CN105262355A - Multiport inverter - Google Patents
Multiport inverter Download PDFInfo
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- CN105262355A CN105262355A CN201510626636.1A CN201510626636A CN105262355A CN 105262355 A CN105262355 A CN 105262355A CN 201510626636 A CN201510626636 A CN 201510626636A CN 105262355 A CN105262355 A CN 105262355A
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- switching tube
- inverter
- power switching
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- inverter power
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Abstract
The invention discloses a multiport inverter. The multiport inverter comprises N power distribution modules, (N+1) direct current input sources, and an inversion module, wherein N is an integer more than or equal to 1; the N power distribution modules are connected in sequence, wherein the first power distribution module is connected with positive terminals of two direct current input sources, the other power distribution modules are only connected with a positive terminal of one direct current input source, the Nth power distribution module is simultaneously connected with a positive input terminal of the inversion module, and negative terminals of all the (N+1) direct current input sources are connected with a negative input terminal of the inversion module. According to the multiport inverter, power transmission and transformation between the (N+1) independent direct current input sources and an alternating current load or a power grid can be simultaneously realized via one inversion module, the function of various inverters is realized, the power density is high, and the size cost is low; and the voltage stress of power devices in the N power distribution modules is equal to the voltage difference of the direct current input sources, and the voltage stress is low.
Description
Technical field
The present invention relates to converters technical field, particularly DC-AC transformation of electrical energy technical field.
Background technology
The inverter bidirectional energy that can realize between DC power supply and AC load or AC network transmits and conversion, has been widely used at field tools such as renewable energy power generation, intelligent grid, electric automobile, Aero-Space.
Traditional inverter only comprises a direct-flow input end mouth and an ac output end mouth, namely can only realize the power conversion between a direct current input source and an AC load or AC network.But, in renewable energy power generation, intelligent grid, energy storage constant power system, usually need multiple direct current input source to be connected with inverter.Such as: in distributed photovoltaic grid-connected system, need multiple distributed photovoltaic power to be connected with inverter; In family's light storage one electric power system, need photovoltaic to be connected with inverter with storage battery simultaneously; Multiple energy storage device is then needed to be connected with inverter in distributed energy storage system.To achieve these goals, existing solution be by each independently direct current input source be first connected to a public DC bus by DC converter, again inverter is connected with this common DC bus, thus solves the problem that multiple independently direct current input source is connected with inverter.But this solution needs to adopt extra DC converter, not only increases the cost of system, volume and weight, and add system power conversion loss, reduce system effectiveness.
Document " DongsenSun, BaomingGe, WeihuaLiang, HaithamAbu-Rub, andFangZhengPeng.AnEnergyStoredQuasi-Z-SourceCascadeMult ilevelInverter-BasedPhotovoltaicPowerGenerationSystem [J] .IEEETransactionsonIndustrialElectronics, 2015, 62 (9): 5458-5467. " propose the cascade connection type multi input inverter structure of multiple accurate Z-source inverter series connection, this inverter can realize multiple distributed photovoltaic, access while distributed energy storage storage battery, but each distributed access module needs employing one independently accurate Z source inverter circuit, used active a lot of with quantity that is passive device, have impact on the Energy Efficiency Ratio of system to a certain extent.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the invention provides a kind of multiport inverter, for solving the technical problem that inverter exists when multiple direct current input source and/or DC bus are connected with AC load or AC network.
For achieving the above object, the technical solution used in the present invention is:
Described multiport inverter is by N number of power division module (1,2 ... N), (N+1) individual direct current input source (V
in1, V
in2v
in (N+1)) and inversion module (20) form, wherein N be equal 1 or be greater than 1 integer, power division module comprise anode, negative terminal and O end.
When the quantity N of power division module equals 1, the anode of described 1st power division module (1) connects the first direct current input source (V
in1) anode, the O of the 1st power division module (1) holds connection second direct current input source (V
in2) anode, the negative terminal of the 1st power division module (1) connects the positive input terminal of inversion module (20), and the negative input end of inversion module (20) connects the first direct current input source (V
in1) negative terminal and the second direct current input source (V
in2) negative terminal.
When the quantity N of power division module is greater than 1, the anode of described 1st power division module (1) connects the first direct current input source (V
in1) anode, the negative terminal of described N number of power division module (N) connects the positive input terminal of inversion module (20), N number of power division module (1,2 ... the O of any kth power division module N) holds connection (k+1) direct current input source (V
in (k+1)) anode, k is the integer being more than or equal to 1 and being less than or equal to N, N number of power division module (1,2 ... the negative terminal of any m the power division module N) connects the anode of (m+1) individual power division module, m is the integer being more than or equal to 1 and being less than N, all (N+1) individual direct current input source (V
in1, V
in2v
in (N+1)) negative terminal be all connected with the negative input end of inversion module (20).
Above-mentioned power division module adopts following two schemes.
Scheme one: described power division module comprises the first power switch pipe (S
1) and the second power switch pipe (S
2), wherein the first power switch pipe (S
1) emitter connect the second power switch pipe (S
2) collector electrode and the negative terminal of power division module, the first power switch pipe (S
1) collector electrode connect the anode of power division module, the second power switch pipe (S
2) emitter connect the O end of power division module.
Scheme two: described power division module comprises the first power switch pipe (S
1) and the first power diode (D
1), wherein the first power switch pipe (S
1) emitter connect the first power diode (D
1) negative electrode and the negative terminal of power division module, the first power switch pipe (S
1) collector electrode connect the anode of power division module, the first power diode (D
1) anode connect the O end of power division module.
Above-mentioned inversion module (20) adopts following three kinds of schemes.
Scheme one: described inversion module (20) comprises the first inverter power switching tube (S
i1), the second inverter power switching tube (S
i2), the 3rd inverter power switching tube (S
i3), the 4th inverter power switching tube (S
i4), filter inductance (L), filter capacitor (C) and load (R), wherein the first inverter power switching tube (S
i1) collector electrode connect the 4th inverter power switching tube (S
i4) collector electrode and the positive input terminal of inversion module (20), the first inverter power switching tube (S
i1) emitter connect the second inverter power switching tube (S
i2) collector electrode and one end of filter inductance (L), the other end of filter inductance (L) connects one end of filter capacitor (C) and one end of load (R), and the other end of load (R) connects the other end, the second inverter power switching tube (S of filter capacitor (C)
i2) emitter and the 4th inverter power switching tube (S
i4) collector electrode, the 4th inverter power switching tube (S
i4) emitter connect the second inverter power switching tube (S
i2) emitter and the negative input end of inversion module (20).
Scheme two: described inversion module (20) comprises the first inverter power switching tube (S
i1), the second inverter power switching tube (S
i2), the 3rd inverter power switching tube (S
i3), the 4th inverter power switching tube (S
i4), the 5th inverter power switching tube (S
i5), the 6th inverter power switching tube (S
i6), the first filter inductance (L
1), the second filter inductance (L
2), the 3rd filter inductance (L
3), the first filter capacitor (C
1), the second filter capacitor (C
2), the 3rd filter capacitor (C
3), the first load (R
1), the second load (R
2) and the 3rd load (R
3), wherein the first inverter power switching tube (S
i1) collector electrode connect the 3rd inverter power switching tube (S
i3) collector electrode, the 5th inverter power switching tube (S
i5) collector electrode and the positive input terminal of inversion module (20), the first inverter power switching tube (S
i1) emitter connect the second inverter power switching tube (S
i2) collector electrode and the first filter inductance (L
1) one end, the 3rd inverter power switching tube (S
i3) emitter connect the 4th inverter power switching tube (S
i4) collector electrode and the second filter inductance (L
2) one end, the 5th inverter power switching tube (S
i5) emitter connect the 6th inverter power switching tube (S
i6) collector electrode and the 3rd filter inductance (L
3) one end, the second inverter power switching tube (S
i2) emitter connect the 4th inverter power switching tube (S
i4) emitter, the 6th inverter power switching tube (S
i6) emitter and the negative input end of inversion module (20), the first filter inductance (L
1) the other end connect the first filter capacitor (C
1) one end, the 3rd filter capacitor (C
3) one end, the first load (R
1) one end and the 3rd load (R
3) one end, the second filter inductance (L
2) the other end connect the second filter capacitor (C
2) one end, the first filter capacitor (C
1) the other end, the second load (R
2) one end and the first load (R
1) the other end, the 3rd filter inductance (L
3) the other end connect the second filter capacitor (C
2) the other end, the 3rd filter capacitor (C
3) the other end, the second load (R
2) the other end and the 3rd load (R
3) the other end.
Scheme three: described inversion module (20) comprises the first inverter power switching tube (S
i1), the second inverter power switching tube (S
i2), the 3rd inverter power switching tube (S
i3), the 4th inverter power switching tube (S
i4), the first inverter power diode (D
i1), the second inverter power diode (D
i2), the first filter inductance (L
1), the second filter inductance (L
2), filter capacitor (C) and load (R), wherein the first inverter power switching tube (S
i1) collector electrode connect the 3rd inverter power switching tube (S
i3) collector electrode and the positive input terminal of inversion module (20), the first inverter power switching tube (S
i1) emitter connect the first inverter power diode (D
i1) negative electrode and the first filter inductance (L
1) one end, the second inverter power switching tube (S
i2) emitter connect the second inverter power diode (D
i2) negative electrode and the second filter inductance (L
2) one end, the first filter inductance (L
1) the other end connect one end of filter capacitor (C), one end of load (R) and the 4th inverter power switching tube (S
i4) collector electrode, the second filter inductance (L
2) the other end connect the other end of filter capacitor (C), the other end of load (R) and the second inverter power switching tube (S
i2) collector electrode, the second inverter power switching tube (S
i2) emitter connect the 4th inverter power switching tube (S
i4) emitter, the first inverter power diode (D
i1) anode, the second inverter power diode (D
i2) anode and the negative input end of inversion module (20).
Above-mentioned (N+1) individual direct current input source (V
in1, V
in2v
in (N+1)) voltage meet following relation: direct current input source (V
in1, V
in2v
in (N+1)) in any kth direct current input source (V
ink) voltage be all not less than (k+1) individual direct current input source (V
in (k+1)) voltage, wherein k is more than or equal to the integer that 1 is less than or equal to N.
Beneficial effect:
(1) the present invention can provide multiple direct current power port and an AC power port simultaneously, the power delivery between multiple independently direct current input source and AC load or AC network and control can be realized simultaneously, achieve the function of multiple inverter, have that integrated level is high, power density is high, low cost and other advantages;
(2) compared to the scheme adopting multiple independently inverter, the present invention not only significantly decreases the quantity of power switch pipe used, and decreases the quantity of the passive device such as filter inductance, electric capacity, reduces system cost, improves power density;
(3) can both realize single-stage power conversion between any DC input power port of the present invention and ac output end mouth, conversion efficiency is high;
(4) voltage stress that bears of multi input inverter breaker in middle pipe of the present invention is low, therefore can adopt the low Breakdown Voltage Power switching device with more excellent switch and conduction property, not only can reduce costs, and can improve the efficiency of inverter.
Accompanying drawing explanation
Fig. 1 is the circuit structure of multiport inverter of the present invention when only comprising a power division module;
Fig. 2 is the circuit structure of multiport inverter of the present invention when only comprising multiple power division module;
Fig. 3 is the circuit structure of power division module;
Fig. 4 is the circuit diagram of the power division module of employing scheme one;
Fig. 5 is the circuit diagram of the power division module of employing scheme two;
Fig. 6 is the circuit diagram of the inversion module of employing scheme one;
Fig. 7 is the circuit diagram of the inversion module of employing scheme two;
Fig. 8 is the circuit diagram of the inversion module of employing scheme three;
Fig. 9 be multiport inverter of the present invention power division module adopt scheme one, inversion module adopt scheme one and only adopt a power division module time circuit theory diagrams;
Figure 10 is that power division module adopts scheme one, inversion module to adopt the equivalent circuit diagram of dual input inverter when the first input source is powered of scheme one;
Figure 11 is that power division module adopts scheme one, inversion module to adopt the equivalent circuit diagram of dual input inverter when the second input source is powered of scheme one;
Figure 12 be multiport inverter of the present invention power division module adopt scheme two, inversion module adopt scheme one and only adopt a power division module time circuit theory diagrams;
Figure 13 is that power division module adopts scheme two, inversion module to adopt the equivalent circuit diagram of dual input inverter when the first input source is powered of scheme one;
Figure 14 is that power division module adopts scheme two, inversion module to adopt the equivalent circuit diagram of dual input inverter when the second input source is powered of scheme one.
Embodiment
Below in conjunction with accompanying drawing, the present invention is further described.
Multiport inverter of the present invention is by N number of power division module (1,2 ... N), (N+1) individual direct current input source (V
in1, V
in2v
in (N+1)) and inversion module (20) form, wherein N be equal 1 or be greater than 1 integer, power division module comprise anode, negative terminal and O end.When the number of power division module is 1, as shown in Figure 1, now multiport inverter of the present invention only comprises two direct current input source (V to the circuit structure of multiport inverter of the present invention
in1, V
in2), be equivalent to dual input inverter.When the number of power division module is greater than 1, as shown in Figure 2, as we can see from the figure, to the circuit structure of multiport inverter of the present invention this multiport inverter realized by the quantity of extended power distribution module.In accompanying drawing 1 and accompanying drawing 2,1,2 ... N is the numbering to power division module, and in fact, each power division module has identical circuit structure, and its circuit structure as shown in Figure 3.
As shown in Figure 1, when the quantity N of power division module equals 1, the anode of described 1st power division module (1) connects the first direct current input source (V
in1) anode, the O of the 1st power division module (1) holds connection second direct current input source (V
in2) anode, the negative terminal of the 1st power division module (1) connects the positive input terminal of inversion module (20), and the negative input end of inversion module (20) connects the first direct current input source (V
in1) negative terminal and the second direct current input source (V
in2) negative terminal.
If accompanying drawing 2 is when the quantity N of power division module is greater than 1, the anode of described 1st power division module (1) connects the first direct current input source (V
in1) anode, the negative terminal of described N number of power division module (N) connects the positive input terminal of inversion module (20), N number of power division module (1,2 ... the O of any kth power division module N) holds connection (k+1) direct current input source (V
in (k+1)) anode, k is the integer being more than or equal to 1 and being less than or equal to N, N number of power division module (1,2 ... the negative terminal of any m the power division module N) connects the anode of (m+1) individual power division module, m is the integer being more than or equal to 1 and being less than N, all (N+1) individual direct current input source (V
in1, V
in2v
in (N+1)) negative terminal be all connected with the negative input end of inversion module (20).
In the structure chart of accompanying drawing 1 and accompanying drawing 2, above-mentioned (N+1) individual direct current input source (V
in1, V
in2v
in (N+1)) voltage meet following relation: direct current input source (V
in1, V
in2v
in (N+1)) in any kth direct current input source (V
ink) voltage be all not less than (k+1) individual direct current input source (V
in (k+1)) voltage, wherein k is more than or equal to the integer that 1 is less than or equal to N.
The concrete enforcement of power division module adopts following two schemes.
Scheme one: described power division module comprises the first power switch pipe (S
1) and the second power switch pipe (S
2), wherein the first power switch pipe (S
1) emitter connect the second power switch pipe (S
2) collector electrode and the negative terminal of power division module, the first power switch pipe (S
1) collector electrode connect the anode of power division module, the second power switch pipe (S
2) emitter connect the O end of power division module.
Scheme two: described power division module comprises the first power switch pipe (S
1) and the first power diode (D
1), wherein the first power switch pipe (S
1) emitter connect the first power diode (D
1) negative electrode and the negative terminal of power division module, the first power switch pipe (S
1) collector electrode connect the anode of power division module, the first power diode (D
1) anode connect the O end of power division module.
In the present invention, the effect of inversion module (20) realizes direct current to be input to the power conversion exchanging and export, and therefore, all known inverters can be used as the inversion module (20) in the present invention.At this, only for classic inverter, provide following three kinds of schemes for providing inversion module (20).
Scheme one is single-phase full bridge inverter circuit structure, and its circuit diagram as shown in Figure 6.Now described inversion module (20) comprises the first inverter power switching tube (S
i1), the second inverter power switching tube (S
i2), the 3rd inverter power switching tube (S
i3), the 4th inverter power switching tube (S
i4), filter inductance (L), filter capacitor (C) and load (R), wherein the first inverter power switching tube (S
i1) collector electrode connect the 4th inverter power switching tube (S
i4) collector electrode and the positive input terminal of inversion module (20), the first inverter power switching tube (S
i1) emitter connect the second inverter power switching tube (S
i2) collector electrode and one end of filter inductance (L), the other end of filter inductance (L) connects one end of filter capacitor (C) and one end of load (R), and the other end of load (R) connects the other end, the second inverter power switching tube (S of filter capacitor (C)
i2) emitter and the 4th inverter power switching tube (S
i4) collector electrode, the 4th inverter power switching tube (S
i4) emitter connect the second inverter power switching tube (S
i2) emitter and the negative input end of inversion module (20).
Scheme two is three-phase full-bridge inverting circuit structure, and its circuit diagram as shown in Figure 7.Now described inversion module (20) comprises the first inverter power switching tube (S
i1), the second inverter power switching tube (S
i2), the 3rd inverter power switching tube (S
i3), the 4th inverter power switching tube (S
i4), the 5th inverter power switching tube (S
i5), the 6th inverter power switching tube (S
i6), the first filter inductance (L
1), the second filter inductance (L
2), the 3rd filter inductance (L
3), the first filter capacitor (C
1), the second filter capacitor (C
2), the 3rd filter capacitor (C
3), the first load (R
1), the second load (R
2) and the 3rd load (R
3), wherein the first inverter power switching tube (S
i1) collector electrode connect the 3rd inverter power switching tube (S
i3) collector electrode, the 5th inverter power switching tube (S
i5) collector electrode and the positive input terminal of inversion module (20), the first inverter power switching tube (S
i1) emitter connect the second inverter power switching tube (S
i2) collector electrode and the first filter inductance (L
1) one end, the 3rd inverter power switching tube (S
i3) emitter connect the 4th inverter power switching tube (S
i4) collector electrode and the second filter inductance (L
2) one end, the 5th inverter power switching tube (S
i5) emitter connect the 6th inverter power switching tube (S
i6) collector electrode and the 3rd filter inductance (L
3) one end, the second inverter power switching tube (S
i2) emitter connect the 4th inverter power switching tube (S
i4) emitter, the 6th inverter power switching tube (S
i6) emitter and the negative input end of inversion module (20), the first filter inductance (L
1) the other end connect the first filter capacitor (C
1) one end, the 3rd filter capacitor (C
3) one end, the first load (R
1) one end and the 3rd load (R
3) one end, the second filter inductance (L
2) the other end connect the second filter capacitor (C
2) one end, the first filter capacitor (C
1) the other end, the second load (R
2) one end and the first load (R
1) the other end, the 3rd filter inductance (L
3) the other end connect the second filter capacitor (C
2) the other end, the 3rd filter capacitor (C
3) the other end, the second load (R
2) the other end and the 3rd load (R
3) the other end.
Scheme three is single-phase dual-buck inverter circuit structure, and its circuit diagram as shown in Figure 8.Now described inversion module (20) comprises the first inverter power switching tube (S
i1), the second inverter power switching tube (S
i2), the 3rd inverter power switching tube (S
i3), the 4th inverter power switching tube (S
i4), the first inverter power diode (D
i1), the second inverter power diode (D
i2), the first filter inductance (L
1), the second filter inductance (L
2), filter capacitor (C) and load (R), wherein the first inverter power switching tube (S
i1) collector electrode connect the 3rd inverter power switching tube (S
i3) collector electrode and the positive input terminal of inversion module (20), the first inverter power switching tube (S
i1) emitter connect the first inverter power diode (D
i1) negative electrode and the first filter inductance (L
1) one end, the second inverter power switching tube (S
i2) emitter connect the second inverter power diode (D
i2) negative electrode and the second filter inductance (L
2) one end, the first filter inductance (L
1) the other end connect one end of filter capacitor (C), one end of load (R) and the 4th inverter power switching tube (S
i4) collector electrode, the second filter inductance (L
2) the other end connect the other end of filter capacitor (C), the other end of load (R) and the second inverter power switching tube (S
i2) collector electrode, the second inverter power switching tube (S
i2) emitter connect the 4th inverter power switching tube (S
i4) emitter, the first inverter power diode (D
i1) anode, the second inverter power diode (D
i2) anode and the negative input end of inversion module (20).
In the specific implementation, all power switch pipes all need to use the device for power switching with anti-paralleled diode in the present invention.Such as, the IGBT with anti-paralleled diode can be adopted, or adopt the MOSFET with anti-paralleled diode.
Below in conjunction with concrete example, the present invention program is described further.
In multiport inverter of the present invention, power division module and inversion module (20) are relatively independent modules, both are responsible for different functions separately: power division module determines the distribution of each direct current input source input power, inversion module (20) is then responsible for the task of conventional inverter, namely realizes direct current to the conversion exchanged.
No matter have employed a power division module or multiple power division module in multiport inverter, its operation principle and process are all similar.Therefore, below only to comprise the multiport inverter of a power division module so that the operation principle of multiport inverter of the present invention to be described.
Figure 9 shows employing power division module, single-phase full bridge inverter circuit structure that power division module adopts scheme one and inversion module (20) to adopt shown in accompanying drawing 6 time multiport inverter circuit structure chart, multiport inverter is now a dual input inverter.
In accompanying drawing 9, the first direct current input source (V
in1) and the second direct current input source (V
in2) input Power Distribution be by the first power switch pipe (S in power division module (20)
1) and the second power switch pipe (S
2) conducting state to decide.First power switch pipe (S
1) and the second power switch pipe (S
2) complementary conducting all the time.As the first power switch pipe (S
1) conducting, the second power switch pipe (S
2) turn off time, the equivalent electric circuit of dual input inverter is as shown in Figure 10.Now due to the second power switch pipe (S
2) turn off, the second direct current input source (V
in2) disconnect with inversion module (20), therefore the first direct current input source (V
in1) power to inversion module (20) separately.In like manner, as the first power switch pipe (S1) shutoff, the second power switch pipe (S
2) conducting time, the second direct current input source (V
in2) separately to inversion module (20) power supply, now equivalent electric circuit as shown in Figure 11.
Need to further illustrate, due to the first power switch pipe (S1) and the second power switch pipe (S
2) in electric current can two-way flow, the two-way AC-to-DC power conversion that the dual input inverter shown in accompanying drawing 9 is actual can be realized between two direct current input source and AC load or AC network.
Multiport inverter circuit structure chart during the single-phase full bridge inverter circuit structure that accompanying drawing 12 gives employing power division module, power division module adopts scheme two and inversion module (20) to adopt shown in accompanying drawing 6, multiport inverter now is also a dual input inverter.
In accompanying drawing 12, the first direct current input source (V
in1) and the second direct current input source (V
in2) input Power Distribution be by the first power switch pipe (S in power division module
1) conducting state to decide.As the first power switch pipe (S
1) conducting time, due to the first direct current input source (V
in1) voltage higher than the second direct current input source (V
in2) voltage, the first power diode will be blocked, and now only have the first direct current input source (V
in1) providing power to inversion module (20), equivalent electric circuit is now as shown in Figure 13.As the first power switch pipe (S
1) turn off time, the first power diode (D
1) conducting, now the second direct current input source (V
in2) providing power to inversion module (20) separately, equivalent electric circuit is as shown in Figure 14.
The above is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. a multiport inverter, is characterized in that: described multiport inverter is by N number of power division module (1,2 ... N), (N+1) individual direct current input source (V
in1, V
in2v
in (N+1)) and inversion module (20) form, wherein N be equal 1 or be greater than 1 integer, power division module comprise anode, negative terminal and O end;
When N equals 1, the anode of described 1st power division module (1) connects the first direct current input source (V
in1) anode, the O of the 1st power division module (1) holds connection second direct current input source (V
in2) anode, the negative terminal of the 1st power division module (1) connects the positive input terminal of inversion module (20), and the negative input end of inversion module (20) connects the first direct current input source (V
in1) negative terminal and the second direct current input source (V
in2) negative terminal;
When N is greater than 1, the anode of described 1st power division module (1) connects the first direct current input source (V
in1) anode, the negative terminal of described N number of power division module (N) connects the positive input terminal of inversion module (20), N number of power division module (1,2 ... the O of any kth power division module N) holds connection (k+1) direct current input source (V
in (k+1)) anode, k is the integer being more than or equal to 1 and being less than or equal to N, N number of power division module (1,2 ... the negative terminal of any m the power division module N) connects the anode of (m+1) individual power division module, m is the integer being more than or equal to 1 and being less than N, all (N+1) individual direct current input source (V
in1, V
in2v
in (N+1)) negative terminal be all connected with the negative input end of inversion module (20).
2. an a kind of multiport inverter according to claim 1, is characterized in that: described power division module comprises the first power switch pipe (S
1) and the second power switch pipe (S
2), wherein the first power switch pipe (S
1) emitter connect the second power switch pipe (S
2) collector electrode and the negative terminal of power division module, the first power switch pipe (S
1) collector electrode connect the anode of power division module, the second power switch pipe (S
2) emitter connect the O end of power division module.
3. an a kind of multiport inverter according to claim 1, is characterized in that: described power division module comprises the first power switch pipe (S
1) and the first power diode (D
1), wherein the first power switch pipe (S
1) emitter connect the first power diode (D
1) negative electrode and the negative terminal of power division module, the first power switch pipe (S
1) collector electrode connect the anode of power division module, the first power diode (D
1) anode connect the O end of power division module.
4. an a kind of multiport inverter according to claim 1, is characterized in that: described inversion module (20) comprises the first inverter power switching tube (S
i1), the second inverter power switching tube (S
i2), the 3rd inverter power switching tube (S
i3), the 4th inverter power switching tube (S
i4), filter inductance (L), filter capacitor (C) and load (R);
Described first inverter power switching tube (S
i1) collector electrode connect the 4th inverter power switching tube (S
i4) collector electrode and the positive input terminal of inversion module (20), the first inverter power switching tube (S
i1) emitter connect the second inverter power switching tube (S
i2) collector electrode and one end of filter inductance (L), the other end of filter inductance (L) connects one end of filter capacitor (C) and one end of load (R), and the other end of load (R) connects the other end, the second inverter power switching tube (S of filter capacitor (C)
i2) emitter and the 4th inverter power switching tube (S
i4) collector electrode, the 4th inverter power switching tube (S
i4) emitter connect the second inverter power switching tube (S
i2) emitter and the negative input end of inversion module (20).
5. an a kind of multiport inverter according to claim 1, is characterized in that: described inversion module (20) comprises the first inverter power switching tube (S
i1), the second inverter power switching tube (S
i2), the 3rd inverter power switching tube (S
i3), the 4th inverter power switching tube (S
i4), the 5th inverter power switching tube (S
i5), the 6th inverter power switching tube (S
i6), the first filter inductance (L
1), the second filter inductance (L
2), the 3rd filter inductance (L
3), the first filter capacitor (C
1), the second filter capacitor (C
2), the 3rd filter capacitor (C
3), the first load (R
1), the second load (R
2) and the 3rd load (R
3);
Described first inverter power switching tube (S
i1) collector electrode connect the 3rd inverter power switching tube (S
i3) collector electrode, the 5th inverter power switching tube (S
i5) collector electrode and the positive input terminal of inversion module (20), the first inverter power switching tube (S
i1) emitter connect the second inverter power switching tube (S
i2) collector electrode and the first filter inductance (L
1) one end, the 3rd inverter power switching tube (S
i3) emitter connect the 4th inverter power switching tube (S
i4) collector electrode and the second filter inductance (L
2) one end, the 5th inverter power switching tube (S
i5) emitter connect the 6th inverter power switching tube (S
i6) collector electrode and the 3rd filter inductance (L
3) one end, the second inverter power switching tube (S
i2) emitter connect the 4th inverter power switching tube (S
i4) emitter, the 6th inverter power switching tube (S
i6) emitter and the negative input end of inversion module (20), the first filter inductance (L
1) the other end connect the first filter capacitor (C
1) one end, the 3rd filter capacitor (C
3) one end, the first load (R
1) one end and the 3rd load (R
3) one end, the second filter inductance (L
2) the other end connect the second filter capacitor (C
2) one end, the first filter capacitor (C
1) the other end, the second load (R
2) one end and the first load (R
1) the other end, the 3rd filter inductance (L
3) the other end connect the second filter capacitor (C
2) the other end, the 3rd filter capacitor (C
3) the other end, the second load (R
2) the other end and the 3rd load (R
3) the other end.
6. an a kind of multiport inverter according to claim 1, is characterized in that: described inversion module (20) comprises the first inverter power switching tube (S
i1), the second inverter power switching tube (S
i2), the 3rd inverter power switching tube (S
i3), the 4th inverter power switching tube (S
i4), the first inverter power diode (D
i1), the second inverter power diode (D
i2), the first filter inductance (L
1), the second filter inductance (L
2), filter capacitor (C) and load (R);
Described first inverter power switching tube (S
i1) collector electrode connect the 3rd inverter power switching tube (S
i3) collector electrode and the positive input terminal of inversion module (20), the first inverter power switching tube (S
i1) emitter connect the first inverter power diode (D
i1) negative electrode and the first filter inductance (L
1) one end, the second inverter power switching tube (S
i2) emitter connect the second inverter power diode (D
i2) negative electrode and the second filter inductance (L
2) one end, the first filter inductance (L
1) the other end connect one end of filter capacitor (C), one end of load (R) and the 4th inverter power switching tube (S
i4) collector electrode, the second filter inductance (L
2) the other end connect the other end of filter capacitor (C), the other end of load (R) and the second inverter power switching tube (S
i2) collector electrode, the second inverter power switching tube (S
i2) emitter connect the 4th inverter power switching tube (S
i4) emitter, the first inverter power diode (D
i1) anode, the second inverter power diode (D
i2) anode and the negative input end of inversion module (20).
7. a kind of multiport inverter according to claim 1, is characterized in that: described (N+1) individual direct current input source (V
in1, V
in2v
in (N+1)) in any kth direct current input source (V
ink) voltage be all not less than (k+1) individual direct current input source (V
in (k+1)) voltage, wherein k is more than or equal to the integer that 1 is less than or equal to N.
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|---|---|---|---|
| CN201510626636.1A CN105262355B (en) | 2015-09-28 | 2015-09-28 | A kind of multiport inverter |
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| CN105262355B CN105262355B (en) | 2018-08-14 |
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| CN105529948A (en) * | 2016-01-29 | 2016-04-27 | 南京航空航天大学 | Double-input three-phase inverter |
| CN105553316A (en) * | 2016-01-26 | 2016-05-04 | 南京航空航天大学 | Dual-power channel three-phase AC/DC converter |
| 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 |
| CN110299862A (en) * | 2019-07-26 | 2019-10-01 | 浙江大学 | A kind of three-phase non-isolation type bidirectional DC/AC multi-port current transformer for expanding DC port number |
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