CN108306535A - Single-phase 11 electrical level inverter - Google Patents

Single-phase 11 electrical level inverter Download PDF

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Publication number
CN108306535A
CN108306535A CN201810330178.0A CN201810330178A CN108306535A CN 108306535 A CN108306535 A CN 108306535A CN 201810330178 A CN201810330178 A CN 201810330178A CN 108306535 A CN108306535 A CN 108306535A
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CN
China
Prior art keywords
power switch
switch pipe
electronic power
phase
electrical level
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Granted
Application number
CN201810330178.0A
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Chinese (zh)
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CN108306535B (en
Inventor
陈蓉
黄敏
方刚
卢进军
杨勇
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JIANGSU GOODWE POWER SUPPLY TECHNOLOGY Co Ltd
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JIANGSU GOODWE POWER SUPPLY TECHNOLOGY Co Ltd
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Publication of CN108306535A publication Critical patent/CN108306535A/en
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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/4835—Converters with outputs that each can have more than two voltages levels comprising two or more cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, and the capacitors being selectively connected in series to determine the instantaneous output voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters

Abstract

The present invention relates to a kind of single-phase 11 electrical level inverters, including electronic power switch pipe S1、S2、S3、S4、S5、And capacitance C1、C2、C3、C4.Series capacitance C between input point P and input point N1, capacitance C2, capacitance C3, electronic power switch pipe S1、Through tie point P1Capacitance C is connected to after series connection1Both ends, electronic power switch pipe S2、Through tie point N1Capacitance C is connected to after series connection3Both ends, electronic power switch pipe S3、S4、Successively through tie point P2, output point A, tie point N2Tie point P is connected to after series connection1With tie point N1Between, capacitance C4It is connected to tie point P2With tie point N2Between, electronic power switch pipe S5It is connected between input point P and output point B, electronic power switch pipeIt is connected between output point B and input point N.The present invention further increases the quantity of output voltage, reduces the cost of inverter, improves efficiency, there is good application prospect.

Description

Single-phase 11 electrical level inverter
Technical field
The present invention relates to a kind of structures and its control method of 11 electrical level inverter of New single-phase, are applied to renewable energy In source electricity generation system (such as photovoltaic generation, wind-force wind-powered electricity generation).
Background technology
Currently, regenerative resource is generated electricity by way of merging two or more grid systems, (such as photovoltaic generation, wind-power electricity generation) is widely used, and Shared proportion is increasing in global energy total supply.Inverter connects as regenerative resource and power grid or the important of load Mouthful, performance directly affects the performance of entire renewable energy system.
In renewable energy system, multi-electrical level inverter has following excellent compared with two-level inversion device Gesture：(1) voltage stress of individual devices is reduced；(2) common-mode voltage is reduced；(3) low switch and conduction loss are realized.Cause This, multi-electrical level inverter is widely used in renewable energy system.
In multi-electrical level inverter structure, the structure really applied in industrial products has cascaded H-bridges structure, midpoint pincers More level blocks such as bit-type structure and striding capacitance.Above more level blocks have the advantages that respective and deficiency.It is inverse for more level Become device, if requiring to export more voltage levels, the required clamp diode of the more level blocks of neutral-point-clamped type structure is aobvious It writes ground to increase, the capacitance in the more level of striding capacitance greatly increases, and the quantity of isolating transformer increases in cascaded H-bridges structure Add.In order to overcome the shortcomings of that above more level, a variety of more level blocks of mixed type are suggested, as how electric active diode clamper type is Flat, more level of T-type diode clamp bit-type etc..Although more level topological structures above-mentioned are realized with lesser amount of component More output-voltage levels quantity, but its structure and the more level blocks of active diode clamper type are substantially similar, performance advantage It is not obvious.Therefore, it further increases the quantity of multi-electrical level inverter output voltage for expectation and reduces multi-level inverse conversion The purpose of the component of device needs to research and develop new inverter topology.
Invention content
The object of the present invention is to provide a kind of quantity that can further increase multi-electrical level inverter output voltage, and to the greatest extent Amount reduces single-phase 11 electrical level inverter of the component of multi-electrical level inverter.
In order to achieve the above objectives, the technical solution adopted by the present invention is：
A kind of single-phase 11 electrical level inverter, including electronic power switch pipe S1, electronic power switch pipePower electronics Switching tube S2, electronic power switch pipeElectronic power switch pipe S3, electronic power switch pipeElectronic power switch pipe S4、 Electronic power switch pipeElectronic power switch pipe S5, electronic power switch pipeCapacitance C1, capacitance C2, capacitance C3And capacitance C4；Single-phase 11 electrical level inverter has by input point P and input point the N input terminal constituted and by output point A and defeated Go out the output end that point B is constituted；The input voltage of single-phase 11 electrical level inverter is Vdc；
The electronic power switch pipe S1Drain electrode be connected with the input point P, the electronic power switch pipe S1Source Pole and the electronic power switch pipeDrain electrode be connected and constitute tie point P1, the electronic power switch pipeSource electrode Constitute tie point O1, the electronic power switch pipe S2Drain electrode constitute tie point O2, the electronic power switch pipe S2Source electrode With the electronic power switch pipeDrain electrode be connected and constitute tie point N1, the electronic power switch pipeSource electrode with The input point N is connected, the capacitance C1It is connected to the input point P and the tie point O1Between, the capacitance C2Connection In the tie point O1With tie point O2Between, the capacitance C3It is connected to the tie point O2Between the input point N, institute State electronic power switch pipe S3Drain electrode and the tie point P1It is connected, the electronic power switch pipe S3Source electrode with it is described Electronic power switch pipe S4Drain electrode be connected and constitute tie point P2, the electronic power switch pipe S4Source electrode and the electricity Power electronic switching tubeDrain electrode be connected and be connected to the output point A, the electronic power switch pipeSource electrode and institute State electronic power switch pipeDrain electrode be connected and constitute tie point N2, the electronic power switch pipeSource electrode with it is described Tie point N1It is connected, the capacitance C4It is connected to the tie point P2With the tie point N2Between, the electronic power switch PipeDrain electrode be connected with the input point P, the electronic power switch pipeSource electrode be connected with the output point B, The electronic power switch pipe S5Drain electrode be connected with the output point B, the electronic power switch pipe S5Source electrode with it is described Input point N is connected.
Preferably, the electronic power switch pipe S1, the electronic power switch pipeThe electronic power switch pipe S2, the electronic power switch pipeThe electronic power switch pipe S3, the electronic power switch pipeThe electric power electricity Sub switch pipe S4, the electronic power switch pipeThe electronic power switch pipe S5, the electronic power switch pipeAdopt Use insulated gate bipolar transistor.
In above single-phase 11 electrical level inverter, the electronic power switch pipe S1Drive signal and the power electronics Switching tubeDrive signal be complementary signal, the electronic power switch pipe S2Drive signal and the electronic power switch PipeDrive signal be complementary signal, the electronic power switch pipe S3Drive signal and the electronic power switch pipe Drive signal be complementary signal, the electronic power switch pipe S4Drive signal and the electronic power switch pipeDrive Dynamic signal is complementary signal, the electronic power switch pipe S5Drive signal and the electronic power switch pipeDriving letter Number be complementary signal.
Single-phase 11 electrical level inverter has 16 state V0To V15；
State V0：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3、 The electronic power switch pipe S4Shutdown, the electronic power switch pipe S5Conducting, the output of single-phase 11 electrical level inverter Voltage VoutIt is 0；
State V1：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S5 Conducting, the electronic power switch pipe S3, the electronic power switch pipe S4Shutdown, single-phase 11 electrical level inverter it is defeated Go out voltage VoutFor Vdc/5；
State V2：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3 Shutdown, the electronic power switch pipe S4, the electronic power switch pipe S5Conducting, single-phase 11 electrical level inverter it is defeated Go out voltage VoutFor 2Vdc/5；
State V3：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S4 Shutdown, the electronic power switch pipe S3, the electronic power switch pipe S5Conducting, single-phase 11 electrical level inverter it is defeated Go out voltage VoutFor 2Vdc/5；
State V4：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S4、 The electronic power switch pipe S5Conducting, the electronic power switch pipe S3Shutdown, the output of single-phase 11 electrical level inverter Voltage VoutFor 3Vdc/5；
State V5：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3、 The electronic power switch pipe S5Conducting, the electronic power switch pipe S4Shutdown, the output of single-phase 11 electrical level inverter Voltage VoutFor 3Vdc/5；
State V6：The electronic power switch pipe S1, the electronic power switch pipe S2Shutdown, the electronic power switch Pipe S3, the electronic power switch pipe S4, the electronic power switch pipe S5Conducting, single-phase 11 electrical level inverter it is defeated Go out voltage VoutFor 4Vdc/5；
State V7：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3、 The electronic power switch pipe S4, the electronic power switch pipe S5Conducting, the output voltage of single-phase 11 electrical level inverter VoutFor Vdc；
State V8：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3、 The electronic power switch pipe S4Conducting, the electronic power switch pipe S5Shutdown, the output of single-phase 11 electrical level inverter Voltage VoutIt is 0；
State V9：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S5 Lead shutdown, the electronic power switch pipe S3, the electronic power switch pipe S4Conducting, single-phase 11 electrical level inverter Output voltage VoutFor-Vdc/5；
State V10：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3 Conducting, the electronic power switch pipe S4, the electronic power switch pipe S5Shutdown, single-phase 11 electrical level inverter it is defeated Go out voltage VoutFor -2Vdc/5；
State V11：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S4 Conducting, the electronic power switch pipe S3, the electronic power switch pipe S5Shutdown, single-phase 11 electrical level inverter it is defeated Go out voltage VoutFor -2Vdc/5；
State V12：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S4、 The electronic power switch pipe S5Shutdown, the electronic power switch pipe S3Conducting, the output of single-phase 11 electrical level inverter Voltage VoutFor -3Vdc/5；
State V13：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3、 The electronic power switch pipe S5Shutdown, the electronic power switch pipe S4Conducting, the output of single-phase 11 electrical level inverter Voltage VoutFor -3Vdc/5；
State V14：The electronic power switch pipe S1, the electronic power switch pipe S2Conducting, the electronic power switch Pipe S3, the electronic power switch pipe S4, the electronic power switch pipe S5Shutdown, single-phase 11 electrical level inverter it is defeated Go out voltage VoutFor -4Vdc/5；
State V15：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3、 The electronic power switch pipe S4Shutdown, the electronic power switch pipe S5Conducting, the output of single-phase 11 electrical level inverter Voltage VoutFor-Vdc/。
The capacitance C1Voltage control be Vdc/ 5, the capacitance C2Voltage control be 3Vdc/ 5, the capacitance C3Electricity It is voltage-controlled to be made as Vdc/ 5, the capacitance C3Voltage control be 4Vdc/5。
Since above-mentioned technical proposal is used, the present invention has following advantages compared with prior art：Topological structure of the present invention It only needs 10 electronic power switch pipes that the output of 11 level can be realized, greatly reduces the required electricity of conventional multi-electrical level inverter Power electronic switching tube quantity thus greatly reduces the cost of inverter and improves the efficiency of inverter, in development of renewable energy There is good application prospect in electric system.
Description of the drawings
Attached drawing 1 is the circuit diagram of single-phase 11 electrical level inverter of the present invention.
Attached drawing 2 is single-phase 11 electrical level inverter of the present invention in state V0Under current direction schematic diagram.
Attached drawing 3 is single-phase 11 electrical level inverter of the present invention in state V1Under current direction schematic diagram.
Attached drawing 4 is single-phase 11 electrical level inverter of the present invention in state V2Under current direction schematic diagram.
Attached drawing 5 is single-phase 11 electrical level inverter of the present invention in state V3Under current direction schematic diagram.
Attached drawing 6 is single-phase 11 electrical level inverter of the present invention in state V4Under current direction schematic diagram.
Attached drawing 7 is single-phase 11 electrical level inverter of the present invention in state V5Under current direction schematic diagram.
Attached drawing 8 is single-phase 11 electrical level inverter of the present invention in state V6Under current direction schematic diagram.
Attached drawing 9 is single-phase 11 electrical level inverter of the present invention in state V7Under current direction schematic diagram.
Attached drawing 10 is single-phase 11 electrical level inverter of the present invention in state V8Under current direction schematic diagram.
Attached drawing 11 is single-phase 11 electrical level inverter of the present invention in state V9Under current direction schematic diagram.
Attached drawing 12 is single-phase 11 electrical level inverter of the present invention in state V10Under current direction schematic diagram.
Attached drawing 13 is single-phase 11 electrical level inverter of the present invention in state V11Under current direction schematic diagram.
Attached drawing 14 is single-phase 11 electrical level inverter of the present invention in state V12Under current direction schematic diagram.
Attached drawing 15 is single-phase 11 electrical level inverter of the present invention in state V13Under current direction schematic diagram.
Attached drawing 16 is single-phase 11 electrical level inverter of the present invention in state V14Under current direction schematic diagram.
Attached drawing 17 is single-phase 11 electrical level inverter of the present invention in state V15Under current direction schematic diagram.
Specific implementation mode
The invention will be further described for embodiment shown in below in conjunction with the accompanying drawings.
Embodiment one：As shown in Fig. 1, a kind of single-phase 11 electrical level inverter, including electronic power switch pipe S1, electric power Electronic switching tubeElectronic power switch pipe S2, electronic power switch pipeElectronic power switch pipe S3, electronic power switch PipeElectronic power switch pipe S4, electronic power switch pipeElectronic power switch pipe S5, electronic power switch pipeAnd Capacitance C1, capacitance C2, capacitance C3With capacitance C4.Single-phase 11 electrical level inverter has to be made of input point P and input point N Input terminal and the output end being made of output point A and output point B.
The concrete structure of single-phase 11 electrical level inverter is：Electronic power switch pipe S1Drain electrode be connected with input point P It connects, electronic power switch pipe S1Source electrode and electronic power switch pipeDrain electrode be connected and constitute tie point P1, power electronics Switching tubeSource electrode constitute tie point O1, electronic power switch pipe S2Drain electrode constitute tie point O2, electronic power switch pipe S2 Source electrode and electronic power switch pipeDrain electrode be connected and constitute tie point N1, electronic power switch pipeSource electrode with it is defeated Access point N is connected.DC bus is by capacitance C1, capacitance C2With capacitance C3It is in series, i.e. capacitance C1It is connected to input point P and connection Point O1Between, capacitance C2It is connected to tie point O1With tie point O2Between, capacitance C3It is connected to tie point O2Between input point N. Electronic power switch pipe S3Drain electrode and tie point P1It is connected, electronic power switch pipe S3Source electrode and electronic power switch pipe S4Drain electrode be connected and constitute tie point P2, electronic power switch pipe S4Source electrode and electronic power switch pipeDrain electrode phase Connect and be connected to output point A, electronic power switch pipeSource electrode and electronic power switch pipeDrain electrode be connected and structure At tie point N2, electronic power switch pipeSource electrode and tie point N1It is connected.Capacitance C4It is connected to tie point P2And tie point N2Between.Electronic power switch pipeDrain electrode be connected with input point P, electronic power switch pipeSource electrode and output point B It is connected, electronic power switch pipe S5Drain electrode be connected with output point B, electronic power switch pipe S5Source electrode and input point N phases Connection.
The above electronic power switch pipe S1, electronic power switch pipeElectronic power switch pipe S2, electronic power switch pipe S2, electronic power switch pipe S3, electronic power switch pipeElectronic power switch pipe S4, electronic power switch pipeElectric power electricity Sub switch pipe S5, electronic power switch pipeIt is all made of insulated gate bipolar transistor (Insulated Gate Bipolar Transistor, IGBT).
In above-mentioned single-phase 11 electrical level inverter, the input voltage of input terminal is Vdc, and electronic power switch pipe S1 Drive signal and electronic power switch pipeDrive signal be complementary signal, electronic power switch pipe S2Drive signal and Electronic power switch pipeDrive signal be complementary signal, electronic power switch pipe S3Drive signal and electronic power switch PipeDrive signal be complementary signal, electronic power switch pipe S4Drive signal and electronic power switch pipeDriving letter Number be complementary signal, electronic power switch pipe S5Drive signal and electronic power switch pipeDrive signal be complementary to believe Number.
Single-phase 11 electrical level inverter has 16 state V0To V15, state and inverter output voltage such as 1 institute of table Show (using N points as reference voltage), wherein " 1 " represents the conducting of electronic power switch pipe, " 0 " represents the shutdown of electronic power switch pipe, Capacitance C1Voltage control be Vdc/ 5, capacitance C2Voltage control be 3Vdc/ 5, capacitance C3Voltage control be Vdc/ 5, capacitance C3 Voltage control be 4Vdc/5。
The relationship of table 1 inverter output voltage and inverter switching states
State S1 S2 S3 S4 S5 Output voltage Vout
V0 0 0 0 0 1 0
V1 1 1 0 0 1 Vdc/5
V2 0 0 0 1 1 2Vdc/5
V3 0 0 1 0 1 2Vdc/5
V4 1 1 0 1 1 3Vdc/5
V5 1 1 1 0 1 3Vdc/5
V6 0 0 1 1 1 4Vdc/5
V7 1 1 1 1 1 Vdc
V8 1 1 1 1 0 0
V9 0 0 1 1 0 -Vdc/5
V10 1 1 1 0 0 -2Vdc/5
V11 1 1 0 1 0 -2Vdc/5
V12 0 0 1 0 0 -3Vdc/5
V13 0 0 0 1 0 -3Vdc/5
V14 1 1 0 0 0 -4Vdc/5
V15 0 0 0 0 1 -Vdc
State V0：As shown in Fig. 2, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S3、 Electronic power switch pipe S4Shutdown, electronic power switch pipe S5Conducting, the output voltage V of single-phase 11 electrical level inverteroutIt is 0.
State V1：As shown in Fig. 3, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S5 Conducting, electronic power switch pipe S3, electronic power switch pipe S4Shutdown, the output voltage V of single-phase 11 electrical level inverteroutFor Vdc/5。
State V2：As shown in Fig. 4, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S3 Shutdown, electronic power switch pipe S4, electronic power switch pipe S5Conducting, the output voltage V of single-phase 11 electrical level inverteroutFor 2Vdc/5。
State V3：As shown in Fig. 5, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S4 Shutdown, electronic power switch pipe S3, electronic power switch pipe S5Conducting, the output voltage V of single-phase 11 electrical level inverteroutFor 2Vdc/5。
State V4：As shown in Fig. 6, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S4、 Electronic power switch pipe S5Conducting, electronic power switch pipe S3Shutdown, the output voltage V of single-phase 11 electrical level inverteroutFor 3Vdc/5。
State V5：As shown in Fig. 7, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S3、 Electronic power switch pipe S5Conducting, electronic power switch pipe S4Shutdown, the output voltage V of single-phase 11 electrical level inverteroutFor 3Vdc/5。
State V6：As shown in Fig. 8, electronic power switch pipe S1, electronic power switch pipe S2Shutdown, electronic power switch Pipe S3, electronic power switch pipe S4, electronic power switch pipe S5Conducting, the output voltage V of single-phase 11 electrical level inverteroutFor 4Vdc/5。
State V7：As shown in Fig. 9, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S3、 Electronic power switch pipe S4, electronic power switch pipe S5Conducting, the output voltage V of single-phase 11 electrical level inverteroutFor Vdc。
State V8：As shown in Fig. 10, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S3, electronic power switch pipe S4Conducting, electronic power switch pipe S5Shutdown, the output voltage V of single-phase 11 electrical level inverteroutFor 0。
State V9：As shown in Fig. 11, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S5 Lead shutdown, electronic power switch pipe S3, electronic power switch pipe S4Conducting, the output voltage V of single-phase 11 electrical level inverterout For-Vdc/5。
State V10：As shown in Fig. 12, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S3 Conducting, electronic power switch pipe S4, electronic power switch pipe S5Shutdown, the output voltage V of single-phase 11 electrical level inverteroutFor- 2Vdc/5。
State V11：As shown in Fig. 13, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S4 Conducting, electronic power switch pipe S3, electronic power switch pipe S5Shutdown, the output voltage V of single-phase 11 electrical level inverteroutFor- 2Vdc/5。
State V12：As shown in Fig. 14, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S4, electronic power switch pipe S5Shutdown, electronic power switch pipe S3Conducting, the output voltage V of single-phase 11 electrical level inverterout For -3Vdc/5。
State V13：As shown in Fig. 15, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S3, electronic power switch pipe S5Shutdown, electronic power switch pipe S4Conducting, the output voltage V of single-phase 11 electrical level inverterout For -3Vdc/5。
State V14：As shown in Fig. 16, electronic power switch pipe S1, electronic power switch pipe S2Conducting, power electronics are opened Close pipe S3, electronic power switch pipe S4, electronic power switch pipe S5Shutdown, the output voltage V of single-phase 11 electrical level inverterout For -4Vdc/5。
State V15：As shown in Fig. 17, electronic power switch pipe S1, electronic power switch pipe S2, electronic power switch pipe S3, electronic power switch pipe S4Shutdown, electronic power switch pipe S5Conducting, the output voltage V of single-phase 11 electrical level inverterout For-Vdc/。
It is (constant in component that above-mentioned single-phase 11 electrical level inverter can further increase multi-level inverse conversion output level quantity When), it greatly improves the performance of inverter and reduces the size of inverter output inductor, to further increase inverter Efficiency has good application prospect in renewable energy system.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.

Claims (5)

1. a kind of single-phase 11 electrical level inverter, it is characterised in that：Single-phase 11 electrical level inverter includes that power electronics is opened Close pipe S1, electronic power switch pipeElectronic power switch pipe S2, electronic power switch pipeElectronic power switch pipe S3, electricity Power electronic switching tubeElectronic power switch pipe S4, electronic power switch pipeElectronic power switch pipe S5, power electronics opens Guan GuanCapacitance C1, capacitance C2, capacitance C3With capacitance C4；Single-phase 11 electrical level inverter has by input point P and input The input terminal that point N is constituted and the output end being made of output point A and output point B；Single-phase 11 electrical level inverter it is defeated It is V to enter voltagedc；
The electronic power switch pipe S1Drain electrode be connected with the input point P, the electronic power switch pipe S1Source electrode with The electronic power switch pipeDrain electrode be connected and constitute tie point P1, the electronic power switch pipeSource electrode constitute Tie point O1, the electronic power switch pipe S2Drain electrode constitute tie point O2, the electronic power switch pipe S2Source electrode and institute State electronic power switch pipeDrain electrode be connected and constitute tie point N1, the electronic power switch pipeSource electrode with it is described Input point N is connected, the capacitance C1It is connected to the input point P and the tie point O1Between, the capacitance C2It is connected to institute State tie point O1With tie point O2Between, the capacitance C3It is connected to the tie point O2Between the input point N, the electricity Power electronic switching tube S3Drain electrode and the tie point P1It is connected, the electronic power switch pipe S3Source electrode and the electric power Electronic switching tube S4Drain electrode be connected and constitute tie point P2, the electronic power switch pipe S4Source electrode and the electric power electricity Sub switch pipeDrain electrode be connected and be connected to the output point A, the electronic power switch pipeSource electrode and the electricity Power electronic switching tubeDrain electrode be connected and constitute tie point N2, the electronic power switch pipeSource electrode and the connection Point N1It is connected, the capacitance C4It is connected to the tie point P2With the tie point N2Between, the electronic power switch pipe Drain electrode be connected with the input point P, the electronic power switch pipeSource electrode be connected with the output point B, it is described Electronic power switch pipe S5Drain electrode be connected with the output point B, the electronic power switch pipe S5Source electrode and the input Point N is connected.
2. single-phase 11 electrical level inverter according to claim 1, it is characterised in that：The electronic power switch pipe S1, institute State electronic power switch pipeThe electronic power switch pipe S2, the electronic power switch pipeThe electronic power switch Pipe S3, the electronic power switch pipeThe electronic power switch pipe S4, the electronic power switch pipeThe electric power Electronic switching tube S5, the electronic power switch pipeIt is all made of insulated gate bipolar transistor.
3. single-phase 11 electrical level inverter according to claim 1 or 2, it is characterised in that：The electronic power switch pipe S1 Drive signal and the electronic power switch pipeDrive signal be complementary signal, the electronic power switch pipe S2Drive Dynamic signal and the electronic power switch pipeDrive signal be complementary signal, the electronic power switch pipe S3Driving letter Number and the electronic power switch pipeDrive signal be complementary signal, the electronic power switch pipe S4Drive signal and The electronic power switch pipeDrive signal be complementary signal, the electronic power switch pipe S5Drive signal and described Electronic power switch pipeDrive signal be complementary signal.
4. single-phase 11 electrical level inverter according to claim 3, it is characterised in that：Single-phase 11 electrical level inverter With 16 state V0To V15；
State V0：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3, it is described Electronic power switch pipe S4Shutdown, the electronic power switch pipe S5Conducting, the output voltage of single-phase 11 electrical level inverter VoutIt is 0；
State V1：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S5Conducting, The electronic power switch pipe S3, the electronic power switch pipe S4Shutdown, the output voltage of single-phase 11 electrical level inverter VoutFor Vdc/5；
State V2：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3Shutdown, The electronic power switch pipe S4, the electronic power switch pipe S5Conducting, the output voltage of single-phase 11 electrical level inverter VoutFor 2Vdc/5；
State V3：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S4Shutdown, The electronic power switch pipe S3, the electronic power switch pipe S5Conducting, the output voltage of single-phase 11 electrical level inverter VoutFor 2Vdc/5；
State V4：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S4, it is described Electronic power switch pipe S5Conducting, the electronic power switch pipe S3Shutdown, the output voltage of single-phase 11 electrical level inverter VoutFor 3Vdc/5；
State V5：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3, it is described Electronic power switch pipe S5Conducting, the electronic power switch pipe S4Shutdown, the output voltage of single-phase 11 electrical level inverter VoutFor 3Vdc/5；
State V6：The electronic power switch pipe S1, the electronic power switch pipe S2Shutdown, the electronic power switch pipe S3、 The electronic power switch pipe S4, the electronic power switch pipe S5Conducting, the output voltage of single-phase 11 electrical level inverter VoutFor 4Vdc/5；
State V7：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3, it is described Electronic power switch pipe S4, the electronic power switch pipe S5Conducting, the output voltage V of single-phase 11 electrical level inverterout For Vdc；
State V8：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3, it is described Electronic power switch pipe S4Conducting, the electronic power switch pipe S5Shutdown, the output voltage of single-phase 11 electrical level inverter VoutIt is 0；
State V9：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S5Lead pass It is disconnected, the electronic power switch pipe S3, the electronic power switch pipe S4Conducting, the output of single-phase 11 electrical level inverter Voltage VoutFor-Vdc/5；
State V10：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3Conducting, The electronic power switch pipe S4, the electronic power switch pipe S5Shutdown, the output voltage of single-phase 11 electrical level inverter VoutFor -2Vdc/5；
State V11：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S4Conducting, The electronic power switch pipe S3, the electronic power switch pipe S5Shutdown, the output voltage of single-phase 11 electrical level inverter VoutFor -2Vdc/5；
State V12：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S4, it is described Electronic power switch pipe S5Shutdown, the electronic power switch pipe S3Conducting, the output voltage of single-phase 11 electrical level inverter VoutFor -3Vdc/5；
State V13：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3, it is described Electronic power switch pipe S5Shutdown, the electronic power switch pipe S4Conducting, the output voltage of single-phase 11 electrical level inverter VoutFor -3Vdc/5；
State V14：The electronic power switch pipe S1, the electronic power switch pipe S2Conducting, the electronic power switch pipe S3、 The electronic power switch pipe S4, the electronic power switch pipe S5Shutdown, the output voltage of single-phase 11 electrical level inverter VoutFor -4Vdc/5；
State V15：The electronic power switch pipe S1, the electronic power switch pipe S2, the electronic power switch pipe S3, it is described Electronic power switch pipe S4Shutdown, the electronic power switch pipe S5Conducting, the output voltage of single-phase 11 electrical level inverter VoutFor-Vdc/。
5. single-phase 11 electrical level inverter according to claim 1 or 2, it is characterised in that：The capacitance C1Voltage control For Vdc/ 5, the capacitance C2Voltage control be 3Vdc/ 5, the capacitance C3Voltage control be Vdc/ 5, the capacitance C3Electricity It is voltage-controlled to be made as 4Vdc/5。
CN201810330178.0A 2018-04-13 2018-04-13 Single-phase eleven-level inverter Active CN108306535B (en)

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