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CN106452135A - Power distribution transformer rectifier - Google Patents

Power distribution transformer rectifier Download PDF

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Publication number
CN106452135A
CN106452135A CN201610989970.8A CN201610989970A CN106452135A CN 106452135 A CN106452135 A CN 106452135A CN 201610989970 A CN201610989970 A CN 201610989970A CN 106452135 A CN106452135 A CN 106452135A
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China
Prior art keywords
winding
phase
little
big
rectifier bridge
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CN201610989970.8A
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CN106452135B (en
Inventor
叶阳
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Shenzhen Lvdian Dc Electrical Technology Co ltd
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Shanghai Hongyu Electric Technology Co Ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/21Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/217Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M7/23Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only arranged for operation in parallel
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS 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
    • H02M1/00Details of apparatus for conversion
    • H02M1/10Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Rectifiers (AREA)

Abstract

The invention discloses a power distribution transformer rectifier which comprises a group of primary-side windings (Y), at least two groups of secondary-side windings (Z) and at least two rectifier bridges (D), wherein the secondary-side windings (Z) are connected with the rectifier bridges (D) in a one-to-one correspondening manner; the primary-side windings (Y) are in delta connection; the secondary-side windings (Z) comprise a group of secondary-side primary windings (Za) and at least one group of secondary-side secondary windings (Zb); the secondary-side primary windings (Za) are in star connection; and the product of the phase difference between the secondary-side primary winding (Za) and the secondary-side secondary winding (Zb) and the number of the secondary-side windings (Z) is 60 degrees. A power distribution transformer provided by the invention can convert the original two-level power into one-level power, then the loss and cost are reduced, and the reliability is improved; and the power distribution transformer rectifier provided by the invention can output three-phase alternating current and direct current at the same time so that a user can conveniently use the two voltage systems at the same time.

Description

Distribution transformer commutator
Technical field
The present invention relates to field of conversion of electrical energy is and in particular to one kind can export three-phase alternating voltage and DC voltage simultaneously Distribution transformer commutator.
Background technology
The electric power access of user side completes typically by a 10kV distribution transformer.This distribution transformer handle 10kV AC distribution voltage is reduced to 380V exchange commercial power.If user needs DC dynamo electricity, need in three-phase alternating current Carry out power converter on the basis of 380V.At present, power converter mainly has two ways, and (1) adopts three-phase active rectification scheme, As shown in Figure 1;(2) adopt multiple-pulse Transformer Rectifier scheme, as shown in Figure 2.
The common problem of both schemes is during power transformation to be required for increasing a power converter link so that electricity Power loss increases, cost increase.
Content of the invention
The present invention is to need when user needs DC dynamo power supply in prior art additionally to increase an electricity to overcome Force transformation link is so that power consumption increases, and then leads to the problem that cost is substantially increased, and provides a kind of distribution transformer rectification Device, can export three-phase alternating current and unidirectional current, user-friendly selection simultaneously.
The present invention provides a kind of distribution transformer commutator, including:
Change in voltage module:The voltage of the alternating current providing for transition electric power system;
Voltage transformation module:For described alternating current is converted to unidirectional current;
Output module:For alternating current after change in voltage module for the output, for output through voltage transformation module Unidirectional current.
A kind of distribution transformer commutator of the present invention, it is preferred that, output module includes:
AC output module:For alternating current after described change in voltage module for the output;
Direct current output module:For unidirectional current after described voltage transformation module for the output.
A kind of distribution transformer commutator of the present invention, it is preferred that, described distribution transformer commutator includes one Group primary side winding, at least two groups vice-side winding and at least two rectifier bridges, vice-side winding is connected with rectifier bridge and corresponds.
A kind of distribution transformer commutator of the present invention, it is preferred that, primary side winding includes A phase, B phase, C phase, For delta connection.
A kind of distribution transformer commutator of the present invention, it is preferred that, vice-side winding include one group of secondary master around Group and least one set secondary auxiliary winding, secondary main winding includes a phase, b phase, c phase, is star connection, secondary main winding and secondary The product of the phase contrast of auxiliary winding and vice-side winding number is 60 °.
A kind of distribution transformer commutator of the present invention, it is preferred that, vice-side winding include secondary main winding and First secondary auxiliary winding, secondary main winding is star connection, and the first secondary auxiliary winding is delta connection, the first secondary auxiliary winding It is 30 ° with the phase contrast of secondary main winding, secondary main winding is connected with the first rectifier bridge, the first secondary auxiliary winding and the second rectification Bridge is connected.This optimal way is applied to 12 pulse transforming commutators.
A kind of distribution transformer commutator of the present invention, it is preferred that, vice-side winding include secondary main winding, One secondary auxiliary winding and the second secondary auxiliary winding;Secondary main winding is star connection;First secondary auxiliary winding includes the first secondary Big winding and the little winding of the first secondary, the big winding of the first secondary is wye connection, including the first secondary big winding a phase, the first pair Side big winding b phase and the first secondary big winding c phase, it is little that the little winding of the first secondary includes the first secondary little winding a phase, the first secondary Winding b phase and the first secondary little winding c phase, the first secondary big winding a phase passes through the first secondary little winding c phase and the second rectifier bridge It is connected, the first secondary big winding b phase is connected with the second rectifier bridge by the first secondary little winding a phase, the first secondary big winding c phase It is connected with the second rectifier bridge by the first secondary little winding b phase, the first secondary auxiliary winding with the phase contrast of secondary main winding is 20°;Second secondary auxiliary winding includes the big winding of the second secondary and the little winding of the second secondary, and the big winding of the second secondary is star-like connecing Method, including the second secondary big winding a phase, the second secondary big winding b phase and the second secondary big winding c phase, the little winding of the second secondary Including the second secondary little winding a phase, the second secondary little winding b phase and the second secondary little winding c phase, the second secondary big winding a phase It is connected with the 3rd rectifier bridge by the second secondary little winding b phase, the second secondary big winding b phase passes through the second secondary little winding c phase It is connected with the 3rd rectifier bridge, the second secondary big winding c phase is connected with the 3rd rectifier bridge by the second secondary little winding a phase, second Secondary auxiliary winding is 20 ° with the phase contrast of secondary main winding, and the second secondary auxiliary winding with the phase contrast of the first secondary auxiliary winding is 40°.This optimal way is applied to 18 pulse transforming commutators.
A kind of distribution transformer commutator of the present invention, it is preferred that, vice-side winding include secondary main winding, One secondary auxiliary winding, the second secondary auxiliary winding and the 3rd secondary auxiliary winding;Secondary main winding is star connection;First secondary pair around Group includes the big winding of the first secondary and the little winding of the first secondary, and the big winding of the first secondary is wye connection, big including the first secondary Winding a phase, the first secondary big winding b phase and the first secondary big winding c phase, the little winding of the first secondary includes the little winding of the first secondary A phase, the first secondary little winding b phase and the first secondary little winding c phase, the first secondary big winding a phase passes through the first secondary little winding c It is connected with the second rectifier bridge, the first secondary big winding b phase is connected with the second rectifier bridge by the first secondary little winding a phase, the One secondary big winding c phase is connected with the second rectifier bridge by the first secondary little winding b phase, the first secondary auxiliary winding and secondary master around The phase contrast of group is 15 °;Second secondary auxiliary winding includes the big winding of the second secondary and the little winding of the second secondary, the second secondary greatly around Organize as wye connection, including the second secondary big winding a phase, the second secondary big winding b phase and the second secondary big winding c phase, second The little winding of secondary includes the second secondary little winding a phase, the second secondary little winding b phase and the second secondary little winding c phase, the second secondary Big winding a phase is connected with the 3rd rectifier bridge by the second secondary little winding b phase, and the second secondary big winding b phase passes through the second secondary Little winding c phase is connected with the 3rd rectifier bridge, and the second secondary big winding c phase passes through the second secondary little winding a phase and the 3rd rectifier bridge It is connected, the phase contrast of the second secondary auxiliary winding and secondary main winding is 15 °, the second secondary auxiliary winding and the first secondary auxiliary winding Phase contrast is 30 °;3rd secondary auxiliary winding is delta connection, is connected with the 4th rectifier bridge, the 3rd secondary auxiliary winding and secondary The phase contrast of main winding is 30 °.This optimal way is applied to 24 pulse transforming commutators.
A kind of distribution transformer commutator of the present invention, it is preferred that, the line diameter ratio secondary pair of secondary main winding Winding is thick.By the adjustment of line footpath can be adjusted with exchange capacity and the D.C. capacity of output, secondary main winding exports friendship simultaneously Stream power and dc power, secondary auxiliary winding only exports dc power, and the line diameter ratio secondary auxiliary winding of therefore secondary main winding is thick.
A kind of distribution transformer commutator of the present invention, it is preferred that, secondary main winding includes least one set and takes out Head.Secondary main winding carries out tap and is designed to the voltages different by different tap outputs, increased the selectivity of user.
The present invention, due to integrating multiple-pulse vertoro with 10kV distribution transformer, makes original two-stage electricity Force transformation is changed into one-level, thus reducing loss, reduces cost, and also improve reliability, a kind of distribution that the present invention provides simultaneously Vertoro can export three-phase alternating current and unidirectional current simultaneously, facilitates user simultaneously using both voltage systems.
Brief description
Fig. 1 is three-phase active rectification schematic diagram in prior art;
Fig. 2 is multiple-pulse Transformer Rectifier schematic diagram in prior art;
Fig. 3 is a kind of distribution transformer commutator composition figure;
Fig. 4 is a kind of distribution transformer commutator output module composition figure;
Fig. 5 is a kind of distribution transformer commutator schematic diagram;
Fig. 6 is a kind of distribution transformer commutator schematic diagram in embodiment 1;
Fig. 7 is a kind of distribution transformer commutator schematic diagram in embodiment 2;
Fig. 8 is a kind of distribution transformer commutator schematic diagram in embodiment 3.
Reference:Y, primary side winding;Z, vice-side winding;Za, secondary main winding;Zb, secondary auxiliary winding;Zb1, the first pair Side auxiliary winding;Zb1A, the big winding of the first secondary;Zb1B, the little winding of the first secondary;Zb2, the second secondary auxiliary winding;Zb2A, second The big winding of secondary;Zb2B, the little winding of the second secondary;Zb3, the 3rd secondary auxiliary winding;Zbn, the n-th secondary auxiliary winding;D, rectifier bridge; D1, the first rectifier bridge;D2, the second rectifier bridge;D3, the 3rd rectifier bridge;D4, the 4th rectifier bridge;Dn, the n-th rectifier bridge;NAB, former limit The number of turn between winding A phase and B phase;The number of turn between NBC, primary side winding B phase and C phase;NCA, primary side winding C phase and A phase it Between the number of turn;Na, the number of turn of secondary main winding a phase;Nb, the number of turn of secondary main winding b phase;Nc, the circle of secondary main winding c phase Number;The number of turn at Na1, secondary main winding a phase tap;The number of turn at Nb1, secondary main winding b phase tap;Nc1, secondary main winding The number of turn at c phase tap;The number of turn between Na2b2, the first secondary auxiliary winding a phase and b phase;Nb2c2, the first secondary auxiliary winding b The mutually number of turn and c phase between;The number of turn between Nc2a2, the first secondary auxiliary winding c phase and a phase;Na2, the first secondary big winding a The phase number of turn;Nb2, the first secondary big winding b phase number of turn;Nc2, the first secondary big winding c phase number of turn;Na2 ', the first secondary little around The group a phase number of turn;Nb2 ', the first secondary little winding b phase number of turn;Nc2 ', the first secondary little winding c phase number of turn;Na3, the second secondary The big winding a phase number of turn;Nb3, the second secondary big winding b phase number of turn;Nc3, the second secondary big winding c phase number of turn;Na3 ', the second pair The side little winding a phase number of turn;Nb3 ', the second secondary little winding b phase number of turn;Nc3 ', the second secondary little winding c phase number of turn;Na4b4、 The number of turn between 3rd secondary auxiliary winding a phase and b phase;The number of turn between Nb4c4, the 3rd secondary auxiliary winding b phase and c phase; The number of turn between Nc4a4, the 3rd secondary auxiliary winding c phase and a phase.
Specific embodiment
As seen in figures 3-5, the present invention provides a kind of distribution transformer commutator, including provide for transition electric power system The change in voltage module 100 of the voltage of alternating current, for described alternating current is converted to galvanic voltage transformation module 200 and For alternating current after change in voltage module for the output and the galvanic output module 300 through voltage transformation module; Wherein output module 300 includes for output the AC output module 310 of alternating current and for defeated after change in voltage module Go out galvanic direct current output module 320 after described voltage transformation module.
A kind of distribution transformer commutator that the present invention provides, includes one group of primary side winding Y, at least two groups vice-side winding Z with At least two rectifier bridge D, vice-side winding Z are connected with rectifier bridge D and correspond;Primary side winding Y includes A phase, B phase, C phase, is Delta connection;Vice-side winding Z includes one group of secondary main winding Za and least one set secondary auxiliary winding Zb, secondary main winding Za bag Include a phase, b phase, c phase, be star connection, the phase contrast of secondary main winding Za and secondary auxiliary winding Zb and vice-side winding Z number Product is 60 °.
Embodiment 1
As shown in fig. 6, the present invention provides a kind of 12 pulse distribution transformer commutators, including primary side winding Y, secondary main winding Za, the first secondary auxiliary winding Zb1, the first rectifier bridge D1 and the second rectifier bridge D2.
Primary side winding Y is delta connection, is connected to 10kV power distribution network, the number of turn of primary side winding Y is NAB=NBC=NCA= Np, wherein NAB are the numbers of turn of the winding between primary side winding A phase and primary side winding B phase;NBC be primary side winding B phase and former limit around The number of turn of the winding between group C phase;NCA is the number of turn of the winding between primary side winding C phase and primary side winding A phase.
Secondary main winding Za is star connection, and the number of turn is Na=Nb=Nc=Ns, and wherein Na is the circle of secondary main winding a phase Number;Nb is the number of turn of secondary main winding b phase;Nc is the number of turn of secondary main winding c phase.The line voltage of secondary main winding Za is output as 380V alternating current, phase voltage is output as 220V alternating current.Relation between therefore Np and Ns is Np/Ns=10kV/220V, or Ns =0.022Np.According to the DC voltage amplitude of required output, at the Na1 of secondary main winding a phase, secondary main winding b phase Carry out tap process, the wherein number of turn is Na1=Nb1=Nc1=N1 at Nb1 and at the Nc1 of secondary main winding c phase.Direct current output Voltage is Vdc=N1/Ns*Wherein Vp is exchange output phase voltage.Because exchange output phase voltage is 220V, therefore VD are Vdc=540 × N1/Ns, and at tap, the number of turn is N1=Vdc/540*Ns.Work as output voltage During for 540V, N1=Ns.Secondary main winding Za tap at N1 forms first group of output of DC side, is connected to the first rectifier bridge D1 Input.
First secondary auxiliary winding Zb1 is delta connection, and the number of turn is Na2b2=Nb2c2=Nc2a2=N2, wherein Na2b2 It is the number of turn between the first secondary auxiliary winding a phase and the first secondary auxiliary winding b phase;Nb2c2 is the first secondary auxiliary winding b phase and The number of turn between one secondary auxiliary winding c phase;Nc2a2 is the circle between the first secondary auxiliary winding c phase and the first secondary auxiliary winding a phase Number.The line voltage of tap at N1 is consistent with secondary main winding Za for the line voltage amplitude of the first secondary auxiliary winding Zb1 output, and phase 30 ° of phase difference, the relation of therefore N2 and N1 isSecond group of first secondary auxiliary winding Zb1 formation DC side defeated Go out, be connected to the input of the second rectifier bridge D2.
The outfan of the outfan of the first rectifier bridge D1 and the second rectifier bridge D2 is in parallel, is connected at direct current output electric capacity, shape Become direct voltage output.
Embodiment 2
As shown in fig. 7, the present invention provides a kind of 18 pulse distribution transformer commutators, including primary side winding Y, secondary main winding Za, the first secondary auxiliary winding Zb1, the second secondary auxiliary winding Zb2, the first rectifier bridge D1, the second rectifier bridge D2 and the 3rd rectifier bridge D3.
Primary side winding Y is delta connection, is connected to 10kV power distribution network, the number of turn of primary side winding Y is NAB=NBC=NCA= Np, wherein NAB are the numbers of turn of the winding between primary side winding A phase and primary side winding B phase;NBC be primary side winding B phase and former limit around The number of turn of the winding between group C phase;NCA is the number of turn of the winding between primary side winding C phase and primary side winding A phase.
Secondary main winding Za is star connection, and the number of turn is Na=Nb=Nc=Ns, and wherein Na is the circle of secondary main winding a phase Number;Nb is the number of turn of secondary main winding b phase;Nc is the number of turn of secondary main winding c phase.The line voltage of secondary main winding Za is output as 380V alternating current, phase voltage is output as 220V alternating current.Relation between therefore Np and Ns is Np/Ns=10kV/220V, or Ns =0.022Np.According to the DC voltage amplitude of required output, at the Na1 of secondary main winding a phase, secondary main winding b phase Carry out tap process, the wherein number of turn is Na1=Nb1=Nc1=N1 at Nb1 and at the Nc1 of secondary main winding c phase.Direct current output Voltage is Vdc=N1/Ns*Wherein Vp is exchange output phase voltage.Because exchange output phase voltage is 220V, therefore VD are Vdc=540 × N1/Ns, and at tap, the number of turn is N1=Vdc/540*Ns.Work as output voltage During for 540V, N1=Ns.Secondary main winding Za tap at N1 forms first group of output of DC side, is connected to the first rectifier bridge D1 Input.
First secondary auxiliary winding Zb1 divides including the first secondary big winding Zb1A and the first secondary little winding Zb1B, and wherein One secondary big winding Zb1A is star connection, including the first secondary big winding a phase, the first secondary big winding b phase and the first secondary Big winding c phase, the number of turn is Na2=Nb2=Nc2=N2, and wherein Na2 is the number of turn of the first secondary big winding a phase;Nb2 is first The number of turn of secondary big winding b phase;Nc2 is the number of turn of the first secondary big winding c phase.It is secondary that first secondary little winding Zb1B includes first Side little winding a phase, the first secondary little winding b phase and the first secondary little winding c phase, the first secondary big winding a phase and the first secondary Little winding c phase is connected, and the first secondary big winding b phase is connected with the first secondary little winding a phase, the first secondary big winding c phase and the One secondary little winding b phase is connected, and the number of turn is Na2 '=Nb2 '=Nc2 '=N2 ', and wherein Na2 ' is the first secondary little winding a phase The number of turn;Nb2 ' is the number of turn of the first secondary little winding b phase;Nc2 ' is the number of turn of the first secondary little winding c phase.First secondary little around The c phase other end of group Zb1B is connected with a phase input of the second rectifier bridge D2, a phase other end of the first secondary little winding Zb1B It is connected with the b phase input of the second rectifier bridge D2, the b phase other end of the first secondary little winding Zb1B and the c of the second rectifier bridge D2 Phase input is connected.In order to ensure the first secondary auxiliary winding Zb1 is identical with secondary main winding Za output voltage amplitude, the first secondary The phase contrast than secondary main winding Za for the auxiliary winding Zb1 falls behind 20 °, and the number of turn of the first secondary auxiliary winding Zb1 needs to meet:N2= 0.742N1, N2 '=0.395N1.First secondary pair forms second group of output of DC side around Zb1 group, is connected to the second rectifier bridge D2 Input.
Second secondary auxiliary winding Zb2 divides including the second secondary big winding Zb2A and the second secondary little winding Zb2B, and wherein Two secondary big winding Zb2A is star connection, including the second secondary big winding a phase, the second secondary big winding b phase and the second secondary Big winding c phase, the number of turn is Na3=Nb3=Nc3=N3, and wherein Na3 is the number of turn of the second secondary big winding a phase;Nb3 is second The number of turn of secondary big winding b phase;Nc3 is the number of turn of the first secondary big winding c phase.It is secondary that second secondary little winding Zb2B includes second Side little winding a phase, the second secondary little winding b phase and the second secondary little winding c phase, the second secondary big winding a phase and the second secondary Little winding b phase is connected, and the second secondary big winding b phase is connected with the second secondary little winding c phase, the second secondary big winding c phase and the Two secondary little winding a phase is connected, and the number of turn is Na3 '=Nb3 '=Nc3 '=N3 ', and wherein Na3 ' is the second secondary little winding a phase The number of turn;Nb3 ' is the number of turn of the second secondary little winding b phase;Nc3 ' is the number of turn of the second secondary little winding c phase.Second secondary little around The a phase other end of group Zb2B is connected with a phase input of the 3rd rectifier bridge D3, the c phase other end of the second secondary little winding Zb2B It is connected with the b phase input of the 3rd rectifier bridge D3, a phase other end of the second secondary little winding Zb2B and the c of the 3rd rectifier bridge D3 Phase input is connected.In order to ensure the second secondary auxiliary winding Zb2 is identical with secondary main winding Za output voltage amplitude, the second secondary The number of turn of leading than the phase contrast of secondary main winding Za 20 ° of auxiliary winding Zb2, the second secondary auxiliary winding Zb2 needs to meet:N2= 0.742N1, N2 '=0.395N1.Second secondary auxiliary winding Zb2 forms the 3rd group of output of DC side, is connected to the 3rd rectifier bridge D3 Input.
The outfan of the outfan of the first rectifier bridge D1, the outfan of the second rectifier bridge D2 and the 3rd rectifier bridge D3 is in parallel, It is connected at direct current output electric capacity, form direct voltage output.
Embodiment 3
As shown in figure 8, the present invention provides a kind of 24 pulse distribution transformer commutators, including primary side winding Y, secondary main winding Zb, the first secondary auxiliary winding Zb1, the second secondary auxiliary winding Zb2, the 3rd secondary auxiliary winding Zb3, the first rectifier bridge D1, second whole Stream bridge D2, the 3rd rectifier bridge D3 and the 4th rectifier bridge D4.
Primary side winding Y is delta connection, is connected to 10kV power distribution network, the number of turn of primary side winding Y is NAB=NBC=NCA= Np, wherein NAB are the numbers of turn of the winding between primary side winding A phase and primary side winding B phase;NBC be primary side winding B phase and former limit around The number of turn of the winding between group C phase;NCA is the number of turn of the winding between primary side winding C phase and primary side winding A phase.
Secondary main winding Za is star connection, and the number of turn is Na=Nb=Nc=Ns, and wherein Na is the circle of secondary main winding a phase Number;Nb is the number of turn of secondary main winding b phase;Nc is the number of turn of secondary main winding c phase.The line voltage of secondary main winding Za is output as 380V alternating current, phase voltage is output as 220V alternating current.Relation between therefore Np and Ns is Np/Ns=10kV/220V, or Ns =0.022Np.According to the DC voltage amplitude of required output, at the Na1 of secondary main winding a phase, secondary main winding b phase Carry out tap process, the wherein number of turn is Na1=Nb1=Nc1=N1 at Nb1 and at the Nc1 of secondary main winding c phase.Direct current output Voltage is Vdc=N1/Ns*Wherein Vp is exchange output phase voltage.Because exchange output phase voltage is 220V, therefore VD are Vdc=540 × N1/Ns, and at tap, the number of turn is N1=Vdc/540*Ns.Work as output voltage During for 540V, N1=Ns.Secondary main winding Za tap at N1 forms first group of output of DC side, is connected to the first rectifier bridge D1 Input.
First secondary auxiliary winding Zb1 divides including the first secondary big winding Zb1A and the first secondary little winding Zb1B, and wherein One secondary big winding Zb1A is star connection, including the first secondary big winding a phase, the first secondary big winding b phase and the first secondary Big winding c phase, the number of turn is Na2=Nb2=Nc2=N2, and wherein Na2 is the number of turn of the first secondary big winding a phase;Nb2 is first The number of turn of secondary big winding b phase;Nc2 is the number of turn of the first secondary big winding c phase.It is secondary that first secondary little winding Zb1B includes first Side little winding a phase, the first secondary little winding b phase and the first secondary little winding c phase, the first secondary big winding a phase and the first secondary Little winding c phase is connected, and the first secondary big winding b phase is connected with the first secondary little winding a phase, the first secondary big winding c phase and the One secondary little winding b phase is connected, and the number of turn is Na2 '=Nb2 '=Nc2 '=N2 ', and wherein Na2 ' is the first secondary little winding a phase The number of turn;Nb2 ' is the number of turn of the first secondary little winding b phase;Nc2 ' is the number of turn of the first secondary little winding c phase.First secondary little around The c phase other end of group Zb1B is connected with a phase input of the second rectifier bridge D2, a phase other end of the first secondary little winding Zb1B It is connected with the b phase input of the second rectifier bridge D2, the b phase other end of the first secondary little winding Zb1B and the c of the second rectifier bridge D2 Phase input is connected.In order to ensure the first secondary auxiliary winding Zb1 is identical with secondary main winding Za output voltage amplitude, the first secondary The phase contrast than secondary main winding Za for the auxiliary winding Zb1 falls behind 15 °, and the number of turn of the first secondary auxiliary winding Zb1 needs to meet:N2= 0.577N1, N2 '=0.299N1.First secondary auxiliary winding Zb1 forms second group of output of DC side, is connected to the second rectifier bridge D2 Input.
Second secondary auxiliary winding Zb2 divides including the second secondary big winding Zb2A and the second secondary little winding Zb2B, and wherein Two secondary big winding Zb2A is star connection, including the second secondary big winding a phase, the second secondary big winding b phase and the second secondary Big winding c phase, the number of turn is Na3=Nb3=Nc3=N3, and wherein Na3 is the number of turn of the second secondary big winding a phase;Nb3 is second The number of turn of secondary big winding b phase;Nc3 is the number of turn of the first secondary big winding c phase.It is secondary that second secondary little winding Zb2B includes second Side little winding a phase, the second secondary little winding b phase and the second secondary little winding c phase, the second secondary big winding a phase and the second secondary Little winding b phase is connected, and the second secondary big winding b phase is connected with the second secondary little winding c phase, the second secondary big winding c phase and the Two secondary little winding a phase is connected, and the number of turn is Na3 '=Nb3 '=Nc3 '=N3 ', and wherein Na3 ' is the second secondary little winding a phase The number of turn;Nb3 ' is the number of turn of the second secondary little winding b phase;Nc3 ' is the number of turn of the second secondary little winding c phase.Second secondary little around The b phase other end of group Zb2B is connected with a phase input of the 3rd rectifier bridge D3, the c phase other end of the second secondary little winding Zb2B It is connected with the b phase input of the 3rd rectifier bridge D3, a phase other end of the second secondary little winding Zb2B and the c of the 3rd rectifier bridge D3 Phase input is connected.In order to ensure the second secondary auxiliary winding Zb2 is identical with secondary main winding Za output voltage amplitude, the second secondary The number of turn of leading than the phase contrast of secondary main winding Za 15 ° of auxiliary winding Zb2, the second secondary auxiliary winding Zb2 needs to meet:N2= 0.577N1, N2 '=0.299N1.Second secondary auxiliary winding Zb2 forms the 3rd group of output of DC side, is connected to the 3rd rectifier bridge D3 Input.
3rd secondary auxiliary winding Zb3 is delta connection, and the number of turn is Na4b4=Nb4c4=Nc4a4=N4, wherein Na4b4 It is the number of turn between the 3rd secondary auxiliary winding a phase and the 3rd secondary auxiliary winding b phase;Nb4c4 is the 3rd secondary auxiliary winding b phase and The number of turn between three secondary auxiliary winding c phases;Nc4a4 is the circle between the 3rd secondary auxiliary winding c phase and the 3rd secondary auxiliary winding a phase Number.The line voltage of tap at N1 is consistent with secondary main winding Za for the line voltage amplitude of the 3rd secondary auxiliary winding Zb3 output, and phase 30 ° of phase difference, the relation of therefore N4 and N1 isThe 4th group of 3rd secondary auxiliary winding Zb3 formation DC side defeated Go out, be connected to the input of the 4th rectifier bridge D4.
The outfan of the first rectifier bridge D1, the outfan of the second rectifier bridge D2, the outfan and the 4th of the 3rd rectifier bridge D3 The outfan of rectifier bridge D4 is in parallel, is connected at direct current output electric capacity, forms direct voltage output.
Described above be merely exemplary for the purpose of the present invention, and nonrestrictive, those of ordinary skill in the art understand, In the case of the spirit and scope being limited without departing from claim, any modification, change or the equivalents that can make are all To fall within the protection domain of invention.

Claims (10)

1. a kind of distribution transformer commutator is it is characterised in that include:
Change in voltage module (100):The voltage of the alternating current providing for transition electric power system;
Voltage transformation module (200):For described alternating current is converted to unidirectional current;
Output module (300):For alternating current after described change in voltage module for the output, for output through described voltage The unidirectional current of modular converter.
2. a kind of distribution transformer commutator according to claim 1 it is characterised in that:Described output module includes
AC output module (310):For alternating current after described change in voltage module for the output;
Direct current output module (320):For unidirectional current after described voltage transformation module for the output.
3. a kind of distribution transformer commutator according to claim 2 it is characterised in that:Including one group of primary side winding (Y), extremely Few two groups of vice-side winding (Z) and at least two rectifier bridges (D), described vice-side winding (Z) is connected with described rectifier bridge (D) and one by one Corresponding.
4. a kind of distribution transformer commutator according to claim 3 it is characterised in that:Described primary side winding includes A phase, B Phase, C phase, are delta connection.
5. a kind of distribution transformer commutator according to claim 4 it is characterised in that:Described vice-side winding (Z) includes one Group secondary main winding (Za) and least one set secondary auxiliary winding (Zb), described secondary main winding (Zb) includes a phase, b phase, c phase, is The phase contrast of star connection, described secondary main winding (Za) and described secondary auxiliary winding (Zb) and described vice-side winding (Z) number Product be 60 °.
6. a kind of distribution transformer commutator according to claim 5 it is characterised in that:Described vice-side winding (Z) includes secondary Side main winding (Za) and the first secondary auxiliary winding (Zb1), described secondary main winding (Za) is star connection, described first secondary pair Winding (Zb1) is delta connection, and described first secondary auxiliary winding (Zb1) with the phase contrast of described secondary main winding (Za) is 30 °, described secondary main winding (Za) is connected with the first rectifier bridge (D1), described first secondary auxiliary winding (Zb1) and the second rectification Bridge (D2) is connected.
7. a kind of distribution transformer commutator according to claim 5 it is characterised in that:Described vice-side winding (Z) includes secondary Side main winding (Za), the first secondary auxiliary winding (Zb1) and the second secondary auxiliary winding (Zb2);Described secondary main winding (Za) is star Shape connection;Described first secondary auxiliary winding (Zb1) includes the big winding of the first secondary (Zb1A) and the little winding of the first secondary (Zb1B), The big winding (Zb1A) of described first secondary include the first secondary big winding a phase, the first secondary big winding b phase and the first secondary greatly around Group c phase, it is secondary that the little winding (Zb1B) of described first secondary includes the first secondary little winding a phase, the first secondary little winding b phase and first Side little winding c phase, the big winding a phase of described first secondary is by described first secondary little winding c phase and the second rectifier bridge (D2) phase Even, the big winding b phase of described first secondary is connected with the second rectifier bridge (D2) by described first secondary little winding a phase, and described the One secondary big winding c phase is connected with the second rectifier bridge (D2) by described first secondary little winding b phase, described first secondary pair around Group (Zb1) is 20 ° with the phase contrast of described secondary main winding (Za);Described second secondary auxiliary winding (Zb2) includes the second secondary Big winding (Zb2A) and the little winding of the second secondary (Zb2B), the big winding (Zb2A) of described second secondary is wye connection, including the Two secondary big winding a phase, the second secondary big winding b phase and the second secondary big winding c phase, the little winding (Zb2B) of described second secondary Including the second secondary little winding a phase, the second secondary little winding b phase and the second secondary little winding c phase, the big winding of described second secondary A phase is connected with the 3rd rectifier bridge (D3) by described second secondary little winding b phase, and the big winding b phase of described second secondary passes through institute State the second secondary little winding c phase to be connected with the 3rd rectifier bridge (D3), the big winding c phase of described second secondary passes through described second secondary Little winding a phase is connected with the 3rd rectifier bridge (D3), the phase of described second secondary auxiliary winding (Zb2) and described secondary main winding (Za) Potential difference is 20 °, and described second secondary auxiliary winding (Zb2) is 40 ° with the phase contrast of described first secondary auxiliary winding (Zb1).
8. a kind of distribution transformer commutator according to claim 5 it is characterised in that:Described vice-side winding (Z) includes secondary Side main winding (Za), the first secondary auxiliary winding (Zb1), the second secondary auxiliary winding (Zb2) and the 3rd secondary auxiliary winding (Zb3);Institute Stating secondary main winding (Za) is star connection;Described first secondary auxiliary winding (Zb1) include the big winding of the first secondary (Zb1A) and The little winding of first secondary (Zb1B), it is big that the big winding (Zb1A) of described first secondary includes the first secondary big winding a phase, the first secondary Winding b phase and the first secondary big winding c phase, the little winding (Zb1B) of described first secondary include the first secondary little winding a phase, first Secondary little winding b phase and the first secondary little winding c phase, the big winding a phase of described first secondary passes through the little winding c of described first secondary It is connected with the second rectifier bridge (D2), the big winding b phase of described first secondary is whole with second by described first secondary little winding a phase Stream bridge (D2) is connected, and the big winding c phase of described first secondary is by described first secondary little winding b phase and the second rectifier bridge (D2) phase Even, described first secondary auxiliary winding (Zb1) and the phase contrast of described secondary main winding (Za) are 15 °;Described second secondary pair around Group (Zb2) includes the big winding of the second secondary (Zb2A) and the little winding of the second secondary (Zb2B), the big winding of described second secondary (Zb2A) it is wye connection, including the second secondary big winding a phase, the second secondary big winding b phase and the second secondary big winding c phase, The little winding (Zb2B) of described second secondary include the second secondary little winding a phase, the second secondary little winding b phase and the second secondary little around Group c phase, the big winding a phase of described second secondary is connected with the 3rd rectifier bridge (D3) by described second secondary little winding b phase, described Second secondary big winding b phase is connected with the 3rd rectifier bridge (D3) by described second secondary little winding c phase, and described second secondary is big Winding c phase is connected with the 3rd rectifier bridge (D3) by described second secondary little winding a phase, described second secondary auxiliary winding (Zb2) It is 15 ° with the phase contrast of described secondary main winding (Za), described second secondary auxiliary winding (Zb2) and described first secondary auxiliary winding (Zb1) phase contrast is 30 °;Described 3rd secondary auxiliary winding (Zb3) is delta connection, is connected with the 4th rectifier bridge (D4), Described 3rd secondary auxiliary winding (Zb3) is 30 ° with the phase contrast of described secondary main winding (Za).
9. a kind of distribution transformer commutator according to claim 5~8 any one it is characterised in that:Described secondary master The secondary auxiliary winding described in line diameter ratio (Zb) of winding (Za) is thick.
10. a kind of distribution transformer commutator according to claim 9 it is characterised in that:Described secondary main winding (Za) bag Include least one set tap.
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