CN2749029Y - Superconducting reactor - Google Patents
Superconducting reactor Download PDFInfo
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- CN2749029Y CN2749029Y CN 200420068725 CN200420068725U CN2749029Y CN 2749029 Y CN2749029 Y CN 2749029Y CN 200420068725 CN200420068725 CN 200420068725 CN 200420068725 U CN200420068725 U CN 200420068725U CN 2749029 Y CN2749029 Y CN 2749029Y
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Abstract
The utility model relates to a superconducting reactor. The superconducting reactor comprises an iron core and a winding group, wherein, the inner side of the end part of the winding group is provided with an electric shield device, and the electric shield device is a diamagnetic ferrule. The utility model which can efficiently reduce the transverse component of high-temperature superconductive winding group end leakage magnetic field and improve the security and reliability of the operation of the winding group has the advantages of simple structure, low cost and convenient installation.
Description
Technical field
The utility model belongs to the superconduction electrical technology field, is specifically related to a kind of superconduction reactor.
Background technology
Present high temperature superconductor coil mainly comes coiling by Bi based high-temperature superconductive strip Bi-2223.In addition, also useful Bi based high-temperature superconductive strip Bi-2212, Y based high-temperature superconductive strip YBCO and other belt material of high temperature superconduct are as the current of high temperature superconductor coil.Because these belt material of high temperature superconduct have higher critical temperature, may operate in liquid nitrogen temperature (77K) under and by higher current density, therefore, the high temperature superconductive wire coil apparatus of use belt material of high temperature superconduct coiling is obtaining application more and more widely.The material that is widely used in windings such as high-temperature superconductive transformer, flow restricter, energy storage coil at present is the Bi-2223 belt material of high temperature superconduct, show as very strong anisotropy in its outside magnetic field: as shown in Figure 1, 2, under the constant situation of other conditions such as temperature, the current capacity of band can weaken along with the enhancing of background magnetic field; When outer magnetic field direction when being parallel to the zone face direction, this current capacity comparatively relaxes with the trend of field weakening, especially when parallel field during less than 100mT this trend do not showed; And when external magnetic field be during perpendicular to the zone face direction, this current capacity can significantly strengthen with the trend of field weakening apparatus, perpendicualr field is when 100mT, the critical current of superconducting tape (current capacity) only is 50% of a null field lower critical electric current.The decline of this current capacity will increase the loss of winding greatly, thereby makes winding local pyrexia quench burn whole winding.And Bi system high-temperature superconducting winding, mainly make two kinds of citation forms at present: spiral and cake formula, there is certain difficulty when the coiling continous way pie winding by this this kind superconducting tape, thereby the two cakes of the general employing of pie winding are in parallel or two cakes are serially connected, but no matter be which kind of winding, no matter also whether its winding center exists iron core (transformer generally all is enclosed within the iron core, then cored formula of reactor and open-core type), the always parallel or approximate superconduction zone face that is parallel in magnetic field at winding middle part then can be dispersed in the end.Thereby there is a problem that how to solve the horizontal stray field of winding overhang.
Swedish patent (SE 92024553)---a kind of winding construction that reduces the vertical stray field of winding overhang and reduce the winding A.C.power loss is disclosed in " winding support structure of superconducting transformer, reactor ", as shown in Figure 3, belt material of high temperature superconduct is wound on the winding skeleton 6 in a tubular form that is carved with annular skewed slot, between iron core 3 and winding skeleton 6, the low-temperature (low temperature) vessel wall is arranged, the width of skewed slot is slightly larger than the width of band on the winding skeleton 6, and incline direction is the direction of this place's electromagnetic field.There is following shortcoming in this patent: 1, winding skeleton structure complexity is difficult for processing; 2, the winding skeleton of this structure only just can reach its described effect under the prerequisite of electromagnetic field accurate Calculation, and actual conditions to be stray field directions of winding overhang influenced by many factors, be difficult to accurate Calculation; 3, because lead is wound on the winding skeleton of inclination,, makes that winding technique is not compact and damage lead easily therefore along strip width direction radius difference.
As shown in Figure 4, in U.S. Pat 5659277, disclose another and reduced the winding construction of the horizontal stray field of winding overhang, this structure has increased magnetic shielding device 8 at winding overhang, exchange or the direct current magnet no matter be, this structure all can reduce the component of the horizontal stray field of winding overhang to a certain extent, but the magnetic shielding device of this kind structure is comparatively complicated, and just plays effect to a certain extent.
Summary of the invention
Technical problem to be solved in the utility model is the shortcoming that exchanges with the high-temperature superconductor winding at existing, provides a kind of and can effectively reduce the cross stream component of high-temperature superconductor brow leakage field, superconduction reactor simple in structure.
The technical scheme that solution the utility model technical problem is adopted is this superconduction reactor, comprises iron core, winding, is equipped with electrical barrier devices in the winding overhang inboard, and electrical barrier devices is anti-magnetic becket.
The utility model has reduced the A.C.power loss of winding overhang effectively, has improved the property safe and reliable to operation of winding, and simple in structure, cost is low, easy for installation.
Description of drawings
Below in conjunction with the embodiment accompanying drawing the utility model is described in further detail.
Fig. 1 is the parallel magnetic field and the vertical magnetic field schematic diagram in magnetic field
Fig. 2 is parallel magnetic field and vertical magnetic field anisotropy figure
Fig. 3 is the structural representation of Swedish patent (SE 92024553)
Fig. 4 is the structural representation of United States Patent (USP) (US 5659277)
Fig. 5 is a structural representation of the present utility model
Fig. 6 is a kind of structural representation of anti-magnetic becket 4
Fig. 7 is the another kind of structural representation of anti-magnetic becket 4
Fig. 8 is the brow leakage field pattern of reactor in the prior art
Fig. 9 is the utility model brow leakage field pattern
Among the figure: 1-Dewar type container, 2-winding, 3-iron core 4-anti-magnetic becket 5-air gap 6-winding skeleton 7-winding flange 8-magnetic shielding device
Embodiment
The utility model comprises iron core 3, winding 2, and winding 2 is the superconduction winding, and in order to reduce the stray field of winding 2, winding 2 adopts two division windings, and the number of turn of two windings, interior external diameter etc. are in full accord.Inboard, winding 2 two ends respectively is equipped with electrical barrier devices, and electrical barrier devices is anti-magnetic becket 4.Anti-magnetic becket 4 adopts the high conduction of non-closure, low permeability magnetic material to make, its shape can have two kinds (shown in Fig. 6,7): a kind ofly turn to concentric several circles from inside to outside by endless metal belt, the head and the tail of endless metal belt do not join, and insulating material are arranged to avoid each turn-to-turn fault between its each circle; Many notched endless metal belts of another kind of employing have insulating material to make electric insulation along being nested with one heart between the electric disconnection of each endless metal belt self and each endless metal belt, and wherein endless metal belt adopts copper strips or aluminium strip or silver band.The utility model also includes the Dewar type container 1 that low temperature is preserved moisture, and Dewar type container 1 places outside the winding 2, and Dewar type container 1 can be two, and each Dewar type container is built-in with a winding; Dewar type container 1 also can adopt a Dewar type container that includes two room temperature holes, and present embodiment adopts the latter.
The assembling process of present embodiment is as follows: as shown in Figure 5, the winding 2 that coiling is good is put into Dewar type container 1, has two room temperature holes to be passed by iron core 3 in the Dewar type container 1, and iron core 3 is iron core-closed, but in order to prevent the saturated of iron core, on iron core 3 and have the little air gap of some width 5.The coiling or be sleeved on two principal posts of iron core 3 respectively of two windings with two windings polyphone, should make their flow direction unanimities in iron core then behind the polyphone, promptly increase magnetic flux.Near the upper and lower end parts of two windings, place anti-magnetic becket 4 between winding 2 and the iron core 3.
The stray field distribution map of Fig. 8 reactor end when not using anti-magnetic becket in the prior art, Fig. 9 is the utility model brow leakage field pattern.The use of anti-as seen from the figure magnetic becket has changed the path of stray field at winding overhang, has reduced the horizontal stray field of winding overhang.
Claims (10)
1, a kind of superconduction reactor comprises iron core (3), winding (2), it is characterized in that being equipped with electrical barrier devices in winding (2) inboard, end.
2, superconduction reactor according to claim 1 is characterized in that electrical barrier devices is an anti-magnetic becket (4).
3, superconduction reactor according to claim 2 is characterized in that anti-magnetic becket (4) can turn to concentric several circles from inside to outside by endless metal belt, and the head and the tail of endless metal belt do not join, and between its each circle insulating material is arranged.
4, superconduction reactor according to claim 2 is characterized in that anti-magnetic becket (4) can have insulating material between each endless metal belt by many notched endless metal belts along being nested with one heart.
5,, it is characterized in that endless metal belt can adopt copper strips or aluminium strip or silver band according to claim 3 or 4 described superconduction reactors.
6, superconduction reactor according to claim 1 is characterized in that having on the iron core (3) air gap (5).
7,, it is characterized in that winding (2) is the superconduction winding, and be two division windings according to claim 1 or 6 described superconduction reactors.
8, according to claim 1 or 6 described superconduction reactors, it is characterized in that this reactor also includes Dewar type container (1), Dewar type container (1) places outside the winding (2).
9, superconduction reactor according to claim 8 is characterized in that Dewar type container (1) can be two, and each Dewar type container is built-in with a winding.
10, superconduction reactor according to claim 8 is characterized in that Dewar type container (1) can adopt a Dewar type container that includes two room temperature holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420068725 CN2749029Y (en) | 2004-09-17 | 2004-09-17 | Superconducting reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420068725 CN2749029Y (en) | 2004-09-17 | 2004-09-17 | Superconducting reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2749029Y true CN2749029Y (en) | 2005-12-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420068725 Expired - Fee Related CN2749029Y (en) | 2004-09-17 | 2004-09-17 | Superconducting reactor |
Country Status (1)
| Country | Link |
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| CN (1) | CN2749029Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499350B (en) * | 2008-01-28 | 2011-02-16 | 北京云电英纳超导电缆有限公司 | Superconducting magnet framework |
| CN103680889A (en) * | 2012-09-20 | 2014-03-26 | 成都达瑞斯科技有限公司 | Active field fully-magnetic shielding mouse-cage-shaped superconducting electric reactor |
| CN103680890A (en) * | 2012-09-20 | 2014-03-26 | 成都达瑞斯科技有限公司 | Active field fully-magnetic shielding mouse-cage-shaped double-iron-column superconducting electric reactor |
| CN108463861A (en) * | 2015-12-22 | 2018-08-28 | 超级电力研究所 | Power transformer for remote high-voltage equipment |
| CN109088549A (en) * | 2018-08-23 | 2018-12-25 | 中国能源建设集团广东省电力设计研究院有限公司 | Using the inverter of division reactance |
| CN114496460A (en) * | 2022-03-18 | 2022-05-13 | 北京交通大学 | Magnetic shunt ring and superconducting transformer comprising same |
-
2004
- 2004-09-17 CN CN 200420068725 patent/CN2749029Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101499350B (en) * | 2008-01-28 | 2011-02-16 | 北京云电英纳超导电缆有限公司 | Superconducting magnet framework |
| CN103680889A (en) * | 2012-09-20 | 2014-03-26 | 成都达瑞斯科技有限公司 | Active field fully-magnetic shielding mouse-cage-shaped superconducting electric reactor |
| CN103680890A (en) * | 2012-09-20 | 2014-03-26 | 成都达瑞斯科技有限公司 | Active field fully-magnetic shielding mouse-cage-shaped double-iron-column superconducting electric reactor |
| CN108463861A (en) * | 2015-12-22 | 2018-08-28 | 超级电力研究所 | Power transformer for remote high-voltage equipment |
| CN109088549A (en) * | 2018-08-23 | 2018-12-25 | 中国能源建设集团广东省电力设计研究院有限公司 | Using the inverter of division reactance |
| CN109088549B (en) * | 2018-08-23 | 2020-08-04 | 中国能源建设集团广东省电力设计研究院有限公司 | Current converter using split reactance |
| CN114496460A (en) * | 2022-03-18 | 2022-05-13 | 北京交通大学 | Magnetic shunt ring and superconducting transformer comprising same |
| CN114496460B (en) * | 2022-03-18 | 2022-12-23 | 北京交通大学 | Shunt ring and superconducting transformer comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |