CN104485217A - Photovoltaic superconducting dry-type transformer - Google Patents
Photovoltaic superconducting dry-type transformer Download PDFInfo
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- CN104485217A CN104485217A CN201410851616.XA CN201410851616A CN104485217A CN 104485217 A CN104485217 A CN 104485217A CN 201410851616 A CN201410851616 A CN 201410851616A CN 104485217 A CN104485217 A CN 104485217A
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] 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
- 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 invention discloses a photovoltaic superconducting dry-type transformer, comprising six coil components, wherein three of the six coil components are arranged in parallel in the horizontal direction; the other three coil components are arranged horizontal in the horizontal direction, and are located right below the first three coil components; the six coil components are fixedly connected through a plurality of connecting rods. According to the photovoltaic superconducting dry-type transformer, coils are made of second-generation high-temperature superconducting tapes in a winding way, so that the internal electric fields of the coils are uniformly distributed, the good electric performance of the coils is guaranteed, the load loss of the transformer is lowered, the magnitude of partial discharge is small, the lightning impulse resistance is strong, and the service life of the transformer is effectively prolonged; with the adoption of a standard elliptical sectional multilayer cylindrical coil structure, the advantage of impact resistance of common cylindrical coils is kept; as the voltage between layers of the coils is also decreased, the magnitude of partial discharge is lowered, and the heat radiating area of the coils is increased, and the problems that existing coils are overhigh in voltage among layers and not good in heat dissipation are solved.
Description
Technical field
The present invention relates to a kind of transformer, particularly a kind of photovoltaic superconduction dry-type transformer.
Background technology
Transformer is a kind of static electrical equipment.Utilize electromagnetic induction principle between two or more coils, a kind of voltage and current of grade is converted to the voltage and current of the another kind of grade of same frequency, and electric energy transmitting.Coil is the basic element of character of transformer change voltage, and coil is made up of the different numbers of turn, because the one turn voltage of different coil is the same, therefore, needs to make coil have the different numbers of turn to reach different voltage.Also instantaneous atmospheric over-voltage will be sustained, internal overvoltage and long-term work voltage in the insulation of Transformer coil.The impact of atmospheric over-voltage on coil is even more serious.
Existing photovoltaic dry-type transformer exists that load loss is higher, voltage between layers is too high and the problem such as bad of dispelling the heat.
Summary of the invention
Object of the present invention, provides a kind of photovoltaic superconduction dry-type transformer exactly in order to solve the problem, have that load loss is low, voltage between layers is lower, an advantage such as better of dispelling the heat.
The object of the present invention is achieved like this:
A kind of photovoltaic superconduction dry-type transformer of the present invention, comprise six coil blocks, wherein three described coil block parallel settings in the horizontal direction, other three described coil blocks are horizontally disposed with in the horizontal direction and are positioned at immediately below above-mentioned three coil blocks, are fixedly connected with between six described coil blocks by some connecting rods.
Above-mentioned a kind of photovoltaic superconduction dry-type transformer, wherein, described coil block comprises insulation shell, be located at the coil that iron core in this insulation shell and four spacer segments are arranged, a section insulation cushion block is provided with between adjacent windings, the cross section of described four sections of coils is standard oval, described four sections of coils are followed successively by first paragraph coil from top to bottom along the axial direction of described insulation shell, second segment coil, 3rd section of coil and the 4th section of coil, described first paragraph coil, second segment coil, on the outer surface that 3rd section of coil and the 4th section of coil are all sheathed on described iron core and between the internal face and the outer surface of described iron core of described insulation shell, described first paragraph coil, second segment coil, 3rd section of coil and the 4th section of coil are by some coil layer radially arranged, and be provided with layer insulation between adjacent coil layers.
Above-mentioned a kind of photovoltaic superconduction dry-type transformer, wherein, described coil layer is formed by second-generation high-temperature superconductor coiling, and described insulation shell is made up of epoxy resin.
Above-mentioned a kind of photovoltaic superconduction dry-type transformer, wherein, the upper and lower of described insulation shell sidewall is respectively equipped with the first high-voltage terminal nut and the second high-voltage terminal nut, one end of described first paragraph coil through described insulation shell through described first high-voltage terminal nut, one end of described 4th section of coil through described insulation shell through described second high-voltage terminal nut.
Above-mentioned a kind of photovoltaic superconduction dry-type transformer, wherein, the middle part of described insulation shell sidewall is provided with six third high extrusion line nuts for passing for one end of described second segment coil and the 3rd section of coil.
Above-mentioned a kind of photovoltaic superconduction dry-type transformer, wherein, the shape of cross section of described iron core comprises intermediate rectangular, and the bilateral symmetry of intermediate rectangular is distributed with the rectangle that length and width reduce successively, makes the cross sectional shape ovalisation of iron core.
Above-mentioned a kind of photovoltaic superconduction dry-type transformer, wherein, be fixedly connected with respectively by a connecting rod between the second high-voltage terminal nut on the coil block of upper right and the first high-voltage terminal nut on this coil block of upper left, the first high-voltage terminal nut on this coil block of lower left; And be fixedly connected with by a connecting rod between the first high-voltage terminal nut on this coil block of lower left and the second high-voltage terminal nut on the coil block of lower right.
Above-mentioned a kind of photovoltaic superconduction dry-type transformer, wherein, be fixedly connected with respectively by a connecting rod between the second high-voltage terminal nut on this coil block of upper left and the first high-voltage terminal nut on the coil block in the middle of the top, the first high-voltage terminal nut on this coil block in the middle of below; And be fixedly connected with by a connecting rod between the first high-voltage terminal nut on this coil block in the middle of the below and the second high-voltage terminal nut on the coil block of lower left.
Above-mentioned a kind of photovoltaic superconduction dry-type transformer, wherein, be fixedly connected with respectively by a connecting rod between the second high-voltage terminal nut on the coil block in the middle of the top and the first high-voltage terminal nut on this coil block of upper right, the first high-voltage terminal nut on this coil block of lower right; And the first high-voltage terminal nut on this coil block of lower right is fixedly connected with by a connecting rod with between the second high-voltage terminal nut on the coil block in the middle of below.
Coil in the present invention adopts second-generation high-temperature superconductor coiling to form, make coil inside Electric Field Distribution even, thus can ensure that coil has good electric property, reduce transformer load loss, partial discharge quantity is few, lightning impulse resistant ability is strong, effectively extends the useful life of transformer;
The present invention adopts standard oval segmented multi-level cylindrical coil structure, inherit the shock-resistant advantage of common cylindrical layer winding, coil interlayer voltage is made again to reduce, thus reduce partial discharge quantity, increase the area of dissipation of coil, solve the problem that voltage between layers is too high and heat radiation is bad that coil in the past exists.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of coil assembly of the present invention;
Fig. 3 is the cutaway view along A-A direction in Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Refer to Fig. 1, photovoltaic superconduction dry-type transformer of the present invention, comprise six coil blocks 12, wherein three coil block 12 parallel settings in the horizontal direction, other three coil blocks 12 are horizontally disposed with in the horizontal direction and are positioned at immediately below above-mentioned three coil blocks 12, are fixedly connected with between six coil blocks 12 by some connecting rods 11.
Refer to Fig. 2 and Fig. 3, coil block 12 comprises insulation shell 121, be located at the coil that iron core 122 in this insulation shell 121 and four spacer segments are arranged, a section insulation cushion block 132 is provided with between adjacent windings, the cross section of four sections of coils is standard oval, four sections of coils are followed successively by first paragraph coil 123 from top to bottom along the axial direction of insulation shell 121, second segment coil 124, 3rd section of coil 125 and the 4th section of coil 126, first paragraph coil 123, second segment coil 124, on the outer surface that 3rd section of coil 125 and the 4th section of coil 126 are all sheathed on iron core 122 and between the internal face and the outer surface of iron core 122 of insulation shell 121.
First paragraph coil 123, second segment coil 124, the 3rd section of coil 125 and the 4th section of coil 126 by some coil layer 127 radially arranged, and are provided with layer insulation 128 between adjacent coil layers 127.
Coil layer 127 is formed by second-generation high-temperature superconductor coiling.
Insulation shell 121 is made up of epoxy resin.
The upper and lower of insulation shell 121 sidewall is respectively equipped with the first high-voltage terminal nut 129 and the second high-voltage terminal nut 130, one end of first paragraph coil 123 through insulation shell 121 through one end of the first high-voltage terminal nut the 129, four section of coil 126 through insulation shell 121 through the second high-voltage terminal nut 130.
The middle part of insulation shell 121 sidewall is provided with six third high extrusion line nuts 131 for passing for one end of second segment coil 124 and the 3rd section of coil 125.
The shape of cross section of iron core 122 comprises intermediate rectangular, and the bilateral symmetry of intermediate rectangular is distributed with the rectangle that length and width reduce successively, makes the cross sectional shape ovalisation of iron core 122.Oval-shaped iron core 122 can realize the object improving the alternate space of transformer and device body integral space utilization ratio, at the sectional area of oval-shaped iron core 122 and the sectional area of circular iron core is identical and under phase spacing same case, the iron core column centre-to-centre spacing of this oval-shaped iron core 122 will reduce, namely iron core yoke leaf length reduces, and iron circuit shortens.Therefore iron core 122 weight also will reduce, and so just reach the object reducing iron core weight and reduction no-load loss when lamination material is determined constant with magnetic flux density, reduce the manufacturing cost of dry-type transformer.
Coil layer 127 adopts second-generation high-temperature superconductor coiling to form.At present, the high-temperature superconductive transformer of domestic and international demonstrating running generally adopts Bi2223/Ag superconductor, and this kind of first generation belt material of high temperature superconduct is owing to using noble silver as jacket, and material cost is higher, its expense accounts for the 70-80% of superconducting transformer cost, and raising cost performance is difficult to development.Second-generation high-temperature superconductor is that its base band does not adopt silver, greatly can reduce material cost at stainless steel base band Epitaxial growth YBaCuO superconducting thin film.In addition, because Bi series superconducting material is much higher than in the irreversible magnetic field of YBaCuO superconductor under 77K, the A.C.power loss under its 77K can far below first generation high temperature superconducting materia.The present invention adopts the second-generation high-temperature superconductor of a kind of new type high temperature superconducting tape-namely formed based on the high-temperature superconducting thin film on metal base band, is the practical superconductor that a kind of liquid nitrogen temperature supercurrent transmission density and irreversible magnetic field have clear superiority.
Adopt standard oval segmented multi-level cylindrical coil structure, inherit the shock-resistant advantage of common cylindrical layer winding, coil interlayer voltage is made again to reduce, thus reduce partial discharge quantity, increase the area of dissipation of coil, solve the problem that voltage between layers is too high and heat radiation is bad that coil in the past exists.
Refer to Fig. 1, be fixedly connected with respectively by a connecting rod 11 between the second high-voltage terminal nut 130 on the coil block 12 of upper right and the first high-voltage terminal nut 129 on this coil block 12 of upper left, the first high-voltage terminal nut 129 on this coil block 12 of lower left; And be also fixedly connected with by a connecting rod 11 between the first high-voltage terminal nut 129 on this coil block 12 of lower left and the second high-voltage terminal nut 130 on the coil block 12 of lower right.Like this coil block 12 being positioned at four bights is joined together to form an entirety.
Be fixedly connected with respectively by a connecting rod 11 between the second high-voltage terminal nut 130 on this coil block 12 of upper left and the first high-voltage terminal nut 129 on the coil block 12 in the middle of the top, the first high-voltage terminal nut 129 on this coil block 12 in the middle of below; And be also fixedly connected with by a connecting rod 11 between the first high-voltage terminal nut 129 on this coil block 12 in the middle of the below and the second high-voltage terminal nut 130 on the coil block 12 of lower left.Like this four coil blocks 12 being positioned at left side are joined together to form an entirety.
Be fixedly connected with respectively by a connecting rod 11 between the second high-voltage terminal nut 130 on coil block 12 in the middle of the top and the first high-voltage terminal nut 129 on this coil block 12 of upper right, the first high-voltage terminal nut 129 on this coil block 12 of lower right; And the first high-voltage terminal nut 129 on this coil block 12 of lower right is also fixedly connected with by a connecting rod 11 with between the second high-voltage terminal nut 130 on the coil block 12 in the middle of below.Like this four coil blocks 12 being positioned at right side are joined together to form an entirety.
Above embodiment is used for illustrative purposes only, but not limitation of the present invention, person skilled in the relevant technique, without departing from the spirit and scope of the present invention, various conversion or modification can also be made, therefore all equivalent technical schemes also should belong to category of the present invention, should be limited by each claim.
Claims (9)
1. a photovoltaic superconduction dry-type transformer, it is characterized in that, comprise six coil blocks, wherein three described coil block parallel settings in the horizontal direction, other three described coil blocks are horizontally disposed with in the horizontal direction and are positioned at immediately below above-mentioned three coil blocks, are fixedly connected with between six described coil blocks by some connecting rods.
2. a kind of photovoltaic superconduction dry-type transformer as claimed in claim 1, it is characterized in that, described coil block comprises insulation shell, be located at the coil that iron core in this insulation shell and four spacer segments are arranged, a section insulation cushion block is provided with between adjacent windings, the cross section of described four sections of coils is standard oval, described four sections of coils are followed successively by first paragraph coil from top to bottom along the axial direction of described insulation shell, second segment coil, 3rd section of coil and the 4th section of coil, described first paragraph coil, second segment coil, on the outer surface that 3rd section of coil and the 4th section of coil are all sheathed on described iron core and between the internal face and the outer surface of described iron core of described insulation shell, described first paragraph coil, second segment coil, 3rd section of coil and the 4th section of coil are by some coil layer radially arranged, and be provided with layer insulation between adjacent coil layers.
3. a kind of photovoltaic superconduction dry-type transformer as claimed in claim 2, it is characterized in that, described coil layer is formed by second-generation high-temperature superconductor coiling, and described insulation shell is made up of epoxy resin.
4. a kind of photovoltaic superconduction dry-type transformer as claimed in claim 2, it is characterized in that, the upper and lower of described insulation shell sidewall is respectively equipped with the first high-voltage terminal nut and the second high-voltage terminal nut, one end of described first paragraph coil through described insulation shell through described first high-voltage terminal nut, one end of described 4th section of coil through described insulation shell through described second high-voltage terminal nut.
5. a kind of photovoltaic superconduction dry-type transformer as claimed in claim 2, is characterized in that, the middle part of described insulation shell sidewall is provided with six third high extrusion line nuts for passing for one end of described second segment coil and the 3rd section of coil.
6. a kind of photovoltaic superconduction dry-type transformer as claimed in claim 2, it is characterized in that, the shape of cross section of described iron core comprises intermediate rectangular, and the bilateral symmetry of intermediate rectangular is distributed with the rectangle that length and width reduce successively, makes the cross sectional shape ovalisation of iron core.
7. a kind of photovoltaic superconduction dry-type transformer as claimed in claim 2, it is characterized in that, be fixedly connected with respectively by a connecting rod between the second high-voltage terminal nut on the coil block of upper right and the first high-voltage terminal nut on this coil block of upper left, the first high-voltage terminal nut on this coil block of lower left; And be fixedly connected with by a connecting rod between the first high-voltage terminal nut on this coil block of lower left and the second high-voltage terminal nut on the coil block of lower right.
8. a kind of photovoltaic superconduction dry-type transformer as claimed in claim 2, it is characterized in that, be fixedly connected with respectively by a connecting rod between the second high-voltage terminal nut on this coil block of upper left and the first high-voltage terminal nut on the coil block in the middle of the top, the first high-voltage terminal nut on this coil block in the middle of below; And be fixedly connected with by a connecting rod between the first high-voltage terminal nut on this coil block in the middle of the below and the second high-voltage terminal nut on the coil block of lower left.
9. a kind of photovoltaic superconduction dry-type transformer as claimed in claim 2, it is characterized in that, be fixedly connected with respectively by a connecting rod between the second high-voltage terminal nut on the coil block in the middle of the top and the first high-voltage terminal nut on this coil block of upper right, the first high-voltage terminal nut on this coil block of lower right; And the first high-voltage terminal nut on this coil block of lower right is fixedly connected with by a connecting rod with between the second high-voltage terminal nut on the coil block in the middle of below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410851616.XA CN104485217B (en) | 2014-12-31 | 2014-12-31 | Photovoltaic superconduction dry-type transformer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410851616.XA CN104485217B (en) | 2014-12-31 | 2014-12-31 | Photovoltaic superconduction dry-type transformer |
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| CN104485217A true CN104485217A (en) | 2015-04-01 |
| CN104485217B CN104485217B (en) | 2016-08-17 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63245914A (en) * | 1987-03-31 | 1988-10-13 | Toshiba Corp | Self-cooled gas insulated transformer |
| CN1276909A (en) * | 1997-09-12 | 2000-12-13 | 美国超导体公司 | Fault current limiting superconducting coil |
| CN102064005A (en) * | 2010-10-13 | 2011-05-18 | 山东泰开箱变有限公司 | Maintainable novel dry type transformer special for offshore wind power |
| CN202711923U (en) * | 2012-08-01 | 2013-01-30 | 苏州星州变压器有限公司 | High-voltage coil structure of dry type transformer cast by epoxy resin |
| CN103021633A (en) * | 2011-09-28 | 2013-04-03 | 遵义长变变压器有限责任公司 | Transformer with cross section of iron core being in oval shape |
| CN103337344A (en) * | 2013-07-22 | 2013-10-02 | 扬州华鼎电器有限公司 | Double-split epoxy resin insulation dry type boosting transformer for wind power and photovoltaic power generation |
| CN203232797U (en) * | 2013-04-01 | 2013-10-09 | 特变电工股份有限公司 | Epoxy pouring dry type transformer |
| CN203456259U (en) * | 2013-09-29 | 2014-02-26 | 四川风发电气科技有限公司 | High tension coil of resin cast dry wound core transformer |
| CN203607215U (en) * | 2013-11-06 | 2014-05-21 | 天津市特变电工变压器有限公司 | Pie type resin-cast high-voltage coil structure |
| CN204303537U (en) * | 2014-12-31 | 2015-04-29 | 上海和鸣变压器有限公司 | Photovoltaic superconduction dry-type transformer |
-
2014
- 2014-12-31 CN CN201410851616.XA patent/CN104485217B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63245914A (en) * | 1987-03-31 | 1988-10-13 | Toshiba Corp | Self-cooled gas insulated transformer |
| CN1276909A (en) * | 1997-09-12 | 2000-12-13 | 美国超导体公司 | Fault current limiting superconducting coil |
| CN102064005A (en) * | 2010-10-13 | 2011-05-18 | 山东泰开箱变有限公司 | Maintainable novel dry type transformer special for offshore wind power |
| CN103021633A (en) * | 2011-09-28 | 2013-04-03 | 遵义长变变压器有限责任公司 | Transformer with cross section of iron core being in oval shape |
| CN202711923U (en) * | 2012-08-01 | 2013-01-30 | 苏州星州变压器有限公司 | High-voltage coil structure of dry type transformer cast by epoxy resin |
| CN203232797U (en) * | 2013-04-01 | 2013-10-09 | 特变电工股份有限公司 | Epoxy pouring dry type transformer |
| CN103337344A (en) * | 2013-07-22 | 2013-10-02 | 扬州华鼎电器有限公司 | Double-split epoxy resin insulation dry type boosting transformer for wind power and photovoltaic power generation |
| CN203456259U (en) * | 2013-09-29 | 2014-02-26 | 四川风发电气科技有限公司 | High tension coil of resin cast dry wound core transformer |
| CN203607215U (en) * | 2013-11-06 | 2014-05-21 | 天津市特变电工变压器有限公司 | Pie type resin-cast high-voltage coil structure |
| CN204303537U (en) * | 2014-12-31 | 2015-04-29 | 上海和鸣变压器有限公司 | Photovoltaic superconduction dry-type transformer |
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| CN104485217B (en) | 2016-08-17 |
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Address after: 201506, 500, Zhu Zhu Road, 4, Shanghai, Jinshan District Patentee after: Shanghai and Superconducting Transformer Co. Ltd. Patentee after: Chen Sujuan Address before: 201506, 500, Zhu Zhu Road, 4, Shanghai, Jinshan District Patentee before: SHANGHAI HEMING TRANSFORMER CO., LTD. Patentee before: Chen Sujuan |
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Inventor after: Huang Wei Inventor before: Chen Sujuan |
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Effective date of registration: 20170828 Address after: 201506 Shanghai, Jinshan District Ting Wei Road, building 4185, No. 2 Patentee after: China Zhongbian Group Shanghai Transformer Co., Ltd. Address before: 201506, 500, Zhu Zhu Road, 4, Shanghai, Jinshan District Co-patentee before: Chen Sujuan Patentee before: Shanghai and Superconducting Transformer Co. Ltd. |
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