CN206250999U - Many level export full-bridge inverter - Google Patents
Many level export full-bridge inverter Download PDFInfo
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- CN206250999U CN206250999U CN201621207371.8U CN201621207371U CN206250999U CN 206250999 U CN206250999 U CN 206250999U CN 201621207371 U CN201621207371 U CN 201621207371U CN 206250999 U CN206250999 U CN 206250999U
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Abstract
The utility model discloses a kind of many level output full-bridge inverters, include many level and produce circuits, full bridge inverter, produce circuit to produce multiple level to export by many level, after realize that inversion is exported by full bridge inverter.The many level output full-bridge inverters of the utility model realize many level output of inverter, compared with conventional half-bridge inverter, reduce the stress of switching device, reduce total harmonic distortion of inverter output, increased the service life of inverter.Control program is simple, it is easy to accomplish, reliability is high.
Description
Technical field：
The utility model is related to a kind of many level output full-bridge inverters, the inverter in category electrical energy changer.
Background technology：
With the development of Power Electronic Technique, inverter has obtained extensive research and application, but is needing high frequency high
In the industrial occasions of pressure, what high-frequency inverter was used is still square wave output, and its output level only has+UWith-UBinary states level, and
Inversion topological only has two kinds of half-bridge and full-bridge.Although square wave inversion output control scheme is simple and easy to apply, switching loss is higher,
Conversion efficiency is low, and total harmonic distortion is very high, and the voltage stress that power triple-pole switch pipe bears is very big, causes power triple-pole switch
Pipe is easy to damage.Although semi-bridge inversion equipment cost is high without full-bridge, semi-bridge inversion topology output voltage only has full-bridge
The half of inversion topological, and full-bridge inverting topology two power triple-pole switch pipes much more topological than semi-bridge inversion are high in high frequency
In the industrial applications of pressure, this will greatly increase cost.Five-electrical level inverter is to be suggested in recent years and numerous studies
New inversion topological.Compared with traditional full-bridge or semi-bridge inversion topology, five-electrical level inverter has the polymorphic level of output, turns
Change efficiency higher, total harmonic distortion is smaller, when output is compared with low state level, it is smaller etc. that power triple-pole switch pipe bears voltage stress
Advantage.Five-electrical level inverter provides a kind of approach to realize high frequency output and the output of many level simultaneously, with research very high
Value and wide its development.But it has the following disadvantages：Five state level can only be exported, it is impossible to apply require it is total humorous
The lower occasion of ripple distortion；Conventional diode clamp bit-type five-electrical level inverter needs diode pressure-resistant very high, device volume compared with
Greatly；Need more power switch transistor to realize the conversion of level, device cost is larger.Additionally, most of five level is inverse
Becoming device can only all be applicable the situation of purely resistive load, and applied environment is narrow.
Utility model content：
The utility model provides that a kind of to retain the total harmonic distortion higher and relatively low of five-electrical level inverter conversion efficiency excellent
Many level output full-bridge inverter of point.
The utility model is adopted the following technical scheme that：A kind of many level output full-bridge inverters include external power supply, more electricity
Show no increases in output raw circuit and full bridge inverter, many level produce circuits include the first power diode, the second power diode,
3rd power diode, the 4th power diode, the first charge and discharge capacitance, the second charge and discharge capacitance, the first power triple-pole switch
Pipe, the full bridge inverter includes the second power triple-pole switch pipe, the 3rd power triple-pole switch pipe, the 4th power triple-pole switch
Pipe, the 5th power triple-pole switch pipe；The anode of first power diode connects with anode input inductance one end of external power supply
Connect, the drain electrode of the negative electrode of the first power diode and the first power triple-pole switch pipe is connected to the anode of the first charge and discharge capacitance；
The anode of the second power diode is connected with the drain electrode of the first power triple-pole switch pipe；The anode and first of the 3rd power diode
The negative terminal connection of charge and discharge capacitance, the negative electrode of the 3rd power diode is connected with the source electrode of the first power triple-pole switch pipe；Second
The anode of the negative terminal of charge and discharge capacitance and the 4th power diode, the source electrode with the first power triple-pole switch pipe is connected；4th work(
The negative electrode of rate diode is connected with the negative terminal of external power supply；The negative electrode of the second power diode, with the second power triple-pole switch pipe
Drain electrode and the 5th power triple-pole switch pipe drain electrode connect；The anode of the 3rd power diode, with the 3rd power triple-pole switch
The source electrode connection of the source electrode of pipe and the 4th power triple-pole switch pipe；The source electrode of the second power triple-pole switch pipe and the pole of the 3rd power three
Switching tube drain electrode connection, the tie point as output voltage one end；The drain electrode of four power triple-pole switch pipes and the 5th power
Triple-pole switch pipe source electrode connection, the tie point as output voltage the other end.
Preferably, the external power supply also with input inductance, electric capacity, input inductance, after capacitances in series withExternal power supplyAnd Connection.
The utility model has the advantages that：
（1）High conversion efficiency, energy saving；
（2）Total harmonic distortion is very low, improves inverter service life, reduces maintenance cost；
（3）Except the output of five level, it is possible to achieve more polymorphic level output, such as seven level, nine level, 11 level are defeated
Go out etc., adapt to different demands of the different occasions to total harmonic distortion；
（4）Control program is simple, it is easy to accomplish, with reliability higher.
Brief description of the drawings：
Fig. 1 is many level output full-bridge inverter circuit structural representations of the present utility model.
Fig. 2 a are the utility model embodiment the first operation mode schematic diagram.
Fig. 2 b are the utility model embodiment the second operation mode schematic diagram.
Fig. 2 c are the operation mode schematic diagram of the utility model embodiment the 3rd.
Fig. 2 d are the operation mode schematic diagram of the utility model embodiment the 4th.
Fig. 2 e are the operation mode schematic diagram of the utility model embodiment the 5th.
Wherein：
1 --- many level produce circuit；2 --- full bridge inverter；D 1~D 4--- the first ~ the 4th power pole pipe；Q 1~Q 5--- the first ~ the 5th power triple-pole switch pipe；C 1、C 2--- first, second charge and discharge capacitance；L--- input inductance；C——
Input capacitance；U--- external power supply；U o--- inverter output voltage.
Specific embodiment：
As shown in figure 1, many level output full-bridge inverters of the utility model include external power supplyUi, many level produce circuits
（1）With full bridge inverter 2.External power supplyUiAlso with input inductanceL, electric capacityAfter C, input inductance L, electric capacity C series connection withIt is external
Power supplyUi is in parallel.Many level generation circuits 1 include the first power diodeD 1 , the second power diodeD 2 , the 3rd power diodeD 3 , the 4th power diodeD 4 , the first charge and discharge capacitanceC 1 , the second charge and discharge capacitanceC 2 , the first power triple-pole switch pipeQ 1 , it is described
Full bridge inverter 2 includes the second power triple-pole switch pipeQ 2 , the 3rd power triple-pole switch pipeQ 3 , the 4th power triple-pole switch pipeQ 4 , the 5th power triple-pole switch pipeQ 5 。
First power diodeD 1 Anode be connected with input inductance one end of external power supply, the first power diodeD 1 's
Negative electrode and the first power triple-pole switch pipeQ 1 Drain electrode, be connected to the first charge and discharge capacitanceC 1 Anode；Second power diodeD 2
Anode and the first power triple-pole switch pipeQ 1 Drain electrode connection；3rd power diodeD 3 Anode and the first charge and discharge capacitanceC 1 Negative terminal connection, the 3rd power diodeD 3 Negative electrode and the first power triple-pole switch pipeQ 1 Source electrode connection；Second discharge and recharge
Electric capacityC 2 Negative terminal and the 4th power diodeD 4 Anode, with the first power triple-pole switch pipeQ 1 Source electrode connection；4th power
DiodeD 4 Negative electrode and external power supplyUNegative terminal connection；Second power diodeD 2 Negative electrode, with the second power triple-pole switch
PipeQ 2 Drain electrode and the 5th power triple-pole switch pipeQ 5 Drain electrode connection；3rd power diodeD 3 Anode, with the 3rd power three
Pole switching tubeQ 3 Source electrode and the 4th power triple-pole switch pipeQ 4 Source electrode connection；Second power triple-pole switch pipeQ 2 Source electrode with
3rd power triple-pole switch pipeQ 3 Drain electrode connection, the tie point as output voltage one end；Four power triple-pole switch pipesQ 4 's
Drain electrode and the 5th power triple-pole switch pipeQ 5 Source electrode connection, the tie point as output voltage the other end.
Operation principle of the present utility model is：During positive half cycle, when output level state is 0, the first power triple-pole switch pipeQ 1
Conducting, the second power triple-pole switch pipeQ 2 , the 3rd power triple-pole switch pipeQ 3 , the 4th power triple-pole switch pipeQ 4 With the 5th power
Triple-pole switch pipeQ 5 Cut-off；Output level state for+ UWhen, the first power triple-pole switch pipeQ 1 , the 3rd power triple-pole switch pipeQ 3 With
5th power triple-pole switch pipeQ 5 Cut-off, the second power triple-pole switch pipeQ 2 With the 4th power triple-pole switch pipeQ 4 Conducting；Output electricity
Flat state for+ 2UWhen, the first power triple-pole switch pipeQ 1 , the second power triple-pole switch pipeQ 2 With the 4th power triple-pole switch pipeQ 4 Lead
It is logical, the 3rd power triple-pole switch pipeQ 3 With the 5th power triple-pole switch pipeQ 5 Cut-off.During negative half period, when output level state is 0, the
One power triple-pole switch pipeQ 1 Conducting, the second power triple-pole switch pipeQ 2 , the 3rd power triple-pole switch pipeQ 3 , the pole of the 4th power three
Switching tubeQ 4 With the 5th power triple-pole switch pipeQ 5 Cut-off；Output level state for- UWhen, the first power triple-pole switch pipeQ 1 , second
Power triple-pole switch pipeQ 2 With the 4th power triple-pole switch pipeQ 4 Cut-off, the 3rd power triple-pole switch pipeQ 3 With the pole of the 5th power three
Switching tubeQ 5 Conducting；Output level state for- 2UWhen, the first power triple-pole switch pipeQ 1 , the 3rd power triple-pole switch pipeQ 3 With
Five power triple-pole switch pipesQ 5 Conducting, the second power triple-pole switch pipeQ 2 With the 4th power triple-pole switch pipeQ 4 Cut-off.First charge and discharge
Electric capacityC 1 With the second charge and discharge capacitanceC 2 Charged in parallel and discharged in series alternately, coordinate full-bridge inverting state upset,
Ensure that 0 ,- U 、+ U、- 2UWith+ 2UFive level states output, in the second power diodeD 2 Negative electrode and the second power
Triple-pole switch pipeQ 2 , drain electrode directly access N number of many level again and produce circuit（1）5+2N level state can be exported.
Below with accompanying drawing 1 as main circuit structure, concrete operating principle of the present utility model and work are described with reference to accompanying drawing 2
Mode.
1. output voltage is more than zero, and now circuit includes two operation modes：
First operation mode:As shown in Fig. 2 (a), the first power triple-pole switch pipeQ 1 , the 3rd power triple-pole switch pipeQ 3 With
5th power triple-pole switch pipeQ 5 Cut-off, the second power triple-pole switch pipeQ 2 With the 4th power triple-pole switch pipeQ 4 Conducting；External electricity
SourceUTo the first charge and discharge capacitanceC 1 With the second charge and discharge capacitanceC 2 Carry out charged in parallel, output voltageU o For+U。
Second operation mode：As shown in Fig. 2 (b), the first power triple-pole switch pipeQ 1 , the second power triple-pole switch pipeQ 2 With
4th power triple-pole switch pipeQ 4 Conducting, the 3rd power triple-pole switch pipeQ 3 With the 5th power triple-pole switch pipeQ 5 Cut-off；First fills
Discharge capacityC 1 With the second charge and discharge capacitanceC 2 Carry out discharged in series, output voltageU o For+2U。
2. output voltage is less than zero, and now circuit includes two operation modes：
3rd operation mode：As shown in Fig. 2 (c), the first power triple-pole switch pipeQ 1 , the second power triple-pole switch pipeQ 2 With
4th power triple-pole switch pipeQ 4 Cut-off, the 3rd power triple-pole switch pipeQ 3 With the 5th power triple-pole switch pipeQ 5 Conducting；External electricity
SourceUTo the first charge and discharge capacitanceC 1 With the second charge and discharge capacitanceC 2 Carry out charged in parallel, output voltageU o For-U。
4th operation mode：As shown in Fig. 2 (d), the first power triple-pole switch pipeQ 1 , the 3rd power triple-pole switch pipeQ 3 With
5th power triple-pole switch pipeQ 5 Conducting, the second power triple-pole switch pipeQ 2 With the 4th power triple-pole switch pipeQ 4 Cut-off；First fills
Discharge capacityC 1 With the second charge and discharge capacitanceC 2 Carry out discharged in series, output voltageU o For -2U。
3. output voltage is equal to zero, and now circuit has an operation mode：
5th operation mode：As shown in Fig. 2 (e), the first power triple-pole switch pipeQ 1 Conducting, the second power triple-pole switch pipeQ 2 , the 3rd power triple-pole switch pipeQ 3 , the 4th power triple-pole switch pipeQ 4 With the 5th power triple-pole switch pipeQ 5 Cut-off；Output electricity
PressureU o It is 0.
The above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, some improvement and development can also be made on the premise of the utility model principle is not departed from, these improvement
Should be regarded as protection domain of the present utility model.
Claims (2)
- A kind of 1. many level output full-bridge inverters, including external power supply (Ui), many level produce circuits（1）With full-bridge inverting electricity Road（2）, it is characterised in that：Many level produce circuit（1）Including the first power diode（D 1 ）, the second power diode （D 2 ）, the 3rd power diode（D 3 ）, the 4th power diode（D 4 ）, the first charge and discharge capacitance（C 1 ）, the second charge and discharge capacitance （C 2 ）, the first power triple-pole switch pipe（Q 1 ）, the full bridge inverter（2）Including the second power triple-pole switch pipe（Q 2 ）, the 3rd Power triple-pole switch pipe（Q 3 ）, the 4th power triple-pole switch pipe（Q 4 ）, the 5th power triple-pole switch pipe（Q 5 ）；First power Diode（D 1 ）Anode and external power supply（Ui）Anode input inductance one end connection, the first power diode（D 1 ）Negative electrode With the first power triple-pole switch pipe（Q 1 ）Drain electrode, be connected to the first charge and discharge capacitance（C 1 ）Anode；Second power diode （D 2 ）Anode and the first power triple-pole switch pipe（Q 1 ）Drain electrode connection；3rd power diode（D 3 ）Anode filled with first Discharge capacity（C 1 ）Negative terminal connection, the 3rd power diode（D 3 ）Negative electrode and the first power triple-pole switch pipe（Q 1 ）Source electrode Connection；Second charge and discharge capacitance（C 2 ）Negative terminal and the 4th power diode（D 4 ）Anode, with the first power triple-pole switch pipe （Q 1 ）Source electrode connection；4th power diode（D 4 ）Negative electrode and external power supply（Ui）Negative terminal connection；Second power diode （D 2 ）Negative electrode, with the second power triple-pole switch pipe（Q 2 ）Drain electrode and the 5th power triple-pole switch pipe（Q 5 ）Drain electrode connection；The Three power diodes（D 3 ）Anode, with the 3rd power triple-pole switch pipe（Q 3 ）Source electrode and the 4th power triple-pole switch pipe（Q 4 ） Source electrode connection；Second power triple-pole switch pipe（Q 2 ）Source electrode and the 3rd power triple-pole switch pipe（Q 3 ）Drain electrode connection, the company Contact as output voltage one end；Four power triple-pole switch pipes（Q 4 ）Drain electrode and the 5th power triple-pole switch pipe（Q 5 ）Source Pole connect, the tie point as output voltage the other end.
- 2. many level according to claim 1 export full-bridge inverter, it is characterised in that：The external power supply（Ui）Also with Input inductance（L）, electric capacity（C）, it is input into inductance（L）, electric capacity（C）After series connection withExternal power supply（Ui）It is in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207371.8U CN206250999U (en) | 2016-11-09 | 2016-11-09 | Many level export full-bridge inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621207371.8U CN206250999U (en) | 2016-11-09 | 2016-11-09 | Many level export full-bridge inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206250999U true CN206250999U (en) | 2017-06-13 |
Family
ID=59000733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621207371.8U Expired - Fee Related CN206250999U (en) | 2016-11-09 | 2016-11-09 | Many level export full-bridge inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206250999U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452145A (en) * | 2016-11-09 | 2017-02-22 | 苏州弘鹏新能源有限公司 | Multi-level output full-bridge inverter |
| CN116707332A (en) * | 2023-06-09 | 2023-09-05 | 深圳市恒运昌真空技术有限公司 | Inverter and multi-level generation method thereof |
-
2016
- 2016-11-09 CN CN201621207371.8U patent/CN206250999U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106452145A (en) * | 2016-11-09 | 2017-02-22 | 苏州弘鹏新能源有限公司 | Multi-level output full-bridge inverter |
| CN116707332A (en) * | 2023-06-09 | 2023-09-05 | 深圳市恒运昌真空技术有限公司 | Inverter and multi-level generation method thereof |
| CN116707332B (en) * | 2023-06-09 | 2024-02-02 | 深圳市恒运昌真空技术股份有限公司 | Inverter and multi-level generation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170613 Termination date: 20171109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |