CN102403829A - Coaxial motor system, generator system and motor system - Google Patents
Coaxial motor system, generator system and motor system Download PDFInfo
- Publication number
- CN102403829A CN102403829A CN2011103911440A CN201110391144A CN102403829A CN 102403829 A CN102403829 A CN 102403829A CN 2011103911440 A CN2011103911440 A CN 2011103911440A CN 201110391144 A CN201110391144 A CN 201110391144A CN 102403829 A CN102403829 A CN 102403829A
- Authority
- CN
- China
- Prior art keywords
- energy storage
- magnetic
- flywheel
- motor
- magnetic levitation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/55—Flywheel systems
Abstract
This invention relates to a coaxial motor system, a generator system and a motor system; the coaxial motor system comprises at least one pair of magnetic-suspension energy-storing flywheel motors which are mounted coaxially, wherein the one pair of magnetic-suspension energy-storing flywheel motors have same structures and inverse running directions and appear zero momentum externally; the magnetic-suspension energy-storing flywheel motors comprise central shafts, stators fixed on the central shafts, flywheel rotors rotationally supported on the central shafts through gyrating shafts, wherein the gyrating shafts comprise axial magnetic-suspension bearings and radial ball bearings which are precisely matched with the central shafts; the outer rings of the ball bearings are elastically matched with the axle systems of the gyrating shafts through elastic sleeve rings so as to form elastic support; because the one pair of magnetic-suspension energy-storing flywheel motors appear zero momentum externally, the stable operation of a system can be ensured, mechanical performance is good, the efficiency of the flywheel motors is increased, the service life of the flywheel motors is prolonged, and cost is low.
Description
Technical field
The present invention relates to magnetic suspension motor, more particularly, relate to coaxial motor system, generator system and electric motor system.
Background technology
Flywheel energy storage system is a kind of novel energy converting between mechanical and storage device; Advantage such as have that long service life, conversion efficiency are high, adaptability is strong and pollution-free has a wide range of applications in fields such as Aero-Space, distributed power generation, power peak regulation, wind generator system and electric automobiles.
Tradition accumulated energy flywheel motor adopts high-speed permanent magnet motor, for the various losses that reduce to produce at a high speed, adopts the distributed winding magneto, and the winding overhang of distributed winding magneto is very big, and copper loss is bigger.And traditional accumulated energy flywheel motor adopts mechanical bearing, and the mechanical loss that the flywheel high-speed cruising produces is bigger, and influences the useful life of accumulated energy flywheel motor.Existing high-performance accumulated energy flywheel motor adopts Active Magnetic Suspending Bearing, though its mechanical loss is very little, its price is very high, and ratio of rigidity is lower, has hindered its practical application.
Summary of the invention
The technical problem that the present invention will solve is; To the above-mentioned defective of prior art, a kind of coaxial motor system, generator system and electric motor system are provided, it can make the rotation of magnetic levitation energy storage flywheel motor balance and stability; Better mechanical property; Improved the efficient of fly-wheel motor, prolonged the useful life of fly-wheel motor, cost is lower.
The technical solution adopted for the present invention to solve the technical problems is; A kind of coaxial motor system is provided; Comprise a pair of coaxial mounted magnetic levitation energy storage flywheel motor, the structure of said a pair of magnetic levitation energy storage flywheel motor is identical, and rotation direction is opposite; Externally present zero momentum, and said magnetically levitated flywheel motor comprises:
Central shaft;
Stator is fixed in said central shaft;
Flywheel rotor; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit, and said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
According to magnetic levitation energy storage flywheel motor of the present invention, the stator punching end of said stator is equipped with the switch Hall element that three spaces differ 120 ° of electrical degrees.
According to magnetic levitation energy storage flywheel motor of the present invention, the section thickness of said elastic collar is 0.5 millimeter to 5 millimeters.
According to magnetic levitation energy storage flywheel motor of the present invention, said elastic collar forms through the bearing chamber perfusion elastic gum at said gyroaxis.
According to magnetic levitation energy storage flywheel motor of the present invention, said magnetic levitation energy storage flywheel motor also comprises vacuum envelope, and said vacuum envelope is connected with said central shaft.
According to magnetic levitation energy storage flywheel motor of the present invention, the magnetic levitation energy storage flywheel motor comprises 4 permanent magnetism magnetic poles, is made up of 28 blocks of alternate magnet steel that are mounted on said flywheel rotor inwall, and each magnetic pole comprises 7 blocks of alternate magnet steel that mount of homopolarity;
Said stator comprises 18 stator slots.
According to magnetic levitation energy storage flywheel motor of the present invention, the ratio of the notch size of said stator slot and the spacing of adjacent magnet steel is 1.4～1.6.
According to magnetic levitation energy storage flywheel motor of the present invention; The winding mode of three phase windings of said stator is:
wherein
expression 1 groove advance, → 6 the expression 6 grooves go out.
According to magnetic levitation energy storage flywheel motor of the present invention, the internal stator of magnetic suspension bearing and external rotor comprise the annular magnetic steel ring of at least two axial chargings respectively,
The annular magnetic steel ring of said internal stator is identical with the axial height of the annular magnetic steel ring of said external rotor, and internal stator magnet steel circle is positioned at external rotor magnet steel circle inside.
According to magnetic levitation energy storage flywheel motor of the present invention, be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said internal stator; Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said external rotor.
According to magnetic levitation energy storage flywheel motor of the present invention, the physics air gap between the annular magnetic strength circle of the annular magnetic steel ring of said internal stator and said external rotor is 0.2 millimeter to 5 millimeters.
According to magnetic levitation energy storage flywheel motor of the present invention; Said internal stator and said external rotor comprise the annular magnetic steel ring of 5 axial chargings respectively; The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is NSNSN, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is SNSNS; The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is SNSNS, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is NSNSN.
According to magnetic levitation energy storage flywheel motor of the present invention; Said flywheel rotor external diameter is a carbon steel for the flywheel material of
to
flywheel rotor, the rotating speed ± 16000rpm of said flywheel.
According to magnetic levitation energy storage flywheel motor of the present invention; The flywheel material of the said flywheel rotor of said flywheel external diameter
is glass fiber or carbon fiber, the maximum speed of said flywheel is respectively ± 20000rpm or ± 60000rpm.
According to magnetic levitation energy storage flywheel motor of the present invention, said magnetic levitation energy storage flywheel motor comprises the control system that is used to control its operation, and said control system comprises with motor drive controller and three-phase bridge rectifier,
When said magnetic levitation energy storage flywheel machine operation during in electric motor state, said motor drive controller is controlled said magnetic levitation energy storage flywheel motor and is quickened or the stable speed operation, converts electrical energy into mechanical kinetic energy;
When said magnetic levitation energy storage flywheel machine operation during in the generator state; Said motor drive controller stops to drive said magnetic levitation energy storage flywheel motor; To carry out full-wave rectification and output to the back-emf of said magnetic levitation energy storage flywheel motor by the three-phase bridge rectifier, convert mechanical kinetic energy into electric energy.
The present invention also provides a kind of generator system, and said generator system comprises a pair of coaxial mounted generator, and said a pair of generator Structure is identical, and rotation direction is opposite, externally presents zero momentum, and said generator comprises:
Central shaft;
Stator is fixed in said central shaft;
Generator amature; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
The present invention also provides a kind of electric motor system, and said electric motor system comprises a pair of coaxial mounted generator, and said a pair of generator Structure is identical, and rotation direction is opposite, externally presents zero momentum, and said generator comprises:
Central shaft;
Stator is fixed in said central shaft;
Motor rotor; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
Coaxial motor of the present invention system comprises at least one pair of coaxial mounted magnetic levitation energy storage flywheel motor, and the rotation direction of a pair of magnetic levitation energy storage flywheel motor is opposite, externally presents zero momentum.Because a pair of magnetic levitation energy storage flywheel motor externally presents zero momentum, can guarantee the operation of system stability.The flywheel rotor of magnetic levitation energy storage flywheel motor is through the rotatable central shaft that is supported in of gyroaxis; Gyroaxis comprises the axial magnetic suspension bearing and the radial ball bearing of coaxial setting; Axial magnetic suspension bearing is the support flying wheel rotor in the axial direction; Can offset the deadweight of flywheel rotor, reach the purpose of axial unloading, improve efficiency of motor; The ball bearing outer ring is a resilient engagement through the axle of elastic collar and gyroaxis simultaneously; Form resiliency supported; Thereby radial deflection does not take place and reduces electric efficiency in the rotating shaft that guarantees flywheel rotor, makes the rotation of magnetic levitation energy storage flywheel motor balance and stability, and the axle of radial ball bearing and gyroaxis is that resilient engagement can make ball bearing not bear big pressure and causes wearing and tearing simultaneously; Has mechanical performance preferably; Prolonged the useful life of fly-wheel motor, the implementation of elastic collar is simple simultaneously, and cost is lower.Whereby, it can make the rotation of magnetic levitation energy storage flywheel motor balance and stability the present invention, and better mechanical property has improved the efficient of fly-wheel motor, has prolonged the useful life of fly-wheel motor, and cost is lower.
Preferably, the present invention adopts concentrated winding, and winding overhang is little, and copper loss reduces 20%, and motor stator notch size and magnetic steel gap Optimum Matching minimize the location torque of motor.
Description of drawings
To combine accompanying drawing and embodiment that the present invention is described further below
Fig. 1 is the structure principle chart of coaxial motor of the present invention system;
Fig. 2 is the structure principle chart of a magnetic levitation energy storage flywheel motor in the preferred embodiment of the present invention;
Fig. 3 is the structure principle chart that the present invention selects axial magnetic suspension bearing among the embodiment;
Fig. 4 is the series system sketch map that the present invention uses two motor windings in two coaxial installation accumulated energy flywheel motor preferred embodiments simultaneously;
Fig. 5 is P=4 in the embodiment of the invention, the cross-section structure schematic diagram of S=18 external rotor accumulated energy flywheel motor;
Fig. 6 is the schematic diagram of the control system of a magnetic levitation energy storage flywheel motor in the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the present invention, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
As depicted in figs. 1 and 2, a kind of coaxial motor of the present invention system comprises a pair of coaxial mounted magnetic levitation energy storage flywheel motor 100, and the structure of a pair of magnetic levitation energy storage flywheel motor 100 is identical, and rotation direction is opposite, externally presents zero momentum.Magnetic levitation energy storage flywheel motor 100 comprises: vacuum envelope 7, be connected and fixed on central shaft 8, the stator 9 that is fixed in central shaft 8 and flywheel rotor 10 in the vacuum envelope 7.
Stator punching 12 (stator punching the is seen Fig. 5) end of stator 9 is equipped with the switch Hall element 3 that three spaces differ 120 ° of electrical degrees; The air-gap field that the sensitive direction of switch Hall element 3 forms towards flywheel rotor 10 permanent magnets is with the variation of sensing air-gap field.
Magnetic levitation energy storage flywheel motor 100 also comprises the control system 20 (seeing Fig. 6 for details) that is used to control its running simultaneously; During 100 work of magnetic levitation energy storage flywheel motor; Make it work in electric motor state by control system 20 driven magnetic levitation energy-storing flywheel motors, 100 acceleration or stable speed operation, storage 0.5J Ω during flywheel rotor 10 high speed rotating
2Kinetic energy, wherein J is the moment of inertia of accumulated energy flywheel rotor 10, Ω is the angular speed of flywheel rotor.When magnetic levitation energy storage flywheel motor 100 worked in the generator state, control system 20 stopped magnetic levitation energy storage flywheel motor 100 is driven, and simultaneously the back-emf of fly-wheel motor magnetic levitation energy storage flywheel motor 100 was realized full-wave rectification and was exported 0.5J Ω
2Kinetic energy changes electric energy into.
Coaxial motor of the present invention system comprises at least one pair of coaxial mounted magnetic levitation energy storage flywheel motor 100, and the rotation direction of a pair of magnetic levitation energy storage flywheel motor 100 is opposite, externally presents zero momentum, can guarantee the operation of system stability.Axial magnetic suspension bearing 4 is support flying wheel rotor 10 in the axial direction, can offset the deadweight of flywheel rotor 10, reaches the purpose of axial unloading, has improved efficiency of motor; Ball bearing 5 outer rings are resilient engagement through the axle of elastic collar 6 and gyroaxis 11 simultaneously; Form resiliency supported; Thereby radial deflection does not take place and reduces electric efficiency in the rotating shaft that guarantees flywheel rotor 10, makes the rotation of magnetic levitation energy storage flywheel motor 100 balance and stabilities, and the axle of radial ball bearing 5 and gyroaxis 11 is that resilient engagement can make ball bearing 5 not bear big pressure and causes wearing and tearing simultaneously; Has mechanical performance preferably; Prolonged the useful life of fly-wheel motor, the implementation of elastic collar 6 is simple simultaneously, and cost is lower.Whereby, it can make the rotation of magnetic levitation energy storage flywheel motor 100 balance and stabilities the present invention, and better mechanical property has improved the efficient of fly-wheel motor, has prolonged the useful life of fly-wheel motor 100, and cost is lower.
Preferably, vacuum envelope 7 seals whole magnetic levitation energy storage flywheel motor 100, through a unidirectional vacuum pumping opening and vacuum air pump, can keep vacuum degree below 10Pa to carrying out vacuum suction in the vacuum envelope (7).
Like Fig. 2 and shown in Figure 5, magnetic levitation energy storage flywheel motor 100 flywheel rotors 10 comprise magnet steel 2 and the flywheel 1 that is mounted on flywheel rotor 10 inwalls.Stator 9 comprises stator punching 12, stator slot 13 and is wrapped in the winding on the stator 9.
Magnetic levitation energy storage flywheel motor 100 comprises 4 permanent magnetism magnetic poles, is made up of 28 blocks of alternate magnet steel 2 that are mounted on flywheel rotor 10 inwalls, and each magnetic pole comprises 7 blocks of alternate magnet steel that mount 2 of homopolarity.The stator 9 of fly-wheel motor 100 comprises 18 stator slots 13.The ratio of the notch size of stator slot 13 and the spacing of adjacent magnet steel 2 is 1.4～1.6; This ratio is the notch size of stator slot 13 and the spacing Optimum Matching of adjacent magnet steel 2; The location torque of motor is minimized; Location torque (DETENT TORQUE) is meant that motor does not have under the situation of energising, and stator pins the moment of rotor.
The winding mode of three phase windings of stator 9 is:
wherein
expression 1 groove advance; → 6 expressions 6 grooves go out, and other stator slots in like manner.Simultaneously, the present invention adopts and concentrates the winding mode, and winding overhang is little, and copper loss reduces 20%,
As shown in Figures 2 and 3; Magnetic suspension bearing 4 comprises internal stator 41 and external rotor 42; And internal stator 41 and external rotor 42 comprise the annular magnetic steel ring of at least two axial chargings respectively; The annular magnetic steel ring of internal stator 41 is identical with the axial height of the annular magnetic steel ring of external rotor 42, and the annular magnetic steel ring of internal stator 41 is positioned at the annular magnetic steel ring inside of external rotor 42.In inventive embodiment, internal stator 41 and external rotor 42 include 5 annular magnetic steel rings, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of internal stator 41 is NSNSN, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of external rotor 42 is SNSNS; Also can be set to, the polarity ordering of 5 annular magnetic steel ring upper surfaces of internal stator 41 is SNSNS, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of external rotor 42 is NSNSN.
Preferably the physics air gap between internal stator 41 and the external rotor 42 43 is 0.2 millimeter to 5 millimeters, and the physics size of gaps is relevant with the size of fly-wheel motor 100.Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin 44 between the annular magnetic steel ring of internal stator 41, be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin 44 between the annular magnetic steel ring of external rotor 42.Because the polarity of the adjacently situated surfaces of two annular magnetic steel rings is identical up and down, two adjacent magnet steel circles generations are up and down repelled, for ease of neighbouring annular magnetic strength circle is linked together, non-magnetic conduction dottle pin 44 is set between neighbouring annular magnetic steel ring.
Preferably; Flywheel rotor 10 external diameters are carbon steel for the material of the flywheel 1 of
to
flywheel rotor 10, the rotating speed ± 16000rpm of flywheel 1.Because the rotating speed of flywheel 1 is too high will be owing to centrifugal force ruptures than ambassador's carbon steel; Therefore if flywheel 1 need reach bigger rotating speed; Need select the rigidity better material for use; Elect glass fiber or carbon fiber as like the material of flywheel 1, the external diameter of flywheel 1
can make the maximum speed of flywheel rotor 10 reach ± 20000rpm or ± 60000rpm.
As shown in Figure 6; The control system 20 of magnetic levitation energy storage flywheel motor 100 comprises: motor drive controller 21, three-phase bridge rectifier 22, electric generator/electric motor 23 and power supply and central controller 24, electric generator/electric motor 23 work in the equivalence replacement structure of different conditions for magnetic levitation energy storage flywheel motor 100.
When magnetic levitation energy storage flywheel motor 100 worked in electric motor state, motor drive controller 21 control magnetic levitation energy storage flywheel motors 100 quickened or the stable speed operation, convert electrical energy into 0.5J Ω
2Mechanical kinetic energy stores; When magnetic levitation energy storage flywheel motor 100 works in the generator state; Motor drive controller 21 stops driven magnetic levitation energy-storing flywheel motor 100; To carry out full-wave rectification and output to the back-emf of magnetic levitation energy storage flywheel motor 100 by three-phase bridge rectifier 22, with 0.5J Ω
2Mechanical kinetic energy converts electric energy into.
The concrete connected mode of winding of a kind of coaxial motor of the present invention system is as shown in Figure 4.Magnetic levitation energy storage flywheel motor of the present invention and coaxial motor system can be used for fields such as Aero-Space, distributed power generation, power peak regulation, wind generator system and electric automobile, so range of application very extensively.
The present invention also provides a kind of generator, continues referring to figs. 1 through Fig. 5, comprises at least one pair of coaxial mounted generator, and the rotation direction of said a pair of generator is opposite, externally presents zero momentum, and said generator comprises: axle; Stator is fixed in said central shaft; Generator amature; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
The stator punching end of said stator is equipped with the switch Hall element that three spaces differ 120 degree electrical degrees.
The section thickness of said elastic collar is 0.5 millimeter to 5 millimeters.Said elastic collar forms through the bearing chamber perfusion elastic gum at said gyroaxis.
Said generator also comprises vacuum envelope, and said vacuum envelope is connected with said central shaft.
Generator comprises 4 permanent magnetism magnetic poles, is made up of 28 blocks of alternate magnet steel that are mounted on said generator amature inwall, and each magnetic pole comprises 7 blocks of alternate magnet steel that mount of homopolarity; Said stator comprises 18 stator slots.
The ratio of the notch size of said stator slot and the spacing of adjacent magnet steel is 1.4～1.6.The winding mode of three phase windings of said stator is:
wherein
expression 1 groove advance, → 6 the expression 6 grooves go out.
Magnetic suspension bearing comprises internal stator and external rotor; And said internal stator and external rotor comprise the annular magnetic steel ring of at least two axial chargings respectively; The annular magnetic steel ring of said internal stator is identical with the axial height of the annular magnetic steel ring of said external rotor, and the annular magnetic steel ring of said internal stator is positioned at the annular magnetic steel ring inside of said external rotor.Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said internal stator; Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said external rotor.Physics air gap between the annular magnetic strength circle of the annular magnetic steel ring of said internal stator and said external rotor is 0.2 millimeter to 5 millimeters.Said internal stator and said external rotor comprise the annular magnetic steel ring of 5 axial chargings respectively; The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is NSNSN, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is SNSNS; The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is SNSNS, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is NSNSN.
Said generator amature external diameter is a carbon steel for the flywheel material of
to
generator amature, the rotating speed ± 16000rpm of said flywheel.The flywheel material of the said generator amature of perhaps said flywheel external diameter
is glass fiber or carbon fiber, the maximum speed of said flywheel is respectively ± 20000rpm or ± 60000rpm.
The present invention also provides a kind of motor, continues referring to figs. 1 through Fig. 5, comprises at least one pair of coaxial mounted motor, and the rotation direction of said pair of motors is opposite, externally presents zero momentum, and said motor comprises: axle; Stator is fixed in said central shaft; Motor rotor; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
The stator punching end of said stator is equipped with the switch Hall element that three spaces differ 120 degree electrical degrees.
The section thickness of said elastic collar is 0.5 millimeter to 5 millimeters.Said elastic collar forms through the bearing chamber perfusion elastic gum at said gyroaxis.
Said motor also comprises vacuum envelope, and said vacuum envelope is connected with said central shaft.
Motor comprises 4 permanent magnetism magnetic poles, is made up of 28 blocks of alternate magnet steel that are mounted on said motor rotor inwall, and each magnetic pole comprises 7 blocks of alternate magnet steel that mount of homopolarity; Said stator comprises 18 stator slots.
The ratio of the notch size of said stator slot and the spacing of adjacent magnet steel is 1.4～1.6.The winding mode of three phase windings of said stator is:
wherein
expression 1 groove advance, → 6 the expression 6 grooves go out.
Magnetic suspension bearing comprises internal stator and external rotor; And said internal stator and external rotor comprise the annular magnetic steel ring of at least two axial chargings respectively; The annular magnetic steel ring of said internal stator is identical with the axial height of the annular magnetic steel ring of said external rotor, and the annular magnetic steel ring of said internal stator is positioned at the annular magnetic steel ring inside of said external rotor.Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said internal stator; Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said external rotor.Physics air gap between the annular magnetic strength circle of the annular magnetic steel ring of said internal stator and said external rotor is 0.2 millimeter to 5 millimeters.Said internal stator and said external rotor comprise the annular magnetic steel ring of 5 axial chargings respectively; The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is NSNSN, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is SNSNS; The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is SNSNS, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is NSNSN.
Said motor rotor external diameter is a carbon steel for the flywheel material of
to
motor rotor, the rotating speed ± 16000rpm of said flywheel.The flywheel material of the said motor rotor of perhaps said flywheel external diameter
is glass fiber or carbon fiber, the maximum speed of said flywheel is respectively ± 20000rpm or ± 60000rpm.
In sum, coaxial motor of the present invention system comprises at least one pair of coaxial mounted magnetic levitation energy storage flywheel motor, and the rotation direction of a pair of magnetic levitation energy storage flywheel motor is opposite, externally presents zero momentum.Because a pair of magnetic levitation energy storage flywheel motor externally presents zero momentum, can guarantee the operation of system stability.The flywheel rotor of magnetic levitation energy storage flywheel motor is through the rotatable central shaft that is supported in of gyroaxis; Gyroaxis comprises the axial magnetic suspension bearing and the radial ball bearing of coaxial setting; Axial magnetic suspension bearing is the support flying wheel rotor in the axial direction; Can offset the deadweight of flywheel rotor, reach the purpose of axial unloading, improve efficiency of motor; The ball bearing outer ring is a resilient engagement through the axle of elastic collar and gyroaxis simultaneously; Form resiliency supported; Thereby radial deflection does not take place and reduces electric efficiency in the rotating shaft that guarantees flywheel rotor, makes the rotation of magnetic levitation energy storage flywheel motor balance and stability, and the axle of radial ball bearing and gyroaxis is that resilient engagement can make ball bearing not bear big pressure and causes wearing and tearing simultaneously; Has mechanical performance preferably; Prolonged the useful life of fly-wheel motor, the implementation of elastic collar is simple simultaneously, and cost is lower.Whereby, it can make the rotation of magnetic levitation energy storage flywheel motor balance and stability the present invention, and better mechanical property has improved the efficient of fly-wheel motor, has prolonged the useful life of fly-wheel motor, and cost is lower.
Above embodiment only is explanation technical conceive of the present invention and characteristics, and its purpose is to let the personage who is familiar with this technology can understand content of the present invention and enforcement in view of the above, can not limit protection scope of the present invention.All equalizations of being done with claim scope of the present invention change and modify, and all should belong to the covering scope of claim of the present invention.
Claims (17)
1. a coaxial motor system is characterized in that, comprises a pair of coaxial mounted magnetic levitation energy storage flywheel motor, and the structure of said a pair of magnetic levitation energy storage flywheel motor is identical, and rotation direction is opposite, externally presents zero momentum, and said magnetically levitated flywheel motor comprises:
Central shaft;
Stator is fixed in said central shaft;
Flywheel rotor; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit, and said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
2. magnetic levitation energy storage flywheel motor according to claim 1 is characterized in that, the stator punching end of said stator is equipped with the switch Hall element that three spaces differ 120 degree electrical degrees.
3. magnetic levitation energy storage flywheel motor according to claim 1 is characterized in that, the section thickness of said elastic collar is 0.5 millimeter to 5 millimeters.
4. magnetic levitation energy storage flywheel motor according to claim 1 is characterized in that, said elastic collar forms through the bearing chamber perfusion elastic gum at said gyroaxis.
5. magnetic levitation energy storage flywheel motor according to claim 1 is characterized in that, said magnetic levitation energy storage flywheel motor also comprises vacuum envelope, and said vacuum envelope is connected with said central shaft.
6. according to each described magnetic levitation energy storage flywheel motor of claim 1 to 5; It is characterized in that; The magnetic levitation energy storage flywheel motor comprises 4 permanent magnetism magnetic poles, is made up of 28 blocks of alternate magnet steel that are mounted on said flywheel rotor inwall, and each magnetic pole comprises 7 blocks of alternate magnet steel that mount of homopolarity;
Said stator comprises 18 stator slots.
7. magnetic levitation energy storage flywheel motor according to claim 6 is characterized in that, the ratio of the notch size of said stator slot and the spacing of adjacent magnet steel is 1.4～1.6.
8. magnetic levitation energy storage flywheel motor according to claim 6; It is characterized in that; The winding mode of three phase windings of said stator is:
wherein
expression 1 groove advance, → 6 the expression 6 grooves go out.
9. magnetic levitation energy storage flywheel motor according to claim 1 is characterized in that magnetic suspension bearing comprises internal stator and external rotor, and said internal stator and external rotor comprise the annular magnetic steel ring of at least two axial chargings respectively,
The annular magnetic steel ring of said internal stator is identical with the axial height of the annular magnetic steel ring of said external rotor, and the annular magnetic steel ring of said internal stator is positioned at the annular magnetic steel ring inside of said external rotor.
10. magnetic levitation energy storage flywheel motor according to claim 9 is characterized in that, is provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said internal stator; Be provided with 0.2 millimeter to 1 millimeter non-magnetic conduction dottle pin between the annular magnetic steel ring of said external rotor.
11., it is characterized in that the physics air gap between the annular magnetic strength circle of the annular magnetic steel ring of said internal stator and said external rotor is 0.2 millimeter to 5 millimeters according to claim 9 or 10 described magnetic levitation energy storage flywheel motors.
12. magnetic levitation energy storage flywheel motor according to claim 11 is characterized in that, said internal stator and said external rotor comprise the annular magnetic steel ring of 5 axial chargings respectively,
The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is NSNSN, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is SNSNS;
The polarity ordering of 5 annular magnetic steel ring upper surfaces of said internal stator is SNSNS, and the polarity ordering of 5 annular magnetic steel ring upper surfaces of said external rotor is NSNSN.
13. magnetic levitation energy storage flywheel motor according to claim 1; It is characterized in that; Said flywheel rotor external diameter is a carbon steel for the flywheel material of
to
flywheel rotor, the rotating speed ± 16000rpm of said flywheel.
14. magnetic levitation energy storage flywheel motor according to claim 1; It is characterized in that; The flywheel material of the said flywheel rotor of said flywheel external diameter
is glass fiber or carbon fiber, the maximum speed of said flywheel is respectively ± 20000rpm or ± 60000rpm.
15. magnetic levitation energy storage flywheel motor according to claim 1 is characterized in that, said magnetic levitation energy storage flywheel motor comprises the control system that is used to control its operation, and said control system comprises with motor drive controller and three-phase bridge rectifier,
When said magnetic levitation energy storage flywheel machine operation during in electric motor state, said motor drive controller is controlled said magnetic levitation energy storage flywheel motor and is quickened or the stable speed operation, converts electrical energy into mechanical kinetic energy;
When said magnetic levitation energy storage flywheel machine operation during in the generator state; Said motor drive controller stops to drive said magnetic levitation energy storage flywheel motor; To carry out full-wave rectification and output to the back-emf of said magnetic levitation energy storage flywheel motor by the three-phase bridge rectifier, convert mechanical kinetic energy into electric energy.
16. a generator system is characterized in that, said generator system comprises a pair of coaxial mounted generator, and said a pair of generator Structure is identical, and rotation direction is opposite, externally presents zero momentum, and said generator comprises:
Central shaft;
Stator is fixed in said central shaft;
Generator amature; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
17. an electric motor system is characterized in that, said electric motor system comprises a pair of coaxial mounted generator, and said a pair of generator Structure is identical, and rotation direction is opposite, externally presents zero momentum, and said generator comprises:
Central shaft;
Stator is fixed in said central shaft;
Motor rotor; Be supported in said central shaft through gyroaxis is rotatable; Said gyroaxis comprises axial magnetic suspension bearing and the radial ball bearing with said central shaft precision-fit; Said ball bearing outer ring is a resilient engagement through the axle of elastic collar and said gyroaxis, forms resiliency supported.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103911440A CN102403829A (en) | 2011-11-30 | 2011-11-30 | Coaxial motor system, generator system and motor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103911440A CN102403829A (en) | 2011-11-30 | 2011-11-30 | Coaxial motor system, generator system and motor system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102403829A true CN102403829A (en) | 2012-04-04 |
Family
ID=45885729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011103911440A Pending CN102403829A (en) | 2011-11-30 | 2011-11-30 | Coaxial motor system, generator system and motor system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102403829A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936250A (en) * | 2019-04-11 | 2019-06-25 | 上海泰初化工技术有限公司 | A kind of flying wheel battery and its application on unmanned plane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6710489B1 (en) * | 2001-08-30 | 2004-03-23 | Indigo Energy, Inc. | Axially free flywheel system |
| US6727616B1 (en) * | 2000-11-08 | 2004-04-27 | Christopher W. Gabrys | Flywheel energy storage system with quill stabilizer |
| US7109622B2 (en) * | 2003-06-06 | 2006-09-19 | Pentadyne Power Corporation | Flywheel system with synchronous reluctance and permanent magnet generators |
| US7750518B1 (en) * | 2006-11-29 | 2010-07-06 | Active Power, Inc. | Transient energy systems and methods for use of the same |
| CN101924417A (en) * | 2009-12-22 | 2010-12-22 | 苏州菲莱特能源科技有限公司 | Flywheel energy storage system with double rigid shafts |
-
2011
- 2011-11-30 CN CN2011103911440A patent/CN102403829A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6727616B1 (en) * | 2000-11-08 | 2004-04-27 | Christopher W. Gabrys | Flywheel energy storage system with quill stabilizer |
| US6710489B1 (en) * | 2001-08-30 | 2004-03-23 | Indigo Energy, Inc. | Axially free flywheel system |
| US7109622B2 (en) * | 2003-06-06 | 2006-09-19 | Pentadyne Power Corporation | Flywheel system with synchronous reluctance and permanent magnet generators |
| US7750518B1 (en) * | 2006-11-29 | 2010-07-06 | Active Power, Inc. | Transient energy systems and methods for use of the same |
| CN101924417A (en) * | 2009-12-22 | 2010-12-22 | 苏州菲莱特能源科技有限公司 | Flywheel energy storage system with double rigid shafts |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109936250A (en) * | 2019-04-11 | 2019-06-25 | 上海泰初化工技术有限公司 | A kind of flying wheel battery and its application on unmanned plane |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107222131A (en) | A kind of rotor gravity unloading type magnetic bearing compound machine | |
| CN102148592A (en) | Magnetic suspension support structure used for vertical hub-disk motor | |
| CN201947073U (en) | Radial structure outer-rotor biconvex pole motor | |
| CN102510164A (en) | Gyroscope stabilizing device and boat with same | |
| CN105840430A (en) | Small vertical shaft magnetic suspension wind driven generator | |
| CN108539914B (en) | Three-phase four-degree axial split-phase magnetic suspension flywheel motor | |
| CN107070073B (en) | Magnetic suspension flywheel battery | |
| CN102684331A (en) | Stator permanent magnet type bearingless motor | |
| CN105186740A (en) | Inertia energy storage system | |
| CN103244357B (en) | Magnetic suspension bearing disc hybrid excitation doubly salient wind generator | |
| CN102480175A (en) | Bearingless levitation rotor permanent magnet motor | |
| CN102820756A (en) | Disc type three-phase magnetic gathering type transverse magnetic field permanent magnet motor | |
| CN102570749A (en) | Magnetic levitation energy storage flywheel motor, generator, motor and wind driven generator | |
| CN113131705B (en) | Cup-shaped winding permanent magnet synchronous motor, energy storage flywheel and method | |
| CN201789394U (en) | Permanent magnet driving motor for sun tracking system | |
| CN202503401U (en) | Gyro stabilizing apparatus and ship having the same | |
| CN113131706B (en) | Disc type permanent magnet synchronous motor, energy storage flywheel and method | |
| CN108448808B (en) | Permanent magnet type magnetic suspension switched reluctance flywheel motor with sleeve pole shoe teeth axial split phase | |
| CN202405929U (en) | Side-by-side motor system, generator system and electric motor system | |
| CN202565044U (en) | Stator permanent magnet bearingless motor | |
| CN206195572U (en) | Two stators do not have bearing magnetic flow reverse motor | |
| CN202405931U (en) | Coaxial motor system, generator system and motor system | |
| CN104052219A (en) | Magnetic suspension double-stator permanent magnetic wind generator | |
| CN106411081A (en) | Double-stator bearingless magnetic flux reversal motor | |
| CN202353504U (en) | Magnetic suspension electromotor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| DD01 | Delivery of document by public notice |
Addressee: Shenzhen Peitian Motor Technology Co., Ltd. Document name: the First Notification of an Office Action |
|
| DD01 | Delivery of document by public notice |
Addressee: Shenzhen Peitian Motor Technology Co., Ltd. Document name: Notification that Application Deemed to be Withdrawn |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120404 |