CN203242487U - Superconducting transformer - Google Patents
Superconducting transformer Download PDFInfo
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- CN203242487U CN203242487U CN2013204132316U CN201320413231U CN203242487U CN 203242487 U CN203242487 U CN 203242487U CN 2013204132316 U CN2013204132316 U CN 2013204132316U CN 201320413231 U CN201320413231 U CN 201320413231U CN 203242487 U CN203242487 U CN 203242487U
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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Abstract
The utility model provides a superconducting transformer which comprises three voltage-transformation units, wherein each voltage-transformation unit comprises an inner coil, an outer coil, an iron core and a low-temperature container. Both the inner coils and the outer coils are respectively of an elliptical coil structure. The periphery of each iron core is sleeved with each inner coil and each outer coil in sequence. The portion, penetrating through one inner coil and one outer coil, of each iron core is a cylinder with an elliptical cross section. Both the inner coils and the outer coils are arranged in the low-temperature containers. The iron cores are arranged in a normal-temperature environment. Each low-temperature container contains low-temperature liquid, and the low-temperature liquid is liquid nitrogen. Due to the fact that a normal-temperature channel or a normal-temperature groove structure is arranged in each low-temperature container, the iron cores are in the normal-structure structure all the time, and the no-load loss is reduced. Due to the fact that the coils and the iron cores are respectively of the elliptical structure, the weight of each iron core is reduced, and cost is reduced.
Description
Technical field
The utility model relates to a kind of transformer, particularly a kind of superconducting transformer.
Background technology
In the prior art, realize general main use conventional transformer and the superconducting transformer of transformer function.The operating efficiency of conventional transformer self is very high, but because its quantity is many, total losses are still very large.The load loss proportion is very large in the total losses of transformer, and the no-load loss proportion is little.
For this situation, use superconducting transformer can reduce load loss, but existing superconducting transformer often place low temperature environment with the iron core of transformer, adopt the no-load loss of superconducting transformer of this kind structure higher.And iron core generally adopts soft magnetic material, and the magnetic hysteresis loss of iron core will be than higher under the normal temperature at low temperatures for soft magnetic material.On the other hand, soft magnetic material resistance at low temperatures descends to some extent, and this just means that eddy current loss increases to some extent.Therefore not only increased the no-load loss of superconducting transformer, the thermal losses that has also increased cryogenic media, thus also just reduced the efficient of superconducting transformer.
The utility model content
The technical problems to be solved in the utility model is in order to overcome the large defective of superconducting transformer no-load loss in the prior art, a kind of superconducting transformer of no-load loss less to be provided.
The utility model is to solve above-mentioned technical problem by following technical proposals:
A kind of superconducting transformer, its characteristics be, it includes three voltage transformation unit;
Described voltage transformation unit includes an interior loop, an exterior loop, an iron core and a low-temperature (low temperature) vessel;
Described interior loop and described exterior loop all are configured to the elliptical line coil structures;
Described iron core periphery is arranged with described interior loop and described exterior loop successively, and the described iron core part of passing described interior loop and described exterior loop is set to the cylinder of oval cross section;
Described interior loop and described exterior loop all are arranged in the described low-temperature (low temperature) vessel;
Described iron core is arranged in the normal temperature environment;
Accommodate cryogenic liquid in the described low-temperature (low temperature) vessel, described cryogenic liquid is liquid nitrogen.Herein, adopt the ellipse loop construction, compare with the coil of round structure, the volume-diminished of coil, winding volume is little, occupies the space little, so also can dwindle the volume of iron core, simultaneously also reduce transformer noload losses at the material that reduces iron core, can improve the alternate space of transformer and device body integral space utilization ratio.In addition, three voltage transformation unit that is to say, this superconducting transformer is three-phase transformer.
Better, described interior loop and described exterior loop are configured to eccentricity and equate within the specific limits, the elliptical line coil structures of focus coincidence and coaxial-symmetrical, herein, amass under and the phase spacing same case identical with the circular iron core sectional area at the ellipse core section, this disciform cross section appendiron core transformer iron core column centre-to-centre spacing will reduce, and namely iron core yoke leaf length reduces, iron circuit shortens, and iron core weight also will reduce.
Be provided with at least one interior loop lead-in wire on the described interior loop, be provided with at least one exterior loop lead-in wire on the described exterior loop, corresponding at least one interior loop lead channels and at least one exterior loop lead channels of being provided with on the described low-temperature (low temperature) vessel, described interior loop lead-in wire and described exterior loop go between and pass respectively the outside that described interior loop lead channels and described exterior loop lead channels arrive described low-temperature (low temperature) vessel from the inside of described low-temperature (low temperature) vessel.
Better, offering a normal temperature hole on the described low-temperature (low temperature) vessel, described iron core passes described normal temperature hole, and described normal temperature hole is used for making described iron core be in normal temperature.
Better, offering a constant temperature oven on the described low-temperature (low temperature) vessel, described iron core inserts described constant temperature oven, and described constant temperature oven is used for making described iron core be in normal temperature.That is, be provided with a normal temperature space on the low-temperature (low temperature) vessel, iron core stretches into the normal temperature space can reduce no-load loss.
Better, described low-temperature (low temperature) vessel also is communicated with a refrigerating system, and described refrigerating system is used for extracting out in described low-temperature (low temperature) vessel and injecting cryogenic liquid, so that the temperature in the described low-temperature (low temperature) vessel keeps constant low temperature.
Better, also be provided with the guiding device of at least one flowability be used to strengthening described cryogenic liquid on the described low-temperature (low temperature) vessel.
Better, all be interconnected by described refrigerating system between the described low-temperature (low temperature) vessel.That is to say, coil and cryogenic liquid are set like this, can make each low-temperature (low temperature) vessel keep same temperature, the same to guarantee the temperature that each coil is immersed in the cryogenic liquid, coil and connection wire will be owing to the transformer self-heatings, give full play to the advantage of superconductor zero resistance by Automatic-cooling, guarantee the superconductor normal operation.
Positive progressive effect of the present utility model is: the passage by normal temperature is set in low-temperature (low temperature) vessel or the groove structure of normal temperature, so that the iron core perseverance is in normal temperature, and then reduced no-load loss; Be oval structure by coil and iron core are set, so that iron core weight is lowered, thereby reduced cost.
Description of drawings
Fig. 1 is the sectional view of the superconducting transformer of the utility model embodiment.
Embodiment
The below lifts a preferred embodiment, and comes by reference to the accompanying drawings the clearer the utility model that intactly illustrates.
Fig. 1 is the sectional view of the superconducting transformer of embodiment, and as shown in Figure 1, the superconducting transformer that the present embodiment relates to is three-phase transformer, includes: the first voltage transformation unit, the second voltage transformation unit, the 3rd voltage transformation unit and refrigerating system.
The first voltage transformation unit comprises interior loop 43, exterior loop 42, low-temperature (low temperature) vessel 41, iron core 44.
Wherein, interior loop 43 and exterior loop 42 all are configured to eccentricity and are equating, the elliptical line coil structures of focus coincidence and coaxial-symmetrical.Iron core 44 peripheries are arranged with interior loop 43 and exterior loop 42 successively, and iron core 44 part of passing interior loop 43 and exterior loop 42 is set to the cylinder of oval cross section.Interior loop 43 and exterior loop 42 all are arranged in the low-temperature (low temperature) vessel 41.Accommodate liquid nitrogen in the low-temperature (low temperature) vessel 41.
In addition, be provided with interior loop lead-in wire 453 on the interior loop 43, be provided with exterior loop lead-in wire 452 on the exterior loop 42, corresponding interior loop lead channels 463 and the exterior loop lead channels 462 of being provided with on the low-temperature (low temperature) vessel 41, interior loop lead-in wire 453 and exterior loop lead-in wire 452 are passed respectively the outside that interior loop lead channels 463 and exterior loop lead channels 462 arrive low-temperature (low temperature) vessels 41 from the inside of low-temperature (low temperature) vessel 41.
In addition, offer a normal temperature hole on the low-temperature (low temperature) vessel 41, iron core 44 passes the normal temperature hole, and the normal temperature hole is used for making iron core 44 be in normal temperature.
The second voltage transformation unit comprises interior loop 53, exterior loop 52, low-temperature (low temperature) vessel 51, iron core 54.
Wherein, interior loop 53 and exterior loop 52 all are configured to eccentricity and are equating, the elliptical line coil structures of focus coincidence and coaxial-symmetrical.Iron core 54 peripheries are arranged with interior loop 53 and exterior loop 52 successively, and iron core 54 part of passing interior loop 53 and exterior loop 52 is set to the cylinder of oval cross section.Interior loop 53 and exterior loop 52 all are arranged in the low-temperature (low temperature) vessel 51.Accommodate liquid nitrogen in the low-temperature (low temperature) vessel 51.
In addition, be provided with interior loop lead-in wire 553 on the interior loop 53, be provided with exterior loop lead-in wire 552 on the exterior loop 52, corresponding interior loop lead channels 563 and the exterior loop lead channels 562 of being provided with on the low-temperature (low temperature) vessel 51, interior loop lead-in wire 553 and exterior loop lead-in wire 552 are passed respectively the outside that interior loop lead channels 563 and exterior loop lead channels 562 arrive low-temperature (low temperature) vessels 51 from the inside of low-temperature (low temperature) vessel 51.
In addition, offer a normal temperature hole on the low-temperature (low temperature) vessel 51, iron core 54 passes the normal temperature hole, and the normal temperature hole is used for making iron core 54 be in normal temperature.
The 3rd voltage transformation unit comprises interior loop 63, exterior loop 62, low-temperature (low temperature) vessel 61, iron core 64.
Wherein, interior loop 63 and exterior loop 62 all are configured to eccentricity and are equating, the elliptical line coil structures of focus coincidence and coaxial-symmetrical.Iron core 64 peripheries are arranged with interior loop 63 and exterior loop 62 successively, and iron core 64 part of passing interior loop 63 and exterior loop 62 is set to the cylinder of oval cross section.Interior loop 63 and exterior loop 62 all are arranged in the low-temperature (low temperature) vessel 61.Accommodate liquid nitrogen in the low-temperature (low temperature) vessel 61.
In addition, be provided with interior loop lead-in wire 653 on the interior loop 63, be provided with exterior loop lead-in wire 652 on the exterior loop 62, corresponding interior loop lead channels 663 and the exterior loop lead channels 662 of being provided with on the low-temperature (low temperature) vessel 61, interior loop lead-in wire 653 and exterior loop lead-in wire 652 are passed respectively the outside that interior loop lead channels 663 and exterior loop lead channels 662 arrive low-temperature (low temperature) vessels 61 from the inside of low-temperature (low temperature) vessel 61.
In addition, offer a normal temperature hole on the low-temperature (low temperature) vessel 61, iron core 64 passes the normal temperature hole, and the normal temperature hole is used for making iron core 64 be in normal temperature.
Refrigerating system includes: refrigeration machine 71, passage 72, passage 73, passage 74, passage 75, guiding device 57, guiding device 67, guiding device 47.
Low-temperature (low temperature) vessel 41 and low-temperature (low temperature) vessel 61 are communicated with refrigeration machine 71 by passage 72, passage 75 respectively, low-temperature (low temperature) vessel 51 is connected with low-temperature (low temperature) vessel 41 and low-temperature (low temperature) vessel 61 by passage 73, passage 74 respectively, forms a liquid nitrogen circulation loop so that refrigeration machine 71, passage 72, passage 73, passage 74, passage 75 are common.Refrigeration machine 71 is used for toward low-temperature (low temperature) vessel 41, low-temperature (low temperature) vessel 51 and low-temperature (low temperature) vessel 61 interior extractions and injects liquid nitrogen, so that the temperature in low-temperature (low temperature) vessel 41, low-temperature (low temperature) vessel 51 and the low-temperature (low temperature) vessel 61 keeps constant low temperature.
Although more than described embodiment of the present utility model, it will be understood by those of skill in the art that these only illustrate, protection range of the present utility model is limited by appended claims.Those skilled in the art can make various changes or modifications to these execution modes under the prerequisite that does not deviate from principle of the present utility model and essence, for example, do not use the normal temperature hole, and adopts iron core to insert the structure setting of constant temperature oven.But these changes and modification all fall into protection range of the present utility model.
Claims (7)
1. a superconducting transformer is characterized in that, it includes three voltage transformation unit;
Described voltage transformation unit includes an interior loop, an exterior loop, an iron core and a low-temperature (low temperature) vessel;
Described interior loop and described exterior loop all are configured to the elliptical line coil structures;
Described iron core periphery is arranged with described interior loop and described exterior loop successively, and the described iron core part of passing described interior loop and described exterior loop is set to the cylinder of oval cross section;
Described interior loop and described exterior loop all are arranged in the described low-temperature (low temperature) vessel;
Described iron core is arranged in the normal temperature environment;
Accommodate cryogenic liquid in the described low-temperature (low temperature) vessel, described cryogenic liquid is liquid nitrogen.
2. superconducting transformer as claimed in claim 1 is characterized in that, described interior loop and described exterior loop are configured to eccentricity and equate within the specific limits, the elliptical line coil structures of focus coincidence and coaxial-symmetrical;
Be provided with at least one interior loop lead-in wire on the described interior loop, be provided with at least one exterior loop lead-in wire on the described exterior loop, corresponding at least one interior loop lead channels and at least one exterior loop lead channels of being provided with on the described low-temperature (low temperature) vessel, described interior loop lead-in wire and described exterior loop go between and pass respectively the outside that described interior loop lead channels and described exterior loop lead channels arrive described low-temperature (low temperature) vessel from the inside of described low-temperature (low temperature) vessel.
3. superconducting transformer as claimed in claim 2 is characterized in that, offers a normal temperature hole on the described low-temperature (low temperature) vessel, and described iron core passes described normal temperature hole, and described normal temperature hole is used for making described iron core be in normal temperature.
4. superconducting transformer as claimed in claim 2 is characterized in that, offers a constant temperature oven on the described low-temperature (low temperature) vessel, and described iron core inserts described constant temperature oven, and described constant temperature oven is used for making described iron core be in normal temperature.
5. such as each described superconducting transformer in the claim 1～4, it is characterized in that, described low-temperature (low temperature) vessel also is communicated with a refrigerating system, and described refrigerating system is used for extracting out in described low-temperature (low temperature) vessel and injecting cryogenic liquid, so that the temperature in the described low-temperature (low temperature) vessel keeps constant low temperature.
6. superconducting transformer as claimed in claim 5 is characterized in that, also is provided with the guiding device of at least one flowability be used to strengthening described cryogenic liquid on the described low-temperature (low temperature) vessel.
7. superconducting transformer as claimed in claim 6 is characterized in that, all is interconnected by described refrigerating system between the described low-temperature (low temperature) vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204132316U CN203242487U (en) | 2013-07-11 | 2013-07-11 | Superconducting transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204132316U CN203242487U (en) | 2013-07-11 | 2013-07-11 | Superconducting transformer |
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| Publication Number | Publication Date |
|---|---|
| CN203242487U true CN203242487U (en) | 2013-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013204132316U Expired - Fee Related CN203242487U (en) | 2013-07-11 | 2013-07-11 | Superconducting transformer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485216A (en) * | 2014-12-31 | 2015-04-01 | 上海和鸣变压器有限公司 | Superconducting dry-type transformer |
| CN104505242A (en) * | 2014-12-31 | 2015-04-08 | 上海和鸣变压器有限公司 | Superconducting dry type transformer for wind power generation |
| CN105551779A (en) * | 2016-03-07 | 2016-05-04 | 云南电网有限责任公司电力科学研究院 | Superconducting controllable reactor |
| CN111627684A (en) * | 2020-05-07 | 2020-09-04 | 中国科学院电工研究所 | Superconducting current-limiting transformer cooled by using liquid nitrogen and fluorocarbon mixed liquid insulating medium |
-
2013
- 2013-07-11 CN CN2013204132316U patent/CN203242487U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104485216A (en) * | 2014-12-31 | 2015-04-01 | 上海和鸣变压器有限公司 | Superconducting dry-type transformer |
| CN104505242A (en) * | 2014-12-31 | 2015-04-08 | 上海和鸣变压器有限公司 | Superconducting dry type transformer for wind power generation |
| CN105551779A (en) * | 2016-03-07 | 2016-05-04 | 云南电网有限责任公司电力科学研究院 | Superconducting controllable reactor |
| CN105551779B (en) * | 2016-03-07 | 2017-05-31 | 云南电网有限责任公司电力科学研究院 | A kind of superconductive controllable reactor |
| CN111627684A (en) * | 2020-05-07 | 2020-09-04 | 中国科学院电工研究所 | Superconducting current-limiting transformer cooled by using liquid nitrogen and fluorocarbon mixed liquid insulating medium |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20200711 |