CN105782242A - Flywheel energy storage system and five-degree-of-freedom magnetic suspension supporting structure - Google Patents
Flywheel energy storage system and five-degree-of-freedom magnetic suspension supporting structure Download PDFInfo
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- CN105782242A CN105782242A CN201610339959.7A CN201610339959A CN105782242A CN 105782242 A CN105782242 A CN 105782242A CN 201610339959 A CN201610339959 A CN 201610339959A CN 105782242 A CN105782242 A CN 105782242A
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- magnetic bearing
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- permanent magnet
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- 239000000725 suspension Substances 0.000 title claims abstract description 33
- 238000004146 energy storage Methods 0.000 title claims abstract description 19
- 230000004323 axial length Effects 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 238000005339 levitation Methods 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910002551 Fe-Mn Inorganic materials 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/30—Flywheels
- F16F15/315—Flywheels characterised by their supporting arrangement, e.g. mountings, cages, securing inertia member to shaft
- F16F15/3156—Arrangement of the bearings
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
本发明公开了一种飞轮储能系统及五自由度磁悬浮支承结构，包括上径向混合磁轴承、轴向被动磁轴承和下径向混合磁轴承。上径向混合磁轴承与下径向混合磁轴承的结构相同，轴向被动磁轴承位于上径向混合磁轴承和下径向混合磁轴承中间，三个磁轴承共同支承飞轮转轴的五个自由度。径向混合磁轴承主动控制转轴径向位移，并能提供小部分的轴向悬浮力，轴向被动磁轴承Halbach阵列式的永磁体结构，永磁转子在外侧产生磁场，永磁定子在内侧产生磁场，两者的磁场相互作用，产生向上的斥力，三个磁轴承共同构成飞轮储能系统的五自由度磁悬浮支承结构。该磁悬浮支承结构适用于竖直放置的飞轮储能系统，以及竖直放置且轴向负载变化较小的旋转系统的支承。
The invention discloses a flywheel energy storage system and a five-degree-of-freedom magnetic suspension support structure, including an upper radial hybrid magnetic bearing, an axial passive magnetic bearing and a lower radial hybrid magnetic bearing. The structure of the upper radial hybrid magnetic bearing is the same as that of the lower radial hybrid magnetic bearing. The axial passive magnetic bearing is located between the upper radial hybrid magnetic bearing and the lower radial hybrid magnetic bearing. The three magnetic bearings jointly support the five freewheel shafts. Spend. The radial hybrid magnetic bearing actively controls the radial displacement of the rotating shaft and can provide a small part of the axial suspension force. The axial passive magnetic bearing has a Halbach array permanent magnet structure. The permanent magnet rotor generates a magnetic field on the outside, and the permanent magnet stator generates on the inside. The magnetic field, the magnetic fields of the two interact to generate an upward repulsion force, and the three magnetic bearings together constitute the five-degree-of-freedom magnetic suspension support structure of the flywheel energy storage system. The magnetic levitation support structure is suitable for vertically placed flywheel energy storage systems and supports for vertically placed rotating systems with small changes in axial load.
Description
Technical field
The present invention relates to high speed supporting technology field, relate to the suspension of five-freedom degree magnetic supporting structure in a kind of magnetic suspension bearing, particularly to the suspension of five-freedom degree magnetic supporting structure in a kind of flywheel energy storage system.
Background technology
Magnetic suspension bearing is that one utilizes electromagnetic force to be suspended in by rotary apparatus in the air, thus overcoming the high speed supporting arrangement of frictional force between traditional bearing rotating shaft and bearing, therefore it has without advantages such as friction, unlubricated, life-span length, is particularly suitable for the occasions such as high speed, vacuum.
Flywheel energy storage system is the mechanical energy storing device of the flywheel stored energy utilizing high speed rotating, there is the advantages such as energy storage density is big, discharge and recharge fast, life-span length, and the low and vacuum-packed environmental requirement of the condition of its high-speed cruising, open circuit loss makes the advantage of magnetic bearing can give full play in flywheel energy storage system.
Flywheel current energy storage magnetic bearing has active, passive-type and mixed type three kinds: active magnetic bearings control is simple, but power consumption is bigger；Although the lossless operation of energy of axial passive magnetic bearing, but the bearing capacity of bearing is relatively low；The power consumption of hybrid magnetic bearing is relatively low, and can actively control, but owing to the existence of permanent magnet makes control more difficult.
Summary of the invention
In view of this, the invention provides a kind of suspension of five-freedom degree magnetic supporting structure, adopt the mode that hybrid magnetic bearing and passive magnetic bearing combine, the advantage combining both magnetic bearing structures, add bearing capacity and the load-bearing rigidity of magnetic bearing, reduce power consumption.
Present invention also offers a kind of flywheel energy storage system applying above-mentioned suspension of five-freedom degree magnetic supporting structure.
For achieving the above object, the present invention provides following technical scheme:
A kind of suspension of five-freedom degree magnetic supporting structure, including: it is sleeved on the upper radial hybrid magnetic bearing in rotating shaft, axial passive magnetic bearing and lower radial hybrid magnetic bearing；Described axial passive magnetic bearing is positioned in the middle of described upper radial hybrid magnetic bearing and described lower radial hybrid magnetic bearing.
Preferably, described upper radial hybrid magnetic bearing is identical with the structure of lower radial hybrid magnetic bearing, all includes: stator, annular permanent magnet, auxiliary stator, rotor and control coil；
Described stator includes stator yoke and multiple magnetic pole；Multiple magnetic poles are circumferentially uniformly distributed, and described control coil is wrapped on described magnetic pole, and is circumferentially uniformly distributed；
Described auxiliary stator is collar plate shape, and described stator and described auxiliary stator lay respectively at annular permanent magnet both sides, and described rotor is sleeved in described rotating shaft.
Preferably, the external diameter of described two ends of rotor and described stator and described auxiliary stator corresponding section is more than the external diameter of described rotor mid portion.
Preferably, described axial passive magnetic bearing includes: p-m rotor, permanent-magnet stator and stator sleeve；Described p-m rotor is sleeved in described rotating shaft, described permanent-magnet stator is equal with the axial length of described p-m rotor, described stator sleeve is set in outside described permanent-magnet stator, and described p-m rotor and described permanent-magnet stator all adopt the magnet structure of Halbach array formula.
A kind of flywheel energy storage system, rotating shaft place of its flywheel is provided with supporting structure, and described supporting structure is above-mentioned suspension of five-freedom degree magnetic supporting structure.
Can be seen that from above-mentioned technical scheme, suspension of five-freedom degree magnetic supporting structure provided by the invention, adopt the mode that hybrid magnetic bearing and passive magnetic bearing combine, each radial hybrid magnetic bearing controls radially orthogonal both direction, axial passive magnetic bearing controls axial freedom, and three magnetic bearings support five degree of freedom of flywheel rotating shaft jointly；This programme combines the advantage of both magnetic bearing structures, adds bearing capacity and the load-bearing rigidity of magnetic bearing, reduces power consumption, it is simple to control.Present invention also offers a kind of flywheel energy storage system applying above-mentioned suspension of five-freedom degree magnetic supporting structure.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The general illustration of the suspension of five-freedom degree magnetic supporting structure that Fig. 1 provides for the embodiment of the present invention；
The axial A-A generalized section of the radial hybrid magnetic bearing that Fig. 2 provides for the embodiment of the present invention；
The radial direction B-B generalized section of the radial hybrid magnetic bearing that Fig. 3 provides for the embodiment of the present invention；
The radial direction C-C generalized section of the radial hybrid magnetic bearing that Fig. 4 provides for the embodiment of the present invention；
The axial cross-sectional views of the axial passive magnetic bearing that Fig. 5 provides for the embodiment of the present invention；
The Halbach array arrangement mode of the p-m rotor that Fig. 6 provides for the embodiment of the present invention；
The Halbach array arrangement mode of the permanent-magnet stator that Fig. 7 provides for the embodiment of the present invention.
In figure: 1 is upper radial hybrid magnetic bearing；2 is axial passive magnetic bearing；3 is lower radial hybrid magnetic bearing；11 and 31 is stator；12 and 32 is annular permanent magnet；13 and 33 is auxiliary stator；14 and 34 is rotor；4 is rotating shaft；16 and 36 is control coil；17 and 37 is biasing magnetic flux；18 and 38 for controlling magnetic flux；19 and 39 is stator yoke；110 and 310 is magnetic pole；22 is p-m rotor；23 is permanent-magnet stator；24 is stator sleeve；221 is first annular p-m rotor；222 is the second annular permanent magnet rotor；223 is the 3rd annular permanent magnet rotor；224 is fourth annular p-m rotor；225 is the 5th annular permanent magnet rotor；231 is first annular permanent-magnet stator；232 is the second annular permanent magnet stator；233 is the 3rd annular permanent magnet stator；234 is fourth annular permanent-magnet stator；235 is the 5th annular permanent-magnet stator.
Detailed description of the invention
The core of the present invention is in that to disclose a kind of flywheel energy storage suspension of five-freedom degree magnetic supporting structure, adopt the mode that hybrid magnetic bearing and passive magnetic bearing combine, adopt a kind of novel radial hybrid magnetic bearing, radial suspension force can not only be provided, and it is provided that the axial driven suspension power of fraction, axially adopt passive magnetic bearing, and adopt Halbach array formula magnet structure, strengthen magnetic field intensity in air gap, improve permanent magnet utilization rate, increase bearing capacity and the load-bearing rigidity of axial passive magnetic bearing.
In order to make it easy to understand, the existing relational language related to by this programme is explained as follows:
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
The suspension of five-freedom degree magnetic supporting structure that the embodiment of the present invention provides, its core improvement is in that, including: it is sleeved on the upper radial hybrid magnetic bearing 1 in rotating shaft 4, axial passive magnetic bearing 2 and lower radial hybrid magnetic bearing 3；Axial passive magnetic bearing 2 is positioned in the middle of radial hybrid magnetic bearing 1 and lower radial hybrid magnetic bearing 3, and its structure is referred to shown in Fig. 1.
Can be seen that from above-mentioned technical scheme, the suspension of five-freedom degree magnetic supporting structure that the embodiment of the present invention provides, adopt the mode that hybrid magnetic bearing and passive magnetic bearing combine, upper radial hybrid magnetic bearing 1 and lower radial hybrid magnetic bearing 3 control radially orthogonal both direction respectively, axial passive magnetic bearing 2 controls axial freedom, and three magnetic bearings support five degree of freedom of flywheel rotating shaft 4 jointly；This programme combines the advantage of hybrid magnetic bearing and passive magnetic bearing, adds bearing capacity and the load-bearing rigidity of magnetic bearing, reduces power consumption, it is simple to control.
In the specific embodiment that this programme provides, upper radial hybrid magnetic bearing 1 is identical with the structure of lower radial hybrid magnetic bearing 3, all includes: stator 11,31, annular permanent magnet 12,32, auxiliary stator 13,33, rotor 14,34 and control coil 16,36, its structure is referred to shown in Fig. 2；As preferably, stator 11,31, auxiliary stator 13,33 and rotor 14,34 are all formed by silicon steel plate stacking；
Stator 11,31 includes stator yoke 19,39 and multiple magnetic pole 110,310 being disposed radially；Multiple magnetic poles 110,310 are circumferentially uniformly distributed, and control coil 16,36 is wrapped on magnetic pole 110,310, and is circumferentially uniformly distributed；As it is shown on figure 3, the present embodiment have employed four magnetic poles 110,310, each magnetic pole 110,310 is all wound with control coil 16,36；
Auxiliary stator 13,33 is collar plate shape, and stator 11,31 and auxiliary stator 13,33 are respectively distributed to annular permanent magnet about 12,32 both sides, and rotor 14,34 is sleeved in rotating shaft 4.
Operationally, annular permanent magnet 12,32 vertically magnetize produce biasing magnetic flux 17,37, sequentially pass through auxiliary stator 13,33, rotor 14,34, stator 11,31 formed loop；
The control magnetic flux 18,38 produced after passing into electric current forms loop in the air gap between magnetic pole 110,310, magnetic pole 110,310 and rotor 14,34, rotor 14,34, stator yoke 19,39；
When controlling magnetic flux 18,38 with biasing magnetic flux 17,37 superposition, rotor 14,34 is subject to magnetic pole 110,310 to be produced to strengthen along the suspending power in its direction；When controlling magnetic flux 18,38 with biasing magnetic flux 17,37 counteracting, rotor 14,34 is subject to magnetic pole 110,310 to be produced to weaken along the suspending power in its direction, by changing the positive and negative and size of electric current in control coil 16,36, thus controlling radially two degree of freedom.
In order to optimize above-mentioned technical scheme further, the external diameter of rotor 14,34 two ends and stator 11,31 and auxiliary stator 13,33 corresponding section, more than the external diameter of rotor 14,34 mid portion, forms two salient poles, and its structure is referred to shown in Fig. 2；So when axial dipole field occurs rotor 14,34 time, owing to magnetic resistance minimum principle can produce certain axial suspension power.
In the specific embodiment that this programme provides, axial passive magnetic bearing 2 includes: p-m rotor 22, permanent-magnet stator 23 and stator sleeve 24；P-m rotor 22 is sleeved in rotating shaft 4, permanent-magnet stator 23 is equal with the axial length of p-m rotor 22, stator sleeve 24 is set in outside permanent-magnet stator 23, for fixing permanent-magnet stator 23, permanent-magnet stator 23 is in the periphery of p-m rotor 22, p-m rotor 22 and permanent-magnet stator 23 all adopt the magnet structure of Halbach (Halbach) array, and its structure is referred to shown in Fig. 5.As preferably, the internal diameter 1mm bigger than the external diameter of p-m rotor 22 of permanent-magnet stator 23.
P-m rotor 22 is in generation magnetic field, outside, and permanent-magnet stator 23 is in generation magnetic field, inner side, and both magnetic field interactions, generation repulsion upwards, so that p-m rotor 22 and rotating shaft 4 are suspended in the air.The axial passive magnetic bearing 2 that the embodiment of the present invention proposes, permanent magnet adopts Halbach array formula structure, make, in the air gap that air-gap field intensity concentrates between stator and rotor, to improve the utilization rate of permanent magnet, add bearing capacity and the load-bearing rigidity of passive magnetic bearing.P-m rotor 22 and permanent-magnet stator 23 adopt high-performance Ru-Fe-Mn permanent magnet N40H, and stator sleeve 24 and rotating shaft 4 adopt non-magnetic metal material.
As shown in Figure 6, p-m rotor 22 is by five internal diameters annular permanent magnet rotor 221 identical with external diameter, 222, 223, 224, 225 superpositions are constituted, it is followed successively by first annular p-m rotor 221 from top to bottom, second annular permanent magnet rotor 222, 3rd annular permanent magnet rotor 223, fourth annular p-m rotor 224, 5th annular permanent magnet rotor 225, wherein first annular p-m rotor 221 magnetizes radially inward, second annular permanent magnet rotor 222 magnetizes axially downward, 3rd annular permanent magnet rotor 223 radially magnetizes, fourth annular p-m rotor 224 magnetizes axially upward, 5th annular permanent magnet rotor 225 magnetizes radially inward.
As shown in Figure 7, permanent-magnet stator 23 is by five internal diameters annular permanent magnet stator 231 identical with external diameter, 232, 233, 234, 235 stacking form, it is followed successively by first annular permanent-magnet stator 231 from top to bottom, second annular permanent magnet stator 232, 3rd annular permanent magnet stator 233, fourth annular permanent-magnet stator 234, 5th annular permanent-magnet stator 235, wherein first annular permanent-magnet stator 231 magnetizes radially inward, second annular permanent magnet stator 232 magnetizes axially upward, 3rd annular permanent magnet stator 233 radially magnetizes, fourth annular permanent-magnet stator 234 magnetizes axially downward, 5th annular permanent-magnet stator 235 magnetizes radially inward.
The embodiment of the present invention additionally provides a kind of flywheel energy storage system, rotating shaft 4 place of its flywheel is provided with supporting structure, its core improvement is in that, supporting structure is above-mentioned suspension of five-freedom degree magnetic supporting structure, adopt the form that novel radial hybrid magnetic bearing and axial passive magnetic bearing combine, radial hybrid magnetic bearing actively controls radial suspension, and it is provided that the axial bearing capacity of fraction, axial passive magnetic bearing adopts Halbach array magnet structure, improve the utilization rate of permanent magnet, add bearing capacity and the load-bearing rigidity of passive magnetic bearing.
In sum, a kind of flywheel energy storage system and suspension of five-freedom degree magnetic supporting structure thereof are embodiments provided, including upper radial hybrid magnetic bearing, axial passive magnetic bearing and lower radial hybrid magnetic bearing.Upper radial hybrid magnetic bearing is identical with the structure of lower radial hybrid magnetic bearing, and axial passive magnetic bearing is positioned in the middle of radial hybrid magnetic bearing and lower radial hybrid magnetic bearing, and three magnetic bearings support five degree of freedom of flywheel rotating shaft jointly.Radial hybrid magnetic bearing actively controls rotating shaft radial displacement, and it is provided that the axial suspension power of fraction, the magnet structure of axial passive magnetic bearing Halbach array formula, p-m rotor is in generation magnetic field, outside, permanent-magnet stator is in generation magnetic field, inner side, both magnetic field interactions, produce repulsion upwards, and three magnetic bearings collectively form the suspension of five-freedom degree magnetic supporting structure of flywheel energy storage system.This magnetic suspension bearing structure is suitable in the flywheel energy storage system vertically placed, and vertically placement and axial load change the supporting of less rotary system.
In this specification, each embodiment adopts the mode gone forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually referring to.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention.The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (5)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610339959.7A CN105782242A (en) | 2016-05-20 | 2016-05-20 | Flywheel energy storage system and five-degree-of-freedom magnetic suspension supporting structure |
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| CN201610339959.7A CN105782242A (en) | 2016-05-20 | 2016-05-20 | Flywheel energy storage system and five-degree-of-freedom magnetic suspension supporting structure |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255118A (en) * | 2017-07-26 | 2017-10-17 | 珠海格力节能环保制冷技术研究中心有限公司 | The rotor of magnetic suspension bearing and its assembly tooling and assembly method |
| CN107327483A (en) * | 2017-07-27 | 2017-11-07 | 江苏大学 | A kind of vehicle-mounted flying wheel battery double sphere hybrid magnetic bearings of alternating current-direct current five degree of freedom |
| CN108980206A (en) * | 2018-09-29 | 2018-12-11 | 王文学 | Full permanent magnetism dynamic complete suspending bearing |
| CN109281938A (en) * | 2018-12-02 | 2019-01-29 | 迈格钠磁动力股份有限公司 | A kind of permanent-magnet suspension bearing that magnet safeguard structure is set |
| WO2019019244A1 (en) * | 2017-07-27 | 2019-01-31 | 江苏大学 | Vehicle-mounted flywheel battery using five-degree-of-freedom hybrid magnetic bearing |
| CN109551026A (en) * | 2018-11-30 | 2019-04-02 | 沈阳工业大学 | Cyclone milling machine motor-direct-drive type magnetic suspension facing cutter |
| CN109826868A (en) * | 2019-02-20 | 2019-05-31 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | A hybrid magnetic bearing system |
| CN112160987A (en) * | 2020-10-27 | 2021-01-01 | 珠海格力电器股份有限公司 | Magnetic suspension bearing assembly, motor and compressor |
| CN113833759A (en) * | 2021-10-14 | 2021-12-24 | 哈尔滨工业大学 | Asymmetric structure permanent magnet radial magnetic bearing |
| CN113833758A (en) * | 2021-10-14 | 2021-12-24 | 哈尔滨工业大学 | Multi-ring asymmetric structure permanent magnetic bearing |
| WO2022193352A1 (en) * | 2021-03-17 | 2022-09-22 | 江苏大学 | Tumbler-type vehicle-mounted flywheel energy storage device with five-degree-of-freedom suspension support |
| GB2606814A (en) * | 2021-03-17 | 2022-11-23 | Univ Jiangsu | Tumbler-type vehicle-mounted flywheel energy storage device with five-degree-of-freedom suspension support |
| CN115459489A (en) * | 2022-09-22 | 2022-12-09 | 南京航空航天大学 | Passive diamagnetic suspension motor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107255118A (en) * | 2017-07-26 | 2017-10-17 | 珠海格力节能环保制冷技术研究中心有限公司 | The rotor of magnetic suspension bearing and its assembly tooling and assembly method |
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| CN109551026A (en) * | 2018-11-30 | 2019-04-02 | 沈阳工业大学 | Cyclone milling machine motor-direct-drive type magnetic suspension facing cutter |
| CN109281938A (en) * | 2018-12-02 | 2019-01-29 | 迈格钠磁动力股份有限公司 | A kind of permanent-magnet suspension bearing that magnet safeguard structure is set |
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| CN109826868A (en) * | 2019-02-20 | 2019-05-31 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | A hybrid magnetic bearing system |
| CN109826868B (en) * | 2019-02-20 | 2025-04-01 | 中国航天科工飞航技术研究院（中国航天海鹰机电技术研究院） | A hybrid magnetic bearing system |
| CN112160987A (en) * | 2020-10-27 | 2021-01-01 | 珠海格力电器股份有限公司 | Magnetic suspension bearing assembly, motor and compressor |
| WO2022193352A1 (en) * | 2021-03-17 | 2022-09-22 | 江苏大学 | Tumbler-type vehicle-mounted flywheel energy storage device with five-degree-of-freedom suspension support |
| GB2606814A (en) * | 2021-03-17 | 2022-11-23 | Univ Jiangsu | Tumbler-type vehicle-mounted flywheel energy storage device with five-degree-of-freedom suspension support |
| US11811292B1 (en) | 2021-03-17 | 2023-11-07 | Jiangsu University | Tumbler-type vehicle-mounted flywheel energy storage device with five-degree-of-freedom magnetic suspension support |
| CN113833759A (en) * | 2021-10-14 | 2021-12-24 | 哈尔滨工业大学 | Asymmetric structure permanent magnet radial magnetic bearing |
| CN113833758A (en) * | 2021-10-14 | 2021-12-24 | 哈尔滨工业大学 | Multi-ring asymmetric structure permanent magnetic bearing |
| CN115459489A (en) * | 2022-09-22 | 2022-12-09 | 南京航空航天大学 | Passive diamagnetic suspension motor |
| CN115459489B (en) * | 2022-09-22 | 2024-09-13 | 南京航空航天大学 | Passive anti-magnetic suspension motor |
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Application publication date: 20160720 |