CN207743029U - A kind of quadripartion photovoltaic energy storage transformer - Google Patents
A kind of quadripartion photovoltaic energy storage transformer Download PDFInfo
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- CN207743029U CN207743029U CN201721340380.9U CN201721340380U CN207743029U CN 207743029 U CN207743029 U CN 207743029U CN 201721340380 U CN201721340380 U CN 201721340380U CN 207743029 U CN207743029 U CN 207743029U
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- low pressure
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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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Abstract
The utility model discloses a kind of quadripartion photovoltaic energy storage transformers, it is characterized in that, including iron core, it is wound on low pressure winding and high-voltage winding on the iron core successively from inside to outside, the low pressure winding includes the first low pressure winding, the second low pressure winding, third low pressure winding and the 4th low pressure winding being axially arranged in order along iron core, the high-voltage winding includes the first high-voltage winding and the second high-voltage winding along iron core axial alignment, and first high-voltage winding is in parallel with second high-voltage winding.
Description
Technical field
The utility model belongs to transformer technology field, and in particular to a kind of Split type winding transformation of photovoltaic energy storage
Device.
Background technology
Split type winding transformer refers to every phase by a high-voltage winding and two or more voltages and capacity all same
The Multiple coil power transformer that low pressure winding is constituted.Transformer with split winding normal electric energy transmission only between high and low pressure winding into
Row, and then have the function of limiting short-circuit current in failure.The several branching capabilities of Split type winding transformer are identical, specified electricity
It presses equal or close, can undertake identical or different load with isolated operation or parallel running.When in some low pressure winding
When the load or power failure that are connected, remaining low pressure winding remains to normal operation.There is no electricity between each division winding
Contact, the coupling of magnetic are also relatively weak.
Currently, in photovoltaic energy storage industry, with increasing for some large-scale power stations, become using double divisions if System relays are continuous
Depressor, then the quantity of transformer, switchgear and cable will increase in system, cause system to connect in power stations more than hundred MW class
Line form is very complicated, while also increasing fault point, civilwork engineering quantity, extends construction period.
Utility model content
Problem makes improvements the utility model in view of the prior art, i.e., the technical problem to be solved is that carry for utility model
For a kind of quadripartion photovoltaic energy storage transformer, have the characteristics that equipment amount is small, wiring is simple.
In view of the above technical problems, technical solution provided by the utility model is：
A kind of quadripartion photovoltaic energy storage transformer, including iron core, the low pressure that is wound on successively from inside to outside on the iron core
Winding and high-voltage winding, the low pressure winding include the first low pressure winding being axially arranged in order along iron core, the second low pressure winding,
Third low pressure winding and the 4th low pressure winding, the high-voltage winding include the first high-voltage winding and along iron core axial alignment
Two high-voltage windings, first high-voltage winding are in parallel with second high-voltage winding.
Further, first low pressure winding includes tap a1, x1, and second low pressure winding includes tap a2, x2, institute
It includes tap a3, x3 to state third low pressure winding, and the 4th low pressure winding includes tap a4, x4.
Further, the tap of all low pressure windings is multilayer soft copper foil matter, and tap a1, x1 is from first low pressure
Winding upper end is drawn, and tap a2, x2 is affixed on the inner or outer side of first low pressure winding from first low pressure winding
Upper end is drawn, and tap a3, x3 is affixed on the inner or outer side of the 4th low pressure winding from the 4th low pressure winding lower end
It draws, tap a4, x4 is drawn from the 4th low pressure winding lower end.
Further, the high-voltage winding is equipped with pressure regulation connector.
The technique effect of the utility model has：
1, low-pressure side is being designed as axial quadripartion structure, the effective length dimension for reducing transformer reduces product
Overall volume.When using four low-voltage coil axial direction arranged in co-axial alignment, high-tension coil uses upper-lower section parallel-connection structure, can meet
Each coil in four low-voltage coils to high-tension coil partly to pass through impedance equalization consistent, also had using such arrangement
There are four the advantage that the division impedance ratio between low-voltage coil is larger, satisfaction ought wherein any one, two, three low-voltage coils
When short circuit or maintenance down, very little is influenced on other windings, other windings can normal operation.
2, the tap using multilayer soft copper foil as low pressure winding, the first low pressure winding and the second low pressure winding are logical from upper end
The outlet nearby of soft copper foil is crossed, third low pressure winding and the 4th pressure winding cross the outlet nearby of soft copper foil from lower end, have tap outlet
Easily implement, the feature that wiring is simple, safe.
3, high-tension coil is located on the outside of low-voltage coil, is tapped convenient for arrangement pressure regulation connector, setting pressure regulation.
Description of the drawings
Fig. 1 is quadripartion photovoltaic energy storage transformer schematic diagram provided by the utility model.
Fig. 2 is quadripartion photovoltaic energy storage transformer outline drawing provided by the utility model.
Specific implementation mode
It is described below for disclosing the utility model so that those skilled in the art can realize the utility model.It retouches below
Preferred embodiment in stating is only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.
In order to describe conveniently, hereinafter so-called "upper" "lower" is consistent with the "upper" "lower" direction of attached drawing itself, but not right
The structure of the utility model plays restriction effect.Such as transformer can be horizontally mounted or upside-down mounting.
As shown in Figure 1, the present embodiment provides a kind of quabernary fission depressor, including iron core 7, it is wound on respectively on the iron core
Low pressure winding and high-voltage winding, the low pressure winding is split into four, is followed successively by the first low pressure winding 1, second from top to bottom
Low pressure winding 2, third low pressure winding 3 and the 4th low pressure winding 4.First low pressure winding 1, the second low pressure winding 2, third
Mutual insulating between low pressure winding 3 and the 4th low pressure winding 4, and electrically mutual indepedent.
High-voltage winding is around on the outside of low pressure winding comprising the first high-voltage winding 5 and the second high-voltage winding 6, described first
High-voltage winding 5 and the second high-voltage winding 6 are successively along the axial alignment of iron core 7, and the first high-voltage winding 5 and the second high-voltage winding 6
It is in parallel.
Four windings are adjacent and successively along the axial alignment of the iron core.That is the first low pressure winding 1, the second low pressure around
Group 2, third low pressure winding 3 and the 4th low pressure winding 4 constitute the division of low pressure winding in the axial direction.
High-voltage winding includes tap A, X, and the first low pressure winding 1 includes tap a1, x1, and the second low pressure winding 2 includes tap
A2, x2, third low pressure winding 3 include tap a3, x3, and the 4th low pressure winding 4 includes tap a4, x4.The pumping of all low pressure windings
Head is multilayer soft copper foil matter, and tap a1, x1 is drawn from first low pressure winding upper end, and tap a2, x2 is affixed on the first low pressure
The inner or outer side of winding is drawn from the first low pressure winding upper end, and tap a3, x3 is affixed on the inner or outer side of the 4th low pressure winding
It is drawn from the 4th low pressure winding lower end, tap a4, x4 is drawn from the 4th low pressure winding lower end.In the present embodiment, tap a2 is from
The inside of one low pressure winding 1, tap x2 are from the outside of the first low pressure winding 1, and final tap a2, x2 is from the first low pressure winding upper end
It draws.The connection type of tap a3, x3 is similar with tap a2, x2, and which is not described herein again.
In the embodiment of the present invention, foil can be used around line also can be used around four low pressure windings can be with circle in four low pressure windings
Number is identical, size is identical, capacity is identical, also can the number of turns difference, size difference, capacity difference.
In view of the fluctuation of network voltage, so general be arranged pressure regulation tap all on transformer high-voltage coil, with suitable
The fluctuation of power grid is answered, when three coils of high pressure make star or delta connection, it is also desirable to outside lead, if high-tension coil
Built-in, then lead is difficult to arrange, tap is also blocked by low-voltage coil, does not realize the function of pressure regulation.As shown in Fig. 2, high pressure
Coil realizes the outside lead of delta connection, and the small circle on each high-tension coil is pressure regulation connector 8, if high-tension coil
It is built-in, it is clear that just to be blocked by the low-voltage coil of outside.
Quabernary fission depressor in above-described embodiment can reduce iron core center using four low-voltage coil arranged in co-axial alignment
Away from the effective length dimension for reducing transformer reduces the overall volume of product.When using the axial coaxial row of four low-voltage coils
When row, high-tension coil uses upper-lower section parallel-connection structure, can meet each coil in four low-voltage coils to high-tension coil
It partly passes through that impedance equalization is consistent, also has that there are four larger excellent of the division impedance ratio between low-voltage coil using such arrangement
Point, meet when wherein any one, two, three low-voltage coils short circuit or when maintenance down, very little is influenced on other windings,
Other windings can normal operation.In addition, axial split structure have the characteristics that it is simple, be easy to make.
Quabernary fission depressor in above-described embodiment, tap a1, x1 of the first low pressure winding 1 and the second low pressure winding 2
Tap a2, x2 is drawn in 7 upper axial end of iron core by soft copper bar；Tap a3, x3 and the 4th low pressure winding of third low pressure winding 3
4 tap a4, x4 is drawn in 7 lower axial end of iron core by soft copper bar.That is the first low pressure around 1 and second low pressure winding 2 from upper end
By soft copper bar outlet nearby, the low winding 3 and the 4th of third presses winding 4 to cross soft copper bar outlet nearby from lower end.So that low pressure around
The tap outlet of group is also easily implemented, and wiring is simple, safe.
The technology contents of the not detailed description of the utility model are known technology.
Basic principles, main features, and advantages of the present invention has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model the utility model also have respectively
Kind changes and improvements, these changes and improvements are both fallen in claimed the scope of the utility model.The guarantor of the utility model
Shield range is defined by appended claims and its equivalent.
Claims (4)
1. a kind of quadripartion photovoltaic energy storage transformer, which is characterized in that including iron core, be wound on the iron core successively from inside to outside
On low pressure winding and high-voltage winding, the low pressure winding includes the first low pressure winding being axially arranged in order along iron core, second
Low pressure winding, third low pressure winding and the 4th low pressure winding, the high-voltage winding include along the first high of iron core axial alignment
Press winding and the second high-voltage winding, first high-voltage winding in parallel with second high-voltage winding.
2. quadripartion photovoltaic energy storage transformer according to claim 1, which is characterized in that first low pressure winding includes
Tap a1, x1, second low pressure winding includes tap a2, x2, and the third low pressure winding includes tap a3, x3, and described
Four low pressure windings include tap a4, x4.
3. quadripartion photovoltaic energy storage transformer according to claim 2, which is characterized in that the tap of all low pressure windings is
Multilayer soft copper foil matter, tap a1, x1 are drawn from first low pressure winding upper end, and tap a2, x2 is affixed on described
The inner or outer side of first low pressure winding is drawn from first low pressure winding upper end, and tap a3, x3 is affixed on the described 4th
The inner or outer side of low pressure winding is drawn from the 4th low pressure winding lower end, tap a4, x4 from the 4th low pressure around
It draws group lower end.
4. quadripartion photovoltaic energy storage transformer according to claim 2, which is characterized in that the high-voltage winding, which is equipped with, to be adjusted
Crimp head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721340380.9U CN207743029U (en) | 2017-10-18 | 2017-10-18 | A kind of quadripartion photovoltaic energy storage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721340380.9U CN207743029U (en) | 2017-10-18 | 2017-10-18 | A kind of quadripartion photovoltaic energy storage transformer |
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| Publication Number | Publication Date |
|---|---|
| CN207743029U true CN207743029U (en) | 2018-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721340380.9U Active CN207743029U (en) | 2017-10-18 | 2017-10-18 | A kind of quadripartion photovoltaic energy storage transformer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112185663A (en) * | 2020-09-30 | 2021-01-05 | 中电电气(江苏)变压器制造有限公司 | Low-voltage coil four-way voltage output structure |
| EP3979273A1 (en) * | 2020-09-30 | 2022-04-06 | Hitachi Energy Switzerland AG | Split winding assembly for a transformer |
| CN115240961A (en) * | 2022-09-23 | 2022-10-25 | 上海电气集团(张家港)变压器有限公司 | Outgoing line structure of low-voltage winding of resin insulation dry type transformer and transformer |
-
2017
- 2017-10-18 CN CN201721340380.9U patent/CN207743029U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112185663A (en) * | 2020-09-30 | 2021-01-05 | 中电电气(江苏)变压器制造有限公司 | Low-voltage coil four-way voltage output structure |
| EP3979273A1 (en) * | 2020-09-30 | 2022-04-06 | Hitachi Energy Switzerland AG | Split winding assembly for a transformer |
| CN115240961A (en) * | 2022-09-23 | 2022-10-25 | 上海电气集团(张家港)变压器有限公司 | Outgoing line structure of low-voltage winding of resin insulation dry type transformer and transformer |
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