CN103001391A - Flywheel energy storage system - Google Patents
Flywheel energy storage system Download PDFInfo
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- CN103001391A CN103001391A CN2012103941262A CN201210394126A CN103001391A CN 103001391 A CN103001391 A CN 103001391A CN 2012103941262 A CN2012103941262 A CN 2012103941262A CN 201210394126 A CN201210394126 A CN 201210394126A CN 103001391 A CN103001391 A CN 103001391A
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- flywheel
- energy storage
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- flywheel energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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Abstract
The invention discloses a flywheel energy storage system. The flywheel energy storage system comprises a magnetic resistance motor of a disk-shaped structure, a vertically arranged shaft, a flywheel and a magnetic levitation bearing, wherein the flywheel is mounted on the magnetic resistance motor and the shaft in a matched manner and is used for storing energy, and the magnetic levitation bearing is matched with the shaft. The flywheel energy storage system can overcome the defects of large occupied size, high input cost, low system efficiency, short flywheel standby time and the like of the prior art and has the advantages of small occupied size, low input cost, high system efficiency and long flywheel standby time.
Description
Technical field
The present invention relates to the technical field of electric power storage and inversion generating, particularly, relate to a kind of flywheel energy storage system.
Background technology
At present, in the flywheel energy storage technical field, need to use motor and flywheel, the expensive rare earth permanent-magnetic material of motor needs that relates to is so that the flywheel energy storage cost improves greatly; And electromagnetic eddy loss and magnetic hysteresis loss because permanent magnetism produces have reduced system effectiveness, greatly reduce the stand-by time of flywheel.In addition, the volume that motor and flywheel take is large, has also improved cost.
In realizing process of the present invention, the inventor finds to exist at least in the prior art and takies that volume is large, input cost is high, system effectiveness is low and the defective such as the flywheel stand-by time is short.
Summary of the invention
The object of the invention is to, for the problems referred to above, proposed a kind of flywheel energy-storage system, to realize taking the advantage that volume is little, input cost is low, system effectiveness is high and the flywheel stand-by time is long.
For achieving the above object, the technical solution used in the present invention is: a kind of flywheel energy storage system comprises the reluctance motor of disk-shaped structure, the axle that vertically arranges, cooperate the flywheel be installed on described reluctance motor and the axle and be used for storage power, and the magnetic suspension bearing that is equipped with described axle.
Further, described magnetic suspension bearing adopts the synergetic structure of permanent magnet suspension and electromagnetic suspension.
Further, described reluctance motor comprises the rotor that is equipped with described axle, is arranged on the stator of described rotor exterior, and cooperates the leggy coil that is wound on the described stator; Described flywheel is superimposed upon on the rotor.
Further, described rotor is disk type rotor, and when not needing to strengthen inertia, disk type rotor is as flywheel; When needs strengthen inertia, at the flywheel of disk type rotor stack predetermined number.
The flywheel energy storage system of various embodiments of the present invention, owing to comprise the reluctance motor of disk-shaped structure, the axle that vertically arranges cooperates the flywheel that is installed on reluctance motor and the axle and is used for storage power, and the magnetic suspension bearing that is equipped with axle; Reluctance motor that needn't permanent magnetic material is transformed into disk-shaped structure, can run up and the high-speed excitation generating, and successful Application is on flywheel energy storage system; Take the defective that volume is large, input cost is high, system effectiveness is low and the flywheel stand-by time is short in the prior art thereby can overcome, to realize taking the advantage that volume is little, input cost is low, system effectiveness is high and the flywheel stand-by time is long.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Accompanying drawing is used to provide a further understanding of the present invention, and consists of the part of specification, is used for together with embodiments of the present invention explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural representation of flywheel energy storage system of the present invention.
By reference to the accompanying drawings, Reference numeral is as follows in the embodiment of the invention:
The 1-stator; The 2-coil; The 3-rotor; The 4-flywheel; The 5-axle.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, is not intended to limit the present invention.
According to the embodiment of the invention, a kind of flywheel energy storage system is provided, namely High speed SRM drives the high-revolving flywheel energy storage-electricity generation system of large inertia.As shown in Figure 1, present embodiment comprises the reluctance motor (being High speed SRM) of disk-shaped structure, cooperate on the axle be installed in vertical setting and be used for the flywheel (such as flywheel 4) of storage power, and the magnetic suspension bearing that is equipped with the axle (such as axle 5) of flywheel.Axle is installed on the magnetic suspension bearing, and it adopts a kind of permanent magnet suspension and the collaborative special construction pattern of electromagnetic suspension.
Above-mentioned reluctance motor comprises the rotor (such as rotor 3) that is equipped with axle, is arranged on the stator (such as stator 1) of rotor exterior, and cooperates the leggy coil (such as coil 2) that is wound on the stator; Flywheel is superimposed upon on the rotor.Rotor is disk type rotor, and when not needing to strengthen inertia, disk type rotor is as flywheel; When needs strengthen inertia, at the flywheel of disk type rotor stack predetermined number.
Particularly, the flywheel energy storage system of above-described embodiment is wound with the coil of leggy at stator, usually adopts three-phase, four phases, six mutually and eight equates; Rotor is multisegmented rotor, and the number of pole-pairs suitable with stator arranged; When system's input electric energy, rotor is transported to high-speed switching circuit in order to drive stator coil by the rotor-position signal that position transducer sends, and makes it produce powerful electromagnet pull, the rotation of pulling rotor high-speed; Rotor itself just can play the effect of inertial flywheel; If inertia is inadequate, can at the rotor flywheel that superposes, to strengthen flywheel inertia, improve power; Axle and bearing are with supporting flywheel High Rotation Speed in stator; Axle and bearing adopt permanent magnet suspension and electromagnetic suspension synergy, greatly reduce bearing resistance, improve system effectiveness, improve Speed of Reaction Wheels, prolong system's service life; When the needs system generated electricity, flywheel started high-speed switching circuit to the stator coil excitation under the holding state that runs up, and at this moment, flywheel will become generator, can send powerful electric power.
The flywheel energy storage system of above-described embodiment is a great Energy-saving Projects, is again a reusing of energy source project.Wind energy, solar energy and hydropower resources can both be fully utilized, and can be with the electric energy recycling that wastes, or with its input electrical network.Simultaneously, the embodiment of the invention also can be carried out macro adjustments and controls to the peak of electrical network-paddy electric power.
The flywheel energy storage system of above-described embodiment, belong to high-power power-with the mechanical energy of fly-wheel control rotation, mutually a kind of energy-storage system of conversion.The concrete application of this flywheel energy storage system comprises:
(1) industrial and mining enterprises, the units such as megastore can utilize high-power flywheel energy storage system, and the electrical power storage of the valency of will regretting evening was got up for daytime.
(2) army, hospital, the important places such as international conference can be with flywheel energy storage system as uninterrupted power supply.
(3) wind power generation, solar energy power generating will no longer become the rubbish electricity.Available flywheel energy storage system is conveyed into electrical network after it is integrated.
(4) subway in the whole nation is because of frequent starting, and 30% electric energy has nearly been wasted in brake.Utilize flywheel energy storage system to convert its brake energy to electrical power storage, recycle during for launch train.
(5) whole nation in, small hydropower station is vast serve for agriculture after utilizing flywheel energy storage system that electric power is stored and integrates.
The flywheel energy storage system of above-described embodiment has following characteristics: the reluctance motor that (1) needn't permanent magnetic material is transformed into disk-shaped structure, can run up and the high-speed excitation generating, and successful Application is on the motor of flywheel energy storage; (2) disk type rotor itself just possesses flywheel functions; (3) if will strengthen inertia, flywheel again need only superpose on former rotor; (4) synergetic structure of flywheel bearing employing permanent magnet suspension and electromagnetic suspension improves rotating speed to reduce rotational resistance, raises the efficiency, and life-saving reduces manufacturing cost.
The flywheel energy storage system of above-described embodiment also has following characteristics: (1) adopts the dish type switched reluctance machines, improves electronic switch speed and power, can drive the fly-wheel control High Rotation Speed; (2) utilize the quick-response excitation of switched reluctance machines, make its inversion become generator, huge flywheel inertia is transformed into electric energy output; (3) because the motor that the above embodiment of the present invention relates to does not need expensive rare earth permanent-magnetic material, not only greatly reduce cost, the more important thing is and eliminated Dian Ci Vortex stream loss and the magnetic hysteresis loss that produces because of permanent magnetism, greatly improved the stand-by time of system effectiveness and flywheel; (4) the greatly amount of being used to Disk type rotor and the flywheel of switched reluctance machines can integrate, and reduce volume, reduce cost; (5) motor bearings adopts permanent magnet suspension and the collaborative magnetic levitation technology of electromagnetic suspension, has solved the difficult problem of High Rotation Speed.
The flywheel energy storage system of above-described embodiment is a kind of large inertia, high-revolving flywheel energy storage one electricity generation system, and it belongs to high efficiency, and is high-power, long-life, cheaply power storage equipment; Also can be described as " mechanical energy storage battery ", both chargeable, can discharge again.This flywheel energy storage system is mainly used in the peak of electric power network-paddy and regulates, the modified and input electrical network of wind power generation and photovoltaic generation, in, the electric power of small hydropower station stores and is incorporated into the power networks, the recovery and reuse of subway brake energy, and the high power UPS of the important departments such as army, hospital etc.
The flywheel energy storage system of above-described embodiment, mainly by high-performance, high-revolving dish type switched reluctance machines drives fly-wheel control and comes storage power, and by excitation it is reverse into the stored electric energy of generator output.
Because the used motor of flywheel energy storage system of above-described embodiment does not adopt expensive rare earth permanent-magnetic material, not only greatly reduce cost, whole system is not produced because permanent magnetism causes De Vortex stream loss and magnetic hysteresis loss, greatly improved the efficient of system and the stand-by time of flywheel.
It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment the present invention is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (4)
1. a flywheel energy storage system is characterized in that, comprises the reluctance motor of disk-shaped structure, and the axle that vertically arranges cooperates the flywheel that is installed on described reluctance motor and the axle and is used for storage power, and the magnetic suspension bearing that is equipped with described axle.
2. a kind of flywheel energy storage system according to claim 1 is characterized in that, described magnetic suspension bearing adopts the synergetic structure of permanent magnet suspension and electromagnetic suspension.
3. a kind of flywheel energy storage system according to claim 1 and 2 is characterized in that, described reluctance motor comprises the rotor that is equipped with described axle, is arranged on the stator of described rotor exterior, and cooperates the leggy coil that is wound on the described stator; Described flywheel is superimposed upon on the rotor.
4. a kind of flywheel energy storage system according to claim 3 is characterized in that, described rotor is disk type rotor, and when not needing to strengthen inertia, disk type rotor is as flywheel; When needs strengthen inertia, at the flywheel of disk type rotor stack predetermined number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103941262A CN103001391A (en) | 2012-10-17 | 2012-10-17 | Flywheel energy storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103941262A CN103001391A (en) | 2012-10-17 | 2012-10-17 | Flywheel energy storage system |
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| CN103001391A true CN103001391A (en) | 2013-03-27 |
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| CN2012103941262A Pending CN103001391A (en) | 2012-10-17 | 2012-10-17 | Flywheel energy storage system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482754A (en) * | 2017-10-13 | 2017-12-15 | 安徽全柴集团有限公司 | Energy storage type supply station based on switched reluctance machines application |
| CN112186788A (en) * | 2020-09-30 | 2021-01-05 | 西南交通大学 | Design method of vehicle-mounted flywheel energy storage system for subway train |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10201195A (en) * | 1997-01-10 | 1998-07-31 | Nippon Electric Ind Co Ltd | Switched reluctance motor |
| CN2752099Y (en) * | 2004-08-18 | 2006-01-18 | 杨林江 | Power-storing device in flywheel for electric vehicle |
| CN101860114A (en) * | 2010-04-20 | 2010-10-13 | 天津大学 | Integrated switched reluctance machine flywheel energy storage device |
| CN102111062A (en) * | 2011-01-24 | 2011-06-29 | 廖梓良 | Magnetic suspension energy storage flywheel generator set |
| CN102684365A (en) * | 2012-05-08 | 2012-09-19 | 江苏大学 | Flywheel energy storage device adopting bearingless switched reluctance motor |
| GB2489523A (en) * | 2011-04-01 | 2012-10-03 | Oxto Ltd | Energy storage system using switched reluctance motor |
| CN102723804A (en) * | 2012-06-18 | 2012-10-10 | 江苏大学 | Flywheel battery supported and driven by split magnetic levitation switch reluctance motor |
-
2012
- 2012-10-17 CN CN2012103941262A patent/CN103001391A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10201195A (en) * | 1997-01-10 | 1998-07-31 | Nippon Electric Ind Co Ltd | Switched reluctance motor |
| CN2752099Y (en) * | 2004-08-18 | 2006-01-18 | 杨林江 | Power-storing device in flywheel for electric vehicle |
| CN101860114A (en) * | 2010-04-20 | 2010-10-13 | 天津大学 | Integrated switched reluctance machine flywheel energy storage device |
| CN102111062A (en) * | 2011-01-24 | 2011-06-29 | 廖梓良 | Magnetic suspension energy storage flywheel generator set |
| GB2489523A (en) * | 2011-04-01 | 2012-10-03 | Oxto Ltd | Energy storage system using switched reluctance motor |
| CN102684365A (en) * | 2012-05-08 | 2012-09-19 | 江苏大学 | Flywheel energy storage device adopting bearingless switched reluctance motor |
| CN102723804A (en) * | 2012-06-18 | 2012-10-10 | 江苏大学 | Flywheel battery supported and driven by split magnetic levitation switch reluctance motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482754A (en) * | 2017-10-13 | 2017-12-15 | 安徽全柴集团有限公司 | Energy storage type supply station based on switched reluctance machines application |
| CN112186788A (en) * | 2020-09-30 | 2021-01-05 | 西南交通大学 | Design method of vehicle-mounted flywheel energy storage system for subway train |
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Application publication date: 20130327 |
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