CN202713053U - Flywheel battery supported and driven by split magnetic levitation switch reluctance motor - Google Patents

Flywheel battery supported and driven by split magnetic levitation switch reluctance motor Download PDF

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Publication number
CN202713053U
CN202713053U CN 201220285440 CN201220285440U CN202713053U CN 202713053 U CN202713053 U CN 202713053U CN 201220285440 CN201220285440 CN 201220285440 CN 201220285440 U CN201220285440 U CN 201220285440U CN 202713053 U CN202713053 U CN 202713053U
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China
Prior art keywords
motor
rotor
flywheel
axial
stator
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Withdrawn - After Issue
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CN 201220285440
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Chinese (zh)
Inventor
项倩雯
孙玉坤
嵇小辅
张新华
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Jiangsu University
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Jiangsu University
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Publication of CN202713053U publication Critical patent/CN202713053U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16Mechanical energy storage, e.g. flywheels or pressurised fluids

Abstract

The utility model discloses a flywheel battery supported and driven by a split magnetic levitation switch reluctance motor. The flywheel battery comprises an enclosure and a vacuum cavity. An axial permanent magnet bearing, two radial permanent magnet bearings, a motor A, a flywheel rotation shaft, a flywheel rotor, a motor B and an axial electromagnetic bearing are contained in the vacuum cavity. The flywheel rotor is fixedly sleeved at the axial center of the flywheel rotation shaft. The axial permanent magnet bearing and the axial electromagnetic bearing are arranged at the upper and lower ends of the flywheel rotation shaft respectively. The two radial permanent magnet bearings are located below the axial permanent magnet bearing and above the axial electromagnetic bearing respectively. The motor A and the motor B are arranged between the two radial permanent magnet bearings and the flywheel rotor respectively. A torque winding of the motor A and a torque winding of the motor B are connected in series. The levitation windings are independently wound. The axial electromagnetic bearing provides controllable levitation with axial degree of freedom. The levitation winding is excited to generate radial levitation force. The radial levitation force and the radial restoring force of the radial permanent magnet bearing provide controllable levitation with more than 4 radial degrees of freedom, thereby improving the energy storing efficiency.

Description

The flying wheel battery of split type magnetic suspension switched reluctance motor supporting and transmission
Technical field
The utility model relates to flying wheel battery (also claiming energy accumulation device for fly wheel) field, especially a kind of flying wheel battery that adopts split type magnetic suspension switched reluctance motor supporting and transmission.
Background technology
In numerous energy storage devices, the limitation that flying wheel battery has been broken through chemical cell realizes energy storage with physical method.When flywheel rotates with a fixed angular speed, just have certain kinetic energy, flying wheel battery converts electric energy to its kinetic energy.The outstanding advantages such as flying wheel battery is fast with its large energy storage, high power, high efficiency, long-life, the speed that discharges and recharges, cleanliness without any pollution are expected to become the energy-storage battery of tool prospect.
The operation principle of flying wheel battery is: a motor is arranged in the flying wheel battery, and this motor is with the running of motor form during charging, and the electric energy that the external world is inputted stores by the kinetic energy that motor is converted into flywheel, i.e. flying wheel battery " charging "; When the external world needs electric energy, be electric energy by generator with the kinetic transformation of flywheel, export to external loading, i.e. flying wheel battery " discharge "; When with extraneous noenergy exchange, flying wheel battery " standby ".The flying wheel battery most of the time is operated at a high speed " standby " state, so the supporting system of flying wheel battery should have the characteristics of low-loss, high reliability concurrently, usually adopts electromagnetism/permanent magnetism hybrid magnetic suspension bearing.Flying wheel battery relies on motor to realize energy converting between mechanical, and square being directly proportional of Energy Storage of Flywheel Battery capacity and motor speed, therefore flying wheel battery with electronic/generating integrated motor should have that no-load loss is little, load efficiency is high concurrently, high characteristics of reliability during high-speed cruising, usually adopt magneto, switched reluctance machines and asynchronous machine.
Because at present the permanent magnet on the permanent magnet machine rotor and the winding on the asynchronous machine rotor cause that no-load loss is large under the high speed operation of motor, reliability is low, therefore, have limited the raising of flying wheel battery critical whirling speed and the increase of stored energy capacitance.The flying wheel battery of prior art is installed in flywheel rotor, hybrid magnetic suspension bearing and motor in the rotating shaft as individuality independently respectively, the hybrid magnetic suspension bearing need provide flying wheel battery 5 controlled suspension bearings of the degree of freedom, therefore, cause that the flying wheel battery volume is large, cost is high, energy consumption is large, complex structure, limited the raising of Energy Storage of Flywheel Battery density and energy storage efficiency.Therefore, the stored energy capacitance, energy storage density and the energy storage efficiency that how to improve flying wheel battery are flywheel current battery research field problem demanding prompt solutions.
Summary of the invention
The purpose of this utility model is to provide a kind of compact conformation, efficient is high, stored energy capacitance is large, energy density the is high split type magnetic suspension switched reluctance motor supporting flying wheel battery with transmission for the problem that solves prior art.
The technical solution adopted in the utility model is: the present invention includes shell and by the airtight vacuum chamber that shell surrounds, accommodate axial permanent magnetic bearing, two radial permanent magnet bearings, split type magnetic suspension switched reluctance motor A, flywheel rotating shaft, flywheel rotor, split type magnetic suspension switched reluctance motor B and axial magnetic bearings in the vacuum chamber; The axial middle of flywheel rotating shaft is overlapped flywheel rotor admittedly, the up and down two ends of flywheel rotating shaft arrange respectively axial permanent magnetic bearing and axial magnetic bearing, two radial permanent magnet bearings lay respectively at the below of axial permanent magnetic bearing and the top of axial magnetic bearing, are respectively motor A and motor B between two radial permanent magnet bearings and the flywheel rotor; Motor A is comprised of motor A rotor, motor A stator and winding, and motor A rotor is solidly set in the flywheel rotating shaft, and motor A stator is fixedly connected with outer casing inner wall; Motor B is comprised of motor B rotor, motor B stator and winding, and motor B rotor is solidly set in the flywheel rotating shaft, and motor B stator is fixedly connected with outer casing inner wall; The x that each of motor A stator is wound with motor A torque winding and motor A on extremely is to the y of suspending windings or motor A to suspending windings; The x that each of motor B stator is wound with motor B torque winding and motor B on extremely is to the y of suspending windings or motor B to suspending windings; Described motor A torque winding and described motor B torque windings in series, the x of the x of motor A to the y of suspending windings, motor A to suspending windings, motor B all separates independent coiling to the y of suspending windings, motor B to suspending windings.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model adopts the axial permanent magnetic bearing can unload the quality of flywheel rotor more than 80%, and the axial magnetic bearing provides the controllable suspension of axial freedom; The suspending windings excitation of split type magnetic suspension switched reluctance motor produces radial suspension force, and provide flywheel rotor at four controllable suspensions on the degree of freedom radially with the restoring force of radial permanent magnet bearing, not only simplified the structure of flying wheel battery, and reduced the energy loss of supporting system, the energy loss under flying wheel battery " standby " state has particularly improved the energy storage efficiency of flying wheel battery.
2, the utility model utilization is supported and transmission integrated split type magnetic suspension switched reluctance motor, radial suspension and the power conversion of flying wheel battery are united two into one, both can realize the energy converting between mechanical of flying wheel battery after torque winding and the suspending windings excitation, also can realize the radially controllable suspension of fly wheel system, utilize the power of motor and the energy loss that capacity has not only reduced supporting system, and reduced volume and the cost of flying wheel battery, increased substantially the energy storage density of flying wheel battery.
3, the utility model magnetic suspension switched reluctance motor adopts double-salient-pole mechanism, and rotor only is magnetic conductive iron, and is firm in structure reliable, is suitable for high speed, ultrahigh speed operation, improved the stored energy capacitance of flying wheel battery.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is among Fig. 1 in the split type magnetic suspension switched reluctance motor A stator 5 and the structural representation of a phase winding in the split type magnetic suspension switched reluctance motor B stator 9;
Fig. 3 is the operation principle schematic diagram that split type magnetic suspension switched reluctance motor A produces the x radial suspension force.
Among the figure: 1. shell; 2. vacuum chamber; 3. axial permanent magnetic bearing; 4. radial permanent magnet bearing; 5. motor A stator; 6. motor A rotor; 7. flywheel rotating shaft; 8. flywheel rotor; 9. motor B stator; 10. motor B rotor; 11. axial magnetic bearing;
501. motor A stator core; 502. motor A torque winding; 503. the y of motor A is to suspending windings; 504. the x of motor A is to suspending windings;
901. motor B stator core; 902. motor B torque winding; 903. the y of motor B is to suspending windings; 904. the x of motor B is to suspending windings.
Embodiment
Referring to shown in Figure 1, the utility model comprises shell 1 and the airtight vacuum chamber 2 that is surrounded by shell 1.Axial permanent magnetic bearing 3, two radial permanent magnet bearings 4, split type magnetic suspension switched reluctance motor A, flywheel rotating shaft 7, flywheel rotor 8, split type magnetic suspension switched reluctance motor B and axial magnetic bearings 11 in vacuum chamber 2, have been held.Wherein, flywheel rotor 8 fixed covers rotate with flywheel rotating shaft 7 jointly in the position, axial middle of flywheel rotating shaft 7.Be positioned in the flywheel rotating shaft 7 of part on the flywheel rotor 8, flywheel rotating shaft 7 axially upper from down to lower motor A, radial permanent magnet bearing 4 and the axial permanent magnetic bearing 3 of fixedly mounting successively, be positioned in the flywheel rotating shaft 7 of 8 times parts of flywheel rotor, flywheel rotating shaft 7 axially on fixedly mount successively from top to bottom motor B, another radial permanent magnet bearing 4 and axial magnetic bearing 11.Like this, along flywheel rotating shaft 7 axially on, make axial permanent magnetic bearing 3 and axial magnetic bearing 11 be separately positioned on the up and down two ends of flywheel rotating shaft 7; Two radial permanent magnet bearings 4 lay respectively at the below of axial permanent magnetic bearing 3 and the top of axial magnetic bearing 11, respectively motor A and motor B between two radial permanent magnet bearings 4 and the flywheel rotor 8.Two radial permanent magnet bearings 4 are made by NdFeB material, through axially being formed by stacking, are repulsion by a plurality of axial magnetizing permanent magnetism rings between the moving magnet ring of permanent-magnetic clamp and the magnetostatic ring.
Split type magnetic suspension switched reluctance motor A is comprised of motor A rotor 6, motor A stator 5 and winding, motor A rotor 6 fixed covers are in flywheel rotating shaft 7, motor A rotor 6 is radially outer to arrange corresponding motor A stator 5, and motor A stator 5 is fixedly connected on shell 1 inwall.Split type magnetic suspension switched reluctance motor B is comprised of motor B rotor 10, motor B stator 9 and winding, motor B rotor 10 fixed covers are in flywheel rotating shaft 7, motor B rotor 10 is radially outer to arrange corresponding motor B stator 9, and motor B stator 9 is fixedly connected on shell 1 inwall.
Said motor A stator 5 is identical with motor B stator 9 structures, motor A rotor 6 is identical with motor B rotor 10 structures, motor A stator 5, motor B stator 9, motor A rotor 6, motor B rotor 10 all adopt the rotor salient-pole structure of three-phase 12/8 utmost point, and are magnetic conductive iron punching compacting and form.Motor A rotor 6 of the present utility model, motor B rotor 10, flywheel rotor 8 and flywheel rotating shaft 7 are closed as a whole.
Like this, jointly consist of the electromagnetism of flying wheel battery/permanent magnetism mixed type radial support system by motor A, motor B and upper and lower two radial permanent magnet bearings 4.When the suffered Radial Perturbation of flying wheel battery hour, provide restoring force by two radial permanent magnet bearings 4; When the suffered Radial Perturbation of flying wheel battery was large, the restoring force that the radial suspension force that is produced by motor A, motor B excitation provides with two radial permanent magnet bearings 4 was born the controllable radial suspension bearing of flying wheel battery, and motor suspension bearing energy consumption is little.
The x that the split type magnetic suspension switched reluctance motor A stator 5 that exemplifies referring to Fig. 2 and the wherein structure of a phase winding of split type magnetic suspension switched reluctance motor B stator 9, motor A stator 5 comprise motor A stator core 501, motor A torque winding 502, motor A is to the y of suspending windings 504 and motor A to suspending windings 503.The x that each of motor A stator 5 is wound with motor A torque winding 502 and motor A on extremely is to suspending windings 504 or y to suspending windings 503.Motor A torque winding 502 is concentric winding to suspending windings 504, y to suspending windings 503 with x.
The x that motor B stator 9 comprises motor B stator core 901, motor B torque winding 902, motor B is to the y of suspending windings 904 and motor B to suspending windings 903.The x that each of motor B stator 9 is wound with motor B torque winding 902 and motor B on extremely is to the y of suspending windings 904 or motor B to suspending windings 903.Motor B torque winding 902 is centralized concentric winding to suspending windings 904, y to suspending windings 903 with x.
Motor A torque winding 502 and motor B torque winding 902 be together in series consists of a cover torque winding, and excitation produces the conversion that torque or generating voltage realize the flying wheel battery energy.The x of motor A is to the y of suspending windings 504, motor A to suspending windings 503, the x of motor B all separates independent coiling to the y of suspending windings 904, motor B to suspending windings 903, produce the radially controllable suspension power of four degrees of freedom with a cover torque winding magnetic field interaction after the excitation respectively, realize the radially controlled suspension bearing of flying wheel battery.
As shown in Figure 3, motor A torque winding 502 is formed by four utmost point windings in series, and its excitation can produce symmetrical quadripolar magnetic field, and direction is shown in solid line among Fig. 3; The x of motor A forms for radially relative the two poles of the earth windings in series to suspending windings 504, and its excitation can produce symmetrical dipolar magnetic field, and direction as shown in phantom in Figure 3; Symmetrical quadripolar magnetic field is through the modulation of symmetrical dipolar magnetic field, produce x to radial suspension force.Y is identical therewith to the principle of the radial suspension force of suspending windings and split type magnetic suspension switched reluctance motor B generation.

Claims (4)

1. the flying wheel battery of a split type magnetic suspension switched reluctance motor supporting and transmission, comprise that shell (1) reaches the airtight vacuum chamber (2) that is surrounded by shell (1), is characterized in that: accommodate axial permanent magnetic bearing (3), two radial permanent magnet bearings (4), split type magnetic suspension switched reluctance motor A, flywheel rotating shaft (7), flywheel rotor (8), split type magnetic suspension switched reluctance motor B and axial magnetic bearing (11) in the vacuum chamber (2); The axial middle of flywheel rotating shaft (7) is overlapped flywheel rotor (8) admittedly, the up and down two ends of flywheel rotating shaft (7) arrange respectively axial permanent magnetic bearing (3) and axial magnetic bearing (11), two radial permanent magnet bearings (4) lay respectively at the below of axial permanent magnetic bearing (3) and the top of axial magnetic bearing (11), are respectively motor A and motor B between two radial permanent magnet bearings (4) and the flywheel rotor (8); Motor A is comprised of motor A rotor (6), motor A stator (5) and winding, and motor A rotor (6) is solidly set in the flywheel rotating shaft (7), and motor A stator (5) is fixedly connected with shell (1) inwall; Motor B is comprised of motor B rotor (10), motor B stator (9) and winding, and motor B rotor (10) is solidly set in the flywheel rotating shaft (7), and motor B stator (9) is fixedly connected with shell (1) inwall; The x that each of motor A stator (5) is wound with motor A torque winding (502) and motor A on extremely is to the y of suspending windings (504) or motor A to suspending windings (503); The x that each of motor B stator (9) is wound with motor B torque winding (902) and motor B on extremely is to the y of suspending windings (904) or motor B to suspending windings (903); Described motor A torque winding (502) is connected with described motor B torque winding (902), and the x of the x of motor A to the y of suspending windings (504), motor A to suspending windings (503), motor B all separates independent coiling to the y of suspending windings (904), motor B to suspending windings (903).
2. the flying wheel battery of split type magnetic suspension switched reluctance motor supporting according to claim 1 and transmission, it is characterized in that: motor A stator (5) is identical with motor B stator (9) structure, and motor A rotor (6) is identical with motor B rotor (10) structure.
3. the flying wheel battery of split type magnetic suspension switched reluctance motor supporting according to claim 1 and transmission, it is characterized in that: motor A stator (5), motor B stator (9), motor A rotor (6), motor B rotor (10) all are rotor salient-pole structures of three-phase 12/8 utmost point.
4. the flying wheel battery of split type magnetic suspension switched reluctance motor supporting according to claim 1 and transmission is characterized in that: motor A rotor (6), motor B rotor (10), flywheel rotor (8) and the as a whole structure of flywheel rotating shaft (7).
CN 201220285440 2012-06-18 2012-06-18 Flywheel battery supported and driven by split magnetic levitation switch reluctance motor Withdrawn - After Issue CN202713053U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220285440 CN202713053U (en) 2012-06-18 2012-06-18 Flywheel battery supported and driven by split magnetic levitation switch reluctance motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220285440 CN202713053U (en) 2012-06-18 2012-06-18 Flywheel battery supported and driven by split magnetic levitation switch reluctance motor

Publications (1)

Publication Number Publication Date
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102723804A (en) * 2012-06-18 2012-10-10 江苏大学 Flywheel battery supported and driven by split magnetic levitation switch reluctance motor
WO2015039548A1 (en) * 2013-09-18 2015-03-26 黄捷 Apparatus utilizing manpower to replenish flywheel battery energy and method of use
CN105186740A (en) * 2015-10-09 2015-12-23 清华大学 Inertia energy storage system
CN106655605A (en) * 2016-12-29 2017-05-10 江苏大学 Magnetic suspension flywheel battery for sandwich-type electric car and work method thereof
CN106849565A (en) * 2016-11-25 2017-06-13 南京邮电大学 A kind of hybrid magnetic bearing double winding switched reluctance machines and control method
CN110120720A (en) * 2018-02-06 2019-08-13 翁寿成 Energy-saving and power generation device
CN112303121A (en) * 2020-10-27 2021-02-02 浙江大学 Magnetic suspension pump with three-degree-of-freedom magnetic bearing
WO2021114488A1 (en) * 2019-12-12 2021-06-17 南京磁谷科技股份有限公司 Permanent magnetic bearing
CN113258713A (en) * 2021-06-15 2021-08-13 沈阳微控新能源技术有限公司 Flywheel energy storage system

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102723804A (en) * 2012-06-18 2012-10-10 江苏大学 Flywheel battery supported and driven by split magnetic levitation switch reluctance motor
CN102723804B (en) * 2012-06-18 2014-04-09 江苏大学 Flywheel battery supported and driven by split magnetic levitation switch reluctance motor
WO2015039548A1 (en) * 2013-09-18 2015-03-26 黄捷 Apparatus utilizing manpower to replenish flywheel battery energy and method of use
CN105378276A (en) * 2013-09-18 2016-03-02 黄捷 Apparatus utilizing manpower to replenish flywheel battery energy and method of use
CN105186740A (en) * 2015-10-09 2015-12-23 清华大学 Inertia energy storage system
CN105186740B (en) * 2015-10-09 2018-01-23 清华大学 A kind of inertia energy storage system
CN106849565A (en) * 2016-11-25 2017-06-13 南京邮电大学 A kind of hybrid magnetic bearing double winding switched reluctance machines and control method
CN106849565B (en) * 2016-11-25 2019-01-01 南京邮电大学 A kind of hybrid magnetic bearing double winding switched reluctance machines and control method
CN106655605A (en) * 2016-12-29 2017-05-10 江苏大学 Magnetic suspension flywheel battery for sandwich-type electric car and work method thereof
CN110120720A (en) * 2018-02-06 2019-08-13 翁寿成 Energy-saving and power generation device
WO2021114488A1 (en) * 2019-12-12 2021-06-17 南京磁谷科技股份有限公司 Permanent magnetic bearing
CN112303121A (en) * 2020-10-27 2021-02-02 浙江大学 Magnetic suspension pump with three-degree-of-freedom magnetic bearing
CN112303121B (en) * 2020-10-27 2021-09-28 浙江大学 Magnetic suspension pump with three-degree-of-freedom magnetic bearing
CN113258713A (en) * 2021-06-15 2021-08-13 沈阳微控新能源技术有限公司 Flywheel energy storage system
CN113258713B (en) * 2021-06-15 2021-10-15 沈阳微控新能源技术有限公司 Flywheel energy storage system

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20130130

Effective date of abandoning: 20140409

RGAV Abandon patent right to avoid regrant