CN105591492A - Vertical type magnetic suspension flywheel energy storage system - Google Patents
Vertical type magnetic suspension flywheel energy storage system Download PDFInfo
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- CN105591492A CN105591492A CN201410614699.0A CN201410614699A CN105591492A CN 105591492 A CN105591492 A CN 105591492A CN 201410614699 A CN201410614699 A CN 201410614699A CN 105591492 A CN105591492 A CN 105591492A
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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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Abstract
The invention belongs to the field of electrotechnics, discloses a vertical type magnetic suspension flywheel energy storage system, and provides a vertical type magnetic suspension flywheel energy storage system advantaged in high rotating speed, low standby loss and low cost, mainly for the purpose of solving the structural defect existing in a conventional flywheel energy storage system in the prior art. The vertical type magnetic suspension flywheel energy storage system is mainly characterized in that a rotating shaft connecting a motor with a flywheel is omitted, the motor is designed to be of an external rotor structure and an external rotor of the motor is arranged on the inner wall of the cylindrical flywheel. A sufficient centripetal force is provided for the motor rotor rotating at a high speed by use of the feature that the flywheel itself is high in structural strength such that the design requirement for high rotating speed of the flywheel energy storage system is satisfied. A radial suspension portion in a support system employs a design of a permanent magnetic suspension bearing so that the design requirements for low cost and low standby loss are met; and the vertical type magnetic suspension flywheel energy storage system can be widely applied to such occasions as power grid peak adjustment and frequency modulation, an uninterrupted power supply, aerospace and the like.
Description
Technical field
The invention belongs to electrical technology field, relate to a kind of vertical energy storage system for magnetic floating flywheel, relate to more specifically a kind of highRotating speed, low idling consumption, vertical energy storage system for magnetic floating flywheel cheaply.
Background technology
At present energy storage technology mainly contains following several: chemical storage batteries energy storage, energy storage and flywheel energy storage draw water. Wherein flywheel storageCan be pollution-free owing to having, discharge and recharge that number of times is unrestricted, distributing is not subject to the advantages such as natural conditions restriction, can be widely used in electrical networkThe occasions such as peak-frequency regulation, uninterrupted power source, Aero-Space. Although the mechanism of correlative study in recent years and company have developed practicalityThe flywheel energy storage product of level, but exist the problems such as flywheel energy storage system complex structure, idling consumption is high, integrated cost is high.
Summary of the invention
The object of the invention is to, the defect for flywheel current energy-storage system in structure aspects, provides a kind of high rotating speed, lowIdling consumption, vertical energy storage system for magnetic floating flywheel cheaply. It is mainly reflected in to have removed and connects turning of motor and flywheelAxle, becomes design of electrical motor outer-rotor structure and the outer rotor of motor is arranged on the inwall of cylindrical shape flywheel. Utilize flywheel originallyThe rotor that the feature that body structure intensity is high is High Rotation Speed provides enough centripetal force, thereby it is high to meet flywheel energy storage systemThe designing requirement of rotating speed. Radial suspension part in support system adopts the design of permanent magnetism magnetic suspension bearing, thereby realizes low one-tenthOriginally, the designing requirement of low idling consumption.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of vertical energy storage system for magnetic floating flywheel, bagDraw together housing, flywheel, stator, upper radial permanent magnet bearing, lower radial permanent magnet bearing, axial magnetic bearing, electronic/generating oneBody motor.
Described flywheel is the cylindrical shape flywheel that composite is made, and is arranged between housing and stator. Described flywheel is with fixedBetween son, arranging successively from top to bottom and going up radial permanent magnet bearing, electronic/power generation integrated motor, lower radial permanent magnet bearing. InstituteBetween the flywheel of stating and housing, arranging axial magnetic bearing. Described axial magnetic bearing also can be arranged in flywheel and stator itBetween. Described stator arrangement is on housing. Described housing is a confined space.
Described upper radial permanent magnet bearing and lower radial permanent magnet bearing are all the radial permanent magnet magnetic suspension that round ring magnet is madeBearing. Described radial permanent magnet magnetic suspension bearing comprises two parts: the part being arranged on stator is stator ring, is arranged inPart on flywheel inwall is rotor annulus. The inner headed face that the periphery diameter of described stator ring is less than rotor annulus is straightFootpath. The inner headed face polarity of the magnetic field phase of the periphery magnetic field of described stator ring and the rotor annulus in its same sagittal planeWith. The periphery magnetic field of described stator ring can be produced by a round ring magnet, also can be by multiple round ring magnetsArrange and produce according to certain rules. The inner headed face magnetic field of described rotor annulus can be produced by a round ring magnet, also can be byMultiple round ring magnets are arranged generation according to certain rules. Described stator ring and rotor annulus form a set of radial permanent-magnet magneticSuspension bearing. Described upper radial permanent magnet bearing can be made up of a set of radial permanent magnet magnetic suspension bearing, also can be by overlapping radially forever moreMagnetic magnetic suspension bearing is made. Described lower radial permanent magnet bearing can be made up of a set of radial permanent magnet magnetic suspension bearing, also can be by manyCover radial permanent magnet magnetic suspension bearing is made. Described round ring magnet can be made up of a permanent magnet, also can be by multiple permanent magnetismBody is arranged and is made according to certain rules.
Described axial magnetic bearing comprises two parts, be arranged in housing or the stator that is connected with housing on part be electromagnetic axisHold stator, the part being arranged on flywheel is electromagnetic bearing rotor. Described electromagnetic bearing stator is by electromagnet and cooling systemForm. Described electromagnetic bearing rotor is made up of the spoke of arranging suction dish. Described spoke is arranged on the inwall of flywheelIntermediate arrangement suction dish, makes the sagittal plane of suction dish and the axis of flywheel vertical, and the axle center of suction dish is at flywheelOn axis. Described electromagnet and suction dish prolong the axis positioned opposite of flywheel and in a distance.
Described electronic/outer-rotor permanent magnet motor that power generation integrated motor is iron-core-free, comprise motor stator and rotor twoPart. Described motor stator is made up of the machine winding coil and the cooling system that are arranged on stator. Described rotorFormed by the motor permanent magnet being arranged on flywheel inwall. Between described motor stator and rotor, leave working gas gap.
Operation principle of the present invention: utilize the phenomenon of " there is a natural attraction between the sexes, two like magnetic poles repel each other " between permanent magnet, do not needing power supplyIn situation, make flywheel under the magnetic field repulsive force effect of upper radial permanent magnet bearing and lower radial permanent magnet bearing, realize flywheel radially foreverMagnetic magnetic suspension. In the time that axial magnetic bearing switches on power, utilize electromagnet and be arranged in the controlled electricity between the suction dish on spokeMagnetic attraction, realizes the axial suspension of flywheel. Flywheel is realized suspension support in five frees degree like this. Electronic/power generation integratedThe motor flywheel energy storage system that switches on power moves under charge mode, and vavuum pump is started working and made airtight housing form vacuumChamber. It is to be arranged in motor on flywheel inwall forever that the winding coil of electronic under charge mode/power generation integrated motor utilizes electromagnetic forceMagnet provides acceleration, makes flywheel accelerate rotation store mechanical energy. In the time that flywheel energy storage system moves under power generation mode, heightMotor permanent magnet on the flywheel inwall of speed rotation produces induced voltage on machine winding coil, along with the output flywheel of electric energyThereby rotating speed reduction completes the conversion of mechanical energy to electric energy.
The present invention has following characteristics compared with existing flywheel energy storage technology:
1. in suspension support system, control the radial suspension support section that difficulty is large, manufacturing cost is higher and adopt permanent magnetism magnetcisuspensionFloating axle holds, and has so not only reduced manufacture difficulty and cost and has also made idling consumption be even lower.
2. electronic/outer-rotor permanent magnet motor that power generation integrated motor is iron-core-free, the stator design of iron-core-free makes motor like thisEddy-current loss reduces.
3. on columnar flywheel inwall, arranging the rotor of radial permanent magnet magnetic suspension bearing and electronic/power generation integrated motorRotor, makes flywheel energy storage system in the situation that not increasing flywheel wall thickness, increase the rotary inertia of flywheel. So not only carryThe high energy density of flywheel energy storage system, improves flywheel energy storage system thereby also make the volume of electronic/power generation integrated motor increaseThe power density of system. The rotor of the rotor of the radial permanent magnet magnetic suspension bearing that permanent-magnet material is made and electronic/power generation integrated motorUnder the parcel of cylindrical shape flywheel, structural strength is improved, thereby improves the maximum speed of flywheel.
Brief description of the drawings
Fig. 1 is the structural representation of the vertical energy storage system for magnetic floating flywheel detailed description of the invention one of the present invention.
Fig. 2 is the structural representation of the vertical energy storage system for magnetic floating flywheel detailed description of the invention two of the present invention.
Fig. 3 is the structural representation of the vertical energy storage system for magnetic floating flywheel detailed description of the invention three of the present invention.
Fig. 4 is the structural representation of the vertical energy storage system for magnetic floating flywheel detailed description of the invention four of the present invention.
In institute's drawings attached, identical Reference numeral is used for representing identical original paper or structure, wherein:
Radial permanent magnet bearing on stator on 1 housing, 2 flywheels, 3 stators, 31,32 times stators, 4,41 stator rings,42 rotor annulus, 5 times radial permanent magnet bearings, 6 axial magnetic bearings, 61 electromagnet, 62 spokes, 63 suction dishes, 7Electronic/power generation integrated motor, 71 machine winding coils, 72 motor permanent magnet. (61 electromagnet and 71 machine winding coils,All contain cooling system. )
Detailed description of the invention
For make invention object, technical scheme and advantage clearer, below in conjunction with drawings and Examples to the present inventionBe further elaborated. Specific embodiment described herein only, in order to explain the present invention, is not limited to the present invention.In addition involved technical characterictic in each embodiment of described the present invention below, as long as do not form each other conflictJust can mutually combine.
Be illustrated in figure 1 a kind of structural representation of vertical energy storage system for magnetic floating flywheel detailed description of the invention one. Vertical magnetcisuspensionSuspension flywheel energy-storage system comprises housing 1, flywheel 2, stator 3, and columnar flywheel 2 is enclosed within on columniform stator 3,Housing 1 airtight flywheel 2 and stator 3. Arranging the stationary part electricity of axial magnetic bearing 6 in the inner and upper of housing 1Magnet 61 and cooling system. Axially relative with it is to be arranged in the suction dish 63 on flywheel 2 inwalls by spoke 62.Utilize controlled electromagnetic attraction between electromagnet 61 and suction dish 63 to realize the axial suspension of flywheel 2. Below spoke 62The top layout of cylinder shape stator 3 radial permanent magnet bearing 4. Arranging radial permanent magnet in the bottom of cylinder shape stator 3Bearing 5. Utilize stator ring 41 in upper radial permanent magnet bearing 4 and the lower radial permanent magnet bearing 5 that permanent magnet makes and turnThe repulsion that sub-annulus is 42 makes flywheel 2 realize radial suspension. Utilization be arranged in stator 3 middle parts machine winding coil 71 andCooling system and the electromagnetic force being arranged between the motor permanent magnet 72 on flywheel 2 inwalls make flywheel 2 accelerate rotation, make flywheelEnergy-storage system is realized the conversion of electric energy to kinetic energy. In the time that flywheel energy storage system moves under power generation mode, the flywheel of High Rotation SpeedMotor permanent magnet 72 on 2 inwalls produces induced voltage on machine winding coil 71, along with the output flywheel 2 of electric energy turnsComplete the conversion of mechanical energy to electric energy thereby prompt drop is low.
Be illustrated in figure 2 a kind of structural representation of vertical energy storage system for magnetic floating flywheel detailed description of the invention two. ColumniformStator 3 is arranged in the inner and upper of housing 1. Arranging the stationary part electromagnetism of axial magnetic bearing 6 in the bottom of stator 3Iron 61 and cooling system. Axially relative with it is to be arranged in the suction dish 63 on flywheel 2 inwalls, profit by spoke 62Realize the axial suspension of flywheel 2 with the controlled electromagnetic attraction between electromagnet 61 and suction dish 63. At the upper circumference of spoke 62Radial permanent magnet bearing 5 is being arranged in the bottom of cylindricality stator 3. Radial permanent magnet axle in the top layout of cylinder shape stator 3Hold 4. Utilize stator ring 41 and rotor in upper radial permanent magnet bearing 4 and the lower radial permanent magnet bearing 5 that permanent magnet makesThe repulsion that annulus is 42 makes flywheel 2 realize radial suspension. Utilization is arranged in the machine winding coil 71 at stator 3 middle parts and coldBut system and be arranged in electromagnetic force between the motor permanent magnet 72 on flywheel 2 inwalls and make flywheel 2 accelerate rotation, makes flywheel storageCan system realize the conversion of electric energy to kinetic energy. In the time that flywheel energy storage system moves under power generation mode, the flywheel 2 of High Rotation SpeedMotor permanent magnet 72 on inwall produces induced voltage on machine winding coil 71, along with output flywheel 2 rotating speeds of electric energyComplete the conversion of mechanical energy to electric energy thereby reduce.
Be illustrated in figure 3 a kind of structural representation of vertical energy storage system for magnetic floating flywheel detailed description of the invention three. ColumniformStator 3 is divided into two parts, and what be arranged in housing 1 inner and upper is upper stator 31, and what be arranged in housing 1 inner below isLower stator 32. Upper stator 31 comprises radial permanent magnet bearing 4, electronic/power generation integrated motor 7 and axial magnetic bearing 6Stationary part. Lower stator 32 comprises the stationary part of lower radial permanent magnet bearing 5. Utilization is arranged in the axial electricity of stator 31Magnetic bearing 6 makes flywheel 2 realize axial suspension. Utilization is arranged in radial permanent magnet bearing 4 and lower radial permanent magnet bearing 5 foreverMagnet makes flywheel realize radial suspension. Be arranged between stator 31 and flywheel 2 electronic/power generation integrated motor 7 is flywheel storageThe power conversion part of energy system.
Be illustrated in figure 4 a kind of structural representation of vertical energy storage system for magnetic floating flywheel detailed description of the invention four. ColumniformWhat stator 3 was divided into that two parts are arranged in housing 1 inner and upper is upper stator 31, is arranged under being of housing 1 inner belowStator 32. Upper stator 31 comprises the stationary part of radial permanent magnet bearing 4 and axial magnetic bearing 6. Lower stator 32 wrapsDraw together the stationary part of electronic/power generation integrated motor 7 and lower radial permanent magnet bearing 5. Utilization is arranged in the axial electricity of stator 31Magnetic bearing 6 makes flywheel 2 realize axial suspension. Utilization is arranged in radial permanent magnet bearing 4 and lower radial permanent magnet bearing 5 foreverMagnet makes flywheel realize radial suspension. Be arranged between lower stator 32 and flywheel 2 electronic/power generation integrated motor 7 is flywheel storageThe power conversion part of energy system.
The foregoing is only the preferred embodiment of the present invention aspect flywheel energy storage system agent structure, not in order to limit thisBright, all any amendments of making within the spirit and principles in the present invention, be equal to and replace and improvement etc., be all included in the present inventionProtection domain within.
Claims (5)
1. a vertical energy storage system for magnetic floating flywheel comprises: housing (1), flywheel (2), stator (3), on radially foreverMagnetic bearing (4), lower radial permanent magnet bearing (5), axial magnetic bearing (6), electronic/power generation integrated motor (7).
2. vertical energy storage system for magnetic floating flywheel according to claim 1, is characterized in that, described flywheel (2)For the cylindrical shape flywheel that composite is made, be arranged between housing (1) and stator (3); Described flywheel (2) withBetween stator (3), arranging successively from top to bottom and going up radial permanent magnet bearing (4), electronic/power generation integrated motor (7), lower footpathTo Permanent-magnet bearing (5); Between described flywheel (2) and housing (1), arranging axial magnetic bearing (6); Described axleAlso can be arranged between flywheel (2) and stator (3) to electromagnetic bearing (6); Described stator (3) is arranged in housing (1)On; Described housing (1) is a confined space.
3. vertical energy storage system for magnetic floating flywheel according to claim 1, is characterized in that, described upper radially foreverMagnetic bearing (4) is all with lower radial permanent magnet bearing (5) the radial permanent magnet magnetic suspension bearing that round ring magnet is made; DescribedRadial permanent magnet magnetic suspension bearing comprise two parts: the part being arranged on stator (3) is stator ring (41), is arranged inPart on flywheel (2) inwall is rotor annulus (42); The periphery diameter of described stator ring (41) is less than rotorThe inner headed face diameter of annulus (42); The periphery magnetic field of described stator ring (41) is with in its same sagittal planeThe inner headed face polarity of the magnetic field of rotor annulus (42) is identical; The periphery magnetic field of described stator ring (41) can be by a circleAnnular permanent magnet produces, and also can arrange according to certain rules generation by multiple round ring magnets; Described rotor annulus (42)Inner headed face magnetic field can be produced by a round ring magnet, also can arrange according to certain rules product by multiple round ring magnetsRaw; Described stator ring (41) and rotor annulus (42) form a set of radial permanent magnet magnetic suspension bearing; Described upper footpathCan be made by a set of radial permanent magnet magnetic suspension bearing to Permanent-magnet bearing (4), also can be by overlapping radial permanent magnet magnetic suspension bearing system moreBecome; Described lower radial permanent magnet bearing (5) can be made up of a set of radial permanent magnet magnetic suspension bearing, also can be by overlapping radially forever moreMagnetic magnetic suspension bearing is made; Described round ring magnet can be made up of a permanent magnet, also can be by multiple permanent magnets by certainRule is arranged and is made.
4. vertical energy storage system for magnetic floating flywheel according to claim 1, is characterized in that, described axial magneticBearing (6) comprises two parts, be arranged in housing (1) or the stator (3) that is connected with housing (1) on part be electromagnetismBearing stator, the part being arranged on flywheel is electromagnetic bearing rotor; Described electromagnetic bearing stator by electromagnet (61) andCooling system forms; Described electromagnetic bearing rotor is made up of the spoke (62) of arranging suction dish (63); Described wheelSpoke (62) is arranged in intermediate arrangement on the inwall of flywheel (2) and suction dish (63), makes the sagittal plane of suction dish (63)Vertical with the axis of flywheel (2), and the axle center of suction dish (63) is on the axis of flywheel (2); Described electromagnetismIron (61) and suction dish (63) prolong the axis positioned opposite of flywheel (2) and in a distance.
5. vertical energy storage system for magnetic floating flywheel according to claim 1, is characterized in that, described electronic/send outThe outer-rotor permanent magnet motor that electricity motor integrating (7) is iron-core-free, comprises motor stator and rotor two parts; DescribedMotor stator is made up of the machine winding coil (71) and the cooling system that are arranged on stator (3); Described rotorFormed by the motor permanent magnet (72) being arranged on flywheel (2) inwall; Between described motor stator and rotor, leaveWorking gas gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614699.0A CN105591492A (en) | 2014-10-31 | 2014-10-31 | Vertical type magnetic suspension flywheel energy storage system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410614699.0A CN105591492A (en) | 2014-10-31 | 2014-10-31 | Vertical type magnetic suspension flywheel energy storage system |
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| CN105591492A true CN105591492A (en) | 2016-05-18 |
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| CN201410614699.0A Pending CN105591492A (en) | 2014-10-31 | 2014-10-31 | Vertical type magnetic suspension flywheel energy storage system |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107425648A (en) * | 2017-08-25 | 2017-12-01 | 谢竞宁 | Horizontal outer rotor energy storage device of magnetic suspension flywheel |
| CN107516993A (en) * | 2016-06-17 | 2017-12-26 | 翁寿成 | The energy-saving and power generation device of rectilinear magnetic drives component and rectilinear magnetic drives |
| CN107559303A (en) * | 2017-09-12 | 2018-01-09 | 长春市苏伟磁悬浮技术研究所 | A kind of magnetic suspension bearing |
| CN108988574A (en) * | 2017-06-05 | 2018-12-11 | 翁寿成 | Vertical magnetic transmission power generation device |
| CN109347246A (en) * | 2018-12-06 | 2019-02-15 | 哈尔滨电气股份有限公司 | A kind of vertical external rotor electric magnetic bearing flywheel energy-storage system |
| CN109450158A (en) * | 2018-12-06 | 2019-03-08 | 哈尔滨电气股份有限公司 | The cylindrical rotor flywheel energy storage system of Permanent-magnet bearing and electromagnetic bearing mixing bearing |
| CN111921477A (en) * | 2020-08-14 | 2020-11-13 | 昆明理工大学 | Method and device for magnetic suspension supergravity enhanced reaction |
| CN112583223A (en) * | 2020-12-18 | 2021-03-30 | 中北大学 | Ducted fan device integrated with permanent magnet synchronous disc type flat wire motor |
| CN112727685A (en) * | 2020-12-24 | 2021-04-30 | 长江勘测规划设计研究有限责任公司 | Wind generating set integrated with magnetic suspension flywheel energy storage |
| WO2021114488A1 (en) * | 2019-12-12 | 2021-06-17 | 南京磁谷科技股份有限公司 | Permanent magnetic bearing |
| CN113037002A (en) * | 2021-03-01 | 2021-06-25 | 中国科学院电工研究所 | Vacuum annular track bearingless magnetic suspension flywheel energy storage system |
| CN114204750A (en) * | 2022-01-11 | 2022-03-18 | 中磁动力设备(深圳)有限公司 | In-wheel motor and assembling method thereof |
| WO2024031990A1 (en) * | 2022-08-08 | 2024-02-15 | 郭树雄 | Motor generator |
-
2014
- 2014-10-31 CN CN201410614699.0A patent/CN105591492A/en active Pending
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107516993A (en) * | 2016-06-17 | 2017-12-26 | 翁寿成 | The energy-saving and power generation device of rectilinear magnetic drives component and rectilinear magnetic drives |
| CN108988574A (en) * | 2017-06-05 | 2018-12-11 | 翁寿成 | Vertical magnetic transmission power generation device |
| CN107425648B (en) * | 2017-08-25 | 2023-11-21 | 谢竞宁 | Horizontal outer rotor magnetic suspension flywheel energy storage device |
| CN107425648A (en) * | 2017-08-25 | 2017-12-01 | 谢竞宁 | Horizontal outer rotor energy storage device of magnetic suspension flywheel |
| CN107559303B (en) * | 2017-09-12 | 2021-09-10 | 长春市苏伟磁悬浮技术研究所 | Magnetic suspension bearing |
| CN107559303A (en) * | 2017-09-12 | 2018-01-09 | 长春市苏伟磁悬浮技术研究所 | A kind of magnetic suspension bearing |
| CN109347246B (en) * | 2018-12-06 | 2023-09-22 | 哈尔滨电气股份有限公司 | Flywheel energy storage system with vertical outer rotor electromagnetic bearing |
| CN109450158B (en) * | 2018-12-06 | 2023-09-22 | 哈尔滨电气股份有限公司 | Cylindrical rotor flywheel energy storage system with permanent magnet bearing and electromagnetic bearing mixed support |
| CN109347246A (en) * | 2018-12-06 | 2019-02-15 | 哈尔滨电气股份有限公司 | A kind of vertical external rotor electric magnetic bearing flywheel energy-storage system |
| CN109450158A (en) * | 2018-12-06 | 2019-03-08 | 哈尔滨电气股份有限公司 | The cylindrical rotor flywheel energy storage system of Permanent-magnet bearing and electromagnetic bearing mixing bearing |
| WO2021114488A1 (en) * | 2019-12-12 | 2021-06-17 | 南京磁谷科技股份有限公司 | Permanent magnetic bearing |
| CN111921477A (en) * | 2020-08-14 | 2020-11-13 | 昆明理工大学 | Method and device for magnetic suspension supergravity enhanced reaction |
| CN112583223A (en) * | 2020-12-18 | 2021-03-30 | 中北大学 | Ducted fan device integrated with permanent magnet synchronous disc type flat wire motor |
| CN112583223B (en) * | 2020-12-18 | 2022-02-08 | 中北大学 | Ducted fan device integrated with permanent magnet synchronous disc type flat wire motor |
| US11897623B2 (en) | 2020-12-18 | 2024-02-13 | North University Of China | Ducted fan device integrated with permanent magnet synchronous disc flat wire motor |
| CN112727685A (en) * | 2020-12-24 | 2021-04-30 | 长江勘测规划设计研究有限责任公司 | Wind generating set integrated with magnetic suspension flywheel energy storage |
| CN113037002A (en) * | 2021-03-01 | 2021-06-25 | 中国科学院电工研究所 | Vacuum annular track bearingless magnetic suspension flywheel energy storage system |
| CN114204750B (en) * | 2022-01-11 | 2023-08-08 | 中磁动力设备(深圳)有限公司 | Hub motor and assembly method thereof |
| CN114204750A (en) * | 2022-01-11 | 2022-03-18 | 中磁动力设备(深圳)有限公司 | In-wheel motor and assembling method thereof |
| WO2024031990A1 (en) * | 2022-08-08 | 2024-02-15 | 郭树雄 | Motor generator |
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Application publication date: 20160518 |