CN105375792B - The arteries and veins self coupling vertoro of step-up/down formula 24 - Google Patents
The arteries and veins self coupling vertoro of step-up/down formula 24 Download PDFInfo
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- CN105375792B CN105375792B CN201510967654.6A CN201510967654A CN105375792B CN 105375792 B CN105375792 B CN 105375792B CN 201510967654 A CN201510967654 A CN 201510967654A CN 105375792 B CN105375792 B CN 105375792B
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- 230000008878 coupling Effects 0.000 title claims abstract description 29
- 238000010168 coupling process Methods 0.000 title claims abstract description 29
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 29
- 210000001367 artery Anatomy 0.000 title claims abstract description 24
- 210000003462 vein Anatomy 0.000 title claims abstract description 24
- 238000004804 winding Methods 0.000 claims abstract description 176
- 230000033228 biological regulation Effects 0.000 claims abstract description 4
- 230000006837 decompression Effects 0.000 claims description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 12
- 238000003786 synthesis reaction Methods 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 4
- 230000010363 phase shift Effects 0.000 abstract description 2
- 238000009795 derivation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003828 downregulation Effects 0.000 description 2
- 238000010183 spectrum analysis Methods 0.000 description 2
- 230000003827 upregulation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/068—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode mounted on a transformer
-
- 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
Abstract
The invention discloses a kind of arteries and veins self coupling vertoro of step-up/down formula 24, solve the problems, such as that traditional 24 arteries and veins self coupling vertoroes can not pressure regulation, voltage-regulation is carried out according to auto-transformer output-input voltage ratio, the voltage vector direction for changing three-phase former limit part winding is extreme direction of the same name, step-up/down function is realized, reaches the purpose of wide-range voltage output.The connected mode of auto-transformer original vice-side winding and each winding voltage vector length are rationally designed, to obtain per the equal transformer output voltage of 4 groups of phase, 15 ° of phase shift, amplitude.Auto-transformer and four groups of rectifier bridges and paralleing reactor realize high-performance low ripple direct voltage output.The arteries and veins self coupling vertoro of step-up/down formula 24 that the present invention describes, Harmonics of Input content is low, and transformer equivalent capacity is small, suitable for industry, especially aviation field.
Description
Technical field
The invention belongs to field of conversion of electrical energy, refers specifically to a kind of arteries and veins self coupling vertoro of step-up/down formula 24.
Background technology
Non-linear due to airborne equipment power electronic devices in aviation AC power supply system, aircraft power network is by certain
Harmonic pollution, endanger aviation power supply quality and the stability of aircraft operation.Multi-pulse rectifier is because harmonic content is low, can at present
By the advantages that property is high, cost is low, efficiency high, it is widely used in fields such as chemical industry metallurgical, airplane power sources.12 traditional arteries and veins
Self coupling vertoro, its advantage are that transformer equivalent capacity is small, only 18.34%, but net side Harmonics of Input content compared with
It is high, it is impossible to meet the standard of aviation field Harmonics of Input content.18 arteries and veins self coupling vertoroes compare 12 arteries and veins self coupling transformations
Rectifier has a more preferable harmonic characterisitic, but its Harmonics of Input content theoretical value 10.11%, remains above aviation field
Harmonics of Input content is less than 10% standard.Current existing 24 arteries and veins self coupling vertoro AC input current is 24
Staircase waveform, Harmonics of Input content is further reduced, theoretical value is about 8%, meets civil aviaton's airworthiness standard.But 24 traditional arteries and veins
Self coupling vertoro is exported by bridge conversion circuit rectification, and output voltage is certain and is difficult to adjust, it is impossible to meets current boat
The requirement of empty field low-voltage DC supply system.
The content of the invention
The invention aims to realize that the output of 24 arteries and veins self coupling vertoroes is adjustable, there is provided a kind of step-up/down formula
24 arteries and veins self coupling vertoroes.
To achieve the above object, the scheme that uses of the present invention for：
The winding construction and winding connection of the arteries and veins self coupling vertoro of step-up/down formula 24.The arteries and veins of step-up/down formula 24
Self coupling vertoro includes：Auto-transformer, three-phase commutation bridge and its paralleing reactor.The auto-transformer is per phase primary side
5 windings (p1, p2, p3, p4, p5), 4 windings (s1, s2, s3, s4) of secondary, its winding construction and connected mode, using A phases as
Example is described in detail, and A phases export phase voltage vector correlation and are： So winding connection is：A phase primary side windings p1 head end a
For A phase power inputs, p1 head ends a connection C phase primary side windings p5 end, p5 head end connection B phase vice-side windings s3 head
End, s3 end is voltage output end a2, B phase vice-side windings s3 end a2It is connected with C phase primary side windings p4 end, p4's
Head end connection B phase vice-side windings s4 head end, s4 end is voltage output end a1, while B phase vice-side windings s4 end a1Even
C phase primary side windings p3 end is connect, participates in synthesis C phase output voltages, A phase primary side windings p1 end and B phase vice-side windings s2
End connection, s2 head end is voltage output end a3, B phase vice-side windings s2 head end a3Connect with A phase primary side windings p2 head end
Connect, p2 end connection B phase vice-side windings s1 end, s1 head end is voltage output end a4, while B phase vice-side windings s1
Head end a4A phase primary side windings p3 head end is connected, participates in synthesis B phase output voltages, B phases, winding connection and the A phases of C phases
It is similar.Voltage vector direction of the transformer per phase primary side winding p1, p5 and every phase primary side winding during decompression mode under boost mode
P1, p5 voltage vector are in opposite direction, i.e., Same Name of Ends is reverse.It is described in detail by taking A phases as an example, A phase primary side windings p1 head end a is
A phase power inputs, p1 ends connection B phase vice-side windings s3 head end, s3 end is voltage output end a2, B phases secondary around
Group s3 end a2It is connected with C phase primary side windings p4 end, p4 head end connection B phase vice-side windings s4 head end, s4 end
Hold as voltage output end a1, while B phase vice-side windings s4 end a1C phase primary side windings p3 end is connected, participates in synthesis C phases
Output voltage, A phase primary side windings p1 head end a and C phase primary side winding p5 end are connected, p5 head end connection B phase vice-side windings
S2 end, s2 head end is voltage output end a3, B phase vice-side windings s2 end a3It is connected with A phase primary side windings p2 head end,
P2 end connection B phase vice-side windings s1 end, s1 head end is voltage output end a4, while B phase vice-side windings s1 head end a4
A phase primary side windings p3 head end is connected, synthesis B phase output voltages is participated in, descends A phase output voltage vector relations in a boost mode
For：
B phases, the winding connection of C phases are similar to A phases.
When auto-transformer is operated in decompression mode, transformer is equal per phase output voltage amplitude, and phase differs 15 °, together
Shi Shixian enters to be about to pressure regulation to output voltage.Transformer input voltage (the V by taking A phases as an exampleaN) with transformer output voltage (with A
Exemplified by phase) the ratio between be ku().Transformer is expressed as k per phase primary side winding voltage vector lengthp1,
kp2, kp3, kp4, kp5, vice-side winding voltage vector length is expressed as ks1, ks2, ks3, ks4, it is assumed that input voltage vector length
For 1, then transformer is k per mutually output phase voltage vector lengthu, the score of transformer output-input voltage is into 2 different scopes：
Decompression mode (a)：sin30°/sin142.5°≤ku≤ 1/cos7.5 ° and decompression mode (b)：0.45 ＜ ku＜ sin30 °/
sin142.5°.Every mutually former vice-side winding voltage vector length and the voltage change ratio k of the auto-transformeruBetween meet it is certain
Relation.When transformer output-input voltage ratio is in sin30 °/sin142.5 °≤k of scopeu≤ 1/cos7.5 ° in when, transformer
Per mutually former secondary, each winding voltage vector length derivation (referring to accompanying drawing 6) is：
In Δ oNa3In, ∠ oNa3=7.5 °, so：
ON=Na3* cos7.5 °, oa3=Na3* sin7.5 °, oa=aN-Na3*cos7.5°
In Δ oaa3In, ∠ oaa01=30 °, so：
aa01=oa/cos30 °, oa01=oa*tan30 °, a01a3=oa3-oa01
In Δ Na3a4In, ∠ a3Na4=15 °, ∠ Na3a4=∠ Na4a3=82.5 °, obtained using sine：
Then
In Δ a3a02a4In, ∠ a3a02a4=120 °, ∠ a02a3a4=45 °, ∠ a02a4a3It is=15 °, sinusoidal using triangle
Theorem is understood：
In Δ Na461In, ∠ a4Nb1=75 °, ∠ Na4b1=∠ Nb1a4=52.5 °, understood using triangle sine：
So transformer is with voltage change ratio relation per mutually each umber of turn voltage vector length：
When transformer output-input voltage ratio is in scope：0.45 ＜ kuWhen in ＜ sin30 °/sin142.5 °, transformer is every
(i.e. voltage change ratio scope is when phase vice-side winding s2, s3 voltage vector direction is operated in decompression mode (a) with transformer：sin30°/
sin142.5°≤ku≤ 1/cos7.5 °) every phase vice-side winding s2, s3 voltage vector it is in opposite direction, i.e., Same Name of Ends is reverse, each winding
The relation of vector length and voltage change ratio：
When the self coupling transformation reorganizer is operated in boost mode, transformer each winding voltage vector length per mutually former secondary
Degree is with meeting certain relation to realize that transformer is equal per phase output voltage amplitude between voltage change ratio, phase differs 15 °, together
When boosting regulation carried out to transformer output voltage according to voltage change ratio.Voltage vector of the transformer per phase primary side winding p1, p5
(i.e. voltage change ratio scope is when direction is operated in decompression mode (a) with the transformer：sin30°/sin142.5°≤ku≤1/
Cos7.5 °) voltage vector per phase primary side winding p1, p5 is in opposite direction, i.e., and Same Name of Ends is reverse.Transformer output-input voltage ratio
Value scope is：1/cos7.5 ° of ＜ ku≤ sin150 °/sin22.5 ° when, derive each winding voltage vector length of transformer primary secondary
(accompanying drawing 7 is derivation graph of a relation)：
In Δ Nao, ∠ aNo=7.5 °, ∠ Nao=30 °, so：∠ Noa=142.5 ° apply triangle sine
Understand：
So
In Δ a01oa3In, ∠ oa01a3=60 °, ∠ a01oa3=37.5 ° of ∠ a01a3It is o=82.5 °, sinusoidal using triangle
Theorem is understood：
So
Due to Δ a01ac04It is equilateral triangle, so a01A=ac04=a01c04, it is known that：
ac04=a01O-ao, c04a3=a01a3-a01c04
In Δ a3a02a4In, ∠ a3a02a4=120 °, ∠ a02a3a4=45 °, ∠ a02a4a3It is=15 °, sinusoidal using triangle
Theorem is understood：
In Δ Na4b1In, ∠ a4Nb1=75 °, ∠ Na4b1=∠ Nb1a4=52.5 °, understood using triangle sine：
The relation of each winding vector length and voltage change ratio：
The arteries and veins aviation self coupling vertoro of step-up/down formula 24 is a kind of self coupling vertoro of symmetric form, 4 groups of rectifications
Bridge circuit passes through paralleing reactor Parallel opertation.The output plus terminal of rectifier bridge (1) is connected balance with the output plus terminal of rectifier bridge (3)
Reactor Lp1, rectifier bridge (2) is connected paralleing reactor L with the output plus terminal of rectifier bridge (4)p2, paralleing reactor Lp1Centre take out
Head and Lp2Centre tap be connected respectively to paralleing reactor Lp5Both ends, paralleing reactor Lp5Centre tap for become repoussage
Flow device output plus terminal；The output negative terminal of rectifier bridge (1) is connected paralleing reactor L with the output negative terminal of rectifier bridge (3)p3, rectifier bridge
(2) output negative terminal is connected paralleing reactor L with the output negative terminal of rectifier bridge (4)p4, paralleing reactor Lp3Centre tap and
Lp4Centre tap be connected respectively to paralleing reactor Lp6Both ends, paralleing reactor Lp6Centre tap be vertoro
Export negative terminal.
Beneficial effect：The arteries and veins self coupling vertoro of step-up/down formula 24 provided by the invention can be realized to output voltage
Step-up/down regulation, meet the requirement of different voltage class.Auto-transformer winding closes, and reduces transformer leakage inductance.Certainly simultaneously
Coupling transformer imput current is 24 staircase waveforms, is mainly contained 23 times, 25 subharmonic, and harmonic content is less than 8%, exports DC voltage
Containing 24 pulse waves, voltage ripple is small, is filtered without bulky capacitor.
Brief description of the drawings
The arteries and veins self coupling vertoro of 1 step-up/down formula of accompanying drawing 24；
The buck auto-transformer winding technique figure of accompanying drawing 2；
The buck auto-transformer winding voltage polar plot of accompanying drawing 3；
The boost type auto-transformer group of accompanying drawing 4 is around drawing；
The boost type auto-transformer winding voltage polar plot of accompanying drawing 5；
The buck umber of turn of accompanying drawing 6 is than relation derivation figure；
The boost type umber of turn of accompanying drawing 7 is than relation derivation figure；
Accompanying drawing 8 is A phases input current and voltage simulation waveform (ku=0.5)；
Accompanying drawing 9 is A phase Input current spectrum analysis (ku=0.5)；
Accompanying drawing 10 is transformer A phase output voltages (ku=0.5)；
Accompanying drawing 11 is transformation reorganizer output voltage simulation waveform (ku=0.5)；
Primary symbols explanation in accompanying drawing above：ia, ib, ic- input phase current, ai, bi, ci(i=1 ..., 4)-A, B, C
Phase voltage output end, a0ib0i, c0i(i=1,2,3,4)-A, B, C phase winding end label, LpiThe reactance of (i=1 ..., 6)-balance
Device, p1, p2, p3, p4, p5- transformers are per phase primary side winding, and s1, s2, s3, s4- transformers are per phase vice-side winding, VaN- A is mutually defeated
Enter phase voltage,(i=1 ..., 4)-A mutually exports phase voltage
Embodiment
Technical solution of the present invention is described in detail below, but protection scope of the present invention is not limited to the implementation
Example.
Embodiment：Accompanying drawing 1 show the arteries and veins self coupling vertoro of step-up/down formula 24, including：Step-up/down formula phase shift
Auto-transformer, three-phase commutation bridge and paralleing reactor.Accompanying drawing 2 show buck auto-transformer winding technique figure, accompanying drawing 3
It show decompression mode auto-transformer winding voltage polar plot.5 windings of the every phase primary side of the auto-transformer (p1, p2,
P3, p4, p5), 4 windings (s1, s2, s3, s4) of secondary, each winding head end is Same Name of Ends, and primary side winding electric current is from Same Name of Ends stream
Enter, secondary winding current flows out from Same Name of Ends.Transformer specifically describes per phase winding connected mode by taking A phases as an example.A phases primary side around
Group p1 (aa01) end a01With B phase vice-side winding s2 (a3a01) end a01Connection, s2 (a3a01) head end be voltage output
Hold a3(i.e.), B phase vice-side winding s2 (a3a01) head end a3With A phase primary side winding p2 (a3a02)
Head end connects, p2 (a3a02) end a02Connect B phase vice-side winding s1 (a4a02) end a02, s1 (a4a02) head end for electricity
Press output end a4(i.e.), while B phase vice-side winding s1 (a4a02) head end a4Connect A phases primary side around
Group p3 (a4b1) head end, participate in synthesis B phase output voltages；A phase primary side winding p1 (aa01) head end a be A phase power inputs
End, p1 (aa01) head end a connection C phase primary side winding p5 (c04A) end a, p5 (c04A) head end c04Connect B phase vice-side windings
s3(c04a2) head end, s3 end is voltage output end a2(i.e.), B phase vice-side windings s3
(c04a2) end a2With C phase primary side winding p4 (c03a2) end connection a2, p4 (c03a2) head end c03Connect B phases secondary around
Group s4 (c03a1) head end, s4 (c03a1) end be voltage output end a1(i.e.), while B phases are secondary
Side winding s4 (c03a1) end a1Connect C phase primary side winding p3 (c4a1) end a1, participation synthesis C phase output voltages, B phases,
The winding connection of C phases is similar to A phases.
Transformer is operated in every phase primary side winding and decompression mode (a) during decompression mode (b), and unanimously, winding head end is of the same name
End, vice-side winding s2, s3 voltage vector direction with decompression mode (a) on the contrary, and Same Name of Ends it is reverse.Synthesized with A phase voltages
Example is B phase vice-side winding s2 (a3a01), s3 (c04a2) Same Name of Ends it is reverse, Same Name of Ends is winding ends, other Motor Winding Same Name of Ends
Keep constant.Electric current per phase primary side winding flows into from Same Name of Ends, and vice-side winding s2, s3 electric current flow into from Same Name of Ends, secondary
Winding s1, s4 electric current flow out from Same Name of Ends.Connected mode of the transformer per mutually each winding is consistent with decompression mode (a).
Boost mode auto-transformer winding technique figure shown in accompanying drawing 4, accompanying drawing 5 are boost type auto-transformer winding voltage
Polar plot.Transformer is winding ends per phase primary side winding p1, p5 Same Name of Ends during boost mode, i.e. winding voltage vector is anti-
To.It is primary side winding p1 (aa by taking A phases as an example01), p5 (a04B) Same Name of Ends is winding ends.Primary side winding electric current is from Same Name of Ends
Flow into, secondary winding current flows out from Same Name of Ends.Transformer Winding connected mode describes in detail by taking A phases as an example：A phase primary side windings
p1(aa01) head end a be A phase power inputs, p1 ends a01Connect B phase vice-side winding s3 (a01a2) head end, s3 end
For voltage output end a2, B phase vice-side winding s3 (a01a2) end a2With C phase primary side winding p4 (c03a2) end a2Connection, p4
Head end c03Connect B phase vice-side winding s4 (c03a1) head end c03, s4 end is voltage output end a1, while B phases secondary around
Group s4 (c03a1) end a1Connect C phase primary side winding p3 (c4a1) end, participate in synthesis C phase output voltages, A phases primary side around
Group p1 (aa01) head end a and C phase primary side winding p5 (c04A) end a connections, p5 (c04A) head end c04Connect B phases secondary around
Group s2 (a3c04) end c04, s2 (a3c04) head end be voltage output end a3, B phase vice-side winding s2 (a3c04) head end a3With
A phase primary side winding p2 (a3a02) head end a3Connection, p2 (a3a02) end a02Connect B phase vice-side winding s1 (a4a02) end
a02, s1 head end is voltage output end a4, while B phase vice-side winding s1 (a4a02) head end a4Connect A phase primary side windings p3
(a4b1) head end, participate in synthesis B phase output voltages, descend the A phase output voltage vector relations to be in a boost mode：
B phases, the winding connection of C phases are similar to A phases.
Auto-transformer is equal per phase output voltage amplitude, 15 ° of phase mutual deviation, while according to voltage change ratio requirement to output
Voltage carries out step-up/down regulation.To realize this purpose, auto-transformer per each winding voltage vector length of mutually former secondary and
Meet certain relation between voltage change ratio.Voltage change ratiokpi, ksiFor corresponding winding voltage vector length,
Assuming that input voltage vector length is 1, then transformer output voltage vector length is ku.Each winding is specifically described by taking A phases as an example
The relation of voltage vector length and voltage change ratio.In the case of decompression mode (a)：No-load voltage ratio scope is：sin30°/sin142.5°≤
ku≤1/cos7.5°.Accompanying drawing 6 show winding voltage vector correlation derivation graph in the case of decompression mode (a).
In Δ oNa3In, ∠ oNa3=7.5 °, so：
ON=Na3* cos7.5 °, oa3=Na3* sin7.5 °, oa=aN-Na3*cos7.5°
In Δ oaa3In, ∠ oaa01=30 °, so：
aa01=oa/cos30 °, oa01=oa*tan30 °, a01a3=oa3-oa01
So：
In Δ Na3a4In, ∠ a3Na4=15 °, ∠ Na3a4=∠ Na4a3=82.5 °, obtained using sine：
Then
In Δ a3a02a4In, ∠ a3a02a4=120 °, ∠ a02a3a4=45 °, ∠ a02a4a3It is=15 °, sinusoidal using triangle
Theorem is understood：
In Δ Na4b1In, ∠ a4Nb1=75 °, ∠ Na461=∠ Nb1a4=52.5 °, understood using triangle sine：
So：
Each winding voltage vector length of B phase C phases is consistent with A.In the case of decompression mode (b), no-load voltage ratio scope is：0.45 ＜
ku＜ sin30 °/sin142.5 °, each winding voltage vector length derivation of transformer are similar to aforesaid way.Using A phases as
Example：The relation of each winding vector length and voltage change ratio： B phase C phases
Each winding voltage vector length is consistent with A.
Transformer output-input voltage ratio range is during boost mode：1/cos7.5 ° of ＜ ku≤sin150°/
sin22.5°.Accompanying drawing 7 show winding voltage vector correlation derivation graph under boost mode.Each winding vector length and voltage change ratio
Relation：
In Δ Nao ,/aNo=7.5 °, ∠ Nao=30 °, so：∠ Noa=142.5 ° apply triangle sine
Understand：
So
In Δ a01oa3In, ∠ oa01a3=60 ° ,/a01oa3=37.5 °/a01a3It is o=82.5 °, sinusoidal fixed using triangle
Reason is understood：
So
Due to Δ a01ac04It is equilateral triangle, so a01A=ac04=a01c04, it is known that：
ac04=a01O-ao, c04a3=a01a3-a01c04
So：
In Δ a3a02a4In ,/a3a02a4=120 °, ∠ a02a3a4=45 ° ,/a02a4a3It is=15 °, sinusoidal fixed using triangle
Reason is understood：
In Δ Na4b1In, ∠ a4Nb1=75 °, ∠ Na4b1=∠ Nb1a4=52.5 °, understood using triangle sine：
So：
Each winding voltage vector length of B phase C phases is consistent with A.
The arteries and veins aviation self coupling vertoro of step-up/down formula 24 is a kind of self coupling vertoro of symmetric form, 4 groups of rectifications
Bridge circuit passes through paralleing reactor Parallel opertation.Rectifier bridge (1) connects respectively with the output plus terminal of rectifier bridge (3), output negative terminal
Meet paralleing reactor Lp1、Lp3, output plus terminal, the output negative terminal of rectifier bridge (2) and rectifier bridge (4) are connected paralleing reactor respectively
Lp2、Lp4, paralleing reactor and Lp2Centre tap be connected respectively to paralleing reactor Lp5Both ends, paralleing reactor Lp3And Lp4
Centre tap be connected respectively to paralleing reactor Lp6Both ends, paralleing reactor Lp5、Lp6Centre tap be respectively become repoussage
Device output plus terminal is flowed, exports negative terminal.Vertoro output voltage meets relation with input voltage：Vo≈2.34VoiN=2.34*
ku*Vin=1.17Vin。
To verify effectiveness of the invention, with the arteries and veins self coupling vertoro of step-up/down formula in accompanying drawing 1 24, shown in accompanying drawing 3
Buck auto-transformer winding voltage polar plot, wherein voltage change ratioExemplified by carry out emulation real
Test.Voltage change ratio kuWhen=0.5, it is assumed that input voltage vector length is 1, then transformer output voltage vector length is 0.5.Root
Understood according to above-mentioned derivation： Each winding voltage vector length of B phase C phases is consistent with A.In Matlab/
Simulation model is built in Simulink, system input is 115V/400Hz three-phase alternating currents.Accompanying drawing 8 show buck and becomes repoussage
The input current waveform of streaming system.Input current shown in figure is 24 staircase waveforms, and input current is kept with input voltage phase
Unanimously, there is High Power Factor.Accompanying drawing 9 show the spectrum analysis figure of A phase input currents, input current mainly containing 23 times, 25
Subharmonic, total harmonic distortion 5.32%, meet aviation field Harmonics of Input standard.The auto-transformer A phases of accompanying drawing 10 are defeated
Go out voltage pattern, a1、a2、a3、a415 ° of voltage-phase mutual deviation, and voltage effective value is 57.61V, for input phase voltage virtual value
Half, meet voltage change ratio relation.Accompanying drawing 11 is VD waveform, output voltage virtual value 134.7V, voltage ripple
Small, voltage pulsating factor is only 0.07%, output voltage stabilization.
Claims (3)
1. the arteries and veins self coupling vertoro of step-up/down formula 24, it is characterised in that：Every phase 5 windings of primary side of auto-transformer, including
Winding p3 1 long and winding p1, p2, p4, p5 4 short, secondary 4 windings s1, s2, s3, s4；During decompression mode, by taking A phases as an example
Winding connection is described in detail, A phase primary side windings p1 head end is A phase power inputs, and p1 head ends connect C phase primary side windings
P5 end, p5 head end connection B phase vice-side windings s3 head end, s3 end is voltage output end a2(i.e.), B phase vice-side windings s3 end is connected with C phase primary side windings p4 end, and p4 head end connects
B phase vice-side windings s4 head end is connect, s4 end is voltage output end a1(i.e.), while B phases
Vice-side winding s4 end connection C phase primary side windings p3 end, participates in synthesis C phase output voltages, A phase primary side windings p1 end
End is connected with B phase vice-side windings s2 end, and s2 head end is voltage output end a3(i.e.), B phases
Vice-side winding s2 head end is connected with A phase primary side windings p2 head end, p2 end connection B phase vice-side windings s1 end, s1
Head end be voltage output end a4(i.e.), while B phase vice-side windings s1 head end connection A phases
Primary side winding p3 head end, participation synthesis B phase output voltages, B phases, the winding connection of C phases are similar to A phases；Boost mode
Connected mode of the lower transformer per phase winding, by taking A phases as an example, A phase primary side windings p1 head end is A phase power inputs, and p1 is last
End connection B phase vice-side windings s3 head end, s3 end is voltage output end a2(i.e.), B phases are secondary
Side winding s3 end is connected with C phase primary side windings p4 end, p4 head end connection B phase vice-side windings s4 head end, s4's
End is voltage output end a1(i.e.), while B phase vice-side windings s4 end connection C phase primary sides
Winding p3 end, participates in synthesis C phase output voltages, and A phase primary side windings p1 head end connects with C phase primary side windings p5 end
Connect, p5 head end connection B phase vice-side windings s2 end, s2 head end is voltage output end a3(i.e.), B phase vice-side windings s2 head end is connected with A phase primary side windings p2 head end, and p2 end connects
B phase vice-side windings s1 end is connect, s1 head end is voltage output end a4(i.e.), while B phases
Vice-side winding s1 head end connection A phase primary side windings p3 head end, participate in synthesis B phase output voltages, B phases, the winding connection of C phases
Mode is similar to A phases.
2. the arteries and veins self coupling vertoro of step-up/down formula 24 according to claim 1, in the self coupling vertoro
When being operated in decompression mode, according to transformer output voltage (by taking A phases as an example) and transformer input voltage (by taking A phases as an example
VaN) the ratio between ku The voltage vector length of each winding of Design of Transformer original secondary, to obtain per 4 groups of phases of phase
The equal transformer secondary voltage of 15 ° of shifting, amplitude, it is a by taking A phases as an example1、a2、a3、a415 ° of outlet voltage phase mutual deviation,
Amplitude is equal, and transformer is expressed as k per phase primary side winding voltage vector lengthp1, kp2, kp3, kp4, kp5, vice-side winding electricity
Pressure vector length is expressed as ks1, ks2, ks3, ks4, it is assumed that input voltage vector length is 1, then transformer is per mutually output phase electricity
Pressure vector length is ku, the score of transformer output-input voltage is into 2 different scopes：Decompression mode (a)：sin30°/
sin142.5°≤ku≤ 1/cos7.5 ° and decompression mode (b)：0.45 ＜ ku＜ sin30 °/sin142.5 °, when transformer exports
Input voltage ratio is in sin30 °/sin142.5 °≤k of scopeu≤ 1/cos7.5 ° in, i.e., decompression mode (a) when, transformer is per phase
Each umber of turn voltage vector length is with voltage change ratio relation：
When transformer output-input voltage ratio is in scope：0.45 ＜ ku＜ sin30 °/sin142.5 ° i.e. decompression mode (b) when, become
Depressor is sweared per phase vice-side winding s2, s3 voltage vector direction with transformer during decompression mode (a) per phase vice-side winding s2, s3 voltage
Amount is in opposite direction, i.e., Same Name of Ends is reverse, the relation of each winding vector length and voltage change ratio：
3. the arteries and veins self coupling vertoro of step-up/down formula 24 according to claim 2, is operated in the auto-transformer
During boost mode, voltage vector direction of the transformer per phase primary side winding p1, p5 and the transformer output input electricity of claim 2
Pressure ratio is in sin30 °/sin142.5 °≤k of scopeu≤ 1/cos7.5 ° in i.e. decompression mode (a) when transformer per phase primary side winding
P1, p5 voltage vector are in opposite direction, i.e., Same Name of Ends is reverse；Per the voltage vector length and voltage change ratio of each winding of mutually former secondary
There is certain relation so that 15 ° of output voltage phase mutual deviation, amplitude is equal, while realizes and carry out boosting regulation to output voltage；
Transformer output-input voltage no-load voltage ratio scope is：1/cos7.5 ° of ＜ ku≤ sin150 °/sin22.5 °, each winding vector length with
The relation of voltage change ratio：
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| CN103187885A (en) * | 2012-01-03 | 2013-07-03 | 霍尼韦尔国际公司 | Composite ac-to-dc oower converter using wye architecture |
| CN104980047A (en) * | 2015-06-15 | 2015-10-14 | 南京航空航天大学 | 24 pulse aviation self-coupling transformer rectifier based on star-shaped primary-side winding phase shift |
| CN105006982A (en) * | 2015-07-08 | 2015-10-28 | 南京航空航天大学 | P-type 24-pulse aviation self-coupling transformation rectifier |
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| US8315071B2 (en) * | 2009-11-03 | 2012-11-20 | Honeywell International Inc. | Composite 24-pulse AC to DC power converter having a main rectifier and multiple auxiliary rectifiers |
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| CN103187885A (en) * | 2012-01-03 | 2013-07-03 | 霍尼韦尔国际公司 | Composite ac-to-dc oower converter using wye architecture |
| CN104980047A (en) * | 2015-06-15 | 2015-10-14 | 南京航空航天大学 | 24 pulse aviation self-coupling transformer rectifier based on star-shaped primary-side winding phase shift |
| CN105006982A (en) * | 2015-07-08 | 2015-10-28 | 南京航空航天大学 | P-type 24-pulse aviation self-coupling transformation rectifier |
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