CN108471193A - A kind of highly integrated energy accumulation device for fly wheel - Google Patents
A kind of highly integrated energy accumulation device for fly wheel Download PDFInfo
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- CN108471193A CN108471193A CN201810229766.5A CN201810229766A CN108471193A CN 108471193 A CN108471193 A CN 108471193A CN 201810229766 A CN201810229766 A CN 201810229766A CN 108471193 A CN108471193 A CN 108471193A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/02—Additional mass for increasing inertia, e.g. flywheels
- H02K7/025—Additional mass for increasing inertia, e.g. flywheels for power storage
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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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- Power Engineering (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
The present invention relates to a kind of highly integrated energy accumulation device for fly wheel, by vacuum tank (1), shaft (2), unloading axial mixed magnetic bearing (3), flywheel (4), mixing outer rotor magnetic suspension switched reluctance motor (5) form.Shaft (2) upper end installation unloading axial mixed magnetic bearing (3), instead of the mechanical replacement bearing and unloading bearing in conventional flywheel device, motor axial load is shared, flywheel shaft weight and dynamic loading are overcome, the bearing of flywheel shaft axial suspension is provided.The outer rotor of motor (5) can directly drive flywheel, save mechanical driving device, realize high speed rotation energy storage；In addition to electronic/generating function, while radial four-degree-of-freedom suspending power can be provided.The present invention organically combines unloading axial mixed magnetic bearing using mixing outer rotor magnetic suspension switched reluctance motor and unloads controllable suspension feature by force, realizes the highly reliable suspension of flywheel five degree of freedom, improves the flywheel speed of service, reduces power consumption and volume.
Description
Technical field
The invention belongs to electricity storage technology field more particularly to a kind of highly integrated flywheel energy storages, between not
The fields such as power-off source, aerospace.
Background technology
With the development in the fields such as generation of electricity by new energy, distributed power supply system, hybrid vehicle, aerospace, energy storage
Technology has become global research topic.In numerous energy storage technologies, flying wheel battery is big with power, efficient, long lifespan, energy storage
The advantages that density is big, cleanliness without any pollution is by great attention both domestic and external.As it is a kind of collect the technologies such as machinery, control, electronics in
The novel energy-storing equipment of one, flying wheel battery are main to show at present there is also many technical barriers for restricting its engineering application
In suspension bearing system, the performance of integrated form high speed/super high speed motor and control etc..To reduce bearing loss, flying wheel battery is logical
It is supported frequently with multiple magnetic suspension bearings, increases flywheel axial length, reduce critical speed, while also leading to flying wheel battery
It is complicated, bulky.
Using improve Speed of Reaction Wheels come increase the approach of flywheel energy storage total amount must pull against the flywheel rim strength of materials constraint,
The technical barriers such as bearing heating and frictional resistance consumption.High strength composite and magnetic bearing technology develop into solution in recent years
Above-mentioned problem provides new approaches:The composite flywheel ultrahigh speed supported using magnetic suspension bearing under vacuum rotates to store energy
Amount.Magnetic suspension bearing eliminates the fever Problem of Failure and frictional resistance consumption problem of conventional mechanical bearings continuous high speed operating.
The R. concomitans of this two technologies make the energy storage total amount of flying wheel battery and energy storage density all be greatly enhanced.With prosperity
Country compares, and the technical merit with scale of investment in China are relatively low at present, are still in infancy to the research of flying wheel battery.It is special
Be not how to develop can be suitable for aerospace flying wheel battery, the country be even more without reference to.Although external flying wheel battery
The research of technology has made great progress but is far from reaching the level for replacing other batteries, to develop this device, need to solve
Certainly a series of technical barrier, mainly has:It is flywheel rotor design, magnetic bearing technology, vacuum technique, converter technique, rational
Structure design etc..
And magnetic suspension motor integrates conventional motors rotation and magnetic bearing suspension function, to generate driving load simultaneously
The suspending power of electromagnetic torque and supporting rotor is target, and gas must be kept only for generating electromagnetic torque by having broken conventional motors
The thinking of gap magnetic field balance, opens the new direction of high-speed electric expreess locomotive research field.Magnetic suspension switched reluctance motor is by magnetic suspension skill
Art is combined with switched reluctance machines, inherit general magnetic suspension motor without friction, without abrasion, axial space utilization rate is high, turns
On the basis of the advantages that sub- critical speed is big, the high speed superiority of switched reluctance machines is given full play to and adverse circumstances has been fitted
Ying Xing, while by the active control of radial load, effectively improving switched reluctance machines and being vibrated caused by unbalanced magnetic pull
And noise problem, become the new research hotspot in one, current magnetic suspension motor field.For this purpose, this patent proposes one kind with simplex winding
It is that the flywheel that core component suspension of five-freedom degree magnetic is supported and is driven stores up to mix outer rotor magnetic suspension switched reluctance motor
Energy system, realizes the unification of suspension bearing system and driving motor, substantially reduces flywheel rotor axial length, control is more
Flexibly, critical speed, power density and level of integrated system are improved, bearing loss is further reduced, in the low damage flywheel of high speed
Field of batteries has great research and application value.
Invention content
Purpose of the present invention is to propose a kind of highly integrated energy accumulation device for fly wheel, suspension bearing is combined with driving motor, profit
With magnetic suspension switched reluctance motor high-speed cruising advantage and from suspension function, flywheel limit speed and dynamic property can be improved, is dropped
Low bearing power consumption, cost and volume reduce flywheel energy storage system running wastage, improve operational efficiency and reliability.
To achieve the above object, the technical solution adopted by the present invention is:
A kind of energy accumulation device for fly wheel, including vacuum tank 1, shaft 2, unloading-axial mixed magnetic bearing 3, flywheel 4 and mixing
Outer rotor magnetic suspension switched reluctance motor 5；Unloading-axial mixed magnetic bearing 3 is installed in the upper end of shaft 2, and it is radially negative to share motor
Lotus；- offer 2 axial suspension of the shaft support of axial mixed magnetic bearing 3 is provided simultaneously；2 lower end of shaft is cased with flywheel 4, and from flywheel 4
Center is pierced by and is connected with flywheel 4；4 inside of flywheel is mixing outer rotor magnetic suspension switched reluctance motor 5, and flywheel 4 is directly nested
On the external rotor of mixing outer rotor magnetic suspension switched reluctance motor 5, high speed rotation energy storage is realized；In addition to electronic/power generation work(
Can be outer, while radial four-degree-of-freedom suspending power being provided, realize that five degree of freedom is complete with 3 collective effect of unloading-axial mixed magnetic bearing
The energy accumulation device for fly wheel of suspension.
Further, mixing outer rotor magnetic suspension switched reluctance motor 5 is made of motor one and motor two, and motor one includes turning
Sub- 5-1, stator 5-2, winding 5-3, suspension system 5-4, antifreeze plate 5-5, torque system 5-6, stator 5-2 inside rotor 5-1,
The two concentric co-axial stays radial air gap between rotor 5-1 and stator 5-2, winding 5-3 lap wounds divide on motor stator 5-2
Not Zu Cheng motor one suspension system and torque system；The wherein winding A of A phase windings1, winding A2, winding A3, winding A4Concatenation
A phase torque windings are constituted, electric current is applied, pull rotor 5-1 rotations；Similarly B phases are identical, collectively constitute torque system；Winding C1
It is concatenated with winding C2, is passed through electric current, generate control magnetic field, be superimposed with the bias magnetic field that permanent-magnetic clamp generates and suspending power is provided；Similarly
Winding D1, winding D2 is identical, realizes that the 5 radial two-freedom of a motor part of mixing outer rotor magnetic suspension switched reluctance motor is outstanding
It is floating；Motor two includes rotor a5-7, and stator a5-8, winding a5-9, stator a5-8 is inside rotor a5-7, the two concentric co-axial,
Radial air gap is stayed between rotor a5-7 and stator a5-8, winding a5-9 lap wounds on motor stator a5-8, winding E1 with around
Group E2 concatenations, winding F1 are concatenated with winding F2, are passed through electric current and are generated control magnetic field, are superimposed and carry with the bias magnetic field that permanent-magnetic clamp generates
For suspending power, realize that the radial two-freedom of rotor a5-7 suspends.
Further, motor one is double-salient-pole structure, has 4 equal polar arcs being arranged at equal intervals respectively wide outstanding on stator 5-2
Relief pole tooth and 8 equal wide torque salient pole teeth of polar arc, provide torque and suspending power, there is 14 be arranged at equal intervals on rotor 5-1
A wide salient pole tooth of equal polar arc.
Further, embedded permanent-magnetic clamp 5-9, thickness are no more than stator 5-2 and stator a5-8 between stator 5-2 and stator a5-8
Yoke it is high.
Further, motor two is outer rotor quadrupole magnetic bearing, and stator a5-8 is set at equal intervals there are four suspension pole.
Further, unloading-axial mixed magnetic bearing 3 include upper stator 3-1, it is lower stator 3-2, upper stator winding 3-3, lower fixed
Sub- winding 3-4, permanent-magnetic clamp 3-5 and sucker 3-6 compositions；
Upper stator 3-1 sucker 3-6s opposite with lower stator 3-2 is that unsymmetric structure, upper stator 3-1 and lower stator 3-2 are turning
The axial cross section of 2 side of axis is U-shaped, wherein the U-shaped mouth of upper stator 3-1 and the U-shaped mouth of lower stator 3-2 are oppositely arranged, upper stator
The U-shaped bottom face of 3-1 is embedded with permanent-magnetic clamp 3-5, and for upper stator winding 3-3 in the U-shaped mouth of upper stator 3-1, lower stator winding 3-4 is embedding
In the U-shaped mouth of lower stator 3-2, realize the axial suspension of shaft 2, collar plate shape sucker 3-6 is nested in shaft 2, sucker 3-6 with
There are air gaps between upper stator 3-1, lower stator 3-2.
Further, 5 stator 5-2 of mixing outer rotor magnetic suspension switched reluctance motor, stator a5-8, rotor 5-1 and rotor a5-
7 materials are superposed for silicon steel sheet.
Further, 5 permanent-magnetic clamp 5-9 materials of mixing outer rotor magnetic suspension switched reluctance motor are neodymium iron boron.
Flywheel gear includes vacuum tank, flywheel, shaft, mixing outer rotor magnetic suspension switched reluctance motor and unloading-axis
To hybrid magnetic bearing.The mixing outer rotor magnetic suspension switched reluctance motor is outer rotor, default minor structure, by two motor groups
At motor one is 12/14 outer rotor magnetic suspension switched reluctance motor, provides torque and suspending power, and motor two is outer rotor quadrupole
Magnetic bearing, motor one are mechanically connected with two outer rotor of motor, and embedded permanent-magnetic clamp, thickness are no more than inner stator yoke between inner stator
Height, there are radial air gap between motor stator and rotor, only a set of winding of lap wound, suspending windings generate in each stator poles
Suspending power, torque winding generate starting torque.Flywheel is directly connected on outer rotor, and shaft is pierced by from flywheel center.Shaft
Upper end is provided with unloading-axial mixed magnetic bearing.
Unloading-the axial mixed magnetic bearing includes：Upper stator, lower stator, permanent-magnetic clamp, upper stator winding, lower stator around
Group and sucker.Upper stator has the characteristics that unsymmetric structure with lower stator：The axial direction of upper stator and lower stator in shaft side is cut
Face is U-shaped, wherein the U-shaped mouth of upper stator and the U-shaped mouth of lower stator are oppositely arranged, the U-shaped bottom face of upper stator is embedded with permanent-magnetic clamp, on
For stator winding in the U-shaped mouth of upper stator, lower stator winding realizes the axial suspension of shaft in the U-shaped mouth of lower stator,
Collar plate shape sucker is nested in shaft 2, and there are air gaps between sucker and upper stator, lower stator.Flywheel is unloaded by permanent magnet
Axial all or most gravity, remainder weight or axial additional disturbance, by unloading-axial mixed magnetic bearing
Coil controls.Unloading-axial mixed magnetic bearing working condition can be divided into：1, unloaded mode of operation under undisturbed；2, permanent magnetism
Demagnetization unloaded mode of operation；3, the lower dynamic equilibrium shaping modes of axial disturbance.
Compared with prior art, the beneficial effects of the invention are as follows:
(1) axial length shortens, is compact-sized
The device is outer rotor, default minor structure using mixing outer rotor magnetic suspension switched reluctance motor, motor, and rotor can
To directly drive flywheel, realizes that radial four-degree-of-freedom suspends, mechanical driving device can be saved, reduce shaft axial length, structure is more
Step up to gather.
(2) system power dissipation is reduced
Replace traditional mechanical replacement bearing and unloading bearing using unloading-axial mixed magnetic bearing, utilizes offloading functions
It realizes axial unloading, only need to overcome shaft weight and dynamic loading, while coordinating and realizing flywheel using magnetic suspension switched reluctance motor
Shaft five degree of freedom high speed low-loss suspends entirely, reduces electromagnetic power consumption and the mechanical friction loss of device.
(3) firm in structure, suitable high-speed cruising
The structure of whole device is simple, and especially rotor is only magnetic conductive iron without permanent magnet, simple in structure firm, convenient for height
Speed, ultrahigh speed operation, are conducive to the limit speed for improving flywheel, and then improve the stored energy capacitance of the flywheel energy storage system.
Description of the drawings
Fig. 1 is the structural schematic diagram of highly integrated energy accumulation device for fly wheel.
Fig. 2 is mixing outer rotor magnetic suspension switched reluctance motor structure x/y plane front view.
Fig. 3 is mixing outer rotor magnetic suspension switched reluctance motor structure x/y plane rearview.
Fig. 4 is mixing outer rotor magnetic suspension switched reluctance motor structure yz floor map.
Fig. 5 is unloading-axial mixed magnetic bearing structural schematic diagram.
Fig. 6 is that permanent magnet unloads magnetic circuit schematic diagram under undisturbed.
Fig. 7 is that magnetic circuit diagram is intended to when permanent magnetism demagnetizes under undisturbed.
Fig. 8 (a) is magnetic bearing rotor eccentric magnetic circuit figure downwards under axial dynamic disturbances.
Fig. 8 (b) is magnetic bearing rotor eccentric magnetic circuit figure upwards under axial dynamic disturbances
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes.
As shown in Figure 1, the present invention includes vacuum tank 1, shaft 2, unloading-axial mixed magnetic bearing 3, flywheel 4 and mixing
Outer rotor magnetic suspension switched reluctance motor 5.Unloading-axial mixed magnetic bearing 3 is installed in the upper end of shaft 2, and it is radially negative to share motor
Lotus；- offer 2 axial suspension of the shaft support of axial mixed magnetic bearing 3 is provided simultaneously；2 lower end of shaft is cased with flywheel 4, and from flywheel 4
Center is pierced by and is connected with flywheel 4；4 inside of flywheel is mixing outer rotor magnetic suspension switched reluctance motor 5, flywheel) it is directly nested
On the external rotor of mixing outer rotor magnetic suspension switched reluctance motor 5, high speed rotation energy storage is realized；In addition to electronic/power generation work(
Can be outer, while radial four-degree-of-freedom suspending power being provided, realize that five degree of freedom is complete with 3 collective effect of unloading-axial mixed magnetic bearing
The energy accumulation device for fly wheel of suspension.
As shown in Fig. 2, mixing outer rotor magnetic suspension switched reluctance motor of the present invention 5 is by motor one and motor two
It constitutes, motor one includes rotor 5-1, stator 5-2, winding 5-3, suspension system 5-4, antifreeze plate 5-5, torque system 5-6, stator
5-2 is inside rotor 5-1, the two concentric co-axial, and radial air gap, winding 5-3 lap wounds are stayed between rotor 5-1 and stator 5-2
On motor stator 5-2, the suspension system and torque system of motor one are separately constituted；By taking A phases as an example, wherein A phase windings around
Group A1, winding A2, winding A3, winding A4Concatenation constitutes A phase torque windings, applies electric current, pulls rotor 5-1 rotations；Similarly B phases
It is identical, collectively constitute torque system；Winding C1 is concatenated with winding C2, is passed through electric current, generates control magnetic field, is generated with permanent-magnetic clamp
Bias magnetic field superposition provides suspending power；Similarly winding D1, winding D2 is identical, realizes mixing outer rotor magnetic suspension switched reluctance motor
The radial two-freedom of a 5 motors part suspends.
As shown in figure 3, mixing outer rotor magnetic suspension switched reluctance motor of the present invention 5 is by motor one and motor two
Composition, motor two include rotor a5-7, and stator a5-8, winding a5-9, for stator a5-8 inside rotor a5-7, the two is same with one heart
Axis stays radial air gap between rotor a5-7 and stator a5-8, winding a5-9 lap wounds on motor stator a5-8, winding E1 with
Winding E2 concatenations, winding F1 are concatenated with winding F2, are passed through electric current and are generated control magnetic field, the bias magnetic field generated with permanent-magnetic clamp is superimposed
Suspending power is provided, realizes that the radial two-freedom of rotor a5-7 suspends.
As shown in figure 4, mixing outer rotor magnetic suspension switched reluctance motor 5 of the present invention by
Motor one and motor two form, and embedded permanent-magnetic clamp 5-10 between stator 5-2 and stator a5-8, thickness is no more than stator 5-2 and determines
The yoke of sub- a5-8 is high.
As shown in figure 5, unloading-axial mixed magnetic bearing of the present invention includes：Upper stator 3-1, lower stator 3-2,
Upper stator winding 3-3, lower stator winding 3-4, permanent-magnetic clamp 3-5 and sucker 3-6 compositions.Upper stator 3-1 is opposite with lower stator 3-2 to be inhaled
Disk is unsymmetric structure, and the axial cross section of upper stator 3-1 and lower stator 3-2 in 2 side of shaft is U-shaped, wherein going up stator 3-1's
The U-shaped mouth of U-shaped mouth and lower stator 3-2 are oppositely arranged, and the U-shaped bottom face of upper stator 3-1 is embedded with permanent-magnetic clamp 3-5, upper stator winding 3-3
In the U-shaped mouth of upper stator 3-1, lower stator winding 3-4 realizes that the axial direction of shaft 2 is outstanding in the U-shaped mouth of lower stator 3-2
Floating, collar plate shape sucker 3-6 is nested in shaft 2, and there are air gaps between sucker 3-6 and upper stator 3-1, lower stator 3-2.
As shown in fig. 6, under unloading of the present invention-axial mixed magnetic bearing undisturbed unloaded mode of operation operation
Principle is：Magnetic flux φ caused by the permanent-magnetic clamp 3-5 of radial magnetizingmBy upper stator 3-1, air gap, sucker 3-6, upper stator 3-1
Form closed circuit.At this point, lower stator winding 3-3 and upper stator winding 3-4 do not work.Magnetic field makes stator 3-1 and sucker
Between generate Maxwell force, form suspending power axially upward, realize offloading functions.
As shown in fig. 7, the operation of unloading of the present invention-axial mixed magnetic bearing permanent magnetism demagnetization unloaded mode of operation
Principle is：When permanent magnet 3-5 demagnetizes, air-gap flux becomes smaller, and is defined as φdm, axial relieving capacity is deteriorated, by fixed in adjusting
Winding 3-3 size of current in sub- 3-1, and then generate control magnetic flux φc, the biasing magnetic flux φ with original permanent magnet 3-5 generationsdm
Superposition forms resultant flux φdm+φc, realize that sucker 3-6 axial directions stablize unloading, the magnetic flux for increasing stator air gap is close
Degree, and then improve the axial suspension power that sucker 3-6 is subject in the directions z+.
As shown in figure 8, unloading of the present invention-axial mixed magnetic bearing axially disturbs lower dynamic equilibrium shaping modes
Operation logic be：When sucker 3-6 deviates equilbrium position bias downwards (shown in such as Fig. 8 (a)), upper stator 3-1 and sucker 3-6
Between air gap become larger, air-gap reluctance accordingly increases, cause permanent magnet 3-5 generate air-gap flux become smaller, be defined as φm *.It leads
What cause sucker 3-6 was subject to becomes smaller along the suspending power in the directions z+, and the unloading that permanent magnet single at this time cannot achieve sucker 3-6 is wanted
It asks, needs to control stator winding 3-3, be allowed to generate and the superimposed magnetic flux φ of permanent magnet 3-5 bias magnetic fieldsc, upper at this time fixed
Sub- air-gap flux is φc+φm *, air gap flux density accordingly increases, and then the directions the z+ suspending power suffered by sucker 3-6 increases.
When sucker 3-6 is by upward perturbed force, when eccentric axially upward (shown in such as Fig. 8 (b)), upper stator 3-1 with inhale
Air gap between disk 3-6 becomes smaller, and air-gap reluctance table is small, and the magnetic flux that permanent magnet 3-5 is generated becomes larger, and is defined as φm *.Lead to sucker
3-6 is become larger by the suspending power generated along the directions z+ permanent magnetism, trend of the aggravation sucker 3-6 along the directions z+ bias.It can lead at this time
It crosses stator winding 3-3 and lower stator 3-2 to be used cooperatively, generates the synthesis suspending power along the directions z-：Stator winding 3-3 in control
Flow direction generates the control magnetic flux φ opposite with permanent magnet fluxuc, then sucker 3-6 is generated by upper stator 3-1 resultant flux
For φm *-φuc, when the power which generates is less than shafting gravity, sucker 3-6 is to bottom offset；If upper stator 3-1 is closed at this time
When at magnetic flux still greater than shafting gravity, lower stator winding 3-4, the corresponding magnetic flux of generation need to be connecteducSo that sucker 3-6
By along the downward resultant force of shafting, ensure sucker 3-6 to bottom offset.By stator winding 3-3 in real-time control and lower stator around
Group 3-4, may be implemented the real-time dynamic equilibrium of sucker 3-6.
To sum up, a kind of highly integrated energy accumulation device for fly wheel of the invention, the device is by vacuum tank 1, shaft 2, unloading-axial direction
Hybrid magnetic bearing 3, flywheel 4, mixing outer rotor magnetic suspension switched reluctance motor 5.The installation of 2 upper end of energy accumulation device for fly wheel shaft is unloaded
Load-axial mixed magnetic bearing 3 can be solved instead of the mechanical replacement bearing and unloading bearing in conventional flywheel device because of axis
Hold energy loss problem caused by friction.Unloading-axial mixed magnetic bearing 3 shares motor axial load as unloading bearing, real
The axial weight unloading of existing flywheel energy storage system, overcomes flywheel shaft weight and dynamic loading, and it is outstanding to ensure that flywheel shaft is axially stablized
It is floating, the bearing of flywheel shaft axial suspension is provided.The outer rotor of mixing outer rotor magnetic suspension switched reluctance motor 5 can directly drive
Flywheel saves mechanical driving device, compact-sized, realizes high speed rotation energy storage；Other than electronic/generating function, while can be with
Radial four-degree-of-freedom suspending power is provided.The present invention can directly drive flywheel using mixing outer rotor magnetic suspension switched reluctance motor
Feature and high speed organically combine unloading-axial mixed magnetic bearing and unload controllable suspension feature by force, realize flywheel from suspension function
Five degree of freedom low-loss, highly reliable suspension, and the flywheel speed of service is improved, reduce system power dissipation and volume.
According to the above, the present invention can be realized.To those skilled in the art in the spirit without departing substantially from the present invention
Other changes and modifications with being made in the case of protection domain, are included within the scope of the present invention.
Claims (8)
1. a kind of energy accumulation device for fly wheel, it is characterised in that：Including vacuum tank (1), shaft (2), unloading-axial mixed magnetic bearing
(3), flywheel (4) and mixing outer rotor magnetic suspension switched reluctance motor (5)；The upper end of shaft (2) is installed by unloading-axial backmixing magnetic
Bearing (3), shares motor radial load；- axial mixed magnetic bearing (3) offer shaft (2) axial suspension support is provided simultaneously；Turn
Axis (2) lower end is cased with flywheel (4), and is pierced by from flywheel (4) center and is connected with flywheel (4)；Turn for mixing is outer on the inside of flywheel (4)
Sub- magnetic suspension switched reluctance motor (5), flywheel (4) are directly nested in the outer of mixing outer rotor magnetic suspension switched reluctance motor (5)
On portion's rotor, high speed rotation energy storage is realized；Other than electronic/generating function, while radial four-degree-of-freedom suspending power is provided, and unloaded
Load-axial mixed magnetic bearing (3) collective effect realizes the energy accumulation device for fly wheel of five-freedom degree full-suspension.
2. a kind of energy accumulation device for fly wheel according to claim 1, it is characterised in that：Mix outer rotor magnetic levitation switch magnetic resistance
Motor (5) is made of motor one and motor two, and motor one includes rotor (5-1), stator (5-2), winding (5-3), suspension system
(5-4), antifreeze plate (5-5), torque system (5-6), stator (5-2) is internal in rotor (5-1), the two concentric co-axial, and motor turns
Radial air gap, winding (5-3) lap wound is stayed to separately constitute motor on motor stator (5-2) between sub (5-1) and stator (5-2)
One suspension system and torque system；The wherein winding A of A phase windings1, winding A2, winding A3, winding A4Concatenation constitutes A phase torques
Winding applies electric current, and rotor (5-1) is pulled to rotate；Similarly B phases are identical, collectively constitute torque system；Winding C1 goes here and there with winding C2
It connects, is passed through electric current, generate control magnetic field, be superimposed with the bias magnetic field that permanent-magnetic clamp generates and suspending power is provided；Similarly winding D1, winding
D2 is identical, realizes that the radial two-freedom of mixing outer rotor magnetic suspension switched reluctance motor (5) motor part suspends；Motor two wraps
Rotor a (5-7), stator a (5-8), winding a (5-9) are included, stator a (5-8) is internal in rotor a (5-7), the two concentric co-axial, electricity
Radial air gap is stayed between machine rotor a (5-7) and stator a (5-8), winding a (5-9) lap wounds are on motor stator a (5-8), winding
E1 is concatenated with winding E2, and winding F1 is concatenated with winding F2, is passed through electric current and is generated control magnetic field, the bias magnetic field generated with permanent-magnetic clamp
Superposition provides suspending power, realizes that the radial two-freedom of rotor a (5-7) suspends.
3. a kind of energy accumulation device for fly wheel according to claim 2, it is characterised in that：Motor one is double-salient-pole structure, stator
There are the wide suspension salient pole tooth of the equal polar arc of 4 be arranged at equal intervals respectively and 8 equal wide torque salient pole teeth of polar arc on (5-2), carries
For torque and suspending power, there is the wide salient pole tooth of the equal polar arc of 14 be arranged at equal intervals on rotor (5-1).
4. a kind of energy accumulation device for fly wheel according to claim 3, it is characterised in that：Stator (5-2) and stator a (5-8) it
Between embedded permanent-magnetic clamp (5-9), thickness is no more than stator (5-2) and the yoke height of stator a (5-8).
5. a kind of energy accumulation device for fly wheel according to claim 2, it is characterised in that：Motor two is outer rotor quadrupole magnetic axis
It holds, stator a (5-8) is set at equal intervals there are four suspension pole.
6. a kind of energy accumulation device for fly wheel according to claim 1, it is characterised in that：Unloading-axial mixed magnetic bearing (3) is wrapped
Include stator (3-1), lower stator (3-2), upper stator winding (3-3), lower stator winding (3-4), permanent-magnetic clamp (3-5) and sucker
(3-6)；Upper stator (3-1) is unsymmetric structure, upper stator (3-1) and lower stator with respect to sucker (3-6) with lower stator (3-2)
The axial cross section of (3-2) in shaft (2) side is U-shaped, wherein the U-shaped mouth of upper stator (3-1) and lower stator (3-2) is U-shaped
Mouth is oppositely arranged, and the U-shaped bottom face of upper stator (3-1) is embedded with permanent-magnetic clamp (3-5), and upper stator winding (3-3) is embedded in upper stator (3-1)
U-shaped mouth in, lower stator winding (3-4) embedded in lower stator (3-2) U-shaped mouth in, realize shaft (2) axial suspension, disk
Type sucker (3-6) is nested in shaft (2), and there are air gaps between sucker (3-6) and upper stator (3-1), lower stator (3-2).
7. a kind of energy accumulation device for fly wheel according to claim 2, it is characterised in that：Mix outer rotor magnetic levitation switch magnetic resistance
Motor (5) stator (5-2), stator a (5-8), rotor (5-1) and rotor a (5-7) material are superposed for silicon steel sheet.
8. a kind of energy accumulation device for fly wheel according to claim 2, it is characterised in that：Mix outer rotor magnetic levitation switch magnetic resistance
Motor (5) permanent-magnetic clamp (5-9) material is neodymium iron boron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810229766.5A CN108471193A (en) | 2018-03-20 | 2018-03-20 | A kind of highly integrated energy accumulation device for fly wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810229766.5A CN108471193A (en) | 2018-03-20 | 2018-03-20 | A kind of highly integrated energy accumulation device for fly wheel |
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| Publication Number | Publication Date |
|---|---|
| CN108471193A true CN108471193A (en) | 2018-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810229766.5A Pending CN108471193A (en) | 2018-03-20 | 2018-03-20 | A kind of highly integrated energy accumulation device for fly wheel |
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| Country | Link |
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| CN (1) | CN108471193A (en) |
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| CN110165821A (en) * | 2019-05-09 | 2019-08-23 | 江苏大学 | A kind of novel horizontal self-evacuating vacuum room high integration energy accumulation device for fly wheel |
| CN111740559A (en) * | 2020-07-06 | 2020-10-02 | 南京工程学院 | Disc type asynchronous motor, flywheel energy storage device, rotor suspension control system and method |
| CN113037001A (en) * | 2021-02-22 | 2021-06-25 | 江苏大学 | Flywheel energy storage device based on outer rotor bearingless permanent magnet synchronous motor |
| CN113258712A (en) * | 2021-04-15 | 2021-08-13 | 江苏大学 | High-integration weak-coupling magnetic suspension flywheel battery |
| CN113328566A (en) * | 2021-06-28 | 2021-08-31 | 石家庄铁道大学 | Inner stator type high-temperature superconducting flywheel energy storage system and energy storage method |
| CN113719540A (en) * | 2021-08-27 | 2021-11-30 | 中国人民解放军海军工程大学 | Asymmetric axial magnetic bearing device with one-way high bearing capacity density |
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| CN104410204A (en) * | 2014-11-28 | 2015-03-11 | 江苏大学 | Novel flywheel energy storage device |
| CN107070073A (en) * | 2017-03-29 | 2017-08-18 | 江苏大学 | A kind of magnetic suspending flying wheel battery |
| CN107070072A (en) * | 2017-03-29 | 2017-08-18 | 江苏大学 | A kind of suspension of five-freedom degree magnetic energy accumulation device for fly wheel |
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| US6049150A (en) * | 1999-03-18 | 2000-04-11 | Chudleigh, Jr.; Walter Harold | Flywheel with electrically controlled input and output |
| CN102684365A (en) * | 2012-05-08 | 2012-09-19 | 江苏大学 | Flywheel energy storage device adopting bearingless switched reluctance motor |
| CN104410204A (en) * | 2014-11-28 | 2015-03-11 | 江苏大学 | Novel flywheel energy storage device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110165821A (en) * | 2019-05-09 | 2019-08-23 | 江苏大学 | A kind of novel horizontal self-evacuating vacuum room high integration energy accumulation device for fly wheel |
| CN111740559A (en) * | 2020-07-06 | 2020-10-02 | 南京工程学院 | Disc type asynchronous motor, flywheel energy storage device, rotor suspension control system and method |
| CN113037001A (en) * | 2021-02-22 | 2021-06-25 | 江苏大学 | Flywheel energy storage device based on outer rotor bearingless permanent magnet synchronous motor |
| CN113258712A (en) * | 2021-04-15 | 2021-08-13 | 江苏大学 | High-integration weak-coupling magnetic suspension flywheel battery |
| CN113258712B (en) * | 2021-04-15 | 2022-07-22 | 江苏大学 | High-integration weak-coupling magnetic suspension flywheel battery |
| CN113328566A (en) * | 2021-06-28 | 2021-08-31 | 石家庄铁道大学 | Inner stator type high-temperature superconducting flywheel energy storage system and energy storage method |
| CN113328566B (en) * | 2021-06-28 | 2022-04-26 | 石家庄铁道大学 | Inner stator type high-temperature superconducting flywheel energy storage system and energy storage method |
| CN113719540A (en) * | 2021-08-27 | 2021-11-30 | 中国人民解放军海军工程大学 | Asymmetric axial magnetic bearing device with one-way high bearing capacity density |
| CN113719540B (en) * | 2021-08-27 | 2022-12-20 | 中国人民解放军海军工程大学 | Asymmetric axial magnetic bearing device with one-way high bearing capacity density |
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Application publication date: 20180831 |