CN105262355B - A kind of multiport inverter - Google Patents
A kind of multiport inverter Download PDFInfo
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- CN105262355B CN105262355B CN201510626636.1A CN201510626636A CN105262355B CN 105262355 B CN105262355 B CN 105262355B CN 201510626636 A CN201510626636 A CN 201510626636A CN 105262355 B CN105262355 B CN 105262355B
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Abstract
The invention discloses a kind of multiport inverter, including N number of power distribution module, (N+1) a direct current input source and inverter module, wherein N is the integer more than or equal to 1；N number of power distribution module is sequentially connected, wherein the 1st power distribution module is connected with the anode of two direct current input sources, remaining each power distribution module is only connected with the anode of a direct current input source, n-th power distribution module is connected with the positive input terminal of inverter module simultaneously, and the negative terminal of all (N+I) a direct current input sources is all connected with the negative input end of inverter module.The present invention only just can be achieved at the same time power transmission and the transformation between (N+I) a independent direct current input source and AC load or power grid by an inverter module, the function of multiple inverters is realized, the advantage high with power density, volume cost is low；The voltage stress of power device in N number of power distribution module of the present invention is equal to the voltage difference of each direct current input source, has the advantages that voltage stress is low.
Description
Technical field
The present invention relates to converters technical fields, especially DC-AC transformation of electrical energy technical field.
Background technology
Inverter can realize the transmission of the bidirectional energy between DC power supply and AC load or AC network and transformation,
In fields such as renewable energy power generation, intelligent grid, electric vehicle, aerospaces, tool has been widely used.
Traditional inverter only includes a direct-flow input end mouth and an ac output end mouth, i.e., can only realize one directly
Flow input source and a power conversion between AC load or AC network.However, in renewable energy power generation, intelligence electricity
In net, energy storage constant power system, it usually needs multiple direct current input sources are connected with inverter.Such as：Distributed photovoltaic is grid-connected
In electricity generation system, need multiple distributed photovoltaic powers with inverter being connected；In the integrated power supply system of family light storage, need by
Photovoltaic and accumulator are connected with inverter simultaneously；It is then needed in distributed energy storage system by multiple energy storage devices and inverter phase
Even.To achieve the goals above, existing solution is that each independent direct current input source is first passed through DC converter to connect
It is connected to a public DC bus, then inverter is connected with the common DC bus, to solve multiple independent direct currents
The problem of input source is connect with inverter.But this solution needs to use additional DC converter, not only increases
The cost of system, volume and weight, and increase the loss of system power transformation, reduce system effectiveness.
Document " Dongsen Sun, Baoming Ge, Weihua Liang, Haitham Abu-Rub, and Fang
Zheng Peng.An Energy Stored Quasi-Z-Source Cascade Multilevel Inverter-Based
Photovoltaic Power Generation System[J].IEEE Transactions on Industrial
Electronics, 2015,62 (9)：5458-5467. " is proposed multiple quasi- concatenated cascade connection type multi input inversions of Z-source inverter
Device structure, the inverter access while capable of realizing multiple distributed photovoltaics, distributed energy storage accumulator, but each is distributed
Formula AM access module is required for using the independent quasi- sources a Z inverter circuit, and there are many used active and passive device quantity, one
Determine to affect the Energy Efficiency Ratio of system in degree.
Invention content
Goal of the invention：In order to overcome the deficiencies in the prior art, the present invention provides a kind of multiport inverters, use
In solution inverter existing skill when multiple direct current input sources and/or DC bus are connect with AC load or AC network
Art problem.
To achieve the above object, the technical solution adopted by the present invention is：
The multiport inverter is by N number of power distribution module (1,2 ... N), (N+1) a direct current input source (Vin1、
Vin2…Vin(N+1)) and inverter module (20) constitute, wherein N is integer equal to 1 or more than 1, and power distribution module includes just
End, negative terminal and the ends O.
When the quantity N of power distribution module is equal to 1, the anode connection first of the 1st power distribution module (1) is straight
Flow input source (Vin1) anode, the ends O of the 1st power distribution module (1) connect the second direct current input source (Vin2) anode,
The positive input terminal of the negative terminal connection inverter module (20) of 1 power distribution module (1), the negative input end connection of inverter module (20)
First direct current input source (Vin1) negative terminal and the second direct current input source (Vin2) negative terminal.
When the quantity N of power distribution module is more than 1, the anode connection first of the 1st power distribution module (1) is straight
Flow input source (Vin1) anode, the n-th power distribution module (N) negative terminal connection inverter module (20) positive input terminal,
The ends O of arbitrary k-th of power distribution module in N number of power distribution module (1,2 ... N) connect (k+1) direct current input source
(Vin(k+1)) anode, k is the integer more than or equal to 1 and less than or equal to N, appointing in N number of power distribution module (1,2 ... N)
Anticipate m-th power distribution module negative terminal connection (m+1) a power distribution module anode, m is more than or equal to 1 and to be less than N
Integer, own (N+1) a direct current input source (Vin1、Vin2…Vin(N+1)) negative input end of the negative terminal with inverter module (20)
It is connected.
Above-mentioned power distribution module uses following two schemes.
Scheme one：The power distribution module includes the first power switch tube (S1) and the second power switch tube (S2), wherein
First power switch tube (S1) emitter connect the second power switch tube (S2) collector and power distribution module negative terminal,
First power switch tube (S1) collector connection power distribution module anode, the second power switch tube (S2) emitter connect
Connect the ends O of power distribution module.
Scheme two：The power distribution module includes the first power switch tube (S1) and the first power diode (D1), wherein
First power switch tube (S1) emitter connect the first power diode (D1) cathode and power distribution module negative terminal,
One power switch tube (S1) collector connection power distribution module anode, the first power diode (D1) anode connect work(
The ends O of rate distribution module.
Above-mentioned inverter module (20) uses following three kinds of schemes.
Scheme one：The inverter module (20) includes the first inverter power switching tube (Si1), the second inverter power switching tube
(Si2), third inverter power switching tube (Si3), the 4th inverter power switching tube (Si4), filter inductance (L), filter capacitor (C) with
And load (R), wherein the first inverter power switching tube (Si1) collector connection third inverter power switching tube (Si3) current collection
The positive input terminal of pole and inverter module (20), the first inverter power switching tube (Si1) emitter connect the second inverter power open
Close pipe (Si2) collector and filter inductance (L) one end, filter inductance (L) the other end connection filter capacitor (C) one end
With one end of load (R), the other end, the third inverter power switching tube (S of the other end connection filter capacitor (C) of load (R)i3)
Emitter and the 4th inverter power switching tube (Si4) collector, the 4th inverter power switching tube (Si4) emitter connection
Second inverter power switching tube (Si2) emitter and inverter module (20) negative input end.
Scheme two：The inverter module (20) includes the first inverter power switching tube (Si1), the second inverter power switching tube
(Si2), third inverter power switching tube (Si3), the 4th inverter power switching tube (Si4), the 5th inverter power switching tube (Si5),
Six inverter power switching tube (Si6), the first filter inductance (L1), the second filter inductance (L2), third filter inductance (L3), first filter
Wave capacitance (C1), the second filter capacitor (C2), third filter capacitor (C3), first load (R1), second load (R2) and third it is negative
Carry (R3), wherein the first inverter power switching tube (Si1) collector connection third inverter power switching tube (Si3) collector,
5th inverter power switching tube (Si5) collector and inverter module (20) positive input terminal, the first inverter power switching tube
(Si1) emitter connect the second inverter power switching tube (Si2) collector and the first filter inductance (L1) one end, third is inverse
Variable power switching tube (Si3) emitter connect the 4th inverter power switching tube (Si4) collector and the second filter inductance (L2)
One end, the 5th inverter power switching tube (Si5) emitter connect the 6th inverter power switching tube (Si6) collector and
Three filter inductance (L3) one end, the second inverter power switching tube (Si2) emitter connect the 4th inverter power switching tube (Si4)
Emitter, the 6th inverter power switching tube (Si6) emitter and inverter module (20) negative input end, the first filter inductance
(L1) the other end connect the first filter capacitor (C1) one end, third filter capacitor (C3) one end, first load (R1) one
End and third load (R3) one end, the second filter inductance (L2) the other end connect the second filter capacitor (C2) one end,
One filter capacitor (C1) the other end, second load (R2) one end and first load (R1) the other end, third filter inductance
(L3) the other end connect the second filter capacitor (C2) the other end, third filter capacitor (C3) the other end, second load (R2)
The other end and third load (R3) the other end.
Scheme three：The inverter module (20) includes the first inverter power switching tube (Si1), the second inverter power switching tube
(Si2), third inverter power switching tube (Si3), the 4th inverter power switching tube (Si4), the first inverter power diode (Di1),
Two inverter power diode (Di2), the first filter inductance (L1), the second filter inductance (L2), filter capacitor (C) and load (R),
Wherein the first inverter power switching tube (Si1) collector connection third inverter power switching tube (Si3) collector and inversion mould
The positive input terminal of block (20), the first inverter power switching tube (Si1) emitter connect the first inverter power diode (Di1)
Cathode and the first filter inductance (L1) one end, third inverter power switching tube (Si3) emitter connect the second inverter power two
Pole pipe (Di2) cathode and the second filter inductance (L2) one end, the first filter inductance (L1) the other end connect filter capacitor
(C) one end of one end, load (R) and the 4th inverter power switching tube (Si4) collector, the second filter inductance (L2) it is another
One end connects the other end of filter capacitor (C), loads the other end and the second inverter power switching tube (S of (R)i2) collector,
Second inverter power switching tube (Si2) emitter connect the 4th inverter power switching tube (Si4) emitter, the first inversion work(
Rate diode (Di1) anode, the second inverter power diode (Di2) anode and inverter module (20) negative input end.
Above-mentioned (N+1) a direct current input source (Vin1、Vin2…Vin(N+1)) voltage meet following relationship：Direct current input source
(Vin1、Vin2…Vin(N+1)) in arbitrary k-th of direct current input source (Vink) voltage be all not less than the input of (k+1) a direct current
Source (Vin(k+1)) voltage, wherein k be more than or equal to 1 be less than or equal to N integer.
Advantageous effect：
(1) present invention can provide multiple dc power ports and an AC power port simultaneously, can be achieved at the same time
Power transmission between multiple independent direct current input sources and AC load or AC network and control, realize multiple inversions
The function of device has many advantages, such as that integrated level is high, power density is high, at low cost；
(2) compared to the scheme using multiple independent inverters, power switch used is not only greatly reduced in the present invention
The quantity of pipe, and reduce the quantity of the passive devices such as filter inductance, capacitance, it reduces system cost, improve power
Density；
(3) present invention can arbitrarily realize that single stage power becomes between DC input power port and ac output end mouth
It changes, conversion efficiency is high；
(4) voltage stress that switching tube is born in multi input inverter of the present invention is low, therefore may be used and opened with more excellent
The low Breakdown Voltage Power switching device with conduction property is closed, can not only reduce cost, but also the efficiency of inverter can be improved.
Description of the drawings
Fig. 1 be multiport inverter of the present invention only include a power distribution module when circuit structure；
Fig. 2 be multiport inverter of the present invention only include multiple power distribution modules when circuit structure；
Fig. 3 is the circuit structure of power distribution module；
Fig. 4 is the circuit diagram using the power distribution module of scheme one；
Fig. 5 is the circuit diagram using the power distribution module of scheme two；
Fig. 6 is the circuit diagram using the inverter module of scheme one；
Fig. 7 is the circuit diagram using the inverter module of scheme two；
Fig. 8 is the circuit diagram using the inverter module of scheme three；
Fig. 9 be multiport inverter of the present invention power distribution module using scheme one, inverter module using scheme one and
Circuit diagram when only with a power distribution module；
Figure 10 is that power distribution module is defeated first using the dual input inverter of scheme one using scheme one, inverter module
Enter the equivalent circuit diagram when power supply of source；
Figure 11 is that power distribution module is defeated second using the dual input inverter of scheme one using scheme one, inverter module
Enter the equivalent circuit diagram when power supply of source；
Figure 12 be multiport inverter of the present invention power distribution module using scheme two, inverter module using scheme one and
Circuit diagram when only with a power distribution module；
Figure 13 is that power distribution module is defeated first using the dual input inverter of scheme one using scheme two, inverter module
Enter the equivalent circuit diagram when power supply of source；
Figure 14 is that power distribution module is defeated second using the dual input inverter of scheme one using scheme two, inverter module
Enter the equivalent circuit diagram when power supply of source.
Specific implementation mode
The present invention is further described below in conjunction with the accompanying drawings.
Multiport inverter of the present invention is by N number of power distribution module (1,2 ... N), (N+1) a direct current input source (Vin1、
Vin2…Vin(N+1)) and inverter module (20) constitute, wherein N is integer equal to 1 or more than 1, and power distribution module includes just
End, negative terminal and the ends O.When the number of power distribution module is 1, circuit structure such as 1 institute of attached drawing of multiport inverter of the present invention
Show, multiport inverter of the present invention includes only two direct current input source (V at this timein1、Vin2), it is equivalent to dual input inverter.When
When the number of power distribution module is more than 1, the circuit structure of multiport inverter of the present invention is as shown in Fig. 2, can be with from figure
See, which realized by the quantity of extended power distribution module.In attached drawing 1 and attached drawing 2,1,2 ... N
It is the number to power distribution module, in fact, each power distribution module has identical circuit structure, circuit
Structure is as shown in Fig. 3.
As shown in Fig. 1, when the quantity N of power distribution module is equal to 1, the 1st power distribution module (1) is just
The first direct current input source (V of end connectionin1) anode, the ends O of the 1st power distribution module (1) connect the second direct current input source
(Vin2) anode, the positive input terminal of the negative terminal connection inverter module (20) of the 1st power distribution module (1), inverter module (20)
Negative input end connect the first direct current input source (Vin1) negative terminal and the second direct current input source (Vin2) negative terminal.
If attached drawing 2 is when the quantity N of power distribution module is more than 1, the anode of the 1st power distribution module (1) connects
Meet the first direct current input source (Vin1) anode, the negative terminal connection inverter module (20) of the n-th power distribution module (N)
The ends the O connection (k+1) of positive input terminal, arbitrary k-th of power distribution module in N number of power distribution module (1,2 ... N) is straight
Flow input source (Vin(k+1)) anode, k be more than or equal to 1 and less than or equal to N integer, N number of power distribution module (1,2 ...
The anode of negative terminal connection (m+1) a power distribution module of arbitrary m-th of power distribution module in N), m is more than or equal to 1
And the integer less than N, own (N+1) a direct current input source (Vin1、Vin2…Vin(N+1)) negative terminal with inverter module (20)
Negative input end is connected.
In the structure chart of attached drawing 1 and attached drawing 2, above-mentioned (N+1) a direct current input source (Vin1、Vin2…Vin(N+1)) voltage
Meet following relationship：Direct current input source (Vin1、Vin2…Vin(N+1)) in arbitrary k-th of direct current input source (Vink) voltage all
Direct current input source (V a not less than (k+1)in(k+1)) voltage, wherein k be more than or equal to 1 be less than or equal to N integer.
The specific implementation of power distribution module uses following two schemes.
Scheme one：The power distribution module includes the first power switch tube (S1) and the second power switch tube (S2), wherein
First power switch tube (S1) emitter connect the second power switch tube (S2) collector and power distribution module negative terminal,
First power switch tube (S1) collector connection power distribution module anode, the second power switch tube (S2) emitter connect
Connect the ends O of power distribution module.
Scheme two：The power distribution module includes the first power switch tube (S1) and the first power diode (D1), wherein
First power switch tube (S1) emitter connect the first power diode (D1) cathode and power distribution module negative terminal,
One power switch tube (S1) collector connection power distribution module anode, the first power diode (D1) anode connect work(
The ends O of rate distribution module.
In the present invention, the effect of inverter module (20) is to realize that direct current is input to the power conversion of exchange output, therefore,
All known inverters can be used as the inverter module (20) in the present invention.Here, only by taking classic inverter as an example, to carry
Following three kinds of schemes are provided for inverter module (20).
Scheme one is single-phase full bridge inverter circuit structure, and circuit diagram is as shown in Fig. 6.The inverter module (20) at this time
Including the first inverter power switching tube (Si1), the second inverter power switching tube (Si2), third inverter power switching tube (Si3),
Four inverter power switching tube (Si4), filter inductance (L), filter capacitor (C) and load (R), wherein the first inverter power switch
Manage (Si1) collector connection third inverter power switching tube (Si3) collector and inverter module (20) positive input terminal,
First inverter power switching tube (Si1) emitter connect the second inverter power switching tube (Si2) collector and filter inductance
(L) one end, one end of one end and load (R) of the other end connection filter capacitor (C) of filter inductance (L), loads the another of (R)
One end connects the other end, the third inverter power switching tube (S of filter capacitor (C)i3) emitter and the 4th inverter power switch
Manage (Si4) collector, the 4th inverter power switching tube (Si4) emitter connect the second inverter power switching tube (Si2) hair
The negative input end of emitter-base bandgap grading and inverter module (20).
Scheme two is three-phase full-bridge inverting circuit structure, and circuit diagram is as shown in Fig. 7.The inverter module (20) at this time
Including the first inverter power switching tube (Si1), the second inverter power switching tube (Si2), third inverter power switching tube (Si3),
Four inverter power switching tube (Si4), the 5th inverter power switching tube (Si5), the 6th inverter power switching tube (Si6), first filtering
Inductance (L1), the second filter inductance (L2), third filter inductance (L3), the first filter capacitor (C1), the second filter capacitor (C2),
Three filter capacitor (C3), first load (R1), second load (R2) and third load (R3), wherein the first inverter power switching tube
(Si1) collector connection third inverter power switching tube (Si3) collector, the 5th inverter power switching tube (Si5) current collection
The positive input terminal of pole and inverter module (20), the first inverter power switching tube (Si1) emitter connect the second inverter power open
Close pipe (Si2) collector and the first filter inductance (L1) one end, third inverter power switching tube (Si3) emitter connection the
Four inverter power switching tube (Si4) collector and the second filter inductance (L2) one end, the 5th inverter power switching tube (Si5)
Emitter connects the 6th inverter power switching tube (Si6) collector and third filter inductance (L3) one end, the second inverter power
Switching tube (Si2) emitter connect the 4th inverter power switching tube (Si4) emitter, the 6th inverter power switching tube (Si6)
Emitter and inverter module (20) negative input end, the first filter inductance (L1) the other end connect the first filter capacitor (C1)
One end, third filter capacitor (C3) one end, first load (R1) one end and third load (R3) one end, second filter
Wave inductance (L2) the other end connect the second filter capacitor (C2) one end, the first filter capacitor (C1) the other end, second load
(R2) one end and first load (R1) the other end, third filter inductance (L3) the other end connect the second filter capacitor (C2)
The other end, third filter capacitor (C3) the other end, second load (R2) the other end and third load (R3) the other end.
Scheme three is single-phase dual-buck inverter circuit structure, and circuit diagram is as shown in Fig. 8.The inverter module at this time
(20) include the first inverter power switching tube (Si1), the second inverter power switching tube (Si2), third inverter power switching tube
(Si3), the 4th inverter power switching tube (Si4), the first inverter power diode (Di1), the second inverter power diode (Di2),
One filter inductance (L1), the second filter inductance (L2), filter capacitor (C) and load (R), wherein the first inverter power switching tube
(Si1) collector connection third inverter power switching tube (Si3) collector and inverter module (20) positive input terminal, first
Inverter power switching tube (Si1) emitter connect the first inverter power diode (Di1) cathode and the first filter inductance (L1)
One end, third inverter power switching tube (Si3) emitter connect the second inverter power diode (Di2) cathode and second
Filter inductance (L2) one end, the first filter inductance (L1) the other end connection filter capacitor (C) one end, load (R) one
End and the 4th inverter power switching tube (Si4) collector, the second filter inductance (L2) other end connection filter capacitor (C)
The other end, the other end of load (R) and the second inverter power switching tube (Si2) collector, the second inverter power switching tube
(Si2) emitter connect the 4th inverter power switching tube (Si4) emitter, the first inverter power diode (Di1) anode,
Second inverter power diode (Di2) anode and inverter module (20) negative input end.
In the specific implementation, all power switch tubes are required for using the power switch with anti-paralleled diode the present invention
Device.For example, the IGBT with anti-paralleled diode may be used, or using the MOSFET with anti-paralleled diode.
The present invention program is described further with reference to specific example.
In multiport inverter of the present invention, power distribution module and inverter module (20) are relatively independent modules, two
Person is each responsible for different functions：Power distribution module determines the distribution of each direct current input source input power, inverter module (20)
Then it is responsible for the task of conventional inverter, that is, realizes conversion of the direct current to exchange.
No matter a power distribution module or multiple power distribution module are used in multiport inverter, and work is former
Reason and process are all similar.Therefore, only illustrate by taking the multiport inverter comprising a power distribution module as an example below
The operation principle of multiport inverter of the present invention.
Attached drawing 9 gives uses scheme one and inverter module (20) using a power distribution module, power distribution module
Multiport inverter circuit structure chart when using attached single-phase full bridge inverter circuit structure shown in fig. 6, multiport at this time are inverse
It is a dual input inverter to become device.
In attached drawing 9, the first direct current input source (Vin1) and the second direct current input source (Vin2) input Power Distribution be by work(
The first power switch tube (S in rate distribution module (20)1) and the second power switch tube (S2) conducting state determine.The
One power switch tube (S1) and the second power switch tube (S2) complementary conducting always.As the first power switch tube (S1) conducting, second
Power switch tube (S2) shutdown when, the equivalent circuit of dual input inverter is as shown in Fig. 10.At this time due to the second power switch
Manage (S2) shutdown, the second direct current input source (Vin2) disconnected with inverter module (20), therefore the first direct current input source (Vin1)
Individually power to inverter module (20).Similarly, as the first power switch tube (S1) turn off, the second power switch tube (S2) conducting when,
Second direct current input source (Vin2) individually power to inverter module (20), equivalent circuit is as shown in Fig. 11 at this time.
It should be further noted that due to the first power switch tube (S1) and the second power switch tube (S2) in electric current
Can two-way flow, attached dual input inverter shown in Fig. 9 is practical may be implemented two direct current input sources and AC load or
Two-way AC-DC power conversion between person's AC network.
Attached drawing 12 gives uses scheme two and inverter module (20) using a power distribution module, power distribution module
Multiport inverter circuit structure chart when using attached single-phase full bridge inverter circuit structure shown in fig. 6, multiport at this time are inverse
It is also a dual input inverter to become device.
In attached drawing 12, the first direct current input source (Vin1) and the second direct current input source (Vin2) input Power Distribution be by work(
The first power switch tube (S in rate distribution module1) conducting state determine.As the first power switch tube (S1) conducting when,
Due to the first direct current input source (Vin1) voltage be higher than the second direct current input source (Vin2) voltage, the first power diode will be by
It blocks, at this time only the first direct current input source (Vin1) to inverter module (20) provide power, equivalent circuit such as attached drawing 13 at this time
It is shown.As the first power switch tube (S1) shutdown when, the first power diode (D1) conducting, the second direct current input source (V at this timein2)
Power individually is provided to inverter module (20), equivalent circuit is as shown in Fig. 14.
The above is only a preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of multiport inverter, it is characterised in that：The multiport inverter is by N number of power distribution module (1,2 ...
N), (N+1) a direct current input source (Vin1、Vin2…Vin(N+1)) and inverter module (20) composition, wherein N is equal to 1 or more than 1
Integer, power distribution module includes anode, negative terminal and the ends O；
When N is equal to 1, the anode of the 1st power distribution module (1) connects the first direct current input source (Vin1) anode,
The ends O of 1 power distribution module (1) connect the second direct current input source (Vin2) anode, the 1st power distribution module (1) it is negative
The negative input end of the positive input terminal of end connection inverter module (20), inverter module (20) connects the first direct current input source (Vin1)
Negative terminal and the second direct current input source (Vin2) negative terminal；
When N is more than 1, the anode of the 1st power distribution module (1) connects the first direct current input source (Vin1) anode, institute
State the positive input terminal of the negative terminal connection inverter module (20) of n-th power distribution module (N), N number of power distribution module (1,
2 ... N) in arbitrary k-th of power distribution module the ends O connection (k+1) direct current input source (Vin(k+1)) anode, k is
Integer more than or equal to 1 and less than or equal to N, arbitrary m-th of power distribution module in N number of power distribution module (1,2 ... N)
Negative terminal connection (m+1) a power distribution module anode, m is the integer more than or equal to 1 and less than N, and it is a straight to own (N+1)
Flow input source (Vin1、Vin2…Vin(N+1)) negative terminal be connected with the negative input end of inverter module (20)；
The power distribution module is any one in following two realization methods：
(1) power distribution module is by the first power switch tube (S1) and the second power switch tube (S2) composition, wherein the first work(
Rate switching tube (S1) emitter connect the second power switch tube (S2) collector and power distribution module negative terminal, the first work(
Rate switching tube (S1) collector connection power distribution module anode, the second power switch tube (S2) emitter connect power
The ends O of distribution module；
(2) power distribution module is by the first power switch tube (S1) and the first power diode (D1) composition, wherein the first work(
Rate switching tube (S1) emitter connect the first power diode (D1) cathode and power distribution module negative terminal, the first power
Switching tube (S1) collector connection power distribution module anode, the first power diode (D1) anode connect power distribution
The ends O of module.
2. a kind of a kind of multiport inverter according to claim 1, it is characterised in that：The inverter module (20) includes
First inverter power switching tube (Si1), the second inverter power switching tube (Si2), third inverter power switching tube (Si3), it is the 4th inverse
Variable power switching tube (Si4), filter inductance (L), filter capacitor (C) and load (R)；
The first inverter power switching tube (Si1) collector connection third inverter power switching tube (Si3) collector and
The positive input terminal of inverter module (20), the first inverter power switching tube (Si1) emitter connect the second inverter power switching tube
(Si2) collector and filter inductance (L) one end, one end of the other end connection filter capacitor (C) of filter inductance (L) and negative
Carry the one end of (R), the other end, the third inverter power switching tube (S of the other end connection filter capacitor (C) of load (R)i3) hair
Emitter-base bandgap grading and the 4th inverter power switching tube (Si4) collector, the 4th inverter power switching tube (Si4) emitter connection second
Inverter power switching tube (Si2) emitter and inverter module (20) negative input end.
3. a kind of a kind of multiport inverter according to claim 1, it is characterised in that：The inverter module (20) includes
First inverter power switching tube (Si1), the second inverter power switching tube (Si2), third inverter power switching tube (Si3), it is the 4th inverse
Variable power switching tube (Si4), the 5th inverter power switching tube (Si5), the 6th inverter power switching tube (Si6), the first filter inductance
(L1), the second filter inductance (L2), third filter inductance (L3), the first filter capacitor (C1), the second filter capacitor (C2), third filter
Wave capacitance (C3), first load (R1), second load (R2) and third load (R3)；
The first inverter power switching tube (Si1) collector connection third inverter power switching tube (Si3) collector, the 5th
Inverter power switching tube (Si5) collector and inverter module (20) positive input terminal, the first inverter power switching tube (Si1)
Emitter connect the second inverter power switching tube (Si2) collector and the first filter inductance (L1) one end, third inversion work(
Rate switching tube (Si3) emitter connect the 4th inverter power switching tube (Si4) collector and the second filter inductance (L2) one
End, the 5th inverter power switching tube (Si5) emitter connect the 6th inverter power switching tube (Si6) collector and third filter
Wave inductance (L3) one end, the second inverter power switching tube (Si2) emitter connect the 4th inverter power switching tube (Si4) hair
Emitter-base bandgap grading, the 6th inverter power switching tube (Si6) emitter and inverter module (20) negative input end, the first filter inductance (L1)
The other end connect the first filter capacitor (C1) one end, third filter capacitor (C3) one end, first load (R1) one end with
And third loads (R3) one end, the second filter inductance (L2) the other end connect the second filter capacitor (C2) one end, first filter
Wave capacitance (C1) the other end, second load (R2) one end and first load (R1) the other end, third filter inductance (L3)
The other end connects the second filter capacitor (C2) the other end, third filter capacitor (C3) the other end, second load (R2) it is another
End and third load (R3) the other end.
4. a kind of a kind of multiport inverter according to claim 1, it is characterised in that：The inverter module (20) includes
First inverter power switching tube (Si1), the second inverter power switching tube (Si2), third inverter power switching tube (Si3), it is the 4th inverse
Variable power switching tube (Si4), the first inverter power diode (Di1), the second inverter power diode (Di2), the first filter inductance
(L1), the second filter inductance (L2), filter capacitor (C) and load (R)；
The first inverter power switching tube (Si1) collector connection third inverter power switching tube (Si3) collector and inverse
Become the positive input terminal of module (20), the first inverter power switching tube (Si1) emitter connect the first inverter power diode
(Di1) cathode and the first filter inductance (L1) one end, third inverter power switching tube (Si3) emitter connect the second inversion
Power diode (Di2) cathode and the second filter inductance (L2) one end, the first filter inductance (L1) the other end connection filtering
One end of capacitance (C), the one end for loading (R) and the 4th inverter power switching tube (Si4) collector, the second filter inductance (L2)
The other end connection filter capacitor (C) the other end, load (R) the other end and the second inverter power switching tube (Si2) current collection
Pole, the second inverter power switching tube (Si2) emitter connect the 4th inverter power switching tube (Si4) emitter, the first inversion
Power diode (Di1) anode, the second inverter power diode (Di2) anode and inverter module (20) negative input end.
5. a kind of multiport inverter according to claim 1, it is characterised in that：(N+1) a direct current input source
(Vin1、Vin2…Vin(N+1)) in arbitrary k-th of direct current input source (Vink) voltage be all not less than the input of (k+1) a direct current
Source (Vin(k+1)) voltage, wherein k be more than or equal to 1 be less than or equal to N integer.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105553316A (en) * | 2016-01-26 | 2016-05-04 | 南京航空航天大学 | Dual-power channel three-phase AC/DC converter |
| CN105529948B (en) * | 2016-01-29 | 2019-02-26 | 南京航空航天大学 | Dual input three-phase inverter |
| CN106787923A (en) * | 2017-02-13 | 2017-05-31 | 南京航空航天大学 | The two-way multiphase AC/DC convertor in three ports |
| CN110299862B (en) * | 2019-07-26 | 2020-11-10 | 浙江大学 | Three-phase non-isolated bidirectional DC/AC multiport converter capable of expanding number of direct-current ports |
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| WO2015051161A1 (en) * | 2013-10-03 | 2015-04-09 | Enphase Energy, Inc. | Method and apparatus for independent control of multiple power converter sources |
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| CN105099249A (en) * | 2015-09-21 | 2015-11-25 | 南京航空航天大学 | High-reliability double-input inverter |
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| JPH0880062A (en) * | 1994-08-31 | 1996-03-22 | Fuji Electric Co Ltd | Three-phase cycloconverter circuit |
| WO2015051161A1 (en) * | 2013-10-03 | 2015-04-09 | Enphase Energy, Inc. | Method and apparatus for independent control of multiple power converter sources |
| CN104600750A (en) * | 2015-02-13 | 2015-05-06 | 河海大学 | Multi-input full-bridge grid-connected inverter |
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