CN206134444U - Transformer is used to wind -powered electricity generation field - Google Patents
Transformer is used to wind -powered electricity generation field Download PDFInfo
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- CN206134444U CN206134444U CN201621177552.0U CN201621177552U CN206134444U CN 206134444 U CN206134444 U CN 206134444U CN 201621177552 U CN201621177552 U CN 201621177552U CN 206134444 U CN206134444 U CN 206134444U
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Abstract
The utility model discloses a transformer is used to wind -powered electricity generation field, include and overlap in proper order and establish low voltage winding and the high voltage winding on the iron core that low voltage winding is provided with the two structures of the self -healing that restraines lightning wave and zero sequence magnetic potential unshakable in one's determination, be provided with the double -shielded structure in the high voltage winding, the parallelly connected surge electric capacity that has absorption transition surge and lightning impulse of high voltage winding. The utility model discloses low voltage winding's self -healing two and structure, high voltage winding's shielding structure and the performances of antisurge and suppressing lightning shock wave that parallelly connected surge electric capacity has improved transformer is used to wind -powered electricity generation field improve transformer is used to wind -powered electricity generation field's life, improve wind electrical transformer the reliability, reduce user's running cost, avoid having better economic and social benefits because of a large amount of economic loss that transformer equipment trouble made the wind -powered electricity generation field " abandon wind " and bring.
Description
Technical field
This utility model is related to field transformer, the more particularly to high wind energy turbine set transformation of a kind of safe and reliable and cost performance
Device.
Background technology
Phase at the beginning of the seventies in last century, due to " oil crisis ", energy-intensive problem is occurred in that, people recognize conventional ore deposit
The unstability and finiteness of thing energy supply, the regenerative resource for then seeking to clean become then one of Modern World it is important
Problem.Wind energy causes people's attention again as reproducible, free of contamination natural energy resources.
China's wind-power electricity generation installed capacity also comes out at the top in the world.With installed capacity of wind-driven power expanding day, phase therewith
The supporting transformator for wind energy turbine set also will be manufactured in a large number.Due to there is unstable wind speed in wind energy turbine set to wind power equipment
Bring the high frequency overvoltage of repetition, the overvoltage of low-pressure side and containing higher hamonic wave, the transient over-voltage opened or produce when closing with
The factors such as surge, lightning impulse.There is these more risk factor and failure in wind energy turbine set, by traditional wind energy turbine set transformator
Reliability level cannot meet the requirement of wind-powered electricity generation.
According to related wind-powered electricity generation data statisticss, national wind-powered electricity generation is declined using hourage within 2013, wherein wind-powered electricity generation " abandon wind "
Amount annual loss quenched 24,000,000,000, wherein because of equipment fault " abandon wind " 1/3 is accounted for, year is lost up to 8,000,000,000 yuan, because " abandon wind " annual economical
Loss accounts for the gross investment more than 1/6 of the wind energy turbine set, has had a strong impact on wind energy turbine set sustainable development and normal operation.Therefore it is badly in need of setting
The transformator of suitable wind energy turbine set is counted out, to reduce impact of the unsteady wind electric field to potential device.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art to provide a kind of wind energy turbine set transformator.
In order to achieve the above object, the technical scheme of employing is as follows：A kind of wind energy turbine set transformator, including it is unshakable in one's determination and according to
The secondary low pressure winding being set on iron core and high pressure winding, the low pressure winding be provided with suppress lightning wave and zero sequence magnetic potential from
More double and structure；Double shield structure is provided with the high pressure winding, the high pressure winding is parallel with absorption transition surge and thunder
The surge electric capacity of surge ripple.
Scheme is expanded on further, the low pressure winding forms the double simultaneously structures of spontaneous recovery using the Zigzag types mode of connection, described
Spontaneous recovery is double and structure by two paper tinsels and the insulant being placed between paper tinsel with one heart and around forming.
Scheme is expanded on further, the double shield structure includes the double shield layer being distributed between high-voltage winding layer, institute
The base material for stating screen layer is foam metal absorbing material.
Scheme is expanded on further, the screen layer is coated with insulant, and the screen layer is independently electrically connected with ground wire.
Scheme is expanded on further, the surge electric capacity is arranged on the inside of high pressure winding, the surge electric capacity and ground wire independence
Electrical connection.
This utility model beneficial effect is：The spontaneous recovery of low pressure winding is double and structure, the shielding construction of high pressure winding and
Surge electric capacity in parallel improves the performance of the antisurge and lightning impulse resistant ripple of wind energy turbine set transformator, improves wind energy turbine set and becomes
The service life of depressor, improves the reliability of wind power transformer, reduces user's operating cost, it is to avoid because transformer equipment failure makes
A large amount of economic losses that wind energy turbine set " abandoning wind " is brought, with preferable economic and social benefits.
Description of the drawings
Fig. 1 is low pressure winding winding structure schematic diagram of the present utility model.
Fig. 2 is outlet wire of low voltage winding structural representation of the present utility model.
Fig. 3 is low pressure winding coil connecting structure schematic diagram of the present utility model.
Fig. 4 is this utility model low pressure winding thunderbolt surge self-healed protection schematic diagram（In figure, LI is lightning surge
Impact direction）.
Fig. 5 is this utility model high-voltage winding structure and shielding schematic diagram.
Drawing reference numeral explanation：1st, it is unshakable in one's determination；2nd, low pressure winding；21st, a phases low pressure winding；22nd, b phases low pressure winding；23rd, c phases are low
Pressure winding；3rd, high pressure winding；31st, the first high-tension coil；32nd, the second high-tension coil；41st, paper tinsel；42nd, insulant；5th, surge electricity
Hold；61st, first screen layer；62nd, secondary shielding layer.
Specific embodiment
1 to accompanying drawing 5 introduces a kind of specific embodiment of the present utility model below in conjunction with the accompanying drawings.
A kind of wind energy turbine set transformator, including iron core 1 and the low pressure winding 2 being sequentially sleeved on unshakable in one's determination 1 and high voltage winding
Group 3, low pressure winding 2 are provided with and suppress the spontaneous recovery of lightning wave and zero sequence magnetic potential double and structure；Shielding knot is provided with high pressure winding 3
Structure, high pressure winding 3 are parallel with the surge electric capacity 5 for absorbing transition surge and lightning surge.3 points of high pressure winding is upper and lower first high
Line ball circle 31 and the second high-tension coil 32.
Wherein, as in Figure 2-4, low pressure winding 2 adopts Zigzag types（Z-type）The mode of connection forms the double simultaneously structures of spontaneous recovery
（The mode of connection as shown in Figure 3）, Zigzag types（Z-type）The mode of connection is different from traditional low pressure star connection structure, spontaneous recovery
Double and structure in lightning impulse can crest mutually cut（As shown in figure 4, LI is Lightning Impulse lightning surges in figure
Impact direction）, low pressure winding 2 be hit after can self-healed protection and it is without damage.Paper tinsel 41 and paper tinsel of the low pressure winding 2 by two-layer
Insulant 42 between 41 is with concentric circular and around formation（As shown in Figure 1）, insulant 42 is insulating paper, and paper tinsel 41 led for copper
Thread paper tinsel.
Wherein, as shown in Figure 2,3, three low pressure windings 2 of three-phase transformer, a1 and a2 in a phases low pressure winding 21, x1 and
X2 is respectively a head and tail head of same coil, and in b phases low pressure winding 22, b1 and b2, y1 and y2 are respectively starting for same coil
With tail head；In c phases low pressure winding 23, c1 and c2, z1 and z2 respectively same coil plays head and tail head；Low pressure winding 2
Zigzag types（Z-type）The mode of connection is：X1 and y2 connections, x2 and z1 connections, y1 and z2 connections, a2, b2, c2 three connect together
On zero line.
Wherein, as shown in figure 4, double shield structure includes 61 He of first screen layer for being distributed in 3 interlayer of high pressure winding
The base material of secondary shielding layer 62, first screen layer 61 and secondary shielding layer 62 is foam metal absorbing material and is coated with compound
Insulant, first screen layer 61 and secondary shielding layer 62 are independently electrically connected with ground wire respectively, and first screen layer 61 arranges high pressure
Winding 3 is arranged at 2/3rds numbers of plies of high pressure winding 3 near the side of surge electric capacity 5, secondary shielding layer 62.Double shield is tied
Structure is maskable and can effectively absorb substantial amounts of higher hamonic wave, and two-layer screen layer inhales ripple respectively, and independently ground connection does not interfere with each other.It is high
When in pressure winding 3, any layer receives high-frequency impulse and lightning impulse, higher harmonic current can be by adjacent shields layer individually directly
The earth is imported, avoids continuing deferred infringement to other layers.
Wherein, as shown in figure 4, surge electric capacity 5 is arranged between high pressure winding 3 and low pressure winding 2, surge electric capacity 5 and ground
Line is individually electrically connected, structure of the high pressure winding 3 using the impact of anti-high-frequency impulse, is arranged in parallel the surge electricity on high pressure winding 3
Hold 5, its capacitance is about 800-2200PF, tolerate crest voltage 200KV-220KV, safely and reliably receive surge and thunder and lightning
Shock wave current potential.
This utility model, for there are problems in Wind turbine, emphasis solves puzzlement transformer manufacturing factory and sets for many years
Received shipment row multiple malfunctions, dissolve the risk that wind-powered electricity generation becomes all kinds of operations under Special complex operating mode, and become what is existed to existing wind-powered electricity generation
Some defects carry out essential improvement, improve the performance of the antisurge and lightning impulse resistant ripple of wind energy turbine set transformator, improve transformation
The service life of device.
The above is not imposed any restrictions to technical scope of the present utility model, all according to this utility model technology reality
Matter, any modification, equivalent variations and modification that the embodiment to more than is made, still falls within the technical solution of the utility model
In the range of.
Claims (5)
1. a kind of wind energy turbine set transformator, including iron core and the low pressure winding being sequentially sleeved on iron core and high pressure winding, its
It is characterised by：The low pressure winding is provided with and suppresses the spontaneous recovery of lightning wave and zero sequence magnetic potential double and structure；In the high pressure winding
Double shield structure is provided with, the high pressure winding is parallel with the surge electric capacity for absorbing transition surge and lightning surge.
2. a kind of wind energy turbine set transformator according to claim 1, it is characterised in that：The low pressure winding adopts Zigzag
The type mode of connection forms the double simultaneously structures of spontaneous recovery, and the spontaneous recovery is double and structure is concentric by two paper tinsels and the insulant being placed between paper tinsel
And around forming.
3. a kind of wind energy turbine set transformator according to claim 1, it is characterised in that：The double shield structure includes interval
The double shield layer being distributed between high-voltage winding layer, the base material of the screen layer is foam metal absorbing material.
4. a kind of wind energy turbine set transformator according to claim 3, it is characterised in that：The screen layer is coated with insulation material
Material, the screen layer are independently electrically connected with ground wire.
5. a kind of wind energy turbine set transformator according to claim 1, it is characterised in that：The surge electric capacity is arranged on high pressure
On the inside of winding, the surge electric capacity is independently electrically connected with ground wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621177552.0U CN206134444U (en) | 2016-11-03 | 2016-11-03 | Transformer is used to wind -powered electricity generation field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621177552.0U CN206134444U (en) | 2016-11-03 | 2016-11-03 | Transformer is used to wind -powered electricity generation field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206134444U true CN206134444U (en) | 2017-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621177552.0U Active CN206134444U (en) | 2016-11-03 | 2016-11-03 | Transformer is used to wind -powered electricity generation field |
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| Country | Link |
|---|---|
| CN (1) | CN206134444U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806949A (en) * | 2018-06-29 | 2018-11-13 | 常德国力变压器有限公司 | A kind of lightning protection transformer low pressure mixed winding and outlet method |
-
2016
- 2016-11-03 CN CN201621177552.0U patent/CN206134444U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108806949A (en) * | 2018-06-29 | 2018-11-13 | 常德国力变压器有限公司 | A kind of lightning protection transformer low pressure mixed winding and outlet method |
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