CN109004848A - Tetra- level rectifier of Vienna - Google Patents
Tetra- level rectifier of Vienna Download PDFInfo
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- CN109004848A CN109004848A CN201810802579.1A CN201810802579A CN109004848A CN 109004848 A CN109004848 A CN 109004848A CN 201810802579 A CN201810802579 A CN 201810802579A CN 109004848 A CN109004848 A CN 109004848A
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- 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
- H02M7/12—Conversion 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
- H02M7/21—Conversion 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
- H02M7/217—Conversion 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
- H02M7/2173—Conversion 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 in a biphase or polyphase circuit arrangement
Abstract
The invention discloses tetra- level rectifiers of Vienna.Tetra- level rectifier of three-phase three-wire system Vienna mainly includes A2Circuitry phase, B2Circuitry phase, C2Circuitry phase, capacitor C4, capacitor C5, capacitor C6With resistance R2.Tetra- level rectifier of three-phase four-wire system Vienna mainly includes A1Circuitry phase, B1Circuitry phase, C1Circuitry phase, capacitor C1, capacitor C2a, capacitor C2b, capacitor C3With resistance R1。A1Circuitry phase, B1Circuitry phase and C1The end g, the end h, the end j, the end p and the end q are respectively connected to after circuitry phase is in parallel.Capacitor C1With capacitor C2aIt is connected by the end h；Capacitor C2aWith capacitor C2bIt is connected by the end j；Capacitor C2bWith capacitor C3It is connected by the end p.The end g series resistance R1The end q is accessed afterwards.Present invention reduces switching device voltage stress, also reduce switching loss.Input current ripple of the invention and Current harmonic distortion rate are smaller, are conducive to reduce input filter size, reduce passive device cost.
Description
Technical field
The present invention relates to electric fields, specifically tetra- level rectifier of Vienna.
Background technique
Vienna three-level rectifier is widely used in electric automobile charging pile, communication power supply, industrial frequency transformer and friendship
The low pressure applications such as DC drive system field (< 480VAC).Since the switch tube voltage stress of Vienna three-level rectifier is
The half for exporting DC bus-bar voltage, is not suitable for the high-power applications occasion of higher voltage grade.It is answered although having in the market
With two level of multiple switch devices in series, the product of three-level current transformer, but its design layout, there are poor reliability, the change of current is returned
Road is larger, and switching device moves the problems such as static state voltage equipoise difficulty is big, and input current total harmonic distortion factor is high, and manufacturing cost is high.
Summary of the invention
Present invention aim to address problems of the prior art.
To realize the present invention purpose and the technical solution adopted is that such, a kind of tetra- level of three-phase three-wire system Vienna is whole
Device is flowed, mainly includes A2Circuitry phase, B2Circuitry phase, C2Circuitry phase, capacitor C4, capacitor C5, capacitor C6With resistance R2。
Remember capacitor C4Both ends be respectively the end G and the end H.Remember capacitor C5Both ends be respectively the end H and the end J.Remember capacitor C6Two
End is respectively the end J and the end P.
A2Circuitry phase, B2Circuitry phase and C2The end G, the end H, the end J and the end P are respectively connected to after circuitry phase is in parallel.
Capacitor C4With capacitor C5It is connected by the end H.Capacitor C5With capacitor C6It is connected by the end J.
The end G series resistance R2The end P is accessed afterwards.
A2The circuit structure of circuitry phase is as follows:
AC power source ua2Both ends be denoted as the end E and the end F respectively.
The end F is sequentially connected in series inductance La2With diode Da7Anode.Remember one end of the anode of inductance La2 series diode Da7
For the end i.Diode Da7Cathode series diode Da9Cathode.Diode Da9Anode connect switching tube Sa5Source electrode.Switch
Pipe Sa5Grid it is hanging.Switching tube Sa5Drain electrode access the end H.Diode Da9Anode connect switching tube Sa6Drain electrode.Switching tube
Sa6Grid it is hanging.Switching tube Sa6Source electrode access the end J.
Diode Da7Cathode series diode Da11Anode.Diode Da11Cathode access the end G.
Diode Da7Cathode tandem tap pipe Sa4Drain electrode.Switching tube Sa4Grid it is hanging.Switching tube Sa4Source electrode string
Union II pole pipe Da8Anode.Diode Da8Cathode series diode Da7Anode.
Switching tube Sa4Source series diode Da10Anode.Diode Da10Cathode series diode Da9Anode.
Diode Da10Anode series diode Da12Cathode.Diode Da12Anode access the end P.
The circuit structure of B circuitry phase is as follows:
AC power source ub2Both ends be denoted as the end E and the end L respectively.
The end L is sequentially connected in series inductance Lb2With diode Db7Anode.Diode Db7Cathode series diode Db9Cathode.
Diode Db9Anode connect switching tube Sb5Source electrode.Switching tube Sb5Grid it is hanging.Switching tube Sb5Drain electrode access the end H.Two
Pole pipe Db9Anode connect switching tube Sb6Drain electrode.Switching tube Sb6Grid it is hanging.Switching tube Sb6Source electrode access the end J.
Diode Db7Cathode series diode Db11Anode.Diode Db11Cathode access the end G.
Diode Db7Cathode tandem tap pipe Sb4Drain electrode.Switching tube Sb4Grid it is hanging.Switching tube Sb4Source electrode string
Union II pole pipe Db8Anode.Diode Db8Cathode series diode Db7Anode.
Switching tube Sb4Source series diode Db10Anode.Diode Db10Cathode series diode Db9Anode.
Diode Db10Anode series diode Db12Cathode.Diode Db12Anode access the end P.
The circuit structure of C circuitry phase is as follows:
AC power source uc2Both ends be denoted as the end E and the end K respectively.
The end K is sequentially connected in series inductance Lc2With diode Dc7Anode.Diode Dc7Cathode series diode Dc9Cathode.
Diode Dc9Anode connect switching tube Sc5Source electrode.Switching tube Sc5Grid it is hanging.Switching tube Sc5Drain electrode access the end H.Two
Pole pipe Dc9Anode connect switching tube Sc6Drain electrode.Switching tube Sc6Grid it is hanging.Switching tube Sc6Source electrode access the end J.
Diode Dc7Cathode series diode Dc11Anode.Diode Dc11Cathode access the end G.
Diode Dc7Cathode tandem tap pipe Sc4Drain electrode.Switching tube Sc4Grid it is hanging.Switching tube Sc4Source electrode string
Union II pole pipe Dc8Anode.Diode Dc8Cathode series diode Dc7Anode.
Switching tube Sc4Source series diode Dc10Anode.Diode Dc10Cathode series diode Dc9Anode.
Diode Dc10Anode series diode Dc12Cathode.Diode Dc12Anode access the end P.
AC power source ua2, AC power source ub2With AC power source uC2Pass through the parallel connection of the end E.
Diode Dx11Voltage stress UDx11With diode Dx12Voltage stress UDx12It is as follows respectively:
In formula, Udc2DC bus-bar voltage is exported for tetra- level rectifier of three-phase three-wire system Vienna.X=a, b, c.
Switching tube Sx4Voltage stress Usx4, switching tube Sx5Voltage stress Usx5, switching tube Sx6Voltage stress Usx6, diode Dx7
Voltage stress UDx7, diode Dx8Voltage stress UDx8, diode Dx9Voltage stress UDx9With diode Dx10Voltage stress UDx10Point
It is not as follows:
In formula, Udc2To export DC bus-bar voltage.X=a, b, c.
Capacitor C4The voltage U at both endsC4, capacitor C5The voltage U at both endsC5With capacitor C6The voltage U at both endsC6Following institute respectively
Show:
In formula, Udc2To export DC bus-bar voltage.
Diode Da7, diode Da8, diode Db7, diode Db8, diode Dc7With diode Dc8Working frequency be
Input power ua2, input power ub2With input power uc2Fundamental frequency.
The key step being modulated to tetra- level rectifier of three-phase three-wire system Vienna is as follows:
I carrier frequency) is set as fs, amplitude VcAnd three layers of constant triangular carrier C (t).First layer triangular carrier is denoted as
C1(t), second layer triangular carrier is denoted as C2(t).Third layer triangular carrier is denoted as C3(t)。
II)A2The modulated signal m of circuitry phasea2(t)、B2The modulated signal m of circuitry phaseb2(t) and C2The modulation of circuitry phase is believed
Number mc2(t), as follows respectively:
In formula, VmFor the amplitude of modulated signal.fmFor the frequency of modulated signal.M is modulation ratio.VcFor triangular carrier C (t)
Amplitude.t2To modulate the time.
III) modulating wave and triangular carrier that step 3 obtains are compared with phase laminating method using modulating wave, thus
Generate 27 control signals.27 control signals distinguish control switch pipe Sa4, switching tube Sa5, switching tube Sa6, diode Da7, two
Pole pipe Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb7, switching tube Sb8, switching tube Sb9, two
Pole pipe Db10, diode Db11, diode Db12, switching tube Sb4, switching tube Sb5, switching tube Sb6, switching tube Sc4, switching tube Sc5, open
Close pipe Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12On-off.
Conducting is indicated with 1, and 0 indicates shutdown, each switching device on-off of tetra- level rectifier of three-phase three-wire system Vi enna
Situation is specific as follows:
Input voltage is positive half cycle and output level is Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, diode
Da7, diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switching tube
Sb6, diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switching tube
Sc5, switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Switch
State is 000100010000100010000100010.
Input voltage is positive half cycle and output level is 2/3Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, two poles
Pipe Da7, diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switch
Pipe Sb6, diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switch
Pipe Sc5, switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Open
Off status is 110100100110100100110100100.
Input voltage is positive half cycle and output level is 1/3Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, two poles
Pipe Da7, diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switch
Pipe Sb6, diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switch
Pipe Sc5, switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Open
Off status is 101100100101100100101100100.
When input voltage is negative half period and output level is 0, switching tube Sa4, switching tube Sa5, switching tube Sa6, diode Da7、
Diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switching tube Sb6、
Diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switching tube Sc5、
Switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Switch state
It is 000010001000010001000010001.
Input voltage is negative half period and output level is 1/3Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, two poles
Pipe Da7, diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switch
Pipe Sb6, diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switch
Pipe Sc5, switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Open
Off status is 101011000101011000101011000.
Input voltage is negative half period and output level is 2/3Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, two poles
Pipe Da7, diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switch
Pipe Sb6, diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switch
Pipe Sc5, switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Open
Off status is 110011000110011000110011000.
A kind of tetra- level rectifier of three-phase four-wire system Vienna mainly includes A1Circuitry phase, B1Circuitry phase, C1Circuitry phase, electricity
Hold C1, capacitor C2a, capacitor C2b, capacitor C3With resistance R1。
Remember capacitor C1Both ends be respectively the end g and the end h.Remember capacitor C2aBoth ends be respectively the end h and the end j.Remember capacitor C2b's
Both ends are respectively the end j and the end p.Remember capacitor C3Both ends be respectively the end p and the end q.
A1Circuitry phase, B1Circuitry phase and C1The end g, the end h, the end j, the end p and the end q are respectively connected to after circuitry phase is in parallel.
Capacitor C1With capacitor C2aIt is connected by the end h.Capacitor C2aWith capacitor C2bIt is connected by the end j.Capacitor C2bWith capacitor C3It is logical
Cross the series connection of the end p.
The end g series resistance R1The end q is accessed afterwards.
A1The circuit structure of circuitry phase is as follows:
AC power source ua1Both ends be denoted as the end e and the end f respectively.
E is terminated into capacitor C2aThe end j.
The end f is sequentially connected in series inductance La1With diode Da1Anode.Inductance La1Series diode Da1One end of anode be denoted as
The end y.Diode Da1Cathode series diode Da3Cathode.Diode Da3Anode connect switching tube Sa2Source electrode.Switching tube
Sa2Grid it is hanging.Switching tube Sa2Drain electrode access the end h.Diode Da3Anode connect switching tube Sa3Drain electrode.Switching tube
Sa3Grid it is hanging.Switching tube Sa3Source electrode access the end p.
Diode Da1Cathode series diode Da5Anode.Diode Da5Cathode access the end g.
Diode Da1Cathode tandem tap pipe Sa1Drain electrode.Switching tube Sa1Grid it is hanging.Switching tube Sa1Source electrode string
Union II pole pipe Da2Anode.Diode Da2Cathode series diode Da1Anode.
Switching tube Sa1Source series diode Da4Anode.Diode Da4Cathode series diode Da3Anode.
Diode Da4Anode series diode Da6Cathode.Diode Da6Anode access the end q.
B1The circuit structure of circuitry phase is as follows:
AC power source ub1Both ends be denoted as the end e and the end l respectively.
The end l is sequentially connected in series inductance Lb1With diode Db1Anode.Diode Db1Cathode series diode Db3Cathode.
Diode Db3Anode connect switching tube Sb2Source electrode.Switching tube Sb2Grid it is hanging.Switching tube Sb2Drain electrode access the end h.Two
Pole pipe Db3Anode connect switching tube Sb3Drain electrode.Switching tube Sb3Grid it is hanging.Switching tube Sb3Source electrode access the end p.
Diode Db1Cathode series diode Db5Anode.Diode Db5Cathode access the end g.
Diode Db1Cathode tandem tap pipe Sb1Drain electrode.Switching tube Sb1Grid it is hanging.Switching tube Sb1Source electrode string
Union II pole pipe Db2Anode.Diode Db2Cathode series diode Db1Anode.
Switching tube Sb1Source series diode Db4Anode.Diode Db4Cathode series diode Db3Anode.
Diode Db4Anode series diode Db6Cathode.Diode Db6Anode access the end q.
C1The circuit structure of circuitry phase is as follows:
AC power source uc1Both ends be denoted as the end e and the end k respectively.
The end k is sequentially connected in series inductance Lc1With diode Dc1Anode.Diode Dc1Cathode series diode Dc3Cathode.
Diode Dc3Anode connect switching tube Sc2Source electrode.Switching tube Sc2Grid it is hanging.Switching tube Sc2Drain electrode access the end h.Two
Pole pipe Dc3Anode connect switching tube Sc3Drain electrode.Switching tube Sc3Grid it is hanging.Switching tube Sc3Source electrode access the end p.
Diode Dc1Cathode series diode Dc5Anode.Diode Dc5Cathode access the end g.
Diode Dc1Cathode tandem tap pipe Sc1Drain electrode.Switching tube Sc1Grid it is hanging.Switching tube Sc1Source electrode string
Union II pole pipe Dc2Anode.Diode Dc2Cathode series diode Dc1Anode.
Switching tube Sc1Source series diode Dc4Anode.Diode Dc4Cathode series diode Dc3Anode.
Diode Dc4Anode series diode Dc6Cathode.Diode Dc6Anode access the end q.
AC power source ua1, AC power source ub1With AC power source uC1Pass through the parallel connection of the end e.
Diode Dx5Voltage stress UDx5With diode Dx6Voltage stress UDx6It is as follows respectively:
In formula, Udc1DC bus-bar voltage is exported for tetra- level rectifier of three-phase four-wire system Vienna.X=a, b, c.
Switching tube Sx1Voltage stress Usx1, switching tube Sx2Voltage stress Usx2, switching tube Sx3Voltage stress Usx3, diode Dx1
Voltage stress UDx1, diode Dx2Voltage stress UDx2, diode Dx3Voltage stress UDx3With diode Dx4Voltage stress UDx4Respectively
It is as follows:
In formula, Udc1To export DC bus-bar voltage.X=a, b, c.
Capacitor C1The voltage U at both endsC1With capacitor C3The voltage U at both endsC3It is as follows respectively:
In formula, Udc1To export DC bus-bar voltage.
Capacitor C2aThe voltage U at both endsC2aWith capacitor C2bThe voltage U at both endsC2bIt is as follows respectively:
In formula, Udc1To export DC bus-bar voltage.
Diode Da1, diode Da2, diode Db1, diode Db2, diode Dc1With diode Dc2Working frequency be
Input power ua1, input power ub1With input power uc1Fundamental frequency.
The key step being modulated to tetra- level rectifier of three-phase four-wire system Vienna is as follows:
1) carrier frequency is set as fs, amplitude VcAnd three layers of constant triangular carrier C (t).First layer triangular carrier is denoted as
C1(t), second layer triangular carrier is denoted as C2(t).Third layer triangular carrier is denoted as C3(t)。
2)A1The modulated signal m of circuitry phasea1(t)、B1The modulated signal m of circuitry phaseb1(t) and C1The modulated signal of circuitry phase
mc1(t), as follows respectively:
In formula, VmFor the amplitude of modulated signal.fmFor the frequency of modulated signal.M is modulation ratio.VcFor triangular carrier C (t)
Amplitude.t1To modulate the time.
Wherein, modulation ratio m is as follows:
In formula, VmFor the amplitude of modulated signal.VcFor the amplitude of triangular carrier C (t).
3) modulating wave and triangular carrier that step 3 obtains are compared, with phase laminating method to produce using modulating wave
Raw 27 control signals.27 control signals distinguish control switch pipe Sa1, switching tube Sa2, switching tube Sa3, diode Da1, two poles
Pipe Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switching tube Sb3, diode
Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube Sc2, switching tube
Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6On-off.
Conducting is indicated with 1, and 0 indicates shutdown, each switching device on-off of tetra- level rectifier of three-phase four-wire system Vienna
Situation is specific as follows:
Input voltage is positive half cycle and output level is 1/2Udc1When, switching tube Sa1, switching tube Sa2, switching tube Sa3, two poles
Pipe Da1, diode Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switching tube
Sb3, diode Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube
Sc2, switching tube Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6Switch shape
State is 000100010000100010000100010.
Input voltage is positive half cycle and output level is 1/6Udc1When, switching tube Sa1, switching tube Sa2, switching tube Sa3, two poles
Pipe Da1, diode Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switching tube
Sb3, diode Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube
Sc2, switching tube Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6Switch shape
State is 110100100110100100110100100.
Input voltage is negative half period and output level is -1/6Udc1When, switching tube Sa1, switching tube Sa2, switching tube Sa3, two
Pole pipe Da1, diode Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switch
Pipe Sb3, diode Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube
Sc2, switching tube Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6Switch shape
State is 101100100101100100101100100.
Input voltage is negative half period and output level is -1/2Udc1When, switching tube Sa1, switching tube Sa2, switching tube Sa3, two
Pole pipe Da1, diode Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switch
Pipe Sb3, diode Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube
Sc2, switching tube Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6Switch shape
State is 000010001000010001000010001.
The solution have the advantages that unquestionable.Present invention reduces switching device voltage stress, also reduce out
Close loss.Input current ripple of the invention and Current harmonic distortion rate are smaller, are conducive to reduce input filter size, reduce
Passive device cost.Tetra- level rectifier of Vienna, including tetra- level rectifier of three-phase three-wire system Vienna and three-phase four-wire system
Tetra- level rectifier of Vienna, is not only suitable for low pressure applications field, such as electric automobile charging pile, communication power supply etc., is also applied for
Middle pressure application field, such as electric vehicle rapid charging station, MW grade wind driven generator, high-power industrial frequency transformer.
Detailed description of the invention
Fig. 1 is tetra- level rectifier circuit structure diagram of three-phase three-wire system Vienna；
When Fig. 2 is input voltage positive half cycle, tetra- level rectifier output level U of three-phase three-wire system Viennadc2Corresponding
A2Equivalent circuit；
When Fig. 3 is input voltage positive half cycle, tetra- level rectifier output level 2/3U of three-phase three-wire system Viennadc2Institute is right
The A answered2Equivalent circuit；
When Fig. 4 is input voltage positive half cycle, tetra- level rectifier output level 1/3U of three-phase three-wire system Viennadc2Institute is right
The A answered2Equivalent circuit；
When Fig. 5 is input voltage negative half period, A corresponding to tetra- level rectifier output level 0 of three-phase three-wire system Vienna2
Equivalent circuit；
When Fig. 6 is input voltage negative half period, tetra- level rectifier output level 1/3U of three-phase three-wire system Viennadc2Institute is right
The A answered2Equivalent circuit；
When Fig. 7 is input voltage negative half period, tetra- level rectifier output level 2/3U of three-phase three-wire system Viennadc2Institute is right
The A answered2Equivalent circuit；
Fig. 8 is tetra- level rectifier B of three-phase three-wire system Vienna2Circuitry phase schematic diagram；
Fig. 9 is tetra- level rectifier C of three-phase three-wire system Vienna2Circuitry phase schematic diagram；
Figure 10 is tetra- level rectifier circuit structure diagram of three-phase four-wire system Vienna；
When Figure 11 is input voltage positive half cycle, tetra- level rectifier output level 1/2U of three-phase four-wire system Viennadc1Institute is right
The A answered1Equivalent circuit；
When Figure 12 is input voltage positive half cycle, tetra- level rectifier output level 1/6U of three-phase four-wire system Viennadc1Institute is right
The A answered1Equivalent circuit；
When Figure 13 is input voltage negative half period, tetra- level rectifier output level -1/6U of three-phase four-wire system Viennadc1Institute
Corresponding A1Equivalent circuit；
When Figure 14 is input voltage negative half period, tetra- level rectifier output level -1/2U of three-phase four-wire system Viennadc1Institute
Corresponding A1Equivalent circuit；
Figure 15 is tetra- level rectifier B of three-phase four-wire system Vienna1Circuitry phase schematic diagram；
Figure 16 is tetra- level rectifier C of three-phase four-wire system Vienna1Circuitry phase schematic diagram；
Figure 17 is tetra- level rectifier modulation logic relation schematic diagram of three-phase four-wire system Vienna；
Figure 18 is tetra- level rectifier on off sequence of three-phase four-wire system Vienna；
Figure 19 is tetra- level rectifier modulation logic relation schematic diagram of three-phase three-wire system Vienna；
Figure 20 is tetra- level rectifier on off sequence of three-phase three-wire system Vienna；
Specific embodiment
Below with reference to embodiment, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention only
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, should all include within the scope of the present invention.
Embodiment 1:
A kind of tetra- level rectifier of three-phase three-wire system Vienna mainly includes A2Circuitry phase, B2Circuitry phase, C2Circuitry phase, electricity
Hold C4, capacitor C5, capacitor C6With resistance R2。
Remember capacitor C4Both ends be respectively the end G and the end H.Remember capacitor C5Both ends be respectively the end H and the end J.Remember capacitor C6Two
End is respectively the end J and the end P.
A2Circuitry phase, B2Circuitry phase and C2The end G, the end H, the end J and the end P are respectively connected to after circuitry phase is in parallel.
Capacitor C4With capacitor C5It is connected by the end H.Capacitor C5With capacitor C6It is connected by the end J.
The end G series resistance R2The end P is accessed afterwards.
A2The circuit structure of circuitry phase is as follows:
AC power source ua2Both ends be denoted as the end E and the end F respectively.
The end F is sequentially connected in series inductance La2With diode Da7Anode.Remember one end of the anode of inductance La2 series diode Da7
For the end i.Diode Da7Cathode series diode Da9Cathode.Diode Da9Anode connect switching tube Sa5Source electrode.Switch
Pipe Sa5Grid it is hanging.Switching tube Sa5Drain electrode access the end H.Diode Da9Anode connect switching tube Sa6Drain electrode.Switching tube
Sa6Grid it is hanging.Switching tube Sa6Source electrode access the end J.
Diode Da7Cathode series diode Da11Anode.Diode Da11Cathode access the end G.
Diode Da7Cathode tandem tap pipe Sa4Drain electrode.Switching tube Sa4Grid it is hanging.Switching tube Sa4Source electrode string
Union II pole pipe Da8Anode.Diode Da8Cathode series diode Da7Anode.
Switching tube Sa4Source series diode Da10Anode.Diode Da10Cathode series diode Da9Anode.
Diode Da10Anode series diode Da12Cathode.Diode Da12Anode access the end P.
B2The circuit structure of circuitry phase is as follows:
AC power source ub2Both ends be denoted as the end E and the end L respectively.
The end L is sequentially connected in series inductance Lb2With diode Db7Anode.Diode Db7Cathode series diode Db9Cathode.
Diode Db9Anode connect switching tube Sb5Source electrode.Switching tube Sb5Grid it is hanging.Switching tube Sb5Drain electrode access the end H.Two
Pole pipe Db9Anode connect switching tube Sb6Drain electrode.Switching tube Sb6Grid it is hanging.Switching tube Sb6Source electrode access the end J.
Diode Db7Cathode series diode Db11Anode.Diode Db11Cathode access the end G.
Diode Db7Cathode tandem tap pipe Sb4Drain electrode.Switching tube Sb4Grid it is hanging.Switching tube Sb4Source electrode string
Union II pole pipe Db8Anode.Diode Db8Cathode series diode Db7Anode.
Switching tube Sb4Source series diode Db10Anode.Diode Db10Cathode series diode Db9Anode.
Diode Db10Anode series diode Db12Cathode.Diode Db12Anode access the end P.
C2The circuit structure of circuitry phase is as follows:
AC power source ua2Both ends be denoted as the end E and the end K respectively.
The end K is sequentially connected in series inductance Lc2With diode Dc7Anode.Diode Dc7Cathode series diode Dc9Cathode.
Diode Dc9Anode connect switching tube Sc5Source electrode.Switching tube Sc5Grid it is hanging.Switching tube Sc5Drain electrode access the end H.Two
Pole pipe Dc9Anode connect switching tube Sc6Drain electrode.Switching tube Sc6Grid it is hanging.Switching tube Sc6Source electrode access the end J.
Diode Dc7Cathode series diode Dc11Anode.Diode Dc11Cathode access the end G.
Diode Dc7Cathode tandem tap pipe Sc4Drain electrode.Switching tube Sc4Grid it is hanging.Switching tube Sc4Source electrode string
Union II pole pipe Dc8Anode.Diode Dc8Cathode series diode Dc7Anode.
Switching tube Sc4Source series diode Dc10Anode.Diode Dc10Cathode series diode Dc9Anode.
Diode Dc10Anode series diode Dc12Cathode.Diode Dc12Anode access the end P.
AC power source ua2, AC power source ub2With AC power source uC2Pass through the parallel connection of the end E.
Diode Dx11Voltage stress UDx11With diode Dx12Voltage stress UDx12It is as follows respectively:
In formula, Udc2DC bus-bar voltage is exported for tetra- level rectifier of three-phase three-wire system Vienna.X=a, b, c.
I.e.
Switching tube Sx4Voltage stress Usx4, switching tube Sx5Voltage stress Usx5, switching tube Sx6Voltage stress Usx6, diode Dx7
Voltage stress UDx7, diode Dx8Voltage stress UDx8, diode Dx9Voltage stress UDx9With diode Dx10Voltage stress UDx10Point
It is not as follows:
In formula, Udc2To export DC bus-bar voltage.X=a, b, c.
I.e.
Capacitor C4The voltage U at both endsC4, capacitor C5The voltage U at both endsC5With capacitor C6The voltage U at both endsC6Following institute respectively
Show:
In formula, Udc2To export DC bus-bar voltage.
Diode Da7, diode Da8, diode Db7, diode Db8, diode Dc7With diode Dc8Working frequency be
Input power ua2, input power ub2With input power uc2Fundamental frequency.
Embodiment 2:
The key step being modulated to tetra- level rectifier of three-phase three-wire system Vienna is as follows:
1) carrier frequency is set as fs, amplitude VcAnd three layers of constant triangular carrier C (t).First layer triangular carrier is denoted as
C1(t), second layer triangular carrier is denoted as C2(t).Third layer triangular carrier is denoted as C3(t)。
2)A2The modulated signal m of circuitry phasea2(t)、B2The modulated signal m of circuitry phaseb2(t) and C2The modulated signal of circuitry phase
mc2(t), as follows respectively:
In formula, VmFor the amplitude of modulated signal.fmFor the frequency of modulated signal.M is modulation ratio.VcFor triangular carrier C (t)
Amplitude.t2To modulate the time.
3) modulating wave and triangular carrier that step 3 obtains are compared, with phase laminating method to produce using modulating wave
The control signal of raw 9 switching tubes.9 control Signal-controlled switch pipe Sa4, switching tube Sa5, switching tube Sa6, diode Da7, two
Pole pipe Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switching tube Sb6, two
Pole pipe Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switching tube Sc5, open
Close pipe Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12On-off.
Conducting is indicated with 1, and 0 indicates shutdown, with A2For circuitry phase, the break-make situation of each switching tube and diode such as table
Shown in 1.
Table 1A2The switch state of circuitry phase
| UiP | State | Sa4 | Sa5 | Sa6 | Da7 | Da8 | Da9 | Da10 | Da11 | Da12 |
| Udc2 | Fig. 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
| 2/3Udc2 | Fig. 3 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
| 1/3Udc2 | Fig. 4 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
| 0 | Fig. 5 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 |
| 1/3Udc2 | Fig. 6 | 1 | 0 | 1 | 0 | 1 | 1 | 0 | 0 | 0 |
| 2/3Udc2 | Fig. 7 | 1 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 |
Input voltage is positive half cycle and output level is Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, diode
Da7, diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switching tube
Sb6, diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switching tube
Sc5, switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Switch
State is 000100010000100010000100010.
Input voltage is positive half cycle and output level is 2/3Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, two poles
Pipe Da7, diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switch
Pipe Sb6, diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switch
Pipe Sc5, switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Open
Off status is 110100100110100100110100100.
Input voltage is positive half cycle and output level is 1/3Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, two poles
Pipe Da7, diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switch
Pipe Sb6, diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switch
Pipe Sc5, switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Open
Off status is 101100100101100100101100100.
When input voltage is negative half period and output level is 0, switching tube Sa4, switching tube Sa5, switching tube Sa6, diode Da7、
Diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switching tube Sb6、
Diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switching tube Sc5、
Switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Switch state
It is 000010001000010001000010001.
Input voltage is negative half period and output level is 1/3Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, two poles
Pipe Da7, diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switch
Pipe Sb6, diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switch
Pipe Sc5, switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Open
Off status is 101011000101011000101011000.
Input voltage is negative half period and output level is 2/3Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, two poles
Pipe Da7, diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switch
Pipe Sb6, diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switch
Pipe Sc5, switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Open
Off status is 110011000110011000110011000.
Embodiment 3:
A kind of tetra- level rectifier of three-phase four-wire system Vienna mainly includes A1Circuitry phase, B1Circuitry phase, C1Circuitry phase, electricity
Hold C1, capacitor C2a, capacitor C2b, capacitor C3With resistance R1。
Remember capacitor C1Both ends be respectively the end g and the end h.Remember capacitor C2aBoth ends be respectively the end h and the end j.Remember capacitor C2b's
Both ends are respectively the end j and the end p.Remember capacitor C3Both ends be respectively the end p and the end q.
A1Circuitry phase, B1Circuitry phase and C1The end g, the end h, the end j, the end p and the end q are respectively connected to after circuitry phase is in parallel.
Capacitor C1With capacitor C2aIt is connected by the end h.Capacitor C2aWith capacitor C2bIt is connected by the end j.Capacitor C2bWith capacitor C3It is logical
Cross the series connection of the end p.
The end g series resistance R1The end q is accessed afterwards.
A1The circuit structure of circuitry phase is as follows:
AC power source ua1Both ends be denoted as the end e and the end f respectively.
E is terminated into capacitor C2aThe end j.
The end f is sequentially connected in series inductance La1With diode Da1Anode.Inductance La1Series diode Da1One end of anode be denoted as
The end y.Diode Da1Cathode series diode Da3Cathode.Diode Da3Anode connect switching tube Sa2Source electrode.Switching tube
Sa2Grid it is hanging.Switching tube Sa2Drain electrode access the end h.Diode Da3Anode connect switching tube Sa3Drain electrode.Switching tube
Sa3Grid it is hanging.Switching tube Sa3Source electrode access the end p.
Diode Da1Cathode series diode Da5Anode.Diode Da5Cathode access the end g.
Diode Da1Cathode tandem tap pipe Sa1Drain electrode.Switching tube Sa1Grid it is hanging.Switching tube Sa1Source electrode string
Union II pole pipe Da2Anode.Diode Da2Cathode series diode Da1Anode.
Switching tube Sa1Source series diode Da4Anode.Diode Da4Cathode series diode Da3Anode.
Diode Da4Anode series diode Da6Cathode.Diode Da6Anode access the end q.
B1The circuit structure of circuitry phase is as follows:
AC power source ub1Both ends be denoted as the end e and the end l respectively.
The end l is sequentially connected in series inductance Lb1With diode Db1Anode.Diode Db1Cathode series diode Db3Cathode.
Diode Db3Anode connect switching tube Sb2Source electrode.Switching tube Sb2Grid it is hanging.Switching tube Sb2Drain electrode access the end h.Two
Pole pipe Db3Anode connect switching tube Sb3Drain electrode.Switching tube Sb3Grid it is hanging.Switching tube Sb3Source electrode access the end p.
Diode Db1Cathode series diode Db5Anode.Diode Db5Cathode access the end g.
Diode Db1Cathode tandem tap pipe Sb1Drain electrode.Switching tube Sb1Grid it is hanging.Switching tube Sb1Source electrode string
Union II pole pipe Db2Anode.Diode Db2Cathode series diode Db1Anode.
Switching tube Sb1Source series diode Db4Anode.Diode Db4Cathode series diode Db3Anode.
Diode Db4Anode series diode Db6Cathode.Diode Db6Anode access the end q.
C1The circuit structure of circuitry phase is as follows:
AC power source uc1Both ends be denoted as the end e and the end k respectively.
The end k is sequentially connected in series inductance Lc1With diode Dc1Anode.Diode Dc1Cathode series diode Dc3Cathode.
Diode Dc3Anode connect switching tube Sc2Source electrode.Switching tube Sc2Grid it is hanging.Switching tube Sc2Drain electrode access the end h.Two
Pole pipe Dc3Anode connect switching tube Sc3Drain electrode.Switching tube Sc3Grid it is hanging.Switching tube Sc3Source electrode access the end p.
Diode Dc1Cathode series diode Dc5Anode.Diode Dc5Cathode access the end g.
Diode Dc1Cathode tandem tap pipe Sc1Drain electrode.Switching tube Sc1Grid it is hanging.Switching tube Sc1Source electrode string
Union II pole pipe Dc2Anode.Diode Dc2Cathode series diode Dc1Anode.
Switching tube Sc1Source series diode Dc4Anode.Diode Dc4Cathode series diode Dc3Anode.
Diode Dc4Anode series diode Dc6Cathode.Diode Dc6Anode access the end q.
AC power source ua1, AC power source ub1With AC power source uC1Pass through the parallel connection of the end e.
Diode Dx5Voltage stress UDx5With diode Dx6Voltage stress UDx6It is as follows respectively:
In formula, Udc1DC bus-bar voltage is exported for tetra- level rectifier of three-phase four-wire system Vienna.X=a, b, c.
I.e.
Switching tube Sx1Voltage stress Usx1, switching tube Sx2Voltage stress Usx2, switching tube Sx3Voltage stress Usx3, diode Dx1
Voltage stress UDx1, diode Dx2Voltage stress UDx2, diode Dx3Voltage stress UDx3With diode Dx4Voltage stress UDx4Respectively
It is as follows:
In formula, Udc1To export DC bus-bar voltage.X=a, b, c.
I.e.
Capacitor C1The voltage U at both endsC1With capacitor C3The voltage U at both endsC3It is as follows respectively:
In formula, Udc1To export DC bus-bar voltage.
Capacitor C2aThe voltage U at both endsC2aWith capacitor C2bThe voltage U at both endsC2bIt is as follows respectively:
In formula, Udc1To export DC bus-bar voltage.
Diode Da1, diode Da2, diode Db1, diode Db2, diode Dc1With diode Dc2Working frequency be
Input power ua1, input power ub1With input power uc1Fundamental frequency.
Embodiment 4:
The key step being modulated to tetra- level rectifier of three-phase four-wire system Vienna is as follows:
1) carrier frequency is set as fs, amplitude VcAnd three layers of constant triangular carrier C (t).First layer triangular carrier is denoted as
C1(t), second layer triangular carrier is denoted as C2(t).Third layer triangular carrier is denoted as C3(t)。
2)A1The modulated signal m of circuitry phasea1(t)、B1The modulated signal m of circuitry phaseb1(t) and C1The modulated signal of circuitry phase
mc1(t), as follows respectively:
In formula, VmFor the amplitude of modulated signal.fmFor the frequency of modulated signal.M is modulation ratio.VcFor triangular carrier C (t)
Amplitude.t1To modulate the time.
Wherein, modulation ratio m is as follows:
In formula, VmFor the amplitude of modulated signal.VcFor the amplitude of triangular carrier C (t).
3) modulating wave and triangular carrier that step 3 obtains are compared, with phase laminating method to produce using modulating wave
The control signal of raw 9 switching tubes.9 control Signal-controlled switch pipe Sa1, switching tube Sa2, switching tube Sa3, diode Da1, two poles
Pipe Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switching tube Sb3, diode
Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube Sc2, switching tube
Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6On-off.
Conducting is indicated with 1, and 0 indicates shutdown, with A1For circuitry phase, each switching tube and diode break-make situation such as table 1
It is shown.
Table 1A1The switch state of circuitry phase
| Uyj | State | Sa1 | Sa2 | Sa3 | Da1 | Da2 | Da3 | Da4 | Da5 | Da6 |
| 1/2Udc1 | Figure 11 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 |
| 1/6Udc1 | Figure 12 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 |
| -1/6Udc1 | Figure 13 | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 0 |
| -1/2Udc1 | Figure 14 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 |
Input voltage is positive half cycle and output level is 1/2Udc1When, switching tube Sa1, switching tube Sa2, switching tube Sa3, two poles
Pipe Da1, diode Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switching tube
Sb3, diode Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube
Sc2, switching tube Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6Switch shape
State is 000100010000100010000100010.
Input voltage is positive half cycle and output level is 1/6Udc1When, switching tube Sa1, switching tube Sa2, switching tube Sa3, two poles
Pipe Da1, diode Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switching tube
Sb3, diode Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube
Sc2, switching tube Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6Switch shape
State is 110100100110100100110100100.
Input voltage is negative half period and output level is -1/6Udc1When, switching tube Sa1, switching tube Sa2, switching tube Sa3, two
Pole pipe Da1, diode Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switch
Pipe Sb3, diode Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube
Sc2, switching tube Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6Switch shape
State is 101100100101100100101100100.
Input voltage is negative half period and output level is -1/2Udc1When, switching tube Sa1, switching tube Sa2, switching tube Sa3, two
Pole pipe Da1, diode Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switch
Pipe Sb3, diode Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube
Sc2, switching tube Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6Switch shape
State is 000010001000010001000010001.
Claims (8)
1. a kind of tetra- level rectifier of three-phase three-wire system Vienna, it is characterised in that: mainly include A2Circuitry phase, B2Circuitry phase, C2
Circuitry phase, capacitor C4, capacitor C5, capacitor C6With the resistance R2；
Remember capacitor C4Both ends be respectively the end G and the end H；Remember capacitor C5Both ends be respectively the end H and the end J；Remember capacitor C6Both ends point
It Wei not the end J and the end P.
A2Circuitry phase, B2Circuitry phase and C2The end G, the end H, the end J and the end P are respectively connected to after circuitry phase is in parallel；
Capacitor C4With capacitor C5It is connected by the end H；Capacitor C5With capacitor C6It is connected by the end J；
The end G series resistance R2The end P is accessed afterwards；
A2The circuit structure of circuitry phase is as follows:
AC power source ua2Both ends be denoted as the end E and the end F respectively；
The end F is sequentially connected in series inductance La2With diode Da7Anode；Diode Da7Cathode series diode Da9Cathode；Two poles
Pipe Da9Anode connect switching tube Sa5Source electrode；Switching tube Sa5Grid it is hanging；Switching tube Sa5Drain electrode access the end H；Diode
Da9Anode connect switching tube Sa6Drain electrode；Switching tube Sa6Grid it is hanging；Switching tube Sa6Source electrode access the end J；
Diode Da7Cathode series diode Da11Anode；Diode Da11Cathode access the end G；
Diode Da7Cathode tandem tap pipe Sa4Drain electrode；Switching tube Sa4Grid it is hanging；Switching tube Sa4Source series two
Pole pipe Da8Anode；Diode Da8Cathode series diode Da7Anode；
Switching tube Sa4Source series diode Da10Anode；Diode Da10Cathode series diode Da9Anode；
Diode Da10Anode series diode Da12Cathode；Diode Da12Anode access the end P；
B2The circuit structure of circuitry phase is as follows:
AC power source ub2Both ends be denoted as the end E and the end L respectively；
The end L is sequentially connected in series inductance Lb2With diode Db7Anode；Diode Db7Cathode series diode Db9Cathode；Two poles
Pipe Db9Anode connect switching tube Sb5Source electrode；Switching tube Sb5Grid it is hanging；Switching tube Sb5Drain electrode access the end H；Diode
Db9Anode connect switching tube Sb6Drain electrode；Switching tube Sb6Grid it is hanging；Switching tube Sb6Source electrode access the end J；
Diode Db7Cathode series diode Db11Anode；Diode Db11Cathode access the end G；
Diode Db7Cathode tandem tap pipe Sb4Drain electrode；Switching tube Sb4Grid it is hanging；Switching tube Sb4Source series two
Pole pipe Db8Anode；Diode Db8Cathode series diode Db7Anode；
Switching tube Sb4Source series diode Db10Anode；Diode Db10Cathode series diode Db9Anode；
Diode Db10Anode series diode Db12Cathode；Diode Db12Anode access the end P；
C2The circuit structure of circuitry phase is as follows:
AC power source uc2Both ends be denoted as the end E and the end K respectively；
The end K is sequentially connected in series inductance Lc2With diode Dc7Anode；Diode Dc7Cathode series diode Dc9Cathode；Two poles
Pipe Dc9Anode connect switching tube Sc5Source electrode；Switching tube Sc5Grid it is hanging；Switching tube Sc5Drain electrode access the end H；Diode
Dc9Anode connect switching tube Sc6Drain electrode；Switching tube Sc6Source electrode access the end J；
Diode Dc7Cathode series diode Dc11Anode；Diode Dc11Cathode access the end G；
Diode Dc7Cathode tandem tap pipe Sc4Drain electrode；Switching tube Sc4Grid it is hanging；Switching tube Sc4Source series two
Pole pipe Dc8Anode；Diode Dc8Cathode series diode Dc7Anode；
Switching tube Sc4Source series diode Dc10Anode；Diode Dc10Cathode series diode Dc9Anode；
Diode Dc10Anode series diode Dc12Cathode；Diode Dc12Anode access the end P；
AC power source ua2, AC power source ub2With AC power source uc2Pass through the parallel connection of the end E.
2. a kind of tetra- level rectifier of three-phase three-wire system Vienna according to claim 1, it is characterised in that: diode
Dx11Voltage stress UDx11With diode Dx12Voltage stress UDx12It is as follows respectively:
In formula, Udc2DC bus-bar voltage is exported for tetra- level rectifier of three-phase three-wire system Vienna；X=a, b, c；
Switching tube Sx4Voltage stress Usx4, switching tube Sx5Voltage stress Usx5, switching tube Sx6Voltage stress Usx6, diode Dx7Voltage
Stress UDx7, diode Dx8Voltage stress UDx8, diode Dx9Voltage stress UDx9With diode Dx10Voltage stress UDx10Respectively such as
Shown in lower:
In formula, Udc2To export DC bus-bar voltage；X=a, b, c；
Capacitor C4The voltage U at both endsC4, capacitor C5The voltage U at both endsC5With capacitor C6The voltage U at both endsC6It is as follows respectively:
In formula, Udc2To export DC bus-bar voltage.
3. a kind of tetra- level rectifier of three-phase three-wire system Vienna according to claim 1, it is characterised in that: diode
Da7, diode Da8, diode Db7, diode Db8, diode Dc7With diode Dc8Working frequency be input power ua2, input
Power supply ub2With input power uc2Fundamental frequency.
4. a kind of tetra- level rectifier of three-phase three-wire system Vienna according to claim 1, it is characterised in that: to three-phase three
The key step that tetra- level rectifier of line Vienna is modulated is as follows:
1) carrier frequency is set as fs, amplitude VcAnd three layers of constant triangular carrier C (t)；First layer triangular carrier is denoted as C1
(t), second layer triangular carrier is denoted as C2(t)；Third layer triangular carrier is denoted as C3(t)；
2)A2The modulated signal m of circuitry phasea2(t)、B2The modulated signal m of circuitry phaseb2(t) and C2The modulated signal m of circuitry phasec2
(t), as follows respectively:
In formula, VmFor the amplitude of modulated signal；fmFor the frequency of modulated signal；M is modulation ratio；VcFor the width of triangular carrier C (t)
Value；t2To modulate the time；
3) modulating wave and triangular carrier that step 3 obtains are compared with phase laminating method using modulating wave, to generate 27
A control signal；27 control signals distinguish control switch pipe Sa4, switching tube Sa5, switching tube Sa6, diode Da7, diode
Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb7, switching tube Sb8, switching tube Sb9, diode
Db10, diode Db11, diode Db12, switching tube Sb4, switching tube Sb5, switching tube Sb6, switching tube Sc4, switching tube Sc5, switching tube
Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12On-off；
Conducting is indicated with 1, and 0 indicates shutdown, each switching device break-make situation of tetra- level rectifier of three-phase three-wire system Vi enna
It is specific as follows:
Input voltage is positive half cycle and output level is Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, diode Da7, two
Pole pipe Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switching tube Sb6, two
Pole pipe Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switching tube Sc5, open
Close pipe Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Switch state be
000100010000100010000100010；
Input voltage is positive half cycle and output level is 2/3Udc2When switching tube Sa4, switching tube Sa5, switching tube Sa6, diode Da7、
Diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switching tube Sb6、
Diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switching tube Sc5、
Switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Switch state
It is 110100100110100100110100100；
Input voltage is positive half cycle and output level is 1/3Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, diode
Da7, diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switching tube
Sb6, diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switching tube
Sc5, switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Switch
State is 101100100101100100101100100；
When input voltage is negative half period and output level is 0, switching tube Sa4, switching tube Sa5, switching tube Sa6, diode Da7, two poles
Pipe Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switching tube Sb6, two poles
Pipe Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switching tube Sc5, switch
Pipe Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Switch state be
000010001000010001000010001；
Input voltage is negative half period and output level is 1/3Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, diode
Da7, diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switching tube
Sb6, diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switching tube
Sc5, switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Switch
State is 101011000101011000101011000；
Input voltage is negative half period and output level is 2/3Udc2When, switching tube Sa4, switching tube Sa5, switching tube Sa6, diode
Da7, diode Da8, diode Da9, diode Da10, diode Da11, diode Da12, switching tube Sb4, switching tube Sb5, switching tube
Sb6, diode Db7, diode Db8, diode Db9, diode Db10, diode Db11, diode Db12, switching tube Sc4, switching tube
Sc5, switching tube Sc6, diode Dc7, diode Dc8, diode Dc9, diode Dc10, diode Dc11With diode Dc12Switch
State is 110011000110011000110011000.
5. a kind of tetra- level rectifier of three-phase four-wire system Vienna, it is characterised in that: mainly include A1Circuitry phase, B1Circuitry phase, C1
Circuitry phase, capacitor C1, capacitor C2a, capacitor C2b, capacitor C3With resistance R1；
Remember capacitor C1Both ends be respectively the end g and the end h；Remember capacitor C2aBoth ends be respectively the end h and the end j；Remember capacitor C2bBoth ends
The respectively end j and the end p；Remember capacitor C3Both ends be respectively the end p and the end q；
A1Circuitry phase, B1Circuitry phase and C1The end g, the end h, the end j, the end p and the end q are respectively connected to after circuitry phase is in parallel；
Capacitor C1With capacitor C2aIt is connected by the end h；Capacitor C2aWith capacitor C2bIt is connected by the end j；Capacitor C2bWith capacitor C3Pass through the end p
Series connection；
The end g series resistance R1The end q is accessed afterwards；
A1The circuit structure of circuitry phase is as follows:
AC power source ua1Both ends be denoted as the end e and the end f respectively；
E is terminated into capacitor C2aThe end j；
The end f is sequentially connected in series inductance La1With diode Da1Anode；Diode Da1Cathode series diode Da3Cathode；Two poles
Pipe Da3Anode connect switching tube Sa2Source electrode；Switching tube Sa2Grid it is hanging；Switching tube Sa2Drain electrode access the end h；Diode
Da3Anode connect switching tube Sa3Drain electrode；Switching tube Sa3Grid it is hanging；Switching tube Sa3Source electrode access the end p；
Diode Da1Cathode series diode Da5Anode；Diode Da5Cathode access the end g；
Diode Da1Cathode tandem tap pipe Sa1Drain electrode；Switching tube Sa1Grid it is hanging；Switching tube Sa1Source series two
Pole pipe Da2Anode；Diode Da2Cathode series diode Da1Anode；
Switching tube Sa1Source series diode Da4Anode；Diode Da4Cathode series diode Da3Anode；
Diode Da4Anode series diode Da6Cathode；Diode Da6Anode access the end q；
B1The circuit structure of circuitry phase is as follows:
AC power source ub1Both ends be denoted as the end e and the end l respectively；
The end l is sequentially connected in series inductance Lb1With diode Db1Anode；Diode Db1Cathode series diode Db3Cathode；Two poles
Pipe Db3Anode connect switching tube Sb2Source electrode；Switching tube Sb2Grid it is hanging；Switching tube Sb2Drain electrode access the end h；Diode
Db3Anode connect switching tube Sb3Drain electrode；Switching tube Sb3Grid it is hanging；Switching tube Sb3Source electrode access the end p；
Diode Db1Cathode series diode Db5Anode；Diode Db5Cathode access the end g；
Diode Db1Cathode tandem tap pipe Sb1Drain electrode；Switching tube Sb1Grid it is hanging；Switching tube Sb1Source series two
Pole pipe Db2Anode；Diode Db2Cathode series diode Db1Anode；
Switching tube Sb1Source series diode Db4Anode；Diode Db4Cathode series diode Db3Anode；
Diode Db4Anode series diode Db6Cathode；Diode Db6Anode access the end q；
C1The circuit structure of circuitry phase is as follows:
AC power source uc1Both ends be denoted as the end e and the end k respectively；
The end k is sequentially connected in series inductance Lc1With diode Dc1Anode；Diode Dc1Cathode series diode Dc3Cathode；Two poles
Pipe Dc3Anode connect switching tube Sc2Source electrode；Switching tube Sc2Grid it is hanging；Switching tube Sc2Drain electrode access the end h；Diode
Dc3Anode connect switching tube Sc3Drain electrode；Switching tube Sc3Grid it is hanging；Switching tube Sc3Source electrode access the end p；
Diode Dc1Cathode series diode Dc5Anode；Diode Dc5Cathode access the end g；
Diode Dc1Cathode tandem tap pipe Sc1Drain electrode；Switching tube Sc1Grid it is hanging；Switching tube Sc1Source series two
Pole pipe Dc2Anode；Diode Dc2Cathode series diode Dc1Anode；
Switching tube Sc1Source series diode Dc4Anode；Diode Dc4Cathode series diode Dc3Anode；
Diode Dc4Anode series diode Dc6Cathode；Diode Dc6Anode access the end q；
AC power source ua1, AC power source ub1With AC power source uC1Pass through the parallel connection of the end e.
6. a kind of tetra- level rectifier of three-phase four-wire system Vienna according to claim 1, it is characterised in that: diode Dx5
Voltage stress UDx5With diode Dx6Voltage stress UDx6It is as follows respectively:
In formula, Udc1DC bus-bar voltage is exported for tetra- level rectifier of three-phase four-wire system Vienna；X=a, b, c；
Switching tube Sx1Voltage stress Usx1, switching tube Sx2Voltage stress Usx2, switching tube Sx3Voltage stress Usx3, diode Dx1Voltage
Stress UDx1, diode Dx2Voltage stress UDx2, diode Dx3Voltage stress UDx3With diode Dx4Voltage stress UDx4It is as follows respectively
It is shown:
In formula, Udc1To export DC bus-bar voltage；X=a, b, c；
Capacitor C1The voltage U at both endsC1With capacitor C3The voltage U at both endsC3It is as follows respectively:
In formula, Udc1To export DC bus-bar voltage；
Capacitor C2aThe voltage U at both endsC2aWith capacitor C2bThe voltage U at both endsC2bIt is as follows respectively:
In formula, Udc1To export DC bus-bar voltage.
7. a kind of tetra- level rectifier of three-phase four-wire system Vienna according to claim 1, it is characterised in that: diode
Da1, diode Da2, diode Db1, diode Db2, diode Dc1With diode Dc2Working frequency be input power ua1, input
Power supply ub1With input power uc1Fundamental frequency.
8. a kind of tetra- level rectifier of three-phase four-wire system Vienna according to claim 1, it is characterised in that: to three-phase four
The key step that tetra- level rectifier of line Vienna is modulated is as follows:
1) carrier frequency is set as fs, amplitude VcAnd three layers of constant triangular carrier C (t)；First layer triangular carrier is denoted as C1
(t), second layer triangular carrier is denoted as C2(t)；Third layer triangular carrier is denoted as C3(t)；
2)A1The modulated signal m of circuitry phasea1(t)、B1The modulated signal m of circuitry phaseb1(t) and C1The modulated signal m of circuitry phasec1
(t), as follows respectively:
In formula, VmFor the amplitude of modulated signal；fmFor the frequency of modulated signal；M is modulation ratio；VcFor the width of triangular carrier C (t)
Value；t1To modulate the time；
Wherein, modulation ratio m is as follows:
In formula, VmFor the amplitude of modulated signal；VcFor the amplitude of triangular carrier C (t)；
3) modulating wave and triangular carrier that step 3 obtains are compared with phase laminating method using modulating wave, to generate 27
A control signal；27 control signals distinguish control switch pipe Sa1, switching tube Sa2, switching tube Sa3, diode Da1, diode
Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switching tube Sb3, diode
Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube Sc2, switching tube
Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6On-off；
Conducting is indicated with 1, and 0 indicates shutdown, each switching device break-make situation of tetra- level rectifier of three-phase four-wire system Vienna
It is specific as follows:
Input voltage is positive half cycle and output level is 1/2Udc1When, switching tube Sa1, switching tube Sa2, switching tube Sa3, diode
Da1, diode Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switching tube
Sb3, diode Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube
Sc2, switching tube Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6Switch shape
State is 000100010000100010000100010；
Input voltage is positive half cycle and output level is 1/6Udc1When, switching tube Sa1, switching tube Sa2, switching tube Sa3, diode
Da1, diode Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switching tube
Sb3, diode Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube
Sc2, switching tube Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6Switch shape
State is 110100100110100100110100100；
Input voltage is negative half period and output level is -1/6Udc1When, switching tube Sa1, switching tube Sa2, switching tube Sa3, diode
Da1, diode Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switching tube
Sb3, diode Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube
Sc2, switching tube Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6Switch shape
State is 101100100101100100101100100；
Input voltage is negative half period and output level is -1/2Udc1When, switching tube Sa1, switching tube Sa2, switching tube Sa3, diode
Da1, diode Da2, diode Da3, diode Da4, diode Da5, diode Da6, switching tube Sb1, switching tube Sb2, switching tube
Sb3, diode Db1, diode Db2, diode Db3, diode Db4, diode Db5, diode Db6, switching tube Sc1, switching tube
Sc2, switching tube Sc3, diode Dc1, diode Dc2, diode Dc3, diode Dc4, diode Dc5With diode Dc6Switch shape
State is 000010001000010001000010001.
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080239772A1 (en) * | 2007-03-30 | 2008-10-02 | Intel Corporation | Switched capacitor converters |
| CN201937493U (en) * | 2011-01-14 | 2011-08-17 | 南京师范大学 | Four-level inverter |
| CN105048842A (en) * | 2015-09-07 | 2015-11-11 | 阳光电源股份有限公司 | Single-phase four-level inverter and application circuit thereof |
| CN105207509A (en) * | 2015-10-22 | 2015-12-30 | 北京京仪椿树整流器有限责任公司 | Absorptive L-type four-level Boost circuit |
| CN105723607A (en) * | 2013-09-23 | 2016-06-29 | 西门子公司 | New four-level converter cell topology for cascaded modular multilevel converters |
| CN107659130A (en) * | 2017-10-20 | 2018-02-02 | 安徽工程大学 | A kind of control system and control method of three-phase tri-level VIENNA rectifier |
| CN107994794A (en) * | 2017-12-29 | 2018-05-04 | 重庆大学 | A kind of double-T shaped four level inverse conversions unit and its application circuit and modulator approach |
| CN108011399A (en) * | 2018-01-08 | 2018-05-08 | 湖南工业大学 | Source of resistance high-speed engine two-stage boosting grid-connected system based on VIENNA rectifier |
-
2018
- 2018-07-20 CN CN201810802579.1A patent/CN109004848A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080239772A1 (en) * | 2007-03-30 | 2008-10-02 | Intel Corporation | Switched capacitor converters |
| CN201937493U (en) * | 2011-01-14 | 2011-08-17 | 南京师范大学 | Four-level inverter |
| CN105723607A (en) * | 2013-09-23 | 2016-06-29 | 西门子公司 | New four-level converter cell topology for cascaded modular multilevel converters |
| CN105048842A (en) * | 2015-09-07 | 2015-11-11 | 阳光电源股份有限公司 | Single-phase four-level inverter and application circuit thereof |
| CN105207509A (en) * | 2015-10-22 | 2015-12-30 | 北京京仪椿树整流器有限责任公司 | Absorptive L-type four-level Boost circuit |
| CN107659130A (en) * | 2017-10-20 | 2018-02-02 | 安徽工程大学 | A kind of control system and control method of three-phase tri-level VIENNA rectifier |
| CN107994794A (en) * | 2017-12-29 | 2018-05-04 | 重庆大学 | A kind of double-T shaped four level inverse conversions unit and its application circuit and modulator approach |
| CN108011399A (en) * | 2018-01-08 | 2018-05-08 | 湖南工业大学 | Source of resistance high-speed engine two-stage boosting grid-connected system based on VIENNA rectifier |
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