CN205901623U - Many windings are just swashing parallelly connected single -stage dc -to -ac converter of output - Google Patents
Many windings are just swashing parallelly connected single -stage dc -to -ac converter of output Download PDFInfo
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- CN205901623U CN205901623U CN201620554136.1U CN201620554136U CN205901623U CN 205901623 U CN205901623 U CN 205901623U CN 201620554136 U CN201620554136 U CN 201620554136U CN 205901623 U CN205901623 U CN 205901623U
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Abstract
The utility model provides an independent type dc -to -ac converter of single -stage, is the many windings are just swashing parallelly connected single -stage dc -to -ac converter of output operating circuit, including two primary side winding, four positive violent change parallel operations according to the different winding work of state messenger of switch tube work, are constituteed to two vice limit windings. Utilize this single -degree -of -freedom of transformer transformation ratio, increase winding input all the way for the four -quadrant operation of dc -to -ac converter is realized to the exportable bipolarity voltage of circuit unit, solves the magnetic reset problem simultaneously. At each quadrant during operation, all be equivalent to a single -phase positive violent change parallel operation, it is few that the device is flowed through to the operating current, and the circuit is high -efficient, reliable. New circuit structure provides the support for output is idle. The thinking of by stages work is further developing of the parallelly connected single -stage dc -to -ac converter half -period mode of output that has now, and its control method is communicating, and the initial analysis is thought feasiblely. This problem will specifically be studied as to this.
Description
Technical field
The present invention designs a kind of Multiple coil normal shock output-parallel single-stage inverter, belongs to the inverter in electrical energy changer.
Background technology
With the development of Power Electronic Technique, inverter has obtained extensive research and has applied.In recent years, single-stage isolated is inverse
Become device and be increasingly becoming one of study hotspot of inversion transformation technique.Compared with traditional inverter circuit, single-stage isolated inverter only with
One-stage transfor-mation can achieve that the repertoire of two-layer configuration includes dc/ac inversion, Voltage Cortrol and electrical isolation, and circuit structure obtains
Arrive very big simplification, the switching device number simultaneously working is few, and the power density of system, efficiency and reliability have all carried
Height, has excellent static and dynamic c haracteristics.But single-stage isolated inverter remains following shortcoming: forward converter is led to
Magnetic reset problem, affects the simple for structure of circuit and stablizes；Circuit cannot export idle, that is, with output voltage, output current
And self reliance type inverter, there is idle fan-out capability in the horizontal, coordinate system of vertical coordinate it is impossible to work and second, four-quadrant
Grid type inverter, is both needed to four quadrant running.
Content of the invention
1st, goal of the invention: it is an object of the invention to proposing a kind of new Multiple coil normal shock output-parallel single-stage inversion
Device, the advantage retaining normal shock output-parallel single-stage inverter, solve existing deficiency simultaneously.
2nd, technical scheme: in order to solve above-mentioned technical problem, the Multiple coil normal shock output-parallel single-stage inversion of the present invention
Device, including the input of two-way primary side winding, two-way secondary Parallel opertation is it is characterised in that than existing output-parallel single-stage inversion
Device increased a road winding input, makes circuit unit can export negative voltage to rear class.First via winding w1Same Name of Ends with external
Power supply uiPositive pole connection, different name end and the 5th power triple-pole switch pipe s5Drain electrode be connected, the 5th power triple-pole switch pipe s5Source
Pole and external power supply uiIt is connected；Second road winding w2Different name end and external power supply uiPositive pole connection, Same Name of Ends and the 6th power three pole
Switching tube s6Drain electrode be connected, the 6th power triple-pole switch pipe s6Source electrode and external power supply uiIt is connected；3rd road winding w3Same
Name end and the first power triple-pole switch pipe s1Drain electrode be connected, the first power triple-pole switch pipe s1Source electrode and the first afterflow two pole
Pipe d1Anode be connected, the first fly-wheel diode d1Negative electrode and the second fly-wheel diode d2Negative electrode be connected, be connected to output filter
One end of ripple inductance l, the second fly-wheel diode d2Anode and the second power triple-pole switch pipe s2Source electrode be connected, the second power
Triple-pole switch pipe s2Drain electrode be connected to the 3rd road winding w3Different name end, be connected with one end of output filter capacitor c；4th tunnel
Winding w4Different name end and the 3rd power triple-pole switch pipe s3Source electrode be connected, the 3rd power triple-pole switch pipe s3Drain electrode and the
Three fly-wheel diode d3Negative electrode be connected, the 3rd fly-wheel diode d3Anode and the 4th fly-wheel diode d4Anode be connected, even
It is connected to one end of output inductor l, the 4th fly-wheel diode d4Negative electrode and the second power triple-pole switch pipe s2Drain electrode phase
Even, the 4th power triple-pole switch pipe s4Source electrode be connected to the 4th road winding w4Same Name of Ends, the one end with output filter capacitor c
It is connected；The other end of output filter capacitor c is connected with one end of output inductor l.
3rd, beneficial effect: the present invention has the advantage that (1) utilize this single-degree-of-freedom of transformer voltage ratio, increase a road around
Group input is so that the exportable bipolar voltage of circuit unit；(2) solve the problems, such as magnetic reset simultaneously；(3) circuit structure can be realized
Four quadrant running, realizes the two-way flow of energy；(4) control program is simple, it is easy to accomplish.
Brief description
Fig. 1 is the Multiple coil normal shock output-parallel single-stage inverter electrical block diagram of the present invention；
Fig. 2 ~ 5 are that the Multiple coil normal shock output-parallel single-stage inverter circuit of the present invention respectively switchs mode schematic diagram.
The primary symbols title of in figure:s 1~s 6First ~ the 6th power triple-pole switch pipe；d 1~d 4 First ~ the 4th
Fly-wheel diode；lOutput inductor；cOutput filter capacitor；u i External power supply.
Specific embodiment
As shown in figure 1, the Multiple coil normal shock output-parallel single-stage inverter of this example is it is characterised in that first via winding
w1Same Name of Ends and external power supply uiPositive pole connection, different name end and the 5th power triple-pole switch pipe s5Drain electrode be connected, the 5th power three
Pole switching tube s5Source electrode and external power supply uiIt is connected；Second road winding w2Different name end and external power supply uiPositive pole connects, Same Name of Ends
With the 6th power triple-pole switch pipe s6Drain electrode be connected, the 6th power triple-pole switch pipe s6Source electrode and external power supply uiIt is connected；The
Three road winding w3Same Name of Ends and the first power triple-pole switch pipe s1Drain electrode be connected, the first power triple-pole switch pipe s1Source electrode
With the first fly-wheel diode d1Anode be connected, the first fly-wheel diode d1Negative electrode and the second fly-wheel diode d2Negative electrode phase
Even, it is connected to one end of output inductor l, the second fly-wheel diode d2Anode and the second power triple-pole switch pipe s2Source
Extremely connected, the second power triple-pole switch pipe s2Drain electrode be connected to the 3rd road winding w3Different name end, with output filter capacitor c's
One end is connected；4th road winding w4Different name end and the 3rd power triple-pole switch pipe s3Source electrode be connected, the 3rd power triple-pole switch
Pipe s3Drain electrode and the 3rd fly-wheel diode d3Negative electrode be connected, the 3rd fly-wheel diode d3Anode and the 4th fly-wheel diode
d4Anode be connected, be connected to one end of output inductor l, the 4th fly-wheel diode d4Negative electrode and the second power three pole open
Close pipe s2Drain electrode be connected, the 4th power triple-pole switch pipe s4Source electrode be connected to the 4th road winding w4Same Name of Ends, with output filter
One end of ripple electric capacity c is connected；The other end of output filter capacitor c is connected with one end of output inductor l.
The operation principle of the present invention is: is more than zero positive half cycle, the first power triple-pole switch pipe s in output current1, second
Power triple-pole switch pipe s2Driving permanent is high level, the 3rd power triple-pole switch pipe s3, the 4th power triple-pole switch pipe s4Keep cutting
Only, the positive half cycle when output voltage is more than zero, the 6th power triple-pole switch pipe s6Turn off, by the 5th power triple-pole switch pipes 5、
6th power triple-pole switch pipes 6Body diode, the first fly-wheel dioded 1, the second fly-wheel dioded 2, output inductorl, output filter capacitorcThe forward converter work of composition.Negative half period when output voltage is less than zero, the 5th power triple-pole switch
Pipe s5Turn off, by the 6th power triple-pole switch pipes 6, the 5th power triple-pole switch pipes 5Body diode, the first fly-wheel dioded 1, the second fly-wheel dioded 2, output inductorl, output filter capacitorcThe forward converter work of composition.Little in output current
In zero negative half period, the 3rd power triple-pole switch pipe s3, the 4th power triple-pole switch pipe s4Driving permanent is high level, the first power
Triple-pole switch pipe s1, the second power triple-pole switch pipe s2Keep cut-off, be more than zero positive half cycle, the 6th power three in output voltage
Pole switching tube s6It is held off, by the 5th power triple-pole switch pipe s5、3rd fly-wheel dioded 3, the 4th fly-wheel dioded 4, defeated
Go out filter inductancel, output filter capacitorcThe forward converter work of composition.In the minus negative half period of output voltage, the 5th power
Triple-pole switch pipe s5It is held off, by the 6th power triple-pole switch pipe s6、3rd fly-wheel dioded 3, the 4th fly-wheel dioded 4、
Output inductorl, output filter capacitorcThe forward converter work of composition.Wherein, first, second, third, fourth power three
Pole switching tube power frequency modulation, plays circuit reversal effect, thus reaching inversion purpose；Five, the 6th work(of double buck circuit parts
Rate triple-pole switch pipe high frequency spwm modulates, to guarantee output voltage waveforms.Because each module in circuit in the present invention will not be simultaneously
Work, do not have circuit ring stream it is ensured that be not required to any bias current when circuit work it is ensured that inverter greater efficiency with
Operation at frequencies.
Concrete operating principle and the Working mould of the present invention below with accompanying drawing 1 as main circuit structure, is described in conjunction with accompanying drawing 2 ~ 5
State.By output voltageu g, electric currenti lPolarity, output is divided into four quadrants: [i l>0、u g>0], [i l>0、u g<0], [i l
<0、u g<0], [i l<0、u g> 0], each quadrant respectively has two kinds of operation modes.
1. output voltage is more than zero, and output current is more than zero, and now circuit includes two operation modes:
Operation mode i: as shown in Fig. 2 (a), the first power triple-pole switch pipe s1, the second power triple-pole switch pipe s2Drive permanent
For high level, the 3rd power triple-pole switch pipe s3, the 4th power triple-pole switch pipe s4, the 6th power triple-pole switch pipe s6Keep cutting
Only, the 5th power triple-pole switch pipe s5Conducting, inductive current starts linear rise, powering load.
Operation mode ii: as shown in Fig. 2 (b), the first power triple-pole switch pipe s1, the second power triple-pole switch pipe s2Drive
Permanent is high level, the 3rd power triple-pole switch pipe s3, the 4th power triple-pole switch pipe s4, the 6th power triple-pole switch pipe s6Keep
Cut-off, the 5th power triple-pole switch pipe s5Turn off, magnetizing current is from s6Body diode afterflow, magnetic recovers problem and is addressed, inductance
Electric current is from the second fly-wheel dioded 2Afterflow, linear decline.
2. output voltage is less than zero, and output current is more than zero, and now circuit includes two operation modes:
Operation mode: as shown in Fig. 3 (a), the first power triple-pole switch pipe s1, the second power triple-pole switch pipe s2Drive
Permanent is high level, the 3rd power triple-pole switch pipe s3, the 4th power triple-pole switch pipe s4, the 5th power triple-pole switch pipe s5Keep
Cut-off, the 5th power triple-pole switch pipe s6Conducting, inductive current starts linear rise, powering load.
Operation mode: as shown in Fig. 3 (b), the first power triple-pole switch pipe s1, the second power triple-pole switch pipe s2Drive
Permanent is high level, the 3rd power triple-pole switch pipe s3, the 4th power triple-pole switch pipe s4, the 5th power triple-pole switch pipe s5Keep
Cut-off, the 6th power triple-pole switch pipe s6Turn off, magnetizing current is from s5Body diode afterflow, magnetic recovers problem and is addressed, inductance
Electric current is from the second fly-wheel dioded 2Afterflow, linear decline.
3. output voltage is less than zero, and output current is less than zero, and now circuit includes two operation modes:
Operation mode: as shown in Fig. 4 (a), the 3rd power triple-pole switch pipe s3, the 4th power triple-pole switch pipe s4Drive
Permanent is high level, the first power triple-pole switch pipe s1, the second power triple-pole switch pipe s2, the 5th power triple-pole switch pipe s5Keep
Cut-off, the 6th power triple-pole switch pipe s6Conducting, inductive current starts linear rise, powering load.
Operation mode: as shown in Fig. 4 (b), the 3rd power triple-pole switch pipe s3, the 4th power triple-pole switch pipe s4Drive
Permanent is high level, the first power triple-pole switch pipe s1, the second power triple-pole switch pipe s2, the 5th power triple-pole switch pipe s5Keep
Cut-off, the 6th power triple-pole switch pipe s6Turn off, magnetizing current is from s5Body diode afterflow, magnetic recovers problem and is addressed, inductance
Electric current is from the 4th fly-wheel dioded 4Afterflow, linear decline.
4. output voltage is more than zero, and output current is less than zero, and now circuit includes two operation modes:
Operation mode: as shown in Fig. 4 (a), the 3rd power triple-pole switch pipe s3, the 4th power triple-pole switch pipe s4Drive
Permanent is high level, the first power triple-pole switch pipe s1, the second power triple-pole switch pipe s2, the 6th power triple-pole switch pipe s6Keep
Cut-off, the 5th power triple-pole switch pipe s5Conducting, inductive current starts linear rise, powering load.
Operation mode: as shown in Fig. 4 (b), the 3rd power triple-pole switch pipe s3, the 4th power triple-pole switch pipe s4Drive
Permanent is high level, the first power triple-pole switch pipe s1, the second power triple-pole switch pipe s2, the 6th power triple-pole switch pipe s6Keep
Cut-off, the 5th power triple-pole switch pipe s5Turn off, magnetizing current is from s6Body diode afterflow, magnetic recovers problem and is addressed, inductance
Electric current is from the 4th fly-wheel dioded 4Afterflow, linear decline.
As seen from the above description, the present invention is that one kind is improved on the basis of normal shock output-parallel combination single-stage inverter
Arrive, increased a road winding.This inverter has the advantage that
(1) utilize this single-degree-of-freedom of transformer voltage ratio, increase by a road winding input so that the exportable bipolarity of circuit unit
Voltage, solves the problems, such as magnetic reset simultaneously；
(2) circuit structure can realize four quadrant running, realizes the two-way flow of energy；
(3) control program is simple, it is easy to accomplish.
The above is only the preferred embodiment of the present invention it is noted that ordinary skill people for the art
For member, some improvement can also be made under the premise without departing from the principles of the invention and develop, these improvement also should be regarded as this
The protection domain of invention.
Claims (2)
1. a kind of Multiple coil normal shock output-parallel single-stage inverter it is characterised in that: it include it include the input of two groups of former limits around
Group and two groups of secondary export winding, two groups of secondary output winding parallel outputs.
2. Multiple coil normal shock output-parallel single-stage inverter according to claim 1 it is characterised in that: first via former limit is defeated
Enter winding (w1) Same Name of Ends and external power supply (ui) positive pole connection, different name end and the 5th power triple-pole switch pipe (s5) drain electrode
It is connected, the 5th power triple-pole switch pipe (s5) source electrode and external power supply (ui) be connected；Second road winding input winding (w2) different name
End and external power supply (ui) positive pole connection, Same Name of Ends and the 6th power triple-pole switch pipe (s6) drain electrode be connected, the 6th power three pole
Switching tube (s6) source electrode and external power supply (ui) be connected；First via secondary exports winding (w3) Same Name of Ends and the first power three
Pole switching tube (s1) drain electrode be connected, the first power triple-pole switch pipe (s1) source electrode and the first fly-wheel diode (d1) anode
It is connected, the first fly-wheel diode (d1) negative electrode and the second fly-wheel diode (d2) negative electrode be connected, be connected to output inductor
The one end of (l), the second fly-wheel diode (d2) anode and the second power triple-pole switch pipe (s2) source electrode be connected, the second power
Triple-pole switch pipe (s2) drain electrode be connected to the first via secondary output winding (w3) different name end, with output filter capacitor (c)
End is connected；Second road secondary output winding (w4) different name end and the 3rd power triple-pole switch pipe (s3) source electrode be connected, the 3rd work(
Rate triple-pole switch pipe (s3) drain electrode and the 3rd fly-wheel diode (d3) negative electrode be connected, the anode of the 3rd fly-wheel diode (d3)
It is connected with the anode of the 4th fly-wheel diode (d4), be connected to one end of output inductor (l), the 4th fly-wheel diode (d4)
Negative electrode and the second power triple-pole switch pipe (s2) drain electrode be connected, the 4th power triple-pole switch pipe (s4) source electrode be connected to
Two road secondary output winding (w4) Same Name of Ends, be connected with one end of output filter capacitor (c)；Output filter capacitor (c) another
One end is connected with one end of output inductor (l).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620554136.1U CN205901623U (en) | 2016-09-29 | 2016-09-29 | Many windings are just swashing parallelly connected single -stage dc -to -ac converter of output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620554136.1U CN205901623U (en) | 2016-09-29 | 2016-09-29 | Many windings are just swashing parallelly connected single -stage dc -to -ac converter of output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205901623U true CN205901623U (en) | 2017-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620554136.1U Expired - Fee Related CN205901623U (en) | 2016-09-29 | 2016-09-29 | Many windings are just swashing parallelly connected single -stage dc -to -ac converter of output |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205901623U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160546A (en) * | 2016-09-29 | 2016-11-23 | 苏州弘鹏新能源有限公司 | Multiple coil normal shock output-parallel single-stage inverter |
| CN110212779A (en) * | 2019-06-14 | 2019-09-06 | 珠海格力电器股份有限公司 | Magnetic field resets system, method and power supply |
-
2016
- 2016-09-29 CN CN201620554136.1U patent/CN205901623U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160546A (en) * | 2016-09-29 | 2016-11-23 | 苏州弘鹏新能源有限公司 | Multiple coil normal shock output-parallel single-stage inverter |
| CN110212779A (en) * | 2019-06-14 | 2019-09-06 | 珠海格力电器股份有限公司 | Magnetic field resets system, method and power supply |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20180929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |