CN104578725B - The dual-level matrix frequency converter topological structure of exportable alternating voltage and DC voltage - Google Patents
The dual-level matrix frequency converter topological structure of exportable alternating voltage and DC voltage Download PDFInfo
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- CN104578725B CN104578725B CN201410837863.4A CN201410837863A CN104578725B CN 104578725 B CN104578725 B CN 104578725B CN 201410837863 A CN201410837863 A CN 201410837863A CN 104578725 B CN104578725 B CN 104578725B
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/10—Arrangements 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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Abstract
The invention discloses a kind of exportable alternating voltage and the dual-level matrix frequency converter topological structure of DC voltage, this structure includes following part：Three-phase alternating-current supply, three-phase filter inductance, voltage-source recitifier, current source inverter, three-phase alternating current load, AC load side LC wave filter, DC output circuit；The topological structure that the present invention is provided can have larger help while output AC voltage and DC voltage, can realize AC/DC output integration operation in the application scenarios such as distributed generation system to mitigating system bulk and weight；And ac output voltage amplitude and VD amplitude simultaneously greater than also can simultaneously be less than alternating current input power supplying voltage magnitude, widen the range of regulation of existing dual-level matrix frequency converter.
Description
Technical field
The present invention relates to a kind of electrical energy changer.
Background technology
Matrix converter is a kind of new AC-AC converters, with small volume, lightweight and long working life spy
Point, is taken as one of replacement topology of double pwm converters of current extensive application, is at home and abroad widely studied.Stage type square
Battle array converter is a kind of subclass of matrix converter, including current type converter (Current Source Converter, CSC)
With two parts of voltage source converter (Voltage Source Converter, VSC), two parts pass through direct current intermediate dc
Bus is connected, but without DC energy storage element.Compared to classical matrix converter, dual-level matrix frequency converter has clamp circuit letter
The advantages of single, change of current control strategy is easily realized, can reduce number of switches under certain condition, obtain the extensive of researcher
Concern.
Regular alternating current electric energy conversion system based on dual-level matrix frequency converter mainly has two kinds of structures, such as accompanying drawing 1 and attached
Shown in Fig. 2.In fig. 1, three-phase alternating-current supply is connected to the three-phase alternating current input of CSC by LC wave filters, and three-phase alternating current is born
Load is connected to the three-phase alternating current output end of VSC by filter inductance.In fig 2, three-phase alternating-current supply is connected to by filter inductance
The three-phase alternating current input of VSC, three-phase alternating current load is connected to the three-phase alternating current output end of CSC by LC wave filters.Stage type square
Battle array converter has following voltage transmission relation：Exchange terminal voltage amplitude of the exchange terminal voltage amplitude of VSC less than CSC
0.866 times.If ignoring filter inductance pressure drop, such as drawn a conclusion：In fig. 1, load voltage amplitude is less than power supply electricity
0.866 times of pressure amplitude value, i.e., attached system shown in Figure 1 can only realize decompression transformation；In fig 2, supply voltage amplitude is less than negative
0.866 times of voltage is carried, i.e., attached system shown in Figure 2 can only realize boosting inverter.
In some industrial applications, such as in distributed generation system, AC load and DC load exist simultaneously.This
It is required that electrical energy changer can produce AC load voltage, DC load voltage can be produced again.Additionally, the electricity of distributed power source
Pressure amplitude value fluctuation range is general wider, and this requires that electrical energy changer has load voltage adjustable range wider.For this two
Aspect problem, the present invention is based on dual-level matrix frequency converter, it is proposed that a kind of not only exportable alternating voltage but also exportable direct current
The topological structure of pressure.In this topological structure, AC load voltage and DC load voltage can be simultaneously greater than also simultaneously small
In supply voltage amplitude so that the topological structure has range of regulation wider.
The content of the invention
Technical problem to be solved：
It is an object of the invention to provide a kind of exportable alternating voltage and DC voltage and two kinds of voltage magnitudes can be big
In again be smaller than supply voltage amplitude based on dual-level matrix frequency converter topological structure.
Technical scheme：
In order to realize function above, the invention provides a kind of exportable alternating voltage and the stage type matrix of DC voltage
Converter topology structure, including three-phase alternating-current supply, mains side filter inductance, voltage-source recitifier VSC, current source inverter
CSC, three-phase alternating current load, AC load side LC wave filter, DC output circuit；Three-phase alternating-current supply passes through mains side filtered electrical
Sense is connected to the three-phase alternating current input of voltage-source recitifier VSC, and three-phase alternating current load is connected to by AC load side LC wave filters
The three-phase alternating current output end of current source inverter CSC；It is characterized in that：The DC output circuit is connected on dc bus,
Specifically,
The DC output circuit includes the 13rd wholly-controled device V13, the 13rd diode D13, DC load RLD,
Seven filter inductance L7, the 4th filter capacitor C4；The colelctor electrode of the 13rd wholly-controled device V13 and the sun of the 13rd diode D13
Pole is connected to the dc bus anode P1 of voltage-source recitifier VSC, the emitter stage of the 13rd wholly-controled device V13, the 4th filtered electrical
Hold one end, the DC load R of C4LDNegative terminal be connected to current source inverter CSC dc bus anode P2, DC load RLDJust
End is connected with one end of the 7th filter inductance L7, the other end of the 4th filter capacitor C4, the other end of the 7th filter inductance L7 and
The negative electrode of the 13rd diode D13 is connected.
Further, the voltage-source recitifier VSC includes first to the 6th wholly-controled device V1, V2, V3, V4, V5, V6
With first to the 6th diode D1, D2, D3, D4, D5, D6；
The emitter stage of the first wholly-controled device V1, the colelctor electrode of the second wholly-controled device V2, the anode of the first diode D1,
The negative electrode of the second pole pipe D2 is connected and draws as the U cross streams inputs of voltage-source recitifier；3rd wholly-controled device V3's
Emitter stage, the colelctor electrode of the 4th wholly-controled device V4, the anode of the 3rd diode D3, the negative electrode of the 4th diode D4 are connected and draw
Go out as the V cross streams inputs of voltage-source recitifier；The emitter stage of the 5th wholly-controled device V5, the 6th wholly-controled device V6
Colelctor electrode, the anode of the 5th diode D5, the negative electrode of the 6th diode D6 are connected and draw and intersect as the W of voltage-source recitifier
Stream input；
The colelctor electrode of the first wholly-controled device V1, the negative electrode of the first diode D1, the colelctor electrode of the 3rd wholly-controled device V3,
The negative electrode of the 3rd diode D3, the colelctor electrode of the 5th wholly-controled device V5, the negative electrode of the 5th diode D5 are connected and form voltage
The dc bus anode P1 of type rectifier VSC is first dc bus anode P1；
The emitter stage of the second wholly-controled device V2, the anode of the second diode D2, the emitter stage of the 4th wholly-controled device V4,
The anode of the 4th diode D4, the emitter stage of the 6th wholly-controled device V6 are connected and form dc bus negative terminal N.
Further, the current source inverter CSC include the 7th to the 12nd wholly-controled device V7, V8, V9, V10,
V11, V12 and the 7th to the 12nd diode D7, D8, D9, D10, D11, D12；
The colelctor electrode of the 7th wholly-controled device V7 and the negative electrode of the 7th diode D7 are connected, the hair of the 7th wholly-controled device V7
The anode of emitter-base bandgap grading and the 8th diode D8 is connected and draws as A cross streams output ends, the negative electrode and the 8th of the 8th diode D8
The colelctor electrode of wholly-controled device V8 is connected；
The colelctor electrode of the 9th wholly-controled device V9 and the negative electrode of the 9th diode D9 are connected, the hair of the 9th wholly-controled device V9
The anode of emitter-base bandgap grading and the tenth diode D10 is connected and draws as B cross streams output ends, the negative electrode of the tenth diode D10 and
The colelctor electrode of ten wholly-controled device V10 is connected；
The colelctor electrode of the 11st wholly-controled device V11 and the negative electrode of the 11st diode D11 are connected, the 11st full-control type device
The anode of the emitter stage of part V11 and the 12nd diode D12 is connected and draws as C cross streams output ends, the 12nd diode
The colelctor electrode of the negative electrode of D12 and the 12nd wholly-controled device V12 is connected；
The anode of the 7th diode D7, the anode of the 9th diode D9, the anode of the 11st diode D11 are connected and are formed
Current source inverter CSC dc bus anodes P2 is Article 2 dc bus anode P2, anode, the eight convergent points of the 6th diode D6
The emitter stage of control type device V8, the emitter stage of the tenth wholly-controled device V10, the emitter stage of the 12nd wholly-controled device V12 connect
To dc bus negative terminal N.
Further, the three-phase alternating-current supply includes U cross streams power supplys USU, V cross streams power supplys USVWith W cross streams
Power supply USW；
Mains side filter inductance includes first to the 3rd filter inductance L1, L2, L3, U cross streams power supplys USU, V cross streams electricity
Source USV, W cross streams power supplys USWOne end be connected and form mains neutral point N1；U cross streams power supplys USUAnother terminate to first
One end of filter inductance L1, another U cross streams inputs for terminating to voltage-source recitifier of the first filter inductance L1；V intersects
Stream power supply USVAnother one end for terminating to the second filter inductance L2, the another of the second filter inductance L2 terminate to voltage-type rectification
The V cross streams inputs of device；W cross streams power supplys USWAnother one end for terminating to the 3rd filter inductance L3, the 3rd filter inductance
Another W cross streams inputs for terminating to voltage-source recitifier of L3.
Further, the three-phase alternating current load includes the intersecting current load R of ALA, the intersecting current load R of BLBWith C cross streams
Load RLC, LC wave filter in AC load side includes the 4th to the 6th filter inductance L4, L5, L6 and the first to the 3rd filter capacitor
C1、C2、C3；
The intersecting current load R of ALA, the intersecting current load R of BLB, the intersecting current load R of CLC, the first filter capacitor C1, the second filtered electrical
Appearance C2, one end of the 3rd filter capacitor C3 are connected and form load neutral point N2, A and intersect current load RLAAnother terminate to the 4th
One end of filter inductance L4, another A cross streams output ends for terminating to current source inverter of the 4th filter inductance L4, the first filter
Another A cross streams output ends for terminating to current source inverter of ripple electric capacity C1；
The intersecting current load R of BLBAnother one end for terminating to the 5th filter inductance L5, the other end of the 5th filter inductance L5
The B cross streams output ends of current source inverter are connected to, another B for terminating to current source inverter of the second filter capacitor C2 intersects
Stream output end；
The intersecting current load R of CLCAnother one end for terminating to the 6th filter inductance L6, the other end of the 6th filter inductance L6
The C cross streams output ends of current source inverter are connected to, another C for terminating to current source inverter of the 3rd filter capacitor C3 intersects
Stream output end.
Beneficial effect：
1st, the present invention can simultaneously produce AC load voltage and DC load voltage, it is adaptable to which distributed generation system etc. will
Alternating current-direct current is asked to export the industrial applications of integration.
2nd, in the present invention, AC load voltage and DC load voltage can be simultaneously greater than supply voltage amplitude, also can be simultaneously
Less than supply voltage amplitude, can realize that buck is converted, widen the range of operation of dual-level matrix frequency converter.
3rd, the adjustable range of AC load voltage and DC load voltage is unrelated with load current, suitable with preferably load
Ying Xing.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples：
Fig. 1 is based on the regular alternating current electric energy conversion system of dual-level matrix frequency converter；
Fig. 2 is based on the regular alternating current electric energy conversion system of dual-level matrix frequency converter；
The dual-level matrix frequency converter topology knot of a kind of Fig. 3 exportable alternating voltages proposed by the present invention and DC voltage
Structure；
Fig. 4 AC voltages transmissions ratio (q1) and DC voltage transfer ratio (q2) relation.
Specific embodiment
The present invention provides the dual-level matrix frequency converter topological structure of a kind of exportable alternating voltage and DC voltage, to make
The purpose of the present invention, technical scheme and effect are clearer, clearly, and referring to the drawings and give an actual example to it is of the invention further in detail
Describe in detail bright.It should be appreciated that specific implementation described herein is only used to explain the present invention, it is not intended to limit the present invention.
System architecture proposed by the present invention is as shown in Figure 3.Three-phase alternating-current supply is connected to three by mains side filter inductance
The exchange input side of phase voltage type rectifier, the structure of voltage-source recitifier and common three phase full bridge voltage type PWM rectifier
Or the structure of three phase full bridge Voltage Source PWM Inverter is identical.Three-phase alternating current load is connected to by AC load side LC wave filters
The exchange outlet side of Three-phase Current Source Inverter, the structure of current source inverter and common three phase full bridge current type PWM rectification
The structure of device or three phase full bridge current source PWM inverter is identical.Three-phase voltage type rectifier and Three-phase Current Source Inverter are logical
A wholly-controled device is crossed to be connected.The wholly-controled device is a part for DC output circuit.Its remaining part of DC output circuit
Dividing includes DC load, LC wave filters and a diode.
Specifically, the direct current of the dual-level matrix frequency converter topological structure of the exportable alternating voltage and DC voltage is defeated
Go out to be electrically connected on dc bus, specifically,
The DC output circuit includes the 13rd wholly-controled device V13, the 13rd diode D13, DC load RLD,
Seven filter inductance L7, the 4th filter capacitor C4；The colelctor electrode of the 13rd wholly-controled device V13 and the sun of the 13rd diode D13
Pole is connected to the dc bus anode P1 of voltage-source recitifier VSC, the emitter stage of the 13rd wholly-controled device V13, the 4th filtered electrical
Hold one end, the DC load R of C4LDNegative terminal be connected to current source inverter CSC dc bus anode P2, DC load RLDJust
End is connected with one end of the 7th filter inductance L7, the other end of the 4th filter capacitor C4, the other end of the 7th filter inductance L7 and
The negative electrode of the 13rd diode D13 is connected.
The voltage-source recitifier includes first to the 6th wholly-controled device V1, V2, V3, V4, V5, V6 and first to the 6th
Diode D1, D2, D3, D4, D5, D6；
The emitter stage of the first wholly-controled device V1, the colelctor electrode of the second wholly-controled device V2, the anode of the first diode D1,
The negative electrode of the second pole pipe D2 is connected and draws as the U cross streams inputs of voltage-source recitifier；3rd wholly-controled device V3's
Emitter stage, the colelctor electrode of the 4th wholly-controled device V4, the anode of the 3rd diode D3, the negative electrode of the 4th diode D4 are connected and draw
Go out as the V cross streams inputs of voltage-source recitifier；The emitter stage of the 5th wholly-controled device V5, the 6th wholly-controled device V6
Colelctor electrode, the anode of the 5th diode D5, the negative electrode of the 6th diode D6 are connected and draw and intersect as the W of voltage-source recitifier
Stream input；
The colelctor electrode of the first wholly-controled device V1, the negative electrode of the first diode D1, the colelctor electrode of the 3rd wholly-controled device V3,
The negative electrode of the 3rd diode D3, the colelctor electrode of the 5th wholly-controled device V5, the negative electrode of the 5th diode D5 are connected and form first
Bar dc bus anode P1；
The emitter stage of the second wholly-controled device V2, the anode of the second diode D2, the emitter stage of the 4th wholly-controled device V4,
The anode of the 4th diode D4, the emitter stage of the 6th wholly-controled device (V6) are connected and form dc bus negative terminal N.
The current source inverter includes the 7th to the 12nd wholly-controled device V7, V8, V9, V10, V11, V12 and the 7th
To the 12nd diode D7, D8, D9, D10, D11, D12；
The colelctor electrode of the 7th wholly-controled device V7 and the negative electrode of the 7th diode D7 are connected, the hair of the 7th wholly-controled device V7
The anode of emitter-base bandgap grading and the 8th diode D8 is connected and draws as A cross streams output ends, the negative electrode and the 8th of the 8th diode D8
The colelctor electrode of wholly-controled device V8 is connected；
The colelctor electrode of the 9th wholly-controled device V9 and the negative electrode of the 9th diode D9 are connected, the hair of the 9th wholly-controled device V9
The anode of emitter-base bandgap grading and the tenth diode D10 is connected and draws as B cross streams output ends, the negative electrode of the tenth diode D10 and
The colelctor electrode of ten wholly-controled device V10 is connected；
The colelctor electrode of the 11st wholly-controled device V11 and the negative electrode of the 11st diode D11 are connected, the 11st full-control type device
The anode of the emitter stage of part V11 and the 12nd diode D12 is connected and draws as C cross streams output ends, the 12nd diode
The colelctor electrode of the negative electrode of D12 and the 12nd wholly-controled device V12 is connected；
The anode of the 7th diode D7, the anode of the 9th diode D9, the anode of the 11st diode D11 are connected and are formed
Article 2 dc bus anode P2, the anode of the 6th diode D6, the emitter stage of the 8th wholly-controled device V8, the tenth full-control type device
The emitter stage of part V10, the emitter stage of the 12nd wholly-controled device V12 are connected to dc bus negative terminal N.
The three-phase alternating-current supply includes U cross streams power supplys USU, V cross streams power supplys USVWith W cross streams power supplys USW；
Mains side filter inductance includes first to the 3rd filter inductance L1, L2, L3, U cross streams power supplys USU, V cross streams electricity
Source USV, W cross streams power supplys USWOne end be connected and form mains neutral point N1；U cross streams power supplys USUAnother terminate to first
One end of filter inductance L1, another U cross streams inputs for terminating to voltage-source recitifier of the first filter inductance L1；V intersects
Stream power supply USVAnother one end for terminating to the second filter inductance L2, the another of the second filter inductance L2 terminate to voltage-type rectification
The V cross streams inputs of device；W cross streams power supplys USWAnother one end for terminating to the 3rd filter inductance L3, the 3rd filter inductance
Another W cross streams inputs for terminating to voltage-source recitifier of L3.
The three-phase alternating current load includes the intersecting current load R of ALA, the intersecting current load R of BLBCurrent load R intersecting with CLC, exchange
Load-side LC wave filters include the 4th to the 6th filter inductance L4, L5, L6 and first to the 3rd filter capacitor C1, C2, C3；
The intersecting current load R of ALA, the intersecting current load R of BLB, the intersecting current load R of CLC, the first filter capacitor C1, the second filtered electrical
Appearance C2, one end of the 3rd filter capacitor C3 are connected and form load neutral point N2, A and intersect current load RLAAnother terminate to the 4th
One end of filter inductance L4, another A cross streams output ends for terminating to current source inverter of the 4th filter inductance L4, the first filter
Another A cross streams output ends for terminating to current source inverter of ripple electric capacity C1；
The intersecting current load R of BLBAnother one end for terminating to the 5th filter inductance L5, the other end of the 5th filter inductance L5
The B cross streams output ends of current source inverter are connected to, another B for terminating to current source inverter of the second filter capacitor C2 intersects
Stream output end；
The intersecting current load R of CLCAnother one end for terminating to the 6th filter inductance L6, the other end of the 6th filter inductance L6
The C cross streams output ends of current source inverter are connected to, another C for terminating to current source inverter of the 3rd filter capacitor C3 intersects
Stream output end.
Realize that the function of AC and DC lifting/voltage reducing conversion is explained to the system below.Define three-phase alternating-current supply
Voltage (the u i.e. in accompanying drawing 3SU、uSV、uSW) amplitude be uSM, DC bus-bar voltage (the i.e. bus of Three-phase PWM Voltage Rectifier
Voltage between P1 and bus N) it is uDC1, three-phase current type PWM inverter DC bus-bar voltage (i.e. bus P2 and bus N it
Between voltage) be uDC2, the three-phase alternating current load voltage (u i.e. in accompanying drawing 3LA、uLB、uLC) amplitude be uLm, define DC load
Voltage is uLD.These variables are the average value in a switch periods, and its reference direction is as shown in Figure 3.
If the modulation ratio of current source inverter is mc, then the space vector modulation algorithm commonly used according to current type converter can
：
If the dutycycle of the wholly-controled device (V13 i.e. in accompanying drawing 2) of DC output circuit is d.It is located at a switch week
In phase, the DC bus-bar voltage of voltage-source recitifier is u when V13 is turned onDC1,on, it meets：
uDC1,on=uDC2 (2)
When V13 is turned off, to ensure the DC bus current afterflow passage of voltage-source recitifier, diode D13 leads naturally
It is logical.The DC bus-bar voltage for now setting voltage-source recitifier is uDC1,off, it meets：
uDC1,off=uDC2+uLD (3)
Then in a switch periods, the average value u of the DC bus-bar voltage of voltage-source recitifierDC1Meet：
uDC1=duDC1,on+(1-d)uDC1,off (4)
Formula (1)-formula (3) is updated to formula (4) and can obtained：
In a practical situation, voltage-source recitifier should be kept to be in linear modulation region, otherwise source current will occur abnormal
Become, now supply voltage amplitude uSMShould meet：
Similarly, it is guarantee AC load voltage and the waveform quality of DC load voltage, the modulation ratio of current source inverter
mcDutycycle d with wholly-controled device V13 should be no more than 1 nonnegative number, i.e.,：
0≤mc≤1,0≤d≤1 (7)
When being worked due to current source inverter, V13 can be turned on and also turned off, i.e. DC output circuit and current source inverter
Do not influence mutually.Therefore both can work independently, and mcThere is no restriction relation and d between.Formula (6) and formula (7) are updated to
Formula (5) can be obtained：
Define AC voltages transmission and compare q1=uLM/uSM, work as q1Show that AC load voltage is less than supply voltage during less than 1；
Work as q1Show that AC load voltage is more than supply voltage during more than 1.DC voltage transfer ratio q is defined simultaneously2=uLD/uSM, work as q2
Show that DC load voltage is less than supply voltage during less than 1；Work as q2Show that DC load voltage is more than supply voltage during more than 1.
Then from formula (8)：
Q can be obtained by formula (9)1And q2Relation, as shown in Figure 4, figure linear modulation region be inequality (9) set up
Region, the over-modulation region then invalid region of expression (9).Work as q1During more than 1.15, q2Can change in the range of [0 ,+∞],
I.e. DC load voltage can arbitrarily be adjusted in the range of [0 ,+∞]；Work as q2During more than 1.73, q1Can become in the range of [0 ,+∞]
Change, i.e., AC load voltage can arbitrarily be adjusted in the range of [0 ,+∞].Particularly, 1. dash area represents q in accompanying drawing 41And q2
Respectively less than 1 linear modulation region, in the region, AC load voltage uLMWith DC load voltage uLDRespectively less than power supply is electric
Pressure amplitude value uSM；2. dash area represents q in accompanying drawing 41And q2It is all higher than 1 linear modulation region, in the region, AC load
Voltage uLMWith DC load voltage uLDIt is all higher than supply voltage amplitude uSM.Therefore, topological structure proposed by the present invention has wider
Range of regulation.
Because current source inverter and DC output circuit can work independently, therefore the entirely control strategy ten of topological structure
Divide simple.For current source inverter and potential source rectifier, can be using conventional dual-level matrix frequency converter control strategy.And
For DC output circuit, because it includes a wholly-controled device V13, can be produced by the closed-loop control of DC load voltage
The duty cycle signals of V13.
It is understood that for those of ordinary skills, can be with technology according to the present invention scheme and its hair
Bright design is subject to equivalent or change, and all these changes or replacement should all belong to the guarantor of appended claims of the invention
Shield scope.
Claims (5)
1. a kind of dual-level matrix frequency converter topological structure of exportable alternating voltage and DC voltage, including three-phase alternating current
Source, mains side filter inductance, voltage-source recitifier（VSC）, current source inverter（CSC）, three-phase alternating current load, AC load side
LC wave filters, DC output circuit；Three-phase alternating-current supply is connected to voltage-source recitifier by mains side filter inductance（VSC）Three
Cross streams input, three-phase alternating current load is connected to current source inverter by AC load side LC wave filters（CSC）Three intersect
Stream output end；It is characterized in that：The DC output circuit is connected on dc bus, specifically,
The DC output circuit includes the 13rd wholly-controled device (V13), the 13rd diode (D13), DC load (RLD)、
7th filter inductance (L7), the 4th filter capacitor (C4)；The colelctor electrode and the 13rd diode of the 13rd wholly-controled device (V13)
(D13) anode is connected to voltage-source recitifier（VSC）Dc bus anode (P1), the hair of the 13rd wholly-controled device (V13)
One end, the DC load (R of emitter-base bandgap grading, the 4th filter capacitor (C4)LD) negative terminal be connected to current source inverter（CSC）Dc bus is just
End (P2), DC load (RLD) anode be connected with one end of the 7th filter inductance (L7), the 4th filter capacitor (C4) it is another
End, the other end of the 7th filter inductance (L7) are connected with the negative electrode of the 13rd diode (D13).
2. the dual-level matrix frequency converter topology of a kind of exportable alternating voltage according to claim 1 and DC voltage is tied
Structure, it is characterised in that：
The voltage-source recitifier（VSC）Arrived including the first to the 6th wholly-controled device (V1, V2, V3, V4, V5, V6) and first
6th diode (D1, D2, D3, D4, D5, D6)；
The emitter stage of the first wholly-controled device (V1), the colelctor electrode of the second wholly-controled device (V2), the sun of the first diode (D1)
Pole, the negative electrode of the second pole pipe (D2) are connected and draw as the U cross streams inputs of voltage-source recitifier；3rd wholly-controled device
(V3) emitter stage, the colelctor electrode of the 4th wholly-controled device (V4), the anode of the 3rd diode (D3), the 4th diode (D4)
Negative electrode is connected and draws as the V cross streams inputs of voltage-source recitifier；Emitter stage, the 6th of the 5th wholly-controled device (V5)
The colelctor electrode of wholly-controled device (V6), the anode of the 5th diode (D5), the negative electrode of the 6th diode (D6) are connected and draw work
It is the W cross streams inputs of voltage-source recitifier；
The colelctor electrode of the first wholly-controled device (V1), the negative electrode of the first diode (D1), the current collection of the 3rd wholly-controled device (V3)
Pole, the negative electrode of the 3rd diode (D3), the colelctor electrode of the 5th wholly-controled device (V5), the negative electrode of the 5th diode (D5) are connected
And form voltage-source recitifier（VSC）Dc bus anode (P1) be first dc bus anode (P1)；
The emitter stage of the second wholly-controled device (V2), the anode of the second diode (D2), the transmitting of the 4th wholly-controled device (V4)
Pole, the anode of the 4th diode (D4), the emitter stage of the 6th wholly-controled device (V6), the anode of the 6th diode (D6) are connected simultaneously
Form dc bus negative terminal (N).
3. the dual-level matrix frequency converter topology of a kind of exportable alternating voltage according to claim 1 and DC voltage is tied
Structure, it is characterised in that：
The current source inverter（CSC）Including the 7th to the 12nd wholly-controled device (V7, V8, V9, V10, V11, V12) and
Seven to the 12nd diodes (D7, D8, D9, D10, D11, D12)；
The colelctor electrode of the 7th wholly-controled device (V7) and the negative electrode of the 7th diode (D7) are connected, the 7th wholly-controled device (V7)
The anode of emitter stage and the 8th diode (D8) is connected and draws as A cross streams output ends, the negative electrode of the 8th diode (D8)
Colelctor electrode with the 8th wholly-controled device (V8) is connected；
The colelctor electrode of the 9th wholly-controled device (V9) and the negative electrode of the 9th diode (D9) are connected, the 9th wholly-controled device (V9)
The anode of emitter stage and the tenth diode (D10) is connected and draws as B cross streams output ends, the moon of the tenth diode (D10)
Pole is connected with the colelctor electrode of the tenth wholly-controled device (V10)；
The colelctor electrode of the 11st wholly-controled device (V11) and the negative electrode of the 11st diode (D11) are connected, the 11st full-control type device
The anode of the emitter stage of part (V11) and the 12nd diode (D12) is connected and draws as C cross streams output ends, the 12nd
The colelctor electrode of the negative electrode of pole pipe (D12) and the 12nd wholly-controled device (V12) is connected；
The anode of the 7th diode (D7), the anode of the 9th diode (D9), the anode of the 11st diode (D11) are connected and shape
Into current source inverter（CSC）Dc bus anode (P2) is Article 2 dc bus anode (P2), the 8th wholly-controled device
(V8) emitter stage, the emitter stage of the tenth wholly-controled device (V10), the emitter stage of the 12nd wholly-controled device (V12) are connected to
Dc bus negative terminal (N).
4. the dual-level matrix frequency converter topology of a kind of exportable alternating voltage according to claim 2 and DC voltage is tied
Structure, it is characterised in that：
The three-phase alternating-current supply includes U cross streams power supplys (USU), V cross streams power supplys (USV) and W cross streams power supplys (USW)；
Mains side filter inductance includes the first to the 3rd filter inductance (L1, L2, L3), U cross streams power supplys (USU), V cross streams electricity
Source (USV), W cross streams power supplys (USW) one end be connected and form mains neutral point (N1)；U cross streams power supplys (USU) the other end
It is connected to one end of the first filter inductance (L1), another U cross streams for terminating to voltage-source recitifier of the first filter inductance (L1)
Input；V cross streams power supplys (USV) another one end for terminating to the second filter inductance (L2), the second filter inductance (L2) it is another
One end is connected to the V cross streams inputs of voltage-source recitifier；W cross streams power supplys (USW) another terminate to the 3rd filter inductance
(L3) one end, another W cross streams inputs for terminating to voltage-source recitifier of the 3rd filter inductance (L3).
5. the dual-level matrix frequency converter topology of a kind of exportable alternating voltage according to claim 3 and DC voltage is tied
Structure, it is characterised in that：
The three-phase alternating current load includes that A intersects current load (RLA), the intersecting current load (R of BLB) and the intersecting current load (R of CLC), hand over
Current load side LC wave filter include the 4th to the 6th filter inductance (L4, L5, L6) and the first to the 3rd filter capacitor (C1, C2,
C3)；
A intersects current load (RLA), the intersecting current load (R of BLB), the intersecting current load (R of CLC), the first filter capacitor (C1), second filter
Ripple electric capacity (C2), one end of the 3rd filter capacitor (C3) are connected and form load neutral point (N2), and A intersects current load (RLA) it is another
One end is connected to one end of the 4th filter inductance (L4), another A phases for terminating to current source inverter of the 4th filter inductance (L4)
Ac output end, another A cross streams output ends for terminating to current source inverter of the first filter capacitor (C1)；
B intersects current load (RLB) another one end for terminating to the 5th filter inductance (L5), the 5th filter inductance (L5) it is another
Terminate to the B cross streams output ends of current source inverter, another B for terminating to current source inverter of the second filter capacitor (C2)
Cross streams output end；
C intersects current load (RLC) another one end for terminating to the 6th filter inductance (L6), the 6th filter inductance (L6) it is another
Terminate to the C cross streams output ends of current source inverter, another C for terminating to current source inverter of the 3rd filter capacitor (C3)
Cross streams output end.
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| CN107508471B (en) * | 2016-06-14 | 2020-11-06 | 松下知识产权经营株式会社 | Power conversion circuit, power conversion device, power transmission device, power reception device, and power transmission system |
| CN107612316A (en) * | 2017-09-26 | 2018-01-19 | 广东工业大学 | A kind of multiport electric power electric transformer of alternating current-direct current mixing output |
| CN107482887A (en) * | 2017-09-26 | 2017-12-15 | 广东工业大学 | A kind of four port electric power electric transformers |
| CN109873565B (en) * | 2019-03-11 | 2020-09-08 | 中国矿业大学 | Novel topology of two-stage matrix converter and common-mode voltage suppression strategy thereof |
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