CN110246655A - A kind of HTS-SMES magnet - Google Patents
A kind of HTS-SMES magnet Download PDFInfo
- Publication number
- CN110246655A CN110246655A CN201910677073.7A CN201910677073A CN110246655A CN 110246655 A CN110246655 A CN 110246655A CN 201910677073 A CN201910677073 A CN 201910677073A CN 110246655 A CN110246655 A CN 110246655A
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- China
- Prior art keywords
- energy storage
- superconducting
- superconducting coil
- magnet
- hts
- 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.)
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Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000004146 energy storage Methods 0.000 abstract description 24
- 230000004907 flux Effects 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 230000001737 promoting effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000001052 transient effect Effects 0.000 description 4
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 229910021521 yttrium barium copper oxide Inorganic materials 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/06—Coils, e.g. winding, insulating, terminating or casing arrangements therefor
Abstract
The embodiment of the present application provides a kind of HTS-SMES magnet, by increasing an iron core inside the superconducting coil of hollow structure, to increase the inductance value of superconducting magnetic energy storage, simultaneously, iron core can reduce superconducting coil Surface field intensity, to improve the numerical value of superconducting coil transmission electric current, by increasing inductance value and promoting transmission electric current, superconducting magnetic energy storage can be significantly increased goes out energy, simultaneously due also to magnetic flux is largely constrained on core interior, so as to reduce the magnetic flux leakage in air, reduce superconducting magnetic energy storage to external electromagnetic pollution, solves energy storage magnet at work, magnetic field distribution in axially symmetric shape outside magnet is in air, the larger technical problem of leakage field.
Description
Technical field
This application involves superconducting magnet technical field more particularly to a kind of HTS-SMES magnets.
Background technique
Super conductive magnetic storage energy (superconducting magnetic energy storage system, SMES) is to utilize
Superconducting coil directly stores electromagnetic energy, again by electromagnetic energy feedback grid or other loads when needing, and to the electricity of power grid
Sunken, harmonic wave of indentation etc. is flexibly administered, or provides a kind of electric power facility of the high-power active support of transient state.Its working principle
Be: when normal operation, power network current, to superconduction induction charging, then keeps constant current operation (due to using superconducting line by rectification
Energy storage is enclosed, stored energy can almost go down in permanent storage without loss, until when needing to discharge).When power grid is sent out
When raw transient voltage falls or rises sharply, transient state is active uneven, friendship can be converted to through inverter from superconduction inductance extraction energy
Stream, and to power grid output can flexible modulation it is active or idle, to ensure that the transient voltage of power grid is stable and active balance.Root
According to Power Flow formula:
In formula, W indicates energy storage capacity, and L is inductance value, and I is current value.As can be seen that increase energy storage capacity, it on the one hand can be with
Increase inductance value, running current on the other hand can be improved.
At work, in air, leakage field is larger, becomes change for the magnetic field distribution in axially symmetric shape outside magnet for energy storage magnet
One of the main source of electromagnetic pollution in power station.Although inhibiting magnet leakage field that can incite somebody to action using the method for magnetic screen or electromagnetic shielding
Space electromagnetic pollution is suppressed to acceptable level, but various screen methods will lead to the increase of magnet running wastage, and draw
Play the variation of inductance parameters.
Summary of the invention
The embodiment of the present application provides a kind of HTS-SMES magnet, reduces superconducting magnetic energy storage to external electromagnetism
Pollution, solves energy storage magnet at work, and the magnetic field outside magnet is in axially symmetric shape to be distributed in air, the biggish skill of leakage field
Art problem.
In view of this, this application provides a kind of HTS-SMES magnets, comprising:
Superconducting coil, low-temperature (low temperature) vessel and iron core；
After the superconducting coil is socketed on the iron core outside, it is wholy set in the low temperature cavity of the low-temperature (low temperature) vessel.
Optionally, the superconducting coil includes superconduction wire turn and skeleton；
The skeleton is ring structure；
The superconduction wire turn around on the skeleton and be bonded be integrated.
Optionally, the skeleton is specially circular configuration.
Optionally, the skeleton is specially D-shape configuration.
Optionally, there is liquid nitrogen in the low temperature cavity of the low-temperature (low temperature) vessel.
As can be seen from the above technical solutions, the embodiment of the present application has the advantage that
In the embodiment of the present application, a kind of HTS-SMES magnet is provided, by the superconducting coil of hollow structure
Portion increases an iron core, thus increase the inductance value of superconducting magnetic energy storage, meanwhile, iron core can reduce superconducting coil Surface field
Intensity, by increasing inductance value and promoting transmission electric current, can substantially increase to improve the numerical value of superconducting coil transmission electric current
Add superconducting magnetic energy storage goes out energy, while due also to magnetic flux is largely constrained on core interior, so as to reduce air
In magnetic flux leakage, reduce superconducting magnetic energy storage to external electromagnetic pollution, solve energy storage magnet at work, outside magnet
Magnetic field it is in axially symmetric shape distribution in air, the larger technical problem of leakage field.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of HTS-SMES magnet in the embodiment of the present application；
Wherein, appended drawing reference are as follows:
1, superconducting coil；2, low-temperature (low temperature) vessel；3, iron core.
Specific embodiment
In order to make those skilled in the art more fully understand application scheme, below in conjunction in the embodiment of the present application
Attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is only this
Apply for a part of the embodiment, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art exist
Every other embodiment obtained under the premise of creative work is not made, shall fall in the protection scope of this application.
The application devises a kind of HTS-SMES magnet, reduces electromagnetic pollution of the superconducting magnetic energy storage to outside,
Solves energy storage magnet at work, the distribution in axially symmetric shape of the magnetic field outside magnet in air, ask by the biggish technology of leakage field
Topic.
In order to make it easy to understand, referring to Fig. 1, Fig. 1 is a kind of structure of HTS-SMES magnet in the embodiment of the present application
Schematic diagram, as shown in Figure 1, specifically:
Superconducting coil 1, low-temperature (low temperature) vessel 2 and iron core 3；
After the superconducting coil 1 is socketed on 3 outside of iron core, it is wholy set in the low temperature cavity of the low-temperature (low temperature) vessel 2
In.
Further, the superconducting coil 1 includes superconduction wire turn and skeleton；
The skeleton is ring structure；
The superconduction wire turn around on the skeleton and be bonded be integrated.
Further, the skeleton is specially circular configuration.
Further, the skeleton is specially D-shape configuration.
Further, there is liquid nitrogen in the low temperature cavity of the low-temperature (low temperature) vessel 2.
It should be noted that the superconducting coil 1 in the embodiment of the present application includes superconduction wire turn and skeleton.
Superconduction wire turn is made of high temperature superconducting materia, mainly includes bismuth system superconducting tape and yttrium system superconducting tape.Due to
The length of single superconducting tape and the ability of transmission electric current are limited, therefore generally by the way of more superconducting tape series and parallels
Constitute superconduction wire turn.
Skeleton is to provide the basis of positioning and fixation for superconduction wire turn, in order to avoid during superconducting coil flux change
Vortex is generated in skeleton, skeleton is generally made of nonmetallic materials, and main material is glass reinforced plastic.The base shape of skeleton is
Ring structure can specifically select the multiple structural forms such as circular configuration and D-shape configuration according to actual needs.
Superconduction wire turn is gradually wound on skeleton according to series-parallel system, final superconduction wire turn and skeleton fit into one
Body forms the superconducting coil 1 in the embodiment of the present application.
In the embodiment of the present application, superconduction wire turn is made of YBCO superconductor, which is 4.8mm wide strip,
Maximum transmitted electric current under the conditions of 77K liquid nitrogen is 90A；Superconduction wire turn is made of 2 YBCO superconducting tape parallel connections, constitutes D type
Structure；Skeleton is made of glass-reinforced plastic material, is D-shape configuration.Superconducting coil 1 in the embodiment of the present application is by 16 D type coils
Hollow structure in series, inductance value 9mH.
Low-temperature (low temperature) vessel 2 in the embodiment of the present application is to provide the container of cold operation environment for superconducting coil 1 comprising low
Warm cavity.Low-temperature (low temperature) vessel 2 is generally made of metal material, and is contained with liquid nitrogen in its low temperature cavity.
In the embodiment of the present application, low-temperature (low temperature) vessel 2 uses 304 stainless steel makings, is cirque structure, exhausted using high vacuum
Heat, low temperature inside cavity hold liquid nitrogen, and it is highly 1000mm that the internal diameter of low temperature cavity, which is 1000mm, outer diameter 1200mm,.It is super
1 coaxial placement of loop is in the low temperature cavity body of low-temperature (low temperature) vessel 2.
Iron core 3 in the embodiment of the present application is mainly that the main magnetic flux for generating superconducting coil 1 is assembled, to reduce superconduction
The leakage magnetic flux of coil 1.The size of iron core 3 need to be cooperated with design inductance value and 1 structure size of superconducting coil etc..If giving
Determine energy storage capacity W and running current I, then inductance value L=2W/I2 can be obtained according to above-mentioned formula.According to the inductance value, can use has
Xian Yuan simulation software calculates the size of superconducting coil 1 and iron core 3, basic calculation process are as follows: establishes in analysis software
Then the geometrical model of superconducting coil 1 and iron core 3 calculates the corresponding inductance value of the model by software, if inductance value and desirable value
There are deviations, then modify the calculating that iterates after above-mentioned geometrical model, until inductance value meets design requirement.Iron core 3 is generally adopted
It is made of silicon steel sheet, silicon steel sheet is cut into after respective shapes according to geometric dimension and is superimposed on one, and binding and fixing.It is super
After loop 1 is socketed on 3 outside of iron core, it is wholy set in the low temperature cavity of low-temperature (low temperature) vessel 2.
In the embodiment of the present application, iron core 3 is D type structure, is manufactured using the silicon steel sheet of the B30P105 trade mark, iron core 3 is coaxially set
It is placed in the inside of superconducting coil 1, it is then whole again to be placed in the low temperature cavity of low-temperature (low temperature) vessel 2.After increasing the iron core 3, high temperature
The inductance value of superconducting magnetic energy storage increases to 38mH by the 9mH of hollow superconducting coil 1, remain operational electric current it is constant in the case where
It is original 4.2 times that energy storage capacity, which can increase,.And at the same time, since iron core 3 can greatly reduce the leakage field of superconducting coil 1
, to significantly reduce the electromagnetic pollution of HTS-SMES magnet.
In the embodiment of the present application, a kind of HTS-SMES magnet is provided, by the superconducting coil of hollow structure
Portion increases an iron core, thus increase the inductance value of superconducting magnetic energy storage, meanwhile, iron core can reduce superconducting coil Surface field
Intensity, by increasing inductance value and promoting transmission electric current, can substantially increase to improve the numerical value of superconducting coil transmission electric current
Add superconducting magnetic energy storage goes out energy, while due also to magnetic flux is largely constrained on core interior, so as to reduce air
In magnetic flux leakage, reduce superconducting magnetic energy storage to external electromagnetic pollution, solve energy storage magnet at work, outside magnet
Magnetic field it is in axially symmetric shape distribution in air, the larger technical problem of leakage field.
The above, above embodiments are only to illustrate the technical solution of the application, rather than its limitations；Although referring to before
Embodiment is stated the application is described in detail, those skilled in the art should understand that: it still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and scope of each embodiment technical solution of the application that it does not separate the essence of the corresponding technical solution.
Claims (5)
1. a kind of HTS-SMES magnet characterized by comprising
Superconducting coil, low-temperature (low temperature) vessel and iron core；
After the superconducting coil is socketed on the iron core outside, it is wholy set in the low temperature cavity of the low-temperature (low temperature) vessel.
2. HTS-SMES magnet according to claim 1, which is characterized in that the superconducting coil includes superconduction wire turn
And skeleton；
The skeleton is ring structure；
The superconduction wire turn around on the skeleton and be bonded be integrated.
3. HTS-SMES magnet according to claim 2, which is characterized in that the skeleton is specially circular configuration.
4. HTS-SMES magnet according to claim 2, which is characterized in that the skeleton is specially D-shape configuration.
5. HTS-SMES magnet according to claim 1, which is characterized in that in the low temperature cavity of the low-temperature (low temperature) vessel
There is liquid nitrogen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910677073.7A CN110246655A (en) | 2019-07-25 | 2019-07-25 | A kind of HTS-SMES magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910677073.7A CN110246655A (en) | 2019-07-25 | 2019-07-25 | A kind of HTS-SMES magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110246655A true CN110246655A (en) | 2019-09-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910677073.7A Pending CN110246655A (en) | 2019-07-25 | 2019-07-25 | A kind of HTS-SMES magnet |
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| Country | Link |
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| CN (1) | CN110246655A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650500A (en) * | 2021-08-12 | 2021-11-16 | 上海海事大学 | High-temperature superconducting hybrid energy storage system |
| CN113690010A (en) * | 2021-08-25 | 2021-11-23 | 北京智诺嘉能源科技有限公司 | High-temperature superconducting energy storage magnet with novel mixed structure |
| CN113764750A (en) * | 2021-09-07 | 2021-12-07 | 上海海事大学 | High-temperature superconducting energy storage monitoring system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5473301A (en) * | 1994-09-12 | 1995-12-05 | Westinghouse Electric Corporation | Energy storage inductor apparatus |
| JP2011124252A (en) * | 2009-12-08 | 2011-06-23 | Nissin Electric Co Ltd | Iron-core superconducting reactor including gap |
| KR20160038220A (en) * | 2014-09-30 | 2016-04-07 | 한국전력공사 | Superconductive electromagnet |
| CN106298153A (en) * | 2016-08-22 | 2017-01-04 | 中国科学院电工研究所 | A kind of cake-shaped high-temperature superconductive noninductive coil |
| CN209822413U (en) * | 2019-07-25 | 2019-12-20 | 广东电网有限责任公司 | High-temperature superconducting energy storage magnet |
-
2019
- 2019-07-25 CN CN201910677073.7A patent/CN110246655A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5473301A (en) * | 1994-09-12 | 1995-12-05 | Westinghouse Electric Corporation | Energy storage inductor apparatus |
| JP2011124252A (en) * | 2009-12-08 | 2011-06-23 | Nissin Electric Co Ltd | Iron-core superconducting reactor including gap |
| KR20160038220A (en) * | 2014-09-30 | 2016-04-07 | 한국전력공사 | Superconductive electromagnet |
| CN106298153A (en) * | 2016-08-22 | 2017-01-04 | 中国科学院电工研究所 | A kind of cake-shaped high-temperature superconductive noninductive coil |
| CN209822413U (en) * | 2019-07-25 | 2019-12-20 | 广东电网有限责任公司 | High-temperature superconducting energy storage magnet |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113650500A (en) * | 2021-08-12 | 2021-11-16 | 上海海事大学 | High-temperature superconducting hybrid energy storage system |
| CN113690010A (en) * | 2021-08-25 | 2021-11-23 | 北京智诺嘉能源科技有限公司 | High-temperature superconducting energy storage magnet with novel mixed structure |
| CN113764750A (en) * | 2021-09-07 | 2021-12-07 | 上海海事大学 | High-temperature superconducting energy storage monitoring system |
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