CN207021121U - A kind of 18 pulse wave self coupling phase-shifting rectifier transformers - Google Patents
A kind of 18 pulse wave self coupling phase-shifting rectifier transformers Download PDFInfo
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- CN207021121U CN207021121U CN201720572765.1U CN201720572765U CN207021121U CN 207021121 U CN207021121 U CN 207021121U CN 201720572765 U CN201720572765 U CN 201720572765U CN 207021121 U CN207021121 U CN 207021121U
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Abstract
The utility model discloses a kind of 18 pulse wave self coupling phase-shifting rectifier transformers, include framework and winding；The framework includes the upper horizontal yoke being parallel to each other, middle horizontal yoke and lower horizontal yoke；The winding includes U phase windings, V phase windings and W phase windings；The end of the winding U1 is connected with winding U2 head end；The end of the winding U2 is connected with the head end of winding V3 end and winding V4；The end of the winding V1 is connected with winding V2 head end；The end of the winding V2 is connected with the head end of winding W3 end and winding W4；The end of the winding W1 is connected with winding W2 head end；The end of the winding W2 is connected with the head end of winding U3 end and winding U4.The utility model is realized by said structure carries out 18 pulse wave self coupling phase shifts on a transformer, reduces winding, simplifies wiring and reduces cost.
Description
Technical field
It the utility model is related to transformer technology field, and in particular to a kind of 18 pulse wave self coupling phase-shifting rectifier transformers.
Background technology
Currently, as the rapid development of Power Electronic Technique, increasing fairing are applied to every field.By
In its nonlinear characteristic, net side input current generates Severe distortion, reduces the Electro Magnetic Compatibility of equipment, to power network and its
Its electrical equipment brings harm.Therefore, how to suppress current harmonics is a vital task.
Harmonics restraint is the weight for being related to the fields such as Power Electronic Technique, power system, Electric automation technology, Theoretical Electrotechnics
Big problem.Because the application of power electronic equipment is increasingly extensive so that harmonic wave and idle problem cause people more and more to be closed
Note.Meanwhile also due to the made rapid progress of Power Electronic Technique, it is recognized that the umber of pulse by increasing rectification, can be improved
The input current and output voltage characteristic of rectifier.Umber of pulse is more, and the harmonic order in input current and output voltage is higher.
Analysis understands that the transformer in multi-pulse rectifier is equivalent to a passive filter, has filtered out specific in output current
Subharmonic.By increasing the umber of pulse of rectification, input current total harmonic distortion and voltage pulsating factor can be effectively reduced.
18 traditional pulse wave phase-shifting rectifier transformers use extended triangle phase-shifting, or are joined using more phase-shifting transformers
Phase shift parallel operation is closed, input energy is transferred to by output end by transformer magnetic coupling completely, so this transformer etc.
Effect capacity is bigger, the number of windings is more, wiring is complicated, cost is high.
The content of the invention
The purpose of this utility model is to be directed to above-mentioned deficiency of the prior art, there is provided a kind of 18 pulse wave self coupling phase shifts are whole
Convertor transformer.
The purpose of this utility model is achieved through the following technical solutions：A kind of 18 pulse wave self coupling phase-shifting rectifier transformers, bag
Framework and winding are included；The framework includes the upper horizontal yoke being parallel to each other, middle horizontal yoke and lower horizontal yoke；
The first stem, the second stem and the 3rd stem being parallel to each other are provided between the upper horizontal yoke and middle horizontal yoke；Institute
State four-limbed, the 5th stem and the 6th stem for being provided with and being parallel to each other between horizontal yoke and lower horizontal yoke；
The winding includes U phase windings, V phase windings and W phase windings；
The U phase windings include the winding U1 being arranged on the first stem and the winding being arranged on four-limbed
U2, winding U3, winding U4；The V phase windings include the winding V1 being arranged on the second stem and are arranged on the 5th stem
On winding V2, winding V3, winding V4；The W phase windings include the winding W1 being arranged on the 3rd stem and are arranged on
The 6th winding W2, winding W3, winding W4 on 6th stem；
The end of the winding U1 is connected with winding U2 head end；The end of the winding U2 and winding V3 end and
Winding V4 head end connection；
The end of the winding V1 is connected with winding V2 head end；The end of the winding V2 and winding W3 end and
Winding W4 head end connection；
The end of the winding W1 is connected with winding W2 head end；The end of the winding W2 and winding U3 end and
Winding U4 head end connection.
The utility model is further arranged to, the first described stem, the second stem, the 3rd stem, four-limbed, the 5th
Stem and the 6th stem are equipped with air gap.
The utility model is further arranged to, and the framework also includes two return yokes for being respectively arranged on middle horizontal yoke both sides；
The return yoke is located between middle horizontal yoke and lower horizontal yoke.
The utility model is further arranged to, and the head end of the winding U1 is provided with input port A；Winding U2 head end is provided with defeated
Export a2；Winding V3 head end is provided with delivery outlet a1；Winding V4 end is provided with delivery outlet a3；
The head end of the winding V1 is provided with input port B；Winding V2 head end is provided with delivery outlet b2；Winding W3 head end is provided with
Delivery outlet b1；Winding W4 end is provided with delivery outlet b3；
The head end of the winding W1 is provided with input port C；Winding W2 head end is provided with delivery outlet c2；Winding U3 head end is provided with
Delivery outlet c1；Winding U4 end is provided with delivery outlet c3.
The utility model is further arranged to, the phase of the delivery outlet a2 output voltages hysteresis delivery outlet a1 output voltages
20 degree, 20 degree of the phase of the advanced delivery outlet a3 output voltages of delivery outlet a2 output voltages；The delivery outlet b2 output voltages
Lag 20 degree of the phase of delivery outlet b1 output voltages, the phase of the advanced delivery outlet b3 output voltages of delivery outlet b2 output voltages
20 degree；20 degree of the phase of the delivery outlet c2 output voltages hysteresis delivery outlet c1 output voltages, the delivery outlet c2 output voltages
20 degree of the phase of advanced delivery outlet c3 output voltages.
The utility model is further arranged to, the phase of the advanced delivery outlet b2 output voltages of delivery outlet a2 output voltages
120 degree；120 degree of the phase of the advanced delivery outlet c2 output voltages of delivery outlet b2 output voltages.
The utility model is further arranged to, winding U2 vector voltage, winding V2 vector voltage and winding W2
Vector voltage is equal；The vector voltage of winding U3 vector voltage, winding V3 vector voltage and winding W3 is equal；Winding U4
Vector voltage, winding V4 vector voltage and winding W4 vector voltage it is equal.
Further, the vector voltage relation of each winding is U2=V2=W2=0.0402U, U3=V3=W3=0.21757U,
U4=V4=W4=0.17736U.U is net side input line voltage.U1=V1=W1=kU, wherein k is set to take (0.04 ~ 0.06) simultaneously,
That is U1=V1=W1=(0.04 ~ 0.06) U.
The beneficial effects of the utility model：The utility model is realized by said structure carries out 18 arteries and veins on a transformer
Ripple self coupling phase shift, reduce winding, simplify wiring and reduce cost.
Brief description of the drawings
Utility model is described further using accompanying drawing, but the embodiment in accompanying drawing is not formed to of the present utility model
What is limited, on the premise of not paying creative work, can also be according to the following drawings for one of ordinary skill in the art
Obtain other accompanying drawings.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is three-phase windings loss diagram of the present utility model；
Fig. 3 is the loss diagram of the utility model A phase windings；
Fig. 4 is the calculation procedure of each vector of the utility model；
Description of reference numerals in Fig. 1 to Fig. 4：
The upper horizontal yokes of 101-；Horizontal yoke in 102-；Horizontal yoke under 103-；The stems of 201- first；The stems of 202- second；The cores of 203- the 3rd
Post；300- return yokes；301- four-limbeds；The stems of 302- the 5th；The stems of 303- the 6th；400- air gaps.
Embodiment
The utility model is further described with the following Examples.
From Fig. 1 to Fig. 3；The pulse wave self coupling phase-shifting rectifier transformer of one kind 18 described in the present embodiment, includes framework
And winding；The framework includes the upper horizontal yoke 101 being parallel to each other, middle horizontal yoke 102 and lower horizontal yoke 103；
Between the upper horizontal yoke 101 and middle horizontal yoke 102 be provided be parallel to each other the first stem 201, the second stem 202 and
3rd stem 203；Four-limbed 301, the 5th stem 302 being parallel to each other are provided between wherein the middle cross yoke 102 and lower horizontal yoke 103
And the 6th stem 303；
The winding includes U phase windings, V phase windings and W phase windings；
The U phase windings include the winding U1 being arranged on the first stem 201 and are arranged on four-limbed 301
Winding U2, winding U3, winding U4；The V phase windings include the winding V1 being arranged on the second stem 202 and are arranged on
Winding V2, winding V3, winding V4 on five stems 302；The W phase windings include the winding being arranged on the 3rd stem 203
W1 and the 6th winding W2 being arranged on the 6th stem 303, winding W3, winding W4；
The end of the winding U1 is connected with winding U2 head end；The end of the winding U2 and winding V3 end and
Winding V4 head end connection；
The end of the winding V1 is connected with winding V2 head end；The end of the winding V2 and winding W3 end and
Winding W4 head end connection；
The end of the winding W1 is connected with winding W2 head end；The end of the winding W2 and winding U3 end and
Winding U4 head end connection.
Combine phase shift parallel operation, this implementation compared to traditional extended triangle phase-shifting or using more phase-shifting transformers
The transformer of example is realized by said structure carries out 18 pulse wave self coupling phase shifts on a transformer, reduces winding, simplifies
Wiring and reduce cost.
The pulse wave self coupling phase-shifting rectifier transformer of one kind 18 described in the present embodiment, the first described stem 201, the second stem
202nd, the 3rd stem 203, four-limbed 301, the 5th stem 302 and the 6th stem 303 are equipped with air gap 400.Pass through adjustment
Coil turn and 400 big I of air gap easily adjust the voltage vector pressure drop on each stem.
The pulse wave self coupling phase-shifting rectifier transformer of one kind 18 described in the present embodiment, the framework also include two and set respectively
Return yoke 300 in the middle horizontal both sides of yoke 102；The return yoke 300 is located between middle horizontal yoke 102 and lower horizontal yoke 103.By setting return yoke
300 can strengthen the steadiness of transformer, at the same by set return yoke 300 three-phase magnetic circuit of transformer can be made relatively independent and
Symmetrically, it is ensured that three-phase phase shifting does not interfere with each other respectively.Likewise, the first stem 201, second can be made by horizontal yoke 102 in setting
Winding magnetic on the winding and four-limbed 301, the 5th stem 302 and the 6th stem 303 of the stem 203 of stem 202 and the 3rd
Road is relatively independent, it is ensured that the phase shift between input and output end, meanwhile, further reduce complete machine harmonic wave and release.
The pulse wave self coupling phase-shifting rectifier transformer of one kind 18 described in the present embodiment, the head end of the winding U1 are provided with input port
A；Winding U2 head end is provided with delivery outlet a2；Winding V3 head end is provided with delivery outlet a1；Winding V4 end is provided with delivery outlet a3；
The head end of the winding V1 is provided with input port B；Winding V2 head end is provided with delivery outlet b2；Winding W3 head end is provided with delivery outlet
b1；Winding W4 end is provided with delivery outlet b3；The head end of the winding W1 is provided with input port C；Winding W2 head end is provided with output
Mouth c2；Winding U3 head end is provided with delivery outlet c1；Winding U4 end is provided with delivery outlet c3.The arteries and veins of one kind 18 described in the present embodiment
Ripple self coupling phase-shifting rectifier transformer, 20 degree of the phase of the delivery outlet a2 output voltages hysteresis delivery outlet a1 output voltages are described
20 degree of the phase of the advanced delivery outlet a3 output voltages of delivery outlet a2 output voltages；The delivery outlet b2 output voltages lag delivery outlet
20 degree of the phase of b1 output voltages, 20 degree of the phase of the advanced delivery outlet b3 output voltages of delivery outlet b2 output voltages；It is described
Delivery outlet c2 output voltages lag 20 degree of the phase of delivery outlet c1 output voltages, the advanced delivery outlet of delivery outlet c2 output voltages
20 degree of the phase of c3 output voltages.The pulse wave self coupling phase-shifting rectifier transformer of one kind 18 described in the present embodiment, the delivery outlet a2
120 degree of the phase of the advanced delivery outlet b2 output voltages of output voltage；The advanced delivery outlet c2 outputs of delivery outlet b2 output voltages
120 degree of the phase of voltage.The pulse wave self coupling phase-shifting rectifier transformer of one kind 18 described in the present embodiment, winding U2 vector voltage,
Winding V2 vector voltage and winding W2 vector voltage are equal；Winding U3 vector voltage, winding V3 vector voltage with
And winding W3 vector voltage is equal；The vector voltage of winding U4 vector voltage, winding V4 vector voltage and winding W4
It is equal.
When transformation is carried out, input port A, input port B and input port C and net side are attached；As shown in Fig. 2
Cause each vector voltage U1=V1=W1, U2=V2=W2, U3=V3=W3, U4=V4=W4 of winding simultaneously.Output port a1, a2, a3
Relative to net side phase center point o successively 20 degree of phase shift respectively；Output port b1, b2, b3 relative to net side phase center point o according to
Secondary 20 degree of phase shift respectively；Output port c1, c2, c3 realize relative to net side phase nominal center point o successively 20 degree of phase shift respectively
The functions of 18 pulse wave self coupling phase shifts.The distortion of transformer output voltage can be suppressed, can eliminate 3 times times and 5,7,9,11,
13rd, 15,17,19 inferior harmonic wave, greatly improve secondary side harmonic wave influences to caused by its primary side power network；Meanwhile each winding
Connected for perception, in addition to own loss, do not occupy transformer actual capacity.
Further, as shown in Figure 3,4, said structure is easy to draw the respective vector voltage of each winding, specific algorithm
Step is as follows：Step 1, vector is sought；
In isosceles vector triangleIn, bottom side length, wherein U is
Net side input line voltage；
Step 2, vector is sought；
If vectorWith vectorM points are intersected at, in right angle vector triangleIn, right-angle side；
Step 3, vector is sought；
In right angle vector triangleIn, right-angle side；
Step 4, vector is soughtI.e.、；
If vectorWith vectorIntersect atPoint, in right angle vector triangleIn, ∠ a2-n-m=
60 °, hypotenuse a2-n is；；
Step 5, vector a1-n i.e. V3, n-a3 i.e. V4 is sought；
On vector a1-a3 straight line, a1-n is, n-a3 is
；
It can be drawn by above step 1 ~ 5, each winding vector voltage, U2=V2=W2=0.0402U, U3=V3=W3=
0.21757U, U4=V4=W4=0.17736U.U is net side input line voltage.U1=V1=W1=kU, wherein k is set to take simultaneously
(0.04 ~ 0.06), i.e. U1=V1=W1=(0.04 ~ 0.06) U.
Finally it should be noted that above example is only illustrating the technical solution of the utility model, rather than to this reality
With the limitation of novel protected scope, although being explained with reference to preferred embodiment to the utility model, this area it is general
It is logical it will be appreciated by the skilled person that can be modified to the technical solution of the utility model or equivalent substitution, without departing from this
The spirit and scope of utility model technical scheme.
Claims (8)
- A kind of 1. 18 pulse wave self coupling phase-shifting rectifier transformers, it is characterised in that：Include framework and winding；The framework includes The upper horizontal yoke being parallel to each other（101）, middle horizontal yoke（102）And lower horizontal yoke（103）；The upper horizontal yoke（101）With middle horizontal yoke（102）Between be provided with the first stem for being parallel to each other（201）, the second stem（202） And the 3rd stem（203）；Wherein the middle cross yoke（102）With lower horizontal yoke（103）Between be provided with the four-limbed that is parallel to each other （301）, the 5th stem（302）And the 6th stem（303）；The winding includes U phase windings, V phase windings and W phase windings；The U phase windings, which include, is arranged on the first stem（201）On winding U1 and be arranged on four-limbed（301）On Winding U2, winding U3, winding U4；The V phase windings, which include, is arranged on the second stem（202）On winding V1 and be arranged on 5th stem（302）On winding V2, winding V3, winding V4；The W phase windings, which include, is arranged on the 3rd stem（203）On Winding W1 and be arranged on the 6th stem（303）On the 6th winding W2, winding W3, winding W4；The end of the winding U1 is connected with winding U2 head end；The end of the winding U2 and winding V3 end and winding V4 head end connection；The end of the winding V1 is connected with winding V2 head end；The end of the winding V2 and winding W3 end and winding W4 head end connection；The end of the winding W1 is connected with winding W2 head end；The end of the winding W2 and winding U3 end and winding U4 head end connection.
- A kind of 2. 18 pulse wave self coupling phase-shifting rectifier transformer according to claim 1, it is characterised in that：The first described core Post（201）, the second stem（202）, the 3rd stem（203）, four-limbed（301）, the 5th stem（302）And the 6th stem （303）It is equipped with air gap（400）.
- A kind of 3. 18 pulse wave self coupling phase-shifting rectifier transformer according to claim 1, it is characterised in that：The framework also wraps Include two and be respectively arranged on middle horizontal yoke（102）The return yoke of both sides（300）；The return yoke（300）Located at middle horizontal yoke（102）With lower horizontal stroke Yoke（103）Between.
- A kind of 4. 18 pulse wave self coupling phase-shifting rectifier transformer according to claim 1, it is characterised in that：The head end of the winding U1 is provided with input port A；Winding U2 head end is provided with delivery outlet a2；Winding V3 head end is provided with output Mouth a1；Winding V4 end is provided with delivery outlet a3；The head end of the winding V1 is provided with input port B；Winding V2 head end is provided with delivery outlet b2；Winding W3 head end is provided with output Mouth b1；Winding W4 end is provided with delivery outlet b3；The head end of the winding W1 is provided with input port C；Winding W2 head end is provided with delivery outlet c2；Winding U3 head end is provided with output Mouth c1；Winding U4 end is provided with delivery outlet c3.
- A kind of 5. 18 pulse wave self coupling phase-shifting rectifier transformer according to claim 4, it is characterised in that：The delivery outlet a2 Output voltage lags 20 degree of the phase of delivery outlet a1 output voltages, the advanced delivery outlet a3 outputs electricity of delivery outlet a2 output voltages 20 degree of the phase of pressure；20 degree of the phase of the delivery outlet b2 output voltages hysteresis delivery outlet b1 output voltages, the delivery outlet b2 20 degree of the phase of the advanced delivery outlet b3 output voltages of output voltage；The delivery outlet c2 output voltages hysteresis delivery outlet c1 output electricity 20 degree of the phase of pressure, 20 degree of the phase of the advanced delivery outlet c3 output voltages of delivery outlet c2 output voltages.
- A kind of 6. 18 pulse wave self coupling phase-shifting rectifier transformer according to claim 4, it is characterised in that：The delivery outlet a2 120 degree of the phase of the advanced delivery outlet b2 output voltages of output voltage；The advanced delivery outlet c2 outputs of delivery outlet b2 output voltages 120 degree of the phase of voltage.
- A kind of 7. 18 pulse wave self coupling phase-shifting rectifier transformer according to claim 1, it is characterised in that：Winding U2 vector The vector voltage of voltage, winding V2 vector voltage and winding W2 is equal；Winding U3 vector voltage, winding V3 vector electricity Pressure and winding W3 vector voltage are equal；The vector of winding U4 vector voltage, winding V4 vector voltage and winding W4 Voltage is equal.
- A kind of 8. 18 pulse wave self coupling phase-shifting rectifier transformer according to claim 1, it is characterised in that：Each winding vector electricity Pressure, U2=V2=W2=0.0402U, U3=V3=W3=0.21757U, U4=V4=W4=0.17736U；Wherein U is net side input line electricity Pressure；U1=the V1=W1=kU, wherein k take 0.04-0.06, i.e. U1=V1=W1=0.04-0.06U.
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| CN201720572765.1U CN207021121U (en) | 2017-05-22 | 2017-05-22 | A kind of 18 pulse wave self coupling phase-shifting rectifier transformers |
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| CN201720572765.1U CN207021121U (en) | 2017-05-22 | 2017-05-22 | A kind of 18 pulse wave self coupling phase-shifting rectifier transformers |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424785A (en) * | 2017-05-22 | 2017-12-01 | 东莞市大忠电子有限公司 | A kind of 18 pulse wave self coupling phase-shifting rectifier transformers |
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2017
- 2017-05-22 CN CN201720572765.1U patent/CN207021121U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424785A (en) * | 2017-05-22 | 2017-12-01 | 东莞市大忠电子有限公司 | A kind of 18 pulse wave self coupling phase-shifting rectifier transformers |
| CN107424785B (en) * | 2017-05-22 | 2019-01-25 | 东莞市大忠电子有限公司 | A kind of 18 pulse wave self coupling phase-shifting rectifier transformers |
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