CN201352737Y - High-temperature superconducting flywheel energy storage device - Google Patents
High-temperature superconducting flywheel energy storage device Download PDFInfo
- Publication number
- CN201352737Y CN201352737Y CNU2009201053284U CN200920105328U CN201352737Y CN 201352737 Y CN201352737 Y CN 201352737Y CN U2009201053284 U CNU2009201053284 U CN U2009201053284U CN 200920105328 U CN200920105328 U CN 200920105328U CN 201352737 Y CN201352737 Y CN 201352737Y
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- CN
- China
- Prior art keywords
- flywheel
- temperature superconducting
- magnetic levitation
- rotor
- levitation bearing
- 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.)
- Expired - Lifetime
Links
- 238000004146 energy storage Methods 0.000 title abstract description 13
- 238000005339 levitation Methods 0.000 claims description 31
- 239000002887 superconductor Substances 0.000 claims description 11
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 238000002360 preparation method Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 229910021521 yttrium barium copper oxide Inorganic materials 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 239000000725 suspension Substances 0.000 abstract description 3
- 238000005461 lubrication Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 11
- 238000009825 accumulation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C32/00—Bearings not otherwise provided for
- F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
- F16C32/0406—Magnetic bearings
- F16C32/0408—Passive magnetic bearings
- F16C32/0436—Passive magnetic bearings with a conductor on one part movable with respect to a magnetic field, e.g. a body of copper on one part and a permanent magnet on the other part
- F16C32/0438—Passive magnetic bearings with a conductor on one part movable with respect to a magnetic field, e.g. a body of copper on one part and a permanent magnet on the other part with a superconducting body, e.g. a body made of high temperature superconducting material such as YBaCuO
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2361/00—Apparatus or articles in engineering in general
- F16C2361/55—Flywheel systems
Abstract
The utility model relates to a high-temperature superconducting flywheel energy storage device, comprising a flywheel, a motor and a power electronic device, as well as a high-temperature superconducting magnetic suspension bearing, a stator part thereof is fixed on a framework of the flywheel energy storage device, and a rotor part thereof is fixed on a rotatable flywheel shaft of the flywheel. Therefore, the high-temperature superconducting flywheel energy storage device can ensure the high-efficient storage of power energy for a long time through the characteristics of high rotational speed, no wear and no need of lubrication of the high-temperature superconducting magnetic suspension bearing.
Description
Technical field
The present invention relates to flywheel accumulator, relate in particular to a kind of high-temperature superconducting flywheel accumulator that utilizes the high temperature superconducting materia preparation.
Background technology
Energy problem is that development national economy at first needs the problem that solves, also is the problem that production and construction all departments pay special attention to, and has great strategy and economic implications.Particularly energy crisis aggravation in recent years, scientist predicts the year two thousand fifty, and tellurian petroleum resources will be exhausted.When seeking new forms of energy, people are also exploring the energy conservation technology that is having now on the basis, i.e. the High-efficient Production of the energy, storage and use rationally.With regard to the energy stored, it was very outstanding to have seemed in a lot of fields, especially high-quality, high density and energy-storage system that can abrupt release, and a lot of fields press for.
The flywheel energy storage technology is a kind of emerging power storage technology, and it is the same with superconducting energy storage technology, fuel cell technology etc., all is the energy storage technology that has great prospects for development that occurs in recent years.Though the chemical cell energy storage technology has developed very ripely at present,, the chemical cell energy storage technology exists such as the restriction that discharges and recharges number of times, to the seriously polluted of environment and to problems such as working temperature requirement height.Emerging energy storage technology more and more is subject to people's attention.Especially the flywheel energy storage technology has begun to be applied to more and more widely in many industries both domestic and external.
Conventional energy accumulation device for fly wheel mainly comprises 3 cores: flywheel, motor and power electronic equipment.Its basic functional principle is, the electric energy of external world's input is converted into the kinetic energy that flywheel rotates by motor stores, and when the external world needs electric energy, by generator the kinetic energy of flywheel is converted into electric energy again, outputs to external loading.For can be for a long time storage of electrical energy efficiently, the loss when requiring energy accumulation device for fly wheel to turn round in the free time is very little.The rotation that conventional energy accumulation device for fly wheel adopts mechanical bearing to come support flying wheel is because the coefficient of friction of mechanical bearing generally about 0.001, under the long duration of runs, still can cause no small energy loss.Therefore the energy loss that how to reduce flywheel is one of key issue that solves the long-time energy storage of energy accumulation device for fly wheel.
Summary of the invention
The objective of the invention is in order to solve the energy loss problem that mechanical bearing causes in the prior art, and provide a kind of high-temperature superconducting flywheel accumulator, utilize the high rotating speed of hts magnetic levitation bearing, do not have wearing and tearing, non-lubricating characteristics, guaranteed energy accumulation device for fly wheel can be for a long time storage power efficiently.
For achieving the above object, the invention provides a kind of high-temperature superconducting flywheel accumulator and comprise flywheel, motor and power electronic equipment, also comprise hts magnetic levitation bearing, its stationary part is fixed on the framework of described high-temperature superconducting flywheel accumulator, and its rotor portion is fixed on the rotatable flywheel shaft of described flywheel.
Further, described hts magnetic levitation bearing comprises and puts hts magnetic levitation bearing and underlying hts magnetic levitation bearing.
Further, described hts magnetic levitation bearing adopts the preparation of YBCO high temperature superconducting materia.
Further, the outer periphery of the described stationary part of described hts magnetic levitation bearing is equipped with the sub-cooled groove that is full of liquid nitrogen, is used for cooling off the YBCO high-temperature superconductor.
Further, the described stationary part of described hts magnetic levitation bearing adopts the high-temperature superconductor preparation.
Further, the described rotor portion of described hts magnetic levitation bearing adopts the permanent magnet preparation.
Further, the flywheel rotor of described flywheel is fixed on the rotatable flywheel shaft.
Further, the material of described flywheel rotor is low-density, high-intensity carbon fibre material.
Further, the stator of described motor is fixed on the framework of described high-temperature superconducting flywheel accumulator, and the rotor of described motor is fixed on the rotatable described flywheel shaft.
Further, when the input electric energy, the stator of described motor and rotor are as motor; When the output electric energy, the stator of described motor and rotor are as generator.
Further, also be included in the bottom of described high-temperature superconducting flywheel accumulator, be provided with positioner, be used to regulate the hoverheight of described flywheel shaft over against the axle head of described flywheel shaft.
Further, the cavity of described high-temperature superconducting flywheel accumulator formation is a vacuum state.
Therefore, the present invention can guarantee that by the high rotating speed of hts magnetic levitation bearing, nothing wearing and tearing, non-lubricating characteristics energy loss is very little.
Description of drawings
Fig. 1 is the workflow schematic diagram of high-temperature superconducting flywheel accumulator of the present invention.
Fig. 2 is the structural representation of high-temperature superconducting flywheel accumulator of the present invention.
Embodiment
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
As Fig. 1, shown the whole workflow of high-temperature superconducting flywheel accumulator.Energy input 1 can be that electrical network or other have the remaining equipment of electric energy.Energy input 1 inserts electric energy input power electronic equipment 2 in the mode of electric energy, and electric energy is used for drive motor 3 after being rectified into voltage, electric current and the frequency of standard.Motor 3 connects flywheel 4 thereafter for carrying out electric energy in the whole workflow to the equipment that mechanical energy transforms.Flywheel 4 is in the mode of mechanical energy, high density, free of contamination stored energy.When the occasion that needs energy output, generator 5 is obtained mechanical energy from flywheel 4, and is converted into electric energy, outputs in the electric energy output power electronic installation 2.Electric energy output power electronic installation 2 is with the type energize output 6 of electric energy rectification for needing of output.The stator of motor is fixed on the framework of high-temperature superconducting flywheel accumulator in the present invention, and the rotor of described motor is fixed on the rotatable described flywheel shaft.When the input electric energy, the stator of described motor and rotor are as motor; When the output electric energy, the stator of described motor and rotor are as generator.The high-temperature superconducting flywheel accumulator that the present invention proposes and the difference of conventional energy accumulation device for fly wheel are: use hts magnetic levitation bearing to replace whole mechanical bearings; In high-temperature superconducting flywheel accumulator, be provided with the cooling bath that is specifically designed to the cooling high-temperature superconducting body; On the overall structure of high-temperature superconducting flywheel accumulator, adjust, to adapt to above-mentioned change.
As Fig. 2, shown the structural representation of high-temperature superconducting flywheel accumulator.Whole accumulator is symmetrical structure around center line 8.Center line 8 also is the center line of flywheel shaft 9.Flywheel rotor 10 is fixed on the rotatable flywheel shaft 9, and its material is generally low-density, high-intensity carbon fibre material.Hts magnetic levitation bearing of the present invention comprises puts hts magnetic levitation bearing 11 and underlying hts magnetic levitation bearing 12.The present invention adopts the hts magnetic levitation bearing 11 and 12 of YBCO high temperature superconducting materia preparation.Hts magnetic levitation bearing 11 and 12 stationary part are high-temperature superconductor, be fixed on the framework of high-temperature superconducting flywheel accumulator, the periphery of stationary part is the sub-cooled groove 13 that is full of liquid nitrogen, is used for cooling off the YBCO high-temperature superconductor, to make it to enter superconducting state.Hts magnetic levitation bearing 11 and 12 rotor portion 14 are permanent magnet, are fixed on the rotatable flywheel shaft 9.Under the condition of work, on put the weight that hts magnetic levitation bearing 11 and underlying hts magnetic levitation bearing 12 are born flywheel shaft 9 and flywheel rotor 10 jointly, and flywheel shaft 9 carried out radial location, make whole flywheel be in the suspended state that has only a rotary freedom.
In the present invention, the motor and the generator that are used to carry out Conversion of energy are integral structure, and the stator 15 of motor is fixed on the framework of high-temperature superconducting flywheel accumulator, and the rotor 16 of motor is fixed on the rotatable flywheel shaft 9.When the input electric energy, stator 15 and rotor 16 are as motor; When the output electric energy, stator 15 and rotor 16 can be simplified the overall structure of high-temperature superconducting flywheel accumulator like this as generator.Be in high-temperature superconducting flywheel accumulator bottom, play the effect of regulating flywheel shaft 9 hoverheights over against the positioner 17 of the axle head of flywheel shaft 9.Fill the insulation heat-barrier material in the idle volume 18 of high-temperature superconducting flywheel accumulator, reduce the inflow of external heat on the one hand, reduced the volume of cavity 19 on the other hand.With cavity 19 state that is evacuated, play heat-blocking action on the one hand, reduced the resistance of air on the other hand to the flywheel rotation.
In the present invention, the operation principle of hts magnetic levitation bearing is the Meisser effect and the flux pinning effect of superconductor.Hts magnetic levitation bearing mainly is made of permanent magnet and high-temperature superconductor two large divisions, and the present invention considers the cost and the operational environment of high-temperature superconductor, uses high-temperature superconductor to serve as bearing stator, and permanent magnet serves as bearing rotor.High-temperature superconductor need carry out work under liquid nitrogen temperature, its distinctive flux pinning force makes the suspension that permanent magnet rotor can be stable.Hts magnetic levitation bearing is a core of the present invention, has guaranteed flywheel rotor high speed stable rotation in the support flying wheel rotor, and its coefficient of friction can reach 10
-7Thereby can realize the high rotating speed of hts magnetic levitation bearing, do not have wearing and tearing, need not to lubricate the energy loss minimum.
It should be noted last that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not break away from the spirit and scope of technical solution of the present invention.
Claims (12)
1, a kind of high-temperature superconducting flywheel accumulator, comprise flywheel, motor and power electronic equipment, it is characterized in that also comprising hts magnetic levitation bearing, its stationary part is fixed on the framework of described high-temperature superconducting flywheel accumulator, and its rotor portion is fixed on the rotatable flywheel shaft of described flywheel.
2, high-temperature superconducting flywheel accumulator according to claim 1 is characterized in that described hts magnetic levitation bearing comprises to put hts magnetic levitation bearing and underlying hts magnetic levitation bearing.
3, high-temperature superconducting flywheel accumulator according to claim 2 is characterized in that described hts magnetic levitation bearing adopts the preparation of YBCO high temperature superconducting materia.
4, high-temperature superconducting flywheel accumulator according to claim 3 is characterized in that the outer periphery of the described stationary part of described hts magnetic levitation bearing is equipped with the sub-cooled groove that is full of liquid nitrogen, is used for cooling off the YBCO high-temperature superconductor.
5,, it is characterized in that the described stationary part of described hts magnetic levitation bearing adopts the high-temperature superconductor preparation according to the described high-temperature superconducting flywheel accumulator of claim 1-4.
6, high-temperature superconducting flywheel accumulator according to claim 5 is characterized in that the described rotor portion of described hts magnetic levitation bearing adopts the permanent magnet preparation.
7, high-temperature superconducting flywheel accumulator according to claim 1 is characterized in that the flywheel rotor of described flywheel is fixed on the rotatable flywheel shaft.
8, high-temperature superconducting flywheel accumulator according to claim 7, the material that it is characterized in that described flywheel rotor are low-density, high-intensity carbon fibre material.
9, high-temperature superconducting flywheel accumulator according to claim 1 is characterized in that the stator of described motor is fixed on the framework of described high-temperature superconducting flywheel accumulator, and the rotor of described motor is fixed on the rotatable described flywheel shaft.
10, high-temperature superconducting flywheel accumulator according to claim 9 is characterized in that the stator of described motor and rotor are as motor when the input electric energy; When the output electric energy, the stator of described motor and rotor are as generator.
11, high-temperature superconducting flywheel accumulator according to claim 1 is characterized in that also being included in the bottom of described high-temperature superconducting flywheel accumulator, is provided with positioner over against the axle head of described flywheel shaft, is used to regulate the hoverheight of described flywheel shaft.
12, high-temperature superconducting flywheel accumulator according to claim 1 is characterized in that the cavity that described high-temperature superconducting flywheel accumulator forms is a vacuum state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201053284U CN201352737Y (en) | 2009-01-22 | 2009-01-22 | High-temperature superconducting flywheel energy storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201053284U CN201352737Y (en) | 2009-01-22 | 2009-01-22 | High-temperature superconducting flywheel energy storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201352737Y true CN201352737Y (en) | 2009-11-25 |
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ID=41376122
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2009201053284U Expired - Lifetime CN201352737Y (en) | 2009-01-22 | 2009-01-22 | High-temperature superconducting flywheel energy storage device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201352737Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594008A (en) * | 2012-03-06 | 2012-07-18 | 中国科学院长春光学精密机械与物理研究所 | Energy storage device of vacuum super-conducting magnetic suspension integrated flywheel |
| CN103368323A (en) * | 2012-04-03 | 2013-10-23 | 波音公司 | Open-core flywheel construction |
| CN103904816A (en) * | 2014-03-25 | 2014-07-02 | 南方科技大学 | Flywheel energy storage device, wind power generating system and vehicle energy feedback brake system |
| CN111917338A (en) * | 2020-08-11 | 2020-11-10 | 浙江超鼎机电有限公司 | High-temperature superconducting hybrid magnetic suspension permanent magnet variable frequency motor |
-
2009
- 2009-01-22 CN CNU2009201053284U patent/CN201352737Y/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102594008A (en) * | 2012-03-06 | 2012-07-18 | 中国科学院长春光学精密机械与物理研究所 | Energy storage device of vacuum super-conducting magnetic suspension integrated flywheel |
| CN103368323A (en) * | 2012-04-03 | 2013-10-23 | 波音公司 | Open-core flywheel construction |
| US9729025B2 (en) | 2012-04-03 | 2017-08-08 | The Boeing Company | Open-core flywheel architecture |
| US10826348B2 (en) | 2012-04-03 | 2020-11-03 | The Boeing Company | Open-core flywheel architecture |
| US11070107B2 (en) | 2012-04-03 | 2021-07-20 | The Boeing Company | Open-core flywheel architecture |
| CN103904816A (en) * | 2014-03-25 | 2014-07-02 | 南方科技大学 | Flywheel energy storage device, wind power generating system and vehicle energy feedback brake system |
| CN103904816B (en) * | 2014-03-25 | 2016-08-24 | 南方科技大学 | Energy accumulation device for fly wheel, wind generator system and vehicle energy regenerative braking system |
| CN111917338A (en) * | 2020-08-11 | 2020-11-10 | 浙江超鼎机电有限公司 | High-temperature superconducting hybrid magnetic suspension permanent magnet variable frequency motor |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING AEROSPACE CENTURY SUPERCONDUCTING TECHNOLO Free format text: FORMER NAME: BEIJING AEROSPACE CENTURY SUPERCONDUCTING STORAGE EQUIPMENT TECHNOLOGY CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: 101500 No. 19, Canbo Road, Miyun Economic Development Zone, Beijing, Miyun Patentee after: Beijing Aerospace Century Superconducting Technology Co., Ltd. Address before: 101500 No. 19, Canbo Road, Miyun Economic Development Zone, Beijing, Miyun Patentee before: Beijing Yuhang Shiji Superconducting Energy Storage Equipment Technology Co., Lt |
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Denomination of utility model: High-temperature superconducting flywheel accumulator Effective date of registration: 20150824 Granted publication date: 20091125 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: Beijing Aerospace Century Superconducting Technology Co., Ltd. Registration number: 2015990000708 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20161202 Granted publication date: 20091125 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: Beijing Aerospace Century Superconducting Technology Co., Ltd. Registration number: 2015990000708 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High-temperature superconducting flywheel accumulator Effective date of registration: 20161220 Granted publication date: 20091125 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: Beijing Aerospace Century Superconducting Technology Co., Ltd. Registration number: 2016990001135 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180119 Granted publication date: 20091125 Pledgee: Haidian Beijing science and technology enterprise financing Company limited by guarantee Pledgor: Beijing Aerospace Century Superconducting Technology Co., Ltd. Registration number: 2016990001135 |
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