CN103956256B - A kind of Transformer Winding arrangement - Google Patents
A kind of Transformer Winding arrangement Download PDFInfo
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- CN103956256B CN103956256B CN201410178857.2A CN201410178857A CN103956256B CN 103956256 B CN103956256 B CN 103956256B CN 201410178857 A CN201410178857 A CN 201410178857A CN 103956256 B CN103956256 B CN 103956256B
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Abstract
The present invention be more particularly directed to a kind of Transformer Winding arrangement.This Transformer Winding relative position in device body, including iron core, iron core is outer sets gradually tap-changing windings, interior winding, outer winding, fuel tank from the inside to the outside；The relative altitude difference △ H of the inside and outside winding of this transformator meets: 0 < △ H≤‑, and interior winding reactance is highly higher than outer winding reactance height.Disclosed in this invention this can equalize winding temperature rise, the Transformer Winding relative altitude method for designing of short circuit mechanical force, be optimize winding construction design, cost-effective, improve one of product reliability and safety and the effective measures ensureing the product life cycle.It is useful in the application in 35kV and above AC power transformer and the design of converter power transformer winding construction.
Description
(1) technical field
The present invention relates to a pair Transformer Winding arrangement, particularly to the winding the highest, outer of winding reactance in one
The Transformer Winding arrangement that reactance is the lowest.
(2) background technology
Present stage, along with high pressure, supertension, the development of Large Copacity AC/DC Power System, power consumer is to transformator
Reliability and service life have higher requirement；Transformator eddy-current loss and short-circuit electromotive force need to be carried out quantitative analysis meter
Calculate, it is achieved temperature rise of hot spot and the equilibrium of short-circuit electromotive force on every winding, be the basis of Optimum Design of Transformers, reliable in quality.
In the past, during design of transformer, the calculating to its eddy-current loss and short-circuit electromotive force is usually based on empirical equation.
It is known that this empirical equation is to derive based under certain hypothesis and equivalence；The more important thing is that it have ignored transformation
The boundary conditions pair such as device iron core principal post, other post, arm-tie, folder web, folder limb plate, limb plate magnetic shunt path, drawstring, iron yoke, casing
The impact that Transformer Winding brow leakage is logical.Lack coiling hotspot temperature rise and short-circuit electromotive force assisted design verification or measurement simultaneously
Instrument, only the whole winding temperature rise of transformator is high, burn out, unstability, just know that transformer winding structure sets after mechanically deform
Count not reasonable；The most form the general layout of " mending the fold after the sheep is lost, late ".To transformer production producer at manufacture, delivery, warp
The aspects such as Ji property, the marketing bring tremendous influence.
(3) summary of the invention
The present invention is in order to make up the deficiencies in the prior art, it is provided that a kind of can equalize winding temperature rise, short circuit mechanical force change
Depressor winding arrangement, this Transformer Winding arrangement have employed the winding reactance mentality of designing such as the most not, be optimize around
Group structure design, cost-effective, raising product reliability and one of safety and the effective measures ensureing the product life cycle.
The present invention is achieved through the following technical solutions:
A kind of Transformer Winding arrangement, including iron core, unshakable in one's determination outer set gradually from the inside to the outside tap-changing windings, interior around
Group, outer winding, fuel tank, its be characterized in that the inside and outside winding of this transformator relative altitude difference △ H meet: 0 < △ H≤-, its winding reactance height difference computing formula:
Wherein, in formula:Main empty path size,；
The radial width of interior winding,；
The radial width of outer winding,；
Main empty path mean radius,；
Interior winding reactance height,；
Outer winding reactance height,；
Circumscribed circle diameter unshakable in one's determination,.
The Transformer Winding arrangement of the present invention, two ends up and down unshakable in one's determination are respectively provided with folder web, upper clamping piece web
Below be welded with upper limb plate, be arranged above with device body positioner, at the lower surface of upper limb plate, be provided with magnetic shunt path, lower clamping piece web
It is welded with lower limb plate, oil guiding box installed below above, magnetic shunt path, upper limb plate, lower limb plate and folder are set at the upper surface of this lower limb plate
Being equipped with reinforcement ferrum between part web, tap-changing windings, interior winding, outer winding are respectively positioned between two magnetic shunt paths.The design transformator
Principal post unshakable in one's determination, other post, iron yoke, arm-tie, folder web, folder limb plate, limb plate magnetic shunt path, drawstring, casing etc. constitute leakage magnetic flux
Boundary condition, these group material behavior of parts and its leakage magnetic flux magnetic circuits etc. formed, be to determine Transformer Winding end
The principal element of portion's stray flux distribution rule；Based on above-mentioned influence factor, if inside and outside winding reactance is the most equal, interior winding terminal
Relatively big and the magnetic line of force the radius of curvature of the horizontal leakage magnetic flux in portion is less, and the horizontal leakage magnetic flux of outer winding overhang is less and magnetic force curvature of a curve
Radius is bigger, and then makes the eddy-current loss of interior winding overhang and short-circuit electromotive force big compared with outer winding.In order to solve this skill
An art difficult problem, the winding utilizing company to sum up for many years has carried out detailed calculating relative to reactance high computational empirical equation；Simultaneously
Utilize MagNet business magnetic field analysis software, establish three-dimensional leakage magnetic field model, the brow leakage regularity of distribution is carried out
Simulating, verifying is analyzed.Determine the design that interior winding reactance winding reactance the highest, outer is the lowest, lead in combination with winding
Line line scale cun, paper bag thickness, vertically and horizontally oil duct size and the number of turn etc. of every cake wire；Reasonably determine inside and outside winding electricity
Anti-height difference △ H(△ H general control 0 < △ H≤(-Between)).
A kind of method of height difference determining inside and outside winding according to above-mentioned Transformer Winding arrangement, it is special
Part is: comprise the following steps:
(1) first according to the concrete technical parameter of product, the average reactance of a pair inside and outside winding of Preliminary design transformator is high
Degree；
(2) utilize winding reactance height difference computing formula, calculate the reactance height of inside and outside winding；
(3) utilize MagNet business magnetic field analysis software, establish stray field three-dimensional simulation model, to brow leakage
The regularity of distribution has carried out simulation analysis；
(4) winding conducting wire line scale cun, paper bag thickness, vertically and horizontally oil duct size and the number of turn of every cake wire are combined；Device body
Oil flow distribution situation and winding temperature rise result of calculation；Short-circuit electromotive force result of calculation；Winding heat stability result of calculation；Interior winding
Unstability check results；Finally determine height difference △ H, the △ H of inside and outside winding control 0 < △ H≤(-Between).
The design relates to the design of a pair Transformer Winding relative altitude, the highest particularly to winding reactance in one,
The machine body structure that outer winding reactance is the lowest；The winding overhang imbalance ampere-turn utilizing the difference of winding height to be determined produces
The radial leakage magnetic flux of winding, suppresses due to the impact of the radial leakage field in stray transformer flux field boundary condition opposing connection group end, finally real
Show generation eddy-current loss, the equilibrium of short-circuit electromotive force on each winding；Optimization design further to transformator has important
Reference value.
The invention has the beneficial effects as follows: the invention provides a kind of can equalize winding temperature rise, short circuit mechanical force transformator
Winding relative altitude method for designing, is to optimize winding construction design, cost-effective, raising product reliability and safety and guarantee
One of effective measures of product life cycle.It is useful in 35kV and above AC power transformer and converter power transformer winding construction
Application in design.
(4) accompanying drawing explanation
The present invention is further illustrated below in conjunction with the accompanying drawings.
Accompanying drawing 1 is traditional transformer winding relative altitude design drawing；
Accompanying drawing 2 is the design Transformer Winding relative altitude design drawing；
In figure: 1 is unshakable in one's determination, winding in 2,3 outer windings, 4 tap-changing windings, 5 fuel tanks, 6 folder webs, 7 upper limb plates, 8 lower limb plates,
9 magnetic shunt paths, 10 strengthen ferrum, 11 oil guiding box, 12 device body positioners.
(5) detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention.This embodiment include unshakable in one's determination 1, interior winding 2, outer winding 3, pressure regulation around
Group 4 and fuel tank 5.Tap-changing windings 4, interior winding 2, outer winding 3, fuel tank 5 is set gradually from the inside to the outside outside unshakable in one's determination 1, in this transformator,
The relative altitude difference △ H of outer winding 2,3 meets: 0 < △ H≤-, its winding reactance height difference computing formula:
Wherein, in formula:Main empty path size,；
The radial width of interior winding,；
The radial width of outer winding,；
Main empty path mean radius,；
Interior winding reactance height,；
Outer winding reactance height,；
Circumscribed circle diameter unshakable in one's determination,.
The Transformer Winding arrangement of the present invention, the two ends up and down of unshakable in one's determination 1 are respectively provided with folder web 6, upper clamping piece abdomen
It is welded with upper limb plate 7 below plate 6, is arranged above with device body positioner 12, at the lower surface of upper limb plate 7, be provided with magnetic shunt path 9, lower folder
The above lower limb plate 8 that is welded with of part web 6, oil guiding box 11 installed below, magnetic shunt path 9, upper limb are set at the upper surface of this lower limb plate 8
Being equipped with reinforcement ferrum 10 between plate 7, lower limb plate 8 and folder web 6, tap-changing windings 4, interior winding 2, outer winding 3 are respectively positioned on two magnetic
Between branch 9.In traditional transformer winding, interior winding 2, outer winding 3, tap-changing windings 4 are the most identical.
The design transformer core 1 principal post, other post, iron yoke, arm-tie, folder web 6, folder limb plate, limb plate magnetic shunt path, draw
Band, casing etc. constitute the boundary condition of leakage magnetic flux, the material behavior of these group parts and its leakage magnetic flux magnetic circuit formed
Deng, it is to determine the principal element that Transformer Winding brow leakage leads to the regularity of distribution；Based on above-mentioned influence factor, if inside and outside winding
2,3 reactance are the most equal, and relatively big and the magnetic line of force the radius of curvature of interior winding 2 end cross leakage magnetic flux is less, and outer winding 3 end is horizontal
Less to leakage magnetic flux and the magnetic line of force radius of curvature is bigger, and then makes the eddy-current loss of interior winding 2 end and short circuit electronic
Power is big compared with outer winding.In order to solve this technical barrier, utilize the winding that company sums up for many years relative to reactance high computational warp
Test formula and carry out detailed calculating；Utilize MagNet business magnetic field analysis software simultaneously, establish three-dimensional leakage magnetic field model, right
The brow leakage regularity of distribution has carried out simulating, verifying analysis.Finally determine the height difference △ H of inside and outside winding 2,3: its
Thinking is, first according to the concrete technical parameter of product, and the average reactance height of Preliminary design a pair winding of transformator.Secondly utilize
Company's winding reactance height difference empirical formula 1, calculates the reactance height of inside and outside winding.Followed by MagNet business
Industry magnetic field analysis software, sets up stray field three-dimensional simulation model, and the brow leakage regularity of distribution is carried out simulation analysis.Finally
In conjunction with winding conducting wire line scale cun, paper bag thickness, vertically and horizontally oil duct size and the number of turn of every cake wire；Device body Oil flow distribution situation
With winding temperature rise result of calculation；Short-circuit electromotive force result of calculation；Winding heat stability result of calculation；Interior winding unstability verification knot
Really；Finally determine the height difference △ H(△ H general control of inside and outside winding 0 < △ H≤(-Between)).
The design is a pair Transformer Winding relative altitude design, and it provides the benefit that, it is provided that one can equalize winding
The Transformer Winding relative altitude method for designing of temperature rise, short circuit mechanical force etc., is to optimize winding arrangement to design, save into
Originally one of product reliability and safety and the effective measures ensureing the product life cycle, are improved.It is useful in 35kV and to submit
Application on stream power transformer and the design of converter power transformer winding arrangement.
Claims (2)
1. a Transformer Winding arrangement, including iron core, the outer tap-changing windings, interior winding, outer of setting gradually from the inside to the outside unshakable in one's determination
Winding, fuel tank, it is characterised in that: the height difference △ H of the inside and outside winding that transformator finally determines meets: 0 < △ H≤-, the height difference computing formula of the inside and outside winding that its primary Calculation obtains:
Wherein, in formula:Main empty path size,；
The radial width of interior winding,；
The radial width of outer winding,；
Main empty path mean radius,；
Interior winding reactance height,；
Outer winding reactance height,；
Circumscribed circle diameter unshakable in one's determination,
Described Transformer Winding arrangement, the method determining the height difference of inside and outside winding, comprise the following steps:
(1) first according to the concrete technical parameter of product, the average reactance height of a pair inside and outside winding of Preliminary design transformator；
(2) utilize the height difference computing formula of the inside and outside winding that primary Calculation obtains, calculate that primary Calculation obtains interior,
The height difference of outer winding；
(3) utilize MagNet business magnetic field analysis software, establish stray field three-dimensional simulation model, brow leakage is distributed
Rule has carried out simulation analysis；
(4) winding conducting wire line scale cun, paper bag thickness, vertically and horizontally oil duct size and the number of turn of every cake wire are combined；Device body oil stream
Distribution situation and winding temperature rise result of calculation；Short-circuit electromotive force result of calculation；Winding heat stability result of calculation；Interior winding unstability
Check results；Finally determine height difference △ H, the △ H of inside and outside winding control 0 < △ H≤(-Between).
Transformer Winding arrangement the most according to claim 1, it is characterised in that: two ends up and down unshakable in one's determination are respectively provided with
Folder web, is welded with upper limb plate below upper clamping piece web, be arranged above with device body positioner, be provided with at the lower surface of upper limb plate
Magnetic shunt path, the above lower limb plate that is welded with of lower clamping piece web, oil guiding box installed below, at the upper surface of this lower limb plate, magnetic is set and divides
Road, is equipped with reinforcement ferrum between upper limb plate, lower limb plate and folder web, tap-changing windings, interior winding, outer winding are respectively positioned on two magnetic and divide
Between road.
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| CN201410178857.2A CN103956256B (en) | 2014-04-30 | 2014-04-30 | A kind of Transformer Winding arrangement |
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| CN201410178857.2A CN103956256B (en) | 2014-04-30 | 2014-04-30 | A kind of Transformer Winding arrangement |
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| CN103956256B true CN103956256B (en) | 2016-09-28 |
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| DE102016206947A1 (en) * | 2016-04-25 | 2017-10-26 | Siemens Aktiengesellschaft | Electrical high-voltage device with a control winding group |
| CN112560335B (en) * | 2020-12-02 | 2022-11-22 | 西南交通大学 | Multi-objective and structural parameter comprehensive optimization design method for transformer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201556516U (en) * | 2009-11-20 | 2010-08-18 | 广西柳州特种变压器有限责任公司 | High and low voltage coil structure of high voltage transformer |
| CN201976061U (en) * | 2011-02-23 | 2011-09-14 | 中国西电电气股份有限公司 | Voltage regulating structure of converter transformer |
| CN202183298U (en) * | 2011-08-24 | 2012-04-04 | 中国西电电气股份有限公司 | Winding structure for power transformer |
| CN202816595U (en) * | 2012-07-24 | 2013-03-20 | 江苏天翔变压器有限公司 | High-insulation transformer |
| CN203338958U (en) * | 2013-07-14 | 2013-12-11 | 陈小磊 | Adjustable variable transformer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3327001B2 (en) * | 1994-08-11 | 2002-09-24 | 株式会社明電舎 | Transformer cylindrical winding and its manufacturing method |
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- 2014-04-30 CN CN201410178857.2A patent/CN103956256B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201556516U (en) * | 2009-11-20 | 2010-08-18 | 广西柳州特种变压器有限责任公司 | High and low voltage coil structure of high voltage transformer |
| CN201976061U (en) * | 2011-02-23 | 2011-09-14 | 中国西电电气股份有限公司 | Voltage regulating structure of converter transformer |
| CN202183298U (en) * | 2011-08-24 | 2012-04-04 | 中国西电电气股份有限公司 | Winding structure for power transformer |
| CN202816595U (en) * | 2012-07-24 | 2013-03-20 | 江苏天翔变压器有限公司 | High-insulation transformer |
| CN203338958U (en) * | 2013-07-14 | 2013-12-11 | 陈小磊 | Adjustable variable transformer |
Non-Patent Citations (1)
| Title |
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| 大型变压器绕组结构对漏磁场及短路电动力的影响;李英等;《变压器》;20000325;第37卷(第03期);7-10 * |
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