotor is monolateral concentrated magnetic structure, and outer rotor is outer strata magnetic Type structure, to ensure that outer layer magnetic field of permanent magnet does not affect internal layer core construction, thus internal layer iron core thickness can be the thinnest, saves sky Reduce again core loss while between, improve system effectiveness.By the utilization rate of raising stator winding to save space, and significantly Promote torque density.Additionally, Dual-layer structure can realize electric machine structure Hot Spare, there is fault-tolerant ability.
H type outer layer unshakable in one's determination 6 is monolateral concentrated magnetic structure, and H type outer layer iron core 6 (outer rotor) uses outer layer concentrated magnetic structure, To ensure that outer layer magnetic field of permanent magnet does not affect internal layer core construction, therefore H type internal layer 10 lower thickness unshakable in one's determination, reduce iron core and damage Consumption, magnetic field intensity is increased dramatically, and system effectiveness gets a promotion.H iron-core is the most also double-decker, can realize Hot Spare Structure, has fault tolerance, and complete machine safety is largely increased.Owing to using H iron-core structure, by improving stator winding Utilization rate to save space, and torque density and per mass density are substantially improved, reduce the entirety of flywheel energy storage system Quality, promotes energy storage density.
H type internal layer unshakable in one's determination 10 uses permeability magnetic material.By bonding between H type outer layer unshakable in one's determination 6 and magnet steel 7 (permanent magnet composition) Mode is fixed, and outer rotor magnet steel carries out spatial arrangement with the quantity of 4 pieces, every pole, and its arrangement rule is as in figure 2 it is shown, pass through upper and lower side Cover external rotor magnetic steel to be axially fixed.According to the magnet steel arrangement mode in Fig. 2, it is possible to achieve the outer closure in outer rotor magnetic field Distribution, its magnetic line of force is distributed in the outside of outer rotor, improves torque density, and eliminates tradition yoke portion magnetic conductive loop, real Now reduce the purpose of leakage field.

Claims (3)

1.H type monolateral concentrated magnetic Hot Spare flywheel energy storage sends out all-in-one with dynamic, it is characterised in that: include motor outer wall (12), set Put the motor upper cover (2) at motor outer wall (12) two ends and motor bottom end cover (11), be arranged on motor upper end by bearing (5) Axle (4) between lid (2) and motor bottom end cover (11), H type internal layer (10) unshakable in one's determination, H type outer layer are unshakable in one's determination to (6), and H type internal layer is unshakable in one's determination (10) vertical section unshakable in one's determination with H type outer layer to (6) is all parallel with the axis of axle (4), be connected the interlude of vertical section and the axle of axle (4) Line is vertical, and H type internal layer (10) unshakable in one's determination is arranged on axle (4) by the vertical section of inner side, the outside upright of H type internal layer (10) unshakable in one's determination Section is connected by connector (13) with the vertical section of the inner side of H type outer layer (6) unshakable in one's determination, and the position and two at connector (13) place The position of the interlude of individual iron core is corresponding, and the medial shaft straight section of H type outer layer (6) unshakable in one's determination is provided with magnet steel (7), on motor End cap (2) and motor bottom end cover (11) circumference are respectively arranged with winding skeleton (8), and winding skeleton (8) is provided with winding (9), And winding (9) is positioned between magnet steel (7) and H type internal layer (10) unshakable in one's determination.
H type the most according to claim 1 monolateral concentrated magnetic Hot Spare flywheel energy storage sends out all-in-one with dynamic, it is characterised in that: Magnet steel (7) has 16 blocks of little magnet steel compositions, 16 blocks of little magnet steel and carries out space-alternating arrangement with the quantity of 4 pieces, every pole, and adjacent little The direction of magnetization of magnet steel differs 90 degree.
H type the most according to claim 1 and 2 monolateral concentrated magnetic Hot Spare flywheel energy storage sends out all-in-one with dynamic, and its feature exists In: winding skeleton (8) is arranged on the electric motor end cap of correspondence by rivet (3).
CN201610814989.9A 2016-09-09 2016-09-09 H type monolateral concentrated magnetic Hot Spare flywheel energy storage sends out all-in-one with dynamic Pending CN106230211A (en)

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Application Number Priority Date Filing Date Title
CN201610814989.9A CN106230211A (en) 2016-09-09 2016-09-09 H type monolateral concentrated magnetic Hot Spare flywheel energy storage sends out all-in-one with dynamic

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CN201610814989.9A CN106230211A (en) 2016-09-09 2016-09-09 H type monolateral concentrated magnetic Hot Spare flywheel energy storage sends out all-in-one with dynamic

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110971033A (en) * 2018-09-28 2020-04-07 日本电产株式会社 Motor with a stator having a stator core
CN112152409A (en) * 2020-08-19 2020-12-29 沈阳工业大学 Yoke-free stator/rotor core axial flux permanent magnet motor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101783557A (en) * 2010-02-08 2010-07-21 北京航空航天大学 Permanent magnet synchronous motor without stator iron core
CN102005835A (en) * 2010-12-10 2011-04-06 上海电机学院 Halbach outer rotor doubly salient motor
CN102097906A (en) * 2011-01-11 2011-06-15 陈国宝 Multilayer coreless coil permanent magnet motor
CN102497074A (en) * 2011-12-26 2012-06-13 北京理工大学 Multiphase fault tolerant permanent magnet motor based on birotor structure
CN102684326A (en) * 2011-03-11 2012-09-19 珠海格力电器股份有限公司 Axial air-gap type motor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101783557A (en) * 2010-02-08 2010-07-21 北京航空航天大学 Permanent magnet synchronous motor without stator iron core
CN102005835A (en) * 2010-12-10 2011-04-06 上海电机学院 Halbach outer rotor doubly salient motor
CN102097906A (en) * 2011-01-11 2011-06-15 陈国宝 Multilayer coreless coil permanent magnet motor
CN102684326A (en) * 2011-03-11 2012-09-19 珠海格力电器股份有限公司 Axial air-gap type motor
CN102497074A (en) * 2011-12-26 2012-06-13 北京理工大学 Multiphase fault tolerant permanent magnet motor based on birotor structure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110971033A (en) * 2018-09-28 2020-04-07 日本电产株式会社 Motor with a stator having a stator core
CN110971033B (en) * 2018-09-28 2022-05-10 日本电产株式会社 Motor
CN112152409A (en) * 2020-08-19 2020-12-29 沈阳工业大学 Yoke-free stator/rotor core axial flux permanent magnet motor

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Application publication date: 20161214