CN107733213A - A kind of high-gain half-bridge impedance network converter - Google Patents
A kind of high-gain half-bridge impedance network converter Download PDFInfo
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- CN107733213A CN107733213A CN201711086138.8A CN201711086138A CN107733213A CN 107733213 A CN107733213 A CN 107733213A CN 201711086138 A CN201711086138 A CN 201711086138A CN 107733213 A CN107733213 A CN 107733213A
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- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/10—Arrangements incorporating converting means for enabling loads to be operated at will from different kinds of power supplies, e.g. from ac or dc
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
- H02M3/158—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
-
- 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
- H02M7/5387—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 in a bridge configuration
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention discloses a kind of high-gain half-bridge impedance network converter, including dc source, diode, the first electric capacity, the second electric capacity, the 3rd electric capacity, first switch pipe, second switch pipe and three winding coupling inductance, compared with the structure of existing electric power electric transformer, straight-through phenomenon will not occurs in it to the structures shape for the high-gain half-bridge impedance network converter that the application provides, safe；In addition, the application can adjust the output voltage of the transformer by changing the number of turn of the dutycycle of first switch pipe and second switch pipe, the first inductance, the second inductance and the 3rd inductance, obtain the adjustable exchange output of buck or the adjustable direct current output of buck, it is applied widely, control is simple, efficiency high, cost is low and small volume.
Description
Technical field
The present invention relates to energy conversion technique field is become, more particularly to a kind of high-gain half-bridge impedance network converter.
Background technology
Low conversion efficiency and larger volume due to traditional transformer, electric power electric transformer had obtained rapidly in recent years
Development.However, existing electric power electric transformer still suffers from more technical barrier, Fig. 1 is refer to, Fig. 1 is in the prior art
A kind of electric power electric transformer structural representation, electric power electric transformer of the prior art generally has a disadvantage that：
If 1) because false triggering causes during the switching tube alternate conduction on the same bridge arm of electric power electric transformer
When opening simultaneously, switching tube can be damaged or even burn power supply, large effect is caused to circuit.
2) existing electric power electric transformer is typically only capable to complete decompression inversion, when needing boosting, needs additionally in prime
First class boost circuit is added, or transformer is added to improve output voltage in output end, but first class boost electricity is added in prime
Road can cause that the control of integrated circuit becomes complicated and efficiency is low, if output end add transformer can increasing circuit volume and
Cost.
3) electric power electric transformer of the prior art can not can realize that controllable AC exports, and and can realizes that direct current is defeated
Go out, narrow application range.
Therefore, how to provide a kind of scheme for solving above-mentioned technical problem is that those skilled in the art need to solve at present
Problem.
The content of the invention
It is an object of the invention to provide the high-gain half-bridge that a kind of high-gain half-bridge impedance network converter, the application provide
Straight-through phenomenon will not occurs in it to the structures shape of impedance network converter, safe；In addition, the application can pass through change
The dutycycle of first switch pipe and second switch pipe, the first inductance, the number of turn of the second inductance and the 3rd inductance adjust the transformation
The output voltage of device, obtain the adjustable exchange output of buck or the adjustable direct current output of buck, applied widely, control
Simply, efficiency high, cost is low and small volume.
In order to solve the above technical problems, the invention provides a kind of high-gain half-bridge impedance network converter, including direct current
Power supply, diode, the first electric capacity, the second electric capacity, the 3rd electric capacity, first switch pipe, second switch pipe and three winding coupling inductance,
Wherein：The positive pole of the dc source is connected with the first end of first electric capacity and the anode of the diode respectively, described
The negative electrode of diode is connected with the first end of the first inductance of the three winding coupling inductance, the second end point of first inductance
It is not connected with the first end of the 3rd inductance of the three winding coupling inductance and the first end of the 3rd electric capacity, the 3rd electricity
Second end of sense is connected with the first end of the first switch pipe, and the second end of the first switch pipe is opened with described second respectively
Close the first end of pipe and the first end connection of load, the second end of the 3rd electric capacity and the second of the three winding coupling inductance
The first end connection of inductance, the second end of second inductance the second end with the second switch pipe, second electricity respectively
The negative pole of the first end of appearance and the dc source connects, the second end of first electric capacity respectively with second electric capacity the
Two ends and the connection of the second end of the load；Wherein, the first end of first inductance, the first end of second inductance and institute
The first end for stating the 3rd inductance is Same Name of Ends；
When first switch pipe conducting and when the second switch pipe turns on or first switch pipe shut-off and the
When two switching tubes turn on：
When first switch pipe conducting and second switch pipe shut-off：
Wherein, VOFor the output voltage of the converter, VdFor the output voltage of the dc source, N1、N2、N3Respectively
The number of turn of first inductance, second inductance and the 3rd inductance, D1、D2Respectively described first switch pipe and described
The dutycycle of second switch pipe.
Preferably, the dc source is new energy power supply.
Preferably, the new energy power supply is photovoltaic panel.
Preferably, the dc source is energy-storage battery.
Preferably, the first switch pipe and the second switch pipe are N-type Metal-oxide-semicondutor NMOS,
NMOS drain electrode is as the first end of the first switch pipe and the first end of the second switch pipe, and NMOS source electrode is as institute
State the second end of first switch pipe and the second end of the second switch pipe.
Preferably, the first switch pipe and the second switch pipe are insulated gate bipolar transistor IGBT, IGBT
Colelctor electrode as the first end of the first switch pipe and the first end of the second switch pipe, IGBT emitter stage is as institute
State the second end of first switch pipe and the second end of the second switch pipe.
Preferably, first inductance, second inductance and the 3rd inductance share a magnetic core.
Compared with the structure of existing electric power electric transformer, the high-gain half-bridge impedance network converter of the application offer
Structures shape its straight-through phenomenon will not occur, it is safe；In addition, the application can be by changing first switch pipe and
The dutycycle of two switching tubes, the first inductance, the number of turn of the second inductance and the 3rd inductance adjust the output voltage of the transformer, obtain
To the adjustable exchange output of buck or the adjustable direct current output of buck, applied widely, control is simple, efficiency high, into
This low and small volume.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to institute in prior art and embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of structural representation of electric power electric transformer of the prior art；
Fig. 2 is a kind of structural representation of high-gain half-bridge impedance network converter provided by the invention；
Fig. 3 is fundamental diagram of the high-gain half-bridge impedance network converter provided by the invention in mode 1；
Fig. 4 is fundamental diagram of the high-gain half-bridge impedance network converter provided by the invention in mode 2；
Fig. 5 is fundamental diagram of the high-gain half-bridge impedance network converter provided by the invention in mode 3.
Embodiment
The core of the present invention is to provide a kind of high-gain half-bridge impedance network converter, the high-gain half-bridge that the application provides
Straight-through phenomenon will not occurs in it to the structures shape of impedance network converter, safe；In addition, the application can pass through change
The dutycycle of first switch pipe and second switch pipe, the first inductance, the number of turn of the second inductance and the 3rd inductance adjust the transformation
The output voltage of device, obtain the adjustable exchange output of buck or the adjustable direct current output of buck, applied widely, control
Simply, efficiency high, cost is low and small volume.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 2 is refer to, Fig. 2 is a kind of structural representation of high-gain half-bridge impedance network converter provided by the invention,
The transformer includes dc source Vd, diode D1, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, first switch pipe S1、
Second switch pipe S2And three winding coupling inductance, wherein：Dc source VdPositive pole respectively with the first electric capacity C1First end and two
Pole pipe D1Anode connection, diode D1Negative electrode and three winding coupling inductance the first inductance L1First end connection, first electricity
Feel L1The second end the 3rd inductance L with three winding coupling inductance respectively3First end and the 3rd electric capacity C3First end connection,
3rd inductance L3The second end and first switch pipe S1First end connection, first switch pipe S1The second end opened respectively with second
Close pipe S2First end and load first end connection, the 3rd electric capacity C3The second end and three winding coupling inductance the second inductance
L2First end connection, the second inductance L2The second end respectively with second switch pipe S2The second end, the second electric capacity C2First end
And dc source VdNegative pole connection, the first electric capacity C1The second end respectively with the second electric capacity C2The second end and load second
End connection；Wherein, the first inductance L1First end, the second inductance L2First end and the 3rd inductance L3First end be Same Name of Ends；
As first switch pipe S1Conducting and second switch pipe S2During conducting or first switch pipe S1Shut-off and second switch pipe
S2During conducting：
As first switch pipe S1Conducting and second switch pipe S2During shut-off：
Wherein, VOFor the output voltage of converter, VdFor dc source VdOutput voltage, N1、N2、N3Respectively first electricity
Feel L1, the second inductance L2And the 3rd inductance L3The number of turn, D1、D2Respectively first switch pipe S1With second switch pipe S2Duty
Than.
Specifically, the application passes through dc source Vd, diode D1, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3、
First switch pipe S1, second switch pipe S2And three winding coupling inductance builds converter hardware circuit, passes through further according to being actually needed
Control first switch pipe S1With second switch pipe S2Turn-on and turn-off, the first inductance L1, the second inductance L2And the 3rd inductance L3's
The number of turn controls the voltage output of converter.It is not difficult to draw, the knot for the high-gain half-bridge impedance network converter that the application provides
Structure determines that straight-through phenomenon will not occurs in it, safe.
Different from the circuit structure of existing electric power electric transformer, also determine that it becomes different from existing power electronics
The course of work of depressor, for convenience of the understanding to the application, the high-gain half-bridge impedance provided below in conjunction with the accompanying drawings the application
The operation principle of network transformation device is described：
Specifically, high-gain half-bridge impedance network converter provided by the invention is according to first switch pipe S1 and second switch
Pipe S2 conducting situation is divided into following three kinds of situations：
Fig. 3 is refer to, Fig. 3 is that work of the high-gain half-bridge impedance network converter provided by the invention in mode 1 is former
Reason figure.
When circuit is operated in mode 1, first switch pipe S1With second switch pipe S2It is open-minded, diode D1Back-pressure is born to cut
Only, dc source VdTo the first electric capacity C1Charging, the 3rd electric capacity C3With the second inductance L of three winding coupling inductance2To three winding coupling
Close the 3rd inductance L of inductance3Charging, the second electric capacity C2Energy is provided for load.
Fig. 4 is refer to, Fig. 4 is that work of the high-gain half-bridge impedance network converter provided by the invention in mode 2 is former
Reason figure.
When circuit is operated in mode 2, first switch pipe S1It is open-minded, second switch pipe S2Shut-off, diode D1Positive guide
It is logical, dc source VdWith the first electric capacity C1To the first inductance L of three winding coupling inductance1, three winding coupling inductance the second inductance
L2, the 3rd electric capacity C3, three winding coupling inductance the 3rd inductance L3With the second electric capacity C2Charging, and provide energy for load.
Fig. 5 is refer to, Fig. 5 is that work of the high-gain half-bridge impedance network converter provided by the invention in mode 3 is former
Reason figure.
When circuit is operated in mode 3, first switch pipe S1Shut-off, second switch pipe S2It is open-minded, diode D1Positive guide
It is logical, dc source VdTo the first electric capacity C1, three winding coupling inductance the first inductance L1, three winding coupling inductance the second inductance
L2With the 3rd electric capacity C3Charging, the second electric capacity C2Energy is provided for load.
Analyzed according to the inductance under above-mentioned three kinds of mode and electric capacity, draw the first inductance of three winding coupling inductance
L1 voltage and the output voltage of converter are respectively：
According to the voltage-second balance theorem of inductance and the ampere-second equilibrium theorem of electric capacity, can obtain：
When converter is in mode 1 and mode 3：
When converter is in mode 2：
It can be seen that the output voltage of converter is by first switch pipe S1With second switch pipe S2Dutycycle, the first inductance L1、
Second inductance L2With the 3rd inductance L3The number of turn together decide on, change first switch pipe S as needed1With second switch pipe S2's
Dutycycle, the first inductance L1, the second inductance L2With the 3rd inductance L3The number of turn can obtain required alternating voltage or positive and negative straight
Flow power supply Vd。
In addition, in the high-gain half-bridge impedance network converter that the application provides, the second electric capacity C2With the 3rd electric capacity C3Two
End can also connect with load respectively, so as to realize while be multiple load supplyings, meet industrial development demand well.
To sum up, compared with the structure of existing electric power electric transformer, the high-gain half-bridge impedance network of the application offer
Straight-through phenomenon will not occurs in it to the structures shape of converter, safe；In addition, the application can be by changing first switch
Manage with the number of turn of the dutycycle of second switch pipe, the first inductance, the second inductance and the 3rd inductance to adjust the output of the transformer
Voltage, the adjustable exchange output of buck or the adjustable direct current output of buck are obtained, applied widely, control is simple, effect
Rate is high, and cost is low and small volume.
On the basis of above-described embodiment：
As a kind of preferred embodiment, dc source VdFor new energy power supply.
Specifically, dc source V heredCan be the first new energy power supply, new energy obtains as a kind of clean energy resource
The support energetically of country is arrived, new energy has the advantages that value is high, environmentally friendly, inexhaustible.Certainly, here
Dc source VdCan also be other kinds of dc source, the application is not particularly limited herein.
As a kind of preferred embodiment, new energy power supply is photovoltaic panel.
Specifically, the energy included in sunshine is converted into electric energy, clean environment firendly, without any pollution by photovoltaic panel.Certainly,
Here new energy power supply can also be other kinds of new energy power supply, such as wind power battery plate, the application are not spy herein
Other restriction.
As a kind of preferred embodiment, dc source VdFor energy-storage battery.
Specifically, energy-storage battery here can be battery, or electrokinetic cell, the application are not done especially herein
Restriction.
As a kind of preferred embodiment, first switch pipe S1With second switch pipe S2It is N-type metal-oxide-partly lead
Body NMOS, NMOS drain electrode are as first switch pipe S1First end and second switch pipe S2First end, NMOS source electrode conduct
First switch pipe S1The second end and second switch pipe S2The second end.
As a kind of preferred embodiment, first switch pipe S1With second switch pipe S2It is insulated gate bipolar transistor
IGBT, IGBT colelctor electrode are as first switch pipe S1First end and second switch pipe S2First end, IGBT emitter stage makees
For first switch pipe S1The second end and second switch pipe S2The second end.
Specifically, in actual applications, if the electric current in transformer is very big, first switch pipe S here1And second open
Close pipe S2Can also be by NMOS modules in parallel multiple NMOS, or for by IGBT module in parallel multiple IGBT.
In addition, first switch pipe S here1And second switch pipe S2It is also an option that other kinds of switching tube, the application
It is not particularly limited, is determined according to actual conditions herein.
As a kind of preferred embodiment, the first inductance L1, the second inductance L2And the 3rd inductance L3Share a magnetic core.
Specifically, the first inductance L in the three winding coupling inductance that the application provides1, the second inductance L2And the 3rd inductance L3
It can be wound on a magnetic core, reduce volume, reduce cost, and the circuit structure is simple, is easy to industrial realization.
It should be noted that in this manual, such as first and second or the like relational terms are used merely to one
Individual entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operate it
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that process, method, article or equipment including a series of elements not only include those
Key element, but also the other element including being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element in the process including the key element, method, article or equipment also be present.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (7)
1. a kind of high-gain half-bridge impedance network converter, it is characterised in that including dc source, diode, the first electric capacity,
Two electric capacity, the 3rd electric capacity, first switch pipe, second switch pipe and three winding coupling inductance, wherein：The positive pole of the dc source
It is connected respectively with the first end of first electric capacity and the anode of the diode, the negative electrode of the diode and the three winding
The first end connection of first inductance of coupling inductance, the second end of first inductance respectively with the three winding coupling inductance
The first end of 3rd inductance and the connection of the first end of the 3rd electric capacity, the second end and the first switch of the 3rd inductance
The first end connection of pipe, the second end of the first switch pipe respectively with the first end of the second switch pipe and load first
End connection, the second end of the 3rd electric capacity is connected with the first end of the second inductance of the three winding coupling inductance, and described the
Second end of two inductance the second end with the second switch pipe, the first end of second electric capacity and the dc source respectively
Negative pole connection, the second end of first electric capacity connects with the second end of second electric capacity and the second end of the load respectively
Connect；Wherein, the first end of the first end of first inductance, the first end of second inductance and the 3rd inductance is of the same name
End；
When first switch pipe conducting and second switch pipe conducting or the first switch pipe turns off and second opens
When closing pipe conducting：
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Wherein, VOFor the output voltage of the converter, VdFor the output voltage of the dc source, N1、N2、N3It is respectively described
The number of turn of first inductance, second inductance and the 3rd inductance, D1、D2Respectively described first switch pipe and described second
The dutycycle of switching tube.
2. high-gain half-bridge impedance network converter as claimed in claim 1, it is characterised in that the dc source is new energy
Source current.
3. high-gain half-bridge impedance network converter as claimed in claim 2, it is characterised in that the new energy power supply is light
Lie prostrate plate.
4. high-gain half-bridge impedance network converter as claimed in claim 1, it is characterised in that the dc source is energy storage
Battery.
5. high-gain half-bridge impedance network converter as claimed in claim 1, it is characterised in that the first switch pipe and institute
It is first of N-type Metal-oxide-semicondutor NMOS, NMOS drain electrode as the first switch pipe to state second switch pipe
End and the first end of the second switch pipe, the second end and the second switch of NMOS source electrode as the first switch pipe
Second end of pipe.
6. high-gain half-bridge impedance network converter as claimed in claim 1, it is characterised in that the first switch pipe and institute
It is insulated gate bipolar transistor IGBT to state second switch pipe, the first end of IGBT colelctor electrode as the first switch pipe
With the first end of the second switch pipe, the second end and the second switch of IGBT emitter stage as the first switch pipe
Second end of pipe.
7. the high-gain half-bridge impedance network converter as described in claim any one of 1-6, it is characterised in that first electricity
Sense, second inductance and the 3rd inductance share an iron core.
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