CN110444371A - Wire current contrary distribution core type smoothing reactor - Google Patents
Wire current contrary distribution core type smoothing reactor Download PDFInfo
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- CN110444371A CN110444371A CN201910643319.9A CN201910643319A CN110444371A CN 110444371 A CN110444371 A CN 110444371A CN 201910643319 A CN201910643319 A CN 201910643319A CN 110444371 A CN110444371 A CN 110444371A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/08—Cooling; Ventilating
- H01F27/10—Liquid cooling
- H01F27/12—Oil cooling
- H01F27/14—Expansion chambers; Oil conservators; Gas cushions; Arrangements for purifying, drying, or filling
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/28—Coils; Windings; Conductive connections
- H01F27/2823—Wires
- H01F27/2828—Construction of conductive connections, of leads
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/34—Special means for preventing or reducing unwanted electric or magnetic effects, e.g. no-load losses, reactive currents, harmonics, oscillations, leakage fields
- H01F27/36—Electric or magnetic shields or screens
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F38/00—Adaptations of transformers or inductances for specific applications or functions
Abstract
The present invention is high current commutation system smoothing reactor, it is the reactance winding of a smoothing reactor to be resolved into multiple reactance winding elements to replace more reactors, the lead of extraction reactance winding current is grouped two-by-two again, lead is adjacently positioned and the electric current of any two adjacent legs in any moment is all equal in magnitude contrary.The problems such as preferable electromagnetic pollution for solving reactor, lead reactance increase, vortex, at the same energy conservation, cost decline, inductance value output accuracy improve, can more reactors be combined into one, solve electromagnetic pollution, the radiation problem of reactor.Allow operator, equipment, Architectural Services Department around in the working environment of safety.
Description
Technical field
The present invention is a kind of core type smoothing reactor, is also direct current reactor.It is more to be mainly used in six pulse waves or more
In pulse wave rectifier circuit.
Background technique
Smoothing reactor is a kind of inductance element, is divided into open-core type and two kinds of core type.Open-core type smoothing reactor only has
Winding (reactance winding), without iron core, actually an inductance coil, magnetic circuit is air or transformer oil etc., without iron core
Saturated phenomenon, inductance value are constant.The magnetic circuit of core type smoothing reactor is a stem band gap or the not iron core of band gap, iron
The heart is made of magnetic material, and winding (reactance winding), since the magnetic conductivity of magnetic material is more much bigger than air, In are cased with outside stem
Core type is more much bigger than open-core type inductance value under identical parameters, but DC current, more than after certain value, iron core is saturated, under inductance value
Drop.
The purpose of smoothing reactor is connected in the DC line by rectifier power source power supply, smoothing reactor is in direct current power transmission
Smoothing reactor can inhibit the rate of climb of electric current when circuit is broken down, to prevent secondary commutation failure；Reduce DC side
Harmonic pulsation component, become comparatively ideal flat waveform；The continuous of electric current is able to maintain in DC line low current
Property；Inhibit short circuit current；Improve power factor etc..
There is a kind of paralleing reactor in rectification circuit, effect is the commutation for making two groups of voltage-phases different in rectification circuit
Group parallel operation, keeps two commutation group voltages equal, only core type, so it is not smoothing reactor.
The structural shape of smoothing reactor is different with the height of its direct-current working volts, the size of equivalent capacity.With
Oil-immersed hollow formula is often made into and with magnetic cup because voltage is high, equivalent capacity is big in the smoothing reactor of high-voltage direct-current transmission of electricity
It covers, also there is dry type under individual cases, be outdoor installation.The smoothing reactor that transmission, traction, Switching Power Supply etc. use
Equivalent capacity is smaller, and voltage is also low, can be oil immersed type or dry type, and majority is core type.Direct current, which was smelted, in recent years rises, due to
Its low-voltage, high-current, easily short-circuit characteristic, new requirement is had also been proposed to smoothing reactor.
Smoothing reactor is in high power rectification system, especially direct current smelting system, and reactive current is very big, up to tens of thousands of
Peace or tens of Wan An, frequency 150HZ or more, general is mostly 300HZ or 600HZ or more, wherein containing a large amount of higher hamonic wave packet
Include the odd harmonic of each frequency.The characteristics of high-frequency, low-voltage, high current, high leakage field, causes smoothing reactor and leads to load
Lead reactance increase, while lead and outlet terminal and around magnetic conductive media in cause to be vortexed.Vortex and reactance increase
The inductance value of reactor is only allowed to be not allowed, loss increase, this is not also main problem, it is often more important that high-frequency harmonic, high current
The influence of magnetic field and reactance winding leakage field to smoothing reactor itself He neighbouring equipment be it is huge, this is from the point of view of Electro Magnetic Compatibility
Do not allow.Direct current is smelted and the place of the flat wave reactance of application such as chemical industry electrolysis, and CR Critical electromagnetic pollution is to operator
The influence of health is also a potential risk.
Being in cophase counter parallel connection or double cophase counter parallel connection rectifying circuits does not include smoothing reactor.Smoothing reactor is in
Rectifier cabinet and load are intermediate, therefore the technical advantage of cophase counter parallel connection can not play.If cophase counter parallel connection structure is had to every
When one rectification unit requires series connection, every unit is needed to connect one or two smoothing reactors, double cophase counter parallel connections with greater need for
More reactors have foozle and leakage field interference between each reactor, especially between air reactor because mutual inductance need safety away from
From these all bring huge trouble to the arrangement of electrical equipment manufacture, equipment and cophase counter parallel connection lead copper bar, moreover, respectively
The foozle of reactor inductance value causes to form circulation between each rectification unit.
Summary of the invention
Wire current contrary distribution core type smoothing reactor (referred to as novel smoothing reactor), it is characterized in that: 12
In pulse wave rectifier circuit or more circuit, each six pulse wave rectifiers circuit six pulse wave core types that need to connect are flat
Wave reactor resolves into the reactance winding of a core type smoothing reactor corresponding multiple with each six pulse wave rectifiers circuit
Six pulse wave reactance winding elements；
Wherein, the multiple six pulse waves reactance winding element is connected on one by one respectively on the position that the rectification circuit needs；
Wherein, the sum of superposition of magnetic flux caused by the multiple reactance winding element is not zero.
Such as: two six pulse wave rectifier circuit in parallel of bridge-type are combined into a 12 arteries and veins rectification circuits, and two six pulse waves are whole
Current circuit is respectively connected a smoothing reactor, and the electric current and voltage of two reactors have a phase difference.Now an iron core
The reactance winding of formula (or open-core type) smoothing reactor splits into two reactance winding elements, by lead respectively with two six arteries and veins
The series connection of wave rectification circuit.By 12 pulsating wave electric current and voltage waveform analysis it is found that the magnetic flux of two reactance winding elements is superimposed it
Be not zero.Two rectification circuits are needed to pay attention to when design because of instantaneous voltage etc., have mutual inductance, mutual inductance allows a unit reactance to increase
Add, allows another unit reactance to reduce, but finally make two reactance unit reactance values equal.Similarly, 18 pulse waves, 24 pulse waves
And the above rectification circuit, a reactance winding resolve into several units, connect respectively with each rectification circuit unit.
12 arteries and veins smoothing reactor magnetic potentials are the vector sums of two 6 pulse wave reactance winding elements, two unit reactance values finally by
This magnetic potential vector sum determines.The smoothing reactor magnetic potential of 18 arteries and veins, 24 arteries and veins or more is the vector of each reactance winding element
With the finally thus magnetic potential vector sum decision of each unit reactance value.
Wire current contrary distribution core type smoothing reactor (referred to as novel smoothing reactor), it is characterized in that: at one
In six pulse wave rectifier circuits, multiple positions need series iron-core formula smoothing reactor, the electricity of a core type smoothing reactor
Anti- winding resolves into multiple reactance winding elements；
Wherein, the multiple reactance winding element is connected on the needing on position of the rectification circuit one by one respectively；
Wherein, flow direction caused by the multiple reactance winding element is identical.
For example, being sometimes the electronic component in protection rectification circuit, need to connect respectively at the both ends of a rectification circuit
The reactance winding of one core type smoothing reactor is split into two reactance windings now, led to respectively by two smoothing reactors
It crosses lead and is arranged in rectification circuit both ends.
Tandem type smoothing reactor magnetic potential is the algebraical sum of Unit two.
Wire current contrary distribution core type smoothing reactor (referred to as novel smoothing reactor), it is characterized in that: needing
In the cophase counter parallel connection rectifying circuit of series iron-core formula smoothing reactor, two rectification circuit units of cophase counter parallel connection are distinguished
It is rectification circuit unit (one) and rectification circuit unit (two)；The reactance winding of one core type smoothing reactor is resolved into two
A reactance winding element, respectively reactance winding element (one) and reactance winding element (two)；
Wherein, the reactance winding element (one) is connected into the rectification circuit unit (one), the reactance winding element
(2) it connects into the rectification circuit unit (two).
Similarly, we can also resolve into reactance winding element (one) reactance coil of two series relationships, go here and there respectively
It is associated in the different location of rectification circuit unit (one).We can also resolve into reactance winding element (two) two series relationships
Reactance coil, be connected on the different location of rectification circuit unit (two) respectively.
Similarly, in cophase counter parallel connection rectifying circuit, the rectification circuit of cophase counter parallel connection is divided into four rectification circuit units
Rectification circuit unit (one), (two), (three), (four) are respectively；The reactance winding of one smoothing reactor is resolved into four lists
Member, respectively reactance winding element (one), (two), (three), (four)；Wherein, reactance winding element (one) is connected into rectified current
Road unit (one) connects reactance winding element (two) into rectification circuit unit (two), reactance winding element (three) connect into
Rectification circuit unit (three) connects reactance winding element (four) into rectification circuit unit (four), and this cophase counter parallel connection is two
A cophase counter parallel connection rectifying circuit is in parallel.
In cophase counter parallel connection rectifying circuit, parallel connection type smoothing reactor magnetic potential is the algebraical sum of each rectification unit.
Wire current contrary distribution core type smoothing reactor (referred to as novel smoothing reactor), it is characterized in that: including iron
Core type smoothing reactor winding, and the first head lead of reactance winding and electricity including drawing one or more reactance winding currents
Anti- winding tail head lead, and or including smoothing reactor fuel tank tank wall；
Wherein, the lead is grouped two-by-two, and group lead row's current direction is opposite and is adjacently positioned；
Wherein, described group of adjacent lead current direction between group is opposite；
Wherein, described group of adjacent lead current direction between group is identical, and two group distances are remote；
Wherein, the leptoprosopy of the lead faces the reactance winding and the smoothing reactor fuel tank tank wall, such as Fig. 6.
Draw the meaning of the lead of the reactance winding head head and tail head of one or more reactance winding element electric currents
It is: the first head and tail head of each reactance winding element is drawn with lead.It is (general when the electric current of smoothing reactor is very big
More than 2000 A), electric current in winding is drawn with lead, it is copper bar or aluminium row, rare other materials that lead is generally mostly.
Generally the thickness of lead (copper bar or aluminium are arranged) leptoprosopy, width is wide or wide face, and length is height.Current direction is opposite to be drawn
Line row, which is adjacently positioned, to be meant and allows two leads distance is close as far as possible (such as 10mm) under the premise that security is guaranteed, is allowed individually
The magnetic field that one lead is established is cancelled out each other by the magnetic field that another lead is established, and is greatly lowered lead electricity in this way
Anti- and vortex.Busbar leptoprosopy is also to reduce the vortex in tank wall in face of tank wall.
By Fig. 1 wire current contrary distribution core type smoothing reactor connection principle schematic diagram it is found that in cophase counter parallel connection
In rectification circuit, two rectification units share a smoothing reactor, and a reactance winding is divided into two units, and lead is also divided into two
Two units of the opposite part of a electric current, reactance winding are parallel relationships.
By Fig. 2 wire current contrary distribution core type smoothing reactor connection principle schematic diagram it is found that in cophase counter parallel connection
In rectification circuit, two rectification units share a smoothing reactor, and a reactance winding is divided into four units, and lead is also divided into two
The each unit of four opposite parts of two electric currents, reactance winding has series relationship also to have parallel relationship.
By Fig. 3 wire current contrary distribution core type smoothing reactor connection principle schematic diagram it is found that being 12 arteries and veins
In two rectification units of wave rectification circuit, the series position and bind mode of two reactance windings.
By Fig. 4 wire current contrary distribution core type smoothing reactor connection principle schematic diagram it is found that being a rectified current
In road or rectification unit, a reactance winding and lead are divided into the opposite parallel branch principle of two electric currents.
By Fig. 5 wire current contrary distribution core type smoothing reactor connection principle schematic diagram it is found that being a rectified current
In road or rectification unit, a reactance winding and lead are divided into the opposite series arm principle of two electric currents.
From Fig. 1 and Fig. 2, it is assumed that the reactance winding of each section is respectively a smoothing reactor, they or series connection are closed
System or parallel relationship, ultimately form a unified inductance value.
Technical effect:
1, core type smoothing reactor is due to that can have fuel tank shielding, so preferably resolving the electromagnetic pollution of reactor, spoke
Penetrate problem.Allow operator, equipment, Architectural Services Department around in the working environment of safety.
2, the circulating current of multiple rectification units in parallel is eliminated.Novel smoothing reactor is by multiple reactance winding elements
Electric current, voltage coupling enable two branch currents equal.
3, DC magnetic bias phenomena is reduced in direct current smelting furnace.DC magnetic bias phenomena is trouble direct current smelting industry two
One of hang-up, the past is solved with electrode biasing technique, but huge problem is brought to the manufacturing of product, smelting process.
Past, direct current, which is smelted, can not use cophase counter parallel connection structure, therefore the great current lead wire copper bar of stokehold because of the wiring issue of reactor
Magnetic field can not be eliminated.This technology expands the working range of cophase counter parallel connection.Past cophase counter parallel connection circuit can only be attached to flat
Before wave reactor, it now is possible to the circuit structure of cophase counter parallel connection to the greatest extent close to stokehold.
4, core type smoothing reactor can be used in direct current smelting and direct current transportation circuit.Two inductance values are identical
Even if iron-core reactor is using identical drawing, identical technique, inductance value error is also very big after manufacture completion, and main cause is
The extremely difficult control of iron core air gap, especially reactor working time are long, and vibration allows air gap to change, and error causes circulation, therefore direct current
Transmission of electricity and direct current smelting industry use air reactor, this is the problem for perplexing reactor industry many years.Now being originally two
Platform reactor is changed to share an iron core with two reactance windings, and inductance value is essentially identical, even if long two inductance of work
Value variation be also it is identical, cause error be superimposed direction it is identical.It is used so can be smelted in direct current with direct current transportation industry
Core type smoothing reactor can allow smelting equipment closer to stokehold using iron-core reactor, can reduce very big direct current damage
Consumption.
5, the problems such as smoothing reactor lead reactance increases, is vortexed is preferably resolved.Energy conservation simultaneously, cost decline, are defeated
Out precision improve, can more reactors be combined into one.More same-phases (opposite in phase can also with), with the reactance of pulse number
Device is combined into a reactor, cost sharp fall.The even more reactors of some DC currents, DC voltage not etc. can also
By synthesizing a reactor, but it is noted that phase and pulse wave to the reasonable fractionation of reactance winding and arrangement.
6, more importantly previous rectification circuit cophase counter parallel connection when mostly use two reactors or four reactors, reactance
For the inductance value foozle one of device to larger, the iron core electric reactor iron extremely difficult control of gap in the heart causes the inductance value of each reactor not
Deng forming circulation between each unit of rectification circuit.Multiple reactance winding coupleds of a present direct current system together, inductance
Value output accuracy increases substantially.
Detailed description of the invention
Fig. 1 is one of wire current contrary distribution core type smoothing reactor connection principle schematic diagram.
Fig. 2 is one of wire current contrary distribution core type smoothing reactor connection principle schematic diagram.
Fig. 3 is one of wire current contrary distribution 12 pulsating wave smoothing reactor connection principle schematic diagram.
Fig. 4 is one of wire current contrary distribution core type smoothing reactor connection principle schematic diagram.
Fig. 5 is one of wire current contrary distribution core type smoothing reactor connection principle schematic diagram.
Fig. 6 is wire current contrary distribution core type smoothing reactor lead leptoprosopy face tank wall and the signal of winding principle
One of figure.
Wherein,
It 1, is the rectification circuit of cophase counter parallel connection.
It 2, is a rectification unit of cophase counter parallel connection rectifying circuit.
It 3, is another rectification unit of cophase counter parallel connection rectifying circuit.
It 4, is the lead between rectification circuit, smoothing reactor, load.
It 5, is a smoothing reactor.
It 6, is each wire current direction.
7, be smoothing reactor reactance winding a unit (branch).
8, be smoothing reactor reactance winding another unit (branch).
9, oil tank wall.
10, reactance winding.
11, lead.
12, some moment of lead current direction (● electric current come direction, the direction that ※ electric current is gone).
Specific embodiment
Example 1, a direct current system: rated direct voltage 1000V, rated direct current 2500A, former design requirement inductance
1.805mH smoothing reactor one.Now since rectification circuit is changed to cophase counter parallel connection structure, two are needed by traditional design scheme
3.61 mH smoothing reactors, but since the addition system of two smoothing reactors can not apply cophase counter parallel connection structure, because two
The busbar of a anti-parallel connection requires distance very close, and since two smoothing reactors need to respectively seal in a busbar, two is conductive
Array pitch is remote from very, loses the meaning of cophase counter parallel connection.Now apply the art of this patent, allow two 3.61 mH smoothing reactors around
Group shares an iron core.Using the simpler scheme of this patent be allow former design requirement inductance 1.805mH smoothing reactor around
Group is divided into two branches, each 3.61 mH of shunt inductance amount, then extremely simple, perfectly solve the problems, such as this.But this scheme
On condition that the winding of former reactor needs even numbered partial parallel combination to form, so could symmetrically split.
One, former iron core smoothing reactor data are set:
1, iron core use single-phase iron core, two stems and Double layer iron yoke piece with air gap at closed magnet circuit, core-diameter φ
Thickness c=265mm, window high Hw=880mm, window width Mo=800mm, core section are folded in 290, flux density Bm=1.45T, most large stretch of wide b=280
Product At=588cm^2,6, each 13mm, the every column of air gap, two columns add up to air gap 156mm.
2, reactance winding, voltage rating 1000V, rated current 2500A, inductance 1.805mH, the circle of total number of turns N=64.Often
8 sub-windings of column, the totally 16 sub-winding parallel connections of two columns, each 64 circle of sub-winding, continous way, 16 circles/cake, every 4 cake of sub-winding are double
Glass fiber covered winding wire SBECB -45/,155 4 × 12.5, two and around.Air flue 10mm between cake, air flue 21.5mm between coil, circle
Between air flue 7mm.
Each high h=13 of winding × 4+3 × 10 × 3 × 0.93(compressed coefficient)=80mm
The total high H=8 × 80+7 × 21.5 × 0.93(compressed coefficient of 8 parallel windings of every column)=780mm
Each winding change thickness b=4.5 × 2 × 16+15 × 5=225mm
1=310mm of winding inner diameter φ
2=310+2 × 225 winding outer diameter φ=760mm.
Two, design scheme:
1, structure designs (see figure 1)
Former reactance winding construction: 8 sub-winding compositions of every column, the totally 16 sub-winding parallel connections of two columns, each 64 circle of sub-winding, continuously
Formula, 16 circles/cake, every 4 cake of sub-winding.
(1) first part of reactance winding: each sub-winding of one column of iron core from top to bottom number 1,3,5,7 four point around
Totally 8 sub-winding groups are in parallel for 1,3,5,7 four sub-winding of the number from top to bottom of group and another column, and the first of composition reactance winding
Part.
The second part of reactance winding: 2,4,6,8 four sub-windings that each sub-winding of one column of iron core counts from top to bottom
Totally 8 sub-winding groups are in parallel for 2,4,6,8 four sub-windings with the number from top to bottom of another column, and second of composition reactance winding
Point.
(2) winding leads use 8mm × 80mm copper bar, and totally 8, every column arranges 4.Wherein copper bar leptoprosopy is towards winding,
Apart from winding 80mm, every 4 copper bars are one group, spacing 10mm between copper bar, are successively coupled with the head and the tail of each sub-winding head and the tail.Due to
Electric current between adjacent copper bar is on the contrary, so magnetic field is cancelled out each other.
(3) outlet busbar is TED -12 × 100 4.Wherein, two one group, one is anode, and one is cathode,
Anode is coupled with 8 first heads of sub-winding of reactance winding first part, and cathode is coupled with tail head, two busbars at a distance of 120mm,
And the positive-negative polarity of two busbars is accessed in a rectification branch by the principle of Fig. 1.The similarly conduction of another two positive and negative anodes
In another rectification branch of row's access.Four busbars head and the tail adjacent, equal 120mm of spacing of head and the tail, allow the electric current of each busbar
It is successively opposite.
2, as shown in Figure 1: since reactance winding two parts are parallel relationships, so the rated current of every part is 1250A,
The number of turns is 64 circles, 3.61 mH of inductance.
1, Yuanping City's wave reactor iron core flux density calculates:
(1) the every side of air gap expands width ε after magnetic flux diffusion
ε=0.735 × δ × ln((Hb+ δ)/δ)=0.655cm
In formula, each stem air gap of δ-, 1.3cm
The each stem iron-cored cake of Hb-is high, 5cm
(2) air gap effective sectional area A after the diffusion of consideration magnetic fluxδ
Aδ= At+ 2 × ε × cm of (b+c+2 × ε)=588+73.1=661.12
In formula, At- area of core section, 588
B-lamination is wide, 28cm
The folded thickness of c-iron core, 26.5cm
(3) the DC magnetic flux density Bdc that DC current generates in iron core
Bdc=(0.4 × π × N × Id/ Σ δ) × (Aδ/At) × 10- 4T
Bdc=1.448T
From calculating above: the number of turns of smoothing reactor is all 64 circles, two parts electric current and be 2500A, and core construction is unchanged,
So the flux density when reactance winding of smoothing reactor is divided into two parts is constant, therefore the magnetic permeability of iron core is constant.
3, Yuanping City's wave reactor reactance winding is divided into the inductance value calculation of each section after two parts:
The inductance value of each sub-winding is 28.88 mH known to former design, so 8 sub-winding inductance values in parallel
L=28.88 mH÷8=3.61 mH。
In the past when two reactors of the cophase counter parallel connection of rectification circuit, circulation is big, land occupation is big, magnetic field can not be supported between lead
Disappear, inductance value differs, these present disadvantages without.
2, original core formula smoothing reactors of example: voltage rating 1000V, rated current 2500A, design requirement electricity
Sensibility reciprocal 1.805mH.Since rectification circuit is changed to two bridge-type twelve-pulse mode rectification circuits by six pulse waves, every branch current
It is small by 50%, therefore be guarantee system safety, guarantee that short circuit current is constant, the inductance value of every branch is 3.61 mH.
Reactor design scheme is the same as example 1, two reactance winding elements and rectification circuit connection plan such as Fig. 3.
Claims (4)
1. wire current contrary distribution core type smoothing reactor, it is characterized in that: in 12 pulsating wave rectification circuit or more
In rectification circuit, each six pulse wave rectifiers circuit needs to connect a six pulse wave core type smoothing reactors, a core type
The reactance winding of smoothing reactor resolves into multiple six pulse waves reactance winding elements corresponding with each six pulse wave rectifiers circuit；
Wherein, the multiple six pulse waves reactance winding element is connected on one by one respectively on the position that the rectification circuit needs；
Wherein, the sum of superposition of magnetic flux caused by the multiple reactance winding element is not zero.
2. wire current contrary distribution core type smoothing reactor, it is characterized in that: in a six pulse wave rectifier circuits, Duo Gewei
It sets and needs series iron-core formula smoothing reactor, the reactance winding of a core type smoothing reactor is resolved into multiple reactance windings
Unit；
Wherein, the multiple reactance winding element is connected on the needing on position of the rectification circuit one by one respectively；
Wherein, flow direction caused by the multiple reactance winding element is identical.
3. wire current contrary distribution core type smoothing reactor according to claim 2, it is characterized in that: needing iron of connecting
In the cophase counter parallel connection rectifying circuit of core type smoothing reactor, rectification is cried respectively two rectification circuit units of cophase counter parallel connection
Circuit unit (one) and rectification circuit unit (two)；The reactance winding of one core type smoothing reactor is resolved into two
The reactance winding element, respectively reactance winding element (one) and reactance winding element (two)；
Wherein, the reactance winding element (one) is connected into the rectification circuit unit (one), the reactance winding element
(2) it connects into the rectification circuit unit (two).
4. according to claim 1,2, the 3 wire current contrary distribution core type smoothing reactor, it is characterized in that: including iron core
Formula smoothing reactor winding, and the first head lead of reactance winding including drawing one or more reactance winding currents and reactance
Part of the winding tail head lead in fuel tank, and or including smoothing reactor fuel tank tank wall；
Wherein, the lead is grouped two-by-two, and group lead row's current direction is opposite and is adjacently positioned；
Wherein, described group of adjacent lead current direction between group is opposite；
Wherein, described group of adjacent lead current direction between group is identical, and two group distances are remote；
Wherein, the leptoprosopy of the lead faces the reactance winding and the smoothing reactor fuel tank tank wall.
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| CN109327147A (en) * | 2018-11-27 | 2019-02-12 | 保定市卓思恒畅电器有限公司 | A kind of power regulation device of High Frequency Solid State induction heating power |
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Application publication date: 20191112 |