CN107612316A - A kind of multiport electric power electric transformer of alternating current-direct current mixing output - Google Patents
A kind of multiport electric power electric transformer of alternating current-direct current mixing output Download PDFInfo
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- CN107612316A CN107612316A CN201710882939.9A CN201710882939A CN107612316A CN 107612316 A CN107612316 A CN 107612316A CN 201710882939 A CN201710882939 A CN 201710882939A CN 107612316 A CN107612316 A CN 107612316A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/20—Climate change mitigation technologies for sector-wide applications using renewable energy
Abstract
The invention discloses a kind of multiport electric power electric transformer of alternating current-direct current mixing output, including dc source, first switch pipe, second switch pipe, the 3rd switching tube, the 4th switching tube, the first inductance, the second inductance, the 3rd inductance, the 4th inductance, the first electric capacity, the second electric capacity, the 3rd electric capacity and the 4th electric capacity, and the output voltage of transformerWherein, D2For the dutycycle of second switch pipe, D3For the dutycycle of the 3rd switching tube, VdFor the output voltage of dc source.Straight-through phenomenon will not occurs in it to the structures shape for the multiport electric power electric transformer that the application provides, safe；The application can adjust the output voltage of the transformer by changing the dutycycle of second switch pipe and the 3rd switching tube, obtain the adjustable exchange output of buck or the adjustable direct current output of buck, and applied widely, control is simple, and cost is low and small volume；The application includes three output ports, can be simultaneously multiple load supplyings, meet industrial development demand well.
Description
Technical field
The present invention relates to electric and electronic technical field, the multiport electric power that output is mixed more particularly to a kind of alternating current-direct current is electric
Sub- transformer.
Background technology
With the development of China's electronics industry, electric power electric transformer industry also has significant progress, power electronics transformation
Device is developed rapidly.However, existing electric power electric transformer still suffers from more technical barrier.It refer to Fig. 1, Fig. 1
For a kind of structural representation of electric power electric transformer of the prior art, electric power electric transformer of the prior art generally has
Have a disadvantage that：
1) during electric power electric transformer normal work, the switching tube alternate conduction on same bridge arm, namely switching tube S1, open
Switching tube S2, switching tube S3 shut-offs when closing pipe S4 conductings, switching tube S1, switching tube S4 are closed when switching tube S2, switching tube S3 are turned on
It is disconnected, but the switching tube on same bridge arm may be caused to simultaneously turn on because of false triggering, switching tube can be damaged or even burn power supply, it is right
Circuit causes larger potential safety hazard.
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, causes the control of integrated circuit to become complicated and less efficient；Or improved in output end addition defeated
Go out the transformer of voltage, add the volume and cost of circuit, economy is poor.
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.
4) existing electric power electric transformer is typically single output, can not meet growing industrial development demand.
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 a kind of multiport electric power electric transformer of alternating current-direct current mixing output, will not occur straight
Logical phenomenon, it is safe；The adjustable exchange output of buck or the adjustable direct current output of buck, the scope of application can be obtained
Extensively, control is simple, efficiency high, and cost is low and small volume；, can be simultaneously to be multiple meanwhile the application includes three output ports
Load supplying, industrial development demand is met well.
In order to solve the above technical problems, the invention provides a kind of multiport power electronics transformation of alternating current-direct current mixing output
Device, including dc source, first switch pipe, second switch pipe, the 3rd switching tube, the 4th switching tube, the first inductance, the second electricity
Sense, the 3rd inductance, the 4th inductance, the first electric capacity, the second electric capacity, the 3rd electric capacity and the 4th electric capacity, wherein：
The output plus terminal of the dc source respectively with the first end of second inductance and the 3rd inductance first
End connection, the second end of second inductance respectively with the first end of second electric capacity and the first end of the second switch pipe
Connection, the second end of second electric capacity connect with the first end of first inductance and the second end of the first switch pipe respectively
Connecing, the first end of the first switch pipe is connected with the positive pole of first electric capacity, and its common port is connected with the first end loaded,
Second end of the 3rd inductance is connected with the first end of the 3rd switching tube and the first end of the 3rd electric capacity respectively, institute
The second end for stating the 3rd electric capacity is connected with the first end of the 4th inductance and the second end of the 4th switching tube respectively, described
The first end of 4th switching tube is connected with the positive pole of the 4th electric capacity, and its common port is connected with the second end of the load, institute
State the second end of second switch pipe the second end with the 3rd switching tube, the output negative terminal, described of the dc source respectively
Second end of the first inductance, the negative pole of first electric capacity, the second end of the 4th inductance and the negative pole of the 4th electric capacity
Connection；
The output voltage of the transformerWherein, D2For the duty of the second switch pipe
Than D3For the dutycycle of the 3rd switching tube, VdFor the output voltage of the dc source.
Preferably, the dc source is the first new energy power supply.
Preferably, the first new energy power supply is the first photovoltaic panel.
Preferably, the dc source is energy-storage battery.
Preferably, the first switch pipe, the second switch pipe, the 3rd switching tube and the 4th switching tube are equal
For NMOS, NMOS drain electrode is opened as the first switch pipe, the second switch pipe, the 3rd switching tube and the described 4th
Close the first end of pipe, NMOS source electrode is as the first switch pipe, the second switch pipe, the 3rd switching tube and described
Second end of the 4th switching tube.
Preferably, in addition to：
Output plus terminal is connected with the positive pole of first electric capacity, exports negative terminal is connected with the negative pole of first electric capacity
Two new energy power supplys；
Output plus terminal is connected with the positive pole of the 4th electric capacity, exports negative terminal is connected with the negative pole of the 4th electric capacity
Three new energy power supplys.
Preferably, the second new energy power supply is the second photovoltaic panel, and the 3rd new energy power supply is the 3rd photovoltaic panel.
Preferably, in addition to：
Output plus terminal is connected with the positive pole of first electric capacity, exports negative terminal is connected with the negative pole of first electric capacity
One new energy voltage follow module, for following the voltage at the first electric capacity both ends；
Output plus terminal is connected with the positive pole of the 4th electric capacity, exports negative terminal is connected with the negative pole of the 4th electric capacity
Two new energy voltage follow modules, for following the voltage at the 4th electric capacity both ends.
Preferably, the first new energy voltage follow module and the second new energy voltage follow module include the
Four photovoltaic panels and boost module, the input positive terminal of the boost module is connected with the output plus terminal of the 4th photovoltaic panel, described
The input negative terminal of boost module is connected with the output negative terminal of the 4th photovoltaic panel, and the output plus terminal of the boost module is as institute
In the output plus terminal of new energy voltage follow module, the output negative terminal of the boost module is used as place new energy voltage follow mould
The output negative terminal of block.
Preferably, the boost module includes the 5th switching tube, the 5th inductance and diode, wherein：
Input positive terminal of the first end of 5th inductance as the boost module, the second end point of the 5th inductance
It is not connected with the anode of the diode and the first end of the 5th switching tube, the second end of the 5th switching tube is as institute
State the input negative terminal and output negative terminal of boost module, the output plus terminal of the negative electrode of the diode as the boost module.
The invention provides a kind of multiport electric power electric transformer of alternating current-direct current mixing output, including dc source, the
One switching tube, second switch pipe, the 3rd switching tube, the 4th switching tube, the first inductance, the second inductance, the 3rd inductance, the 4th electricity
Sense, the first electric capacity, the second electric capacity, the 3rd electric capacity and the 4th electric capacity, and the output voltage of transformerWherein, D2For the dutycycle of second switch pipe, D3For the dutycycle of the 3rd switching tube, VdTo be straight
Flow the output voltage of power supply.
Compared with the structure of existing electric power electric transformer, the knot for the multiport electric power electric transformer that the application provides
Structure determines that straight-through phenomenon will not occurs in it, safe；In addition, the application can be opened by changing second switch pipe and the 3rd
The dutycycle for closing pipe adjusts the output voltage of the transformer, obtains the adjustable exchange output of buck or buck is adjustable
Direct current output, applied widely, control is simple, efficiency high, and cost is low and small volume；Meanwhile the application includes three output ends
Mouthful, it can be simultaneously multiple load supplyings, meet industrial development demand well.
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 the multiport electric power electric transformer of alternating current-direct current mixing output provided by the invention
Figure；
Fig. 3 is work of the multiport electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode 1
Schematic diagram；
Fig. 4 is work of the multiport electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode 2
Schematic diagram；
Fig. 5 is work of the multiport electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode 3
Schematic diagram；
Fig. 6 is work of the multiport electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode 4
Schematic diagram；
Fig. 7 (a) for it is a kind of be the V for realizing circuit output alternating voltage shown in Fig. 21Schematic diagram；
Fig. 7 (b) for it is a kind of be the V for realizing circuit output alternating voltage shown in Fig. 22Schematic diagram；
Schematic diagrames of the Fig. 7 (c) by Fig. 7 (a) and Fig. 7 (b) alternating voltage formed；
Fig. 8 (a) for it is a kind of be the V for realizing circuit output DC voltage shown in Fig. 21Schematic diagram；
Fig. 8 (b) for it is a kind of be the V for realizing circuit output DC voltage shown in Fig. 22Schematic diagram；
Schematic diagrames of the Fig. 8 (c) by Fig. 8 (a) and Fig. 8 (b) DC voltage formed；
Fig. 9 (a) is that another kind is the V for realizing circuit output DC voltage shown in Fig. 21Schematic diagram；
Fig. 9 (b) is that another kind is the V for realizing circuit output DC voltage shown in Fig. 22Schematic diagram；
Schematic diagrames of the Fig. 9 (c) by Fig. 9 (a) and Fig. 9 (b) DC voltage formed；
Figure 10 is a kind of schematic diagram of control strategy provided by the invention；
Figure 11 is a kind of structural representation of new energy voltage follow module provided by the invention.
Embodiment
The core of the present invention is to provide a kind of multiport electric power electric transformer of alternating current-direct current mixing output, will not occur straight
Logical phenomenon, it is safe；The adjustable exchange output of buck or the adjustable direct current output of buck, the scope of application can be obtained
Extensively, control is simple, efficiency high, and cost is low and small volume；, can be simultaneously to be multiple meanwhile the application includes three output ports
Load supplying, industrial development demand is met well.
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 multiport electric power electric transformer of alternating current-direct current mixing output provided by the invention
Structural representation, the multiport electric power electric transformer include dc source, first switch pipe S1, second switch pipe S2, the 3rd open
Close pipe S3, the 4th switching tube S4, the first inductance L1, the second inductance L2, the 3rd inductance L3, the 4th inductance L4, the first electric capacity C1, second
Electric capacity C2, the 3rd electric capacity C3And the 4th electric capacity C4, wherein：
The output plus terminal of dc source respectively with the second inductance L2First end and the 3rd inductance L3First end connection, the
Two inductance L2The second end respectively with the second electric capacity C2First end and second switch pipe S2First end connection, the second electric capacity C2
The second end respectively with the first inductance L1First end and first switch pipe S1The second end connection, first switch pipe S1First
End and the first electric capacity C1Positive pole connection, its common port with load R first end be connected, the 3rd inductance L3The second end respectively with
3rd switching tube S3First end and the 3rd electric capacity C3First end connection, the 3rd electric capacity C3The second end respectively with the 4th inductance
L4First end and the 4th switching tube S4The second end connection, the 4th switching tube S4First end and the 4th electric capacity C4Positive pole connect
Connect, its common port is connected with loading R the second end, second switch pipe S2The second end respectively with the 3rd switching tube S3The second end,
The output negative terminal of dc source, the first inductance L1The second end, the first electric capacity C1Negative pole, the 4th inductance L4The second end and
Four electric capacity C4Negative pole connection；
The output voltage of transformerWherein, D2For second switch pipe S2Dutycycle, D3
For the 3rd switching tube S3Dutycycle, VdFor the output voltage of dc source.
Firstly the need of explanation, the voltage of the load R left ends in Fig. 2 is designated as V by the application1, the voltage of load R right-hand members
It is designated as V2, the voltage V at load R both ends0=V1-V2。
The application is by changing second switch pipe S2With the 3rd switching tube S3Dutycycle adjust the voltage at load R both ends,
To realize load R different demands, transless AC boosting can be achieved.In addition, the alternating current-direct current mixing output that the application provides
Multiport electric power electric transformer structures shape its straight-through phenomenon will not occur, it is safe.
Different from the circuit structure of conventional electric power electronic transformer, also determine that it is different from conventional electric power electronic transformer
The course of work, for convenience of understanding to the application, output are mixed more to the alternating current-direct current that the application provides below in conjunction with the accompanying drawings
The operation principle of port electric power electric transformer is described：
Fig. 3 is refer to, Fig. 3 is the multiport electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode
Fundamental diagram when 1.
When circuit is operated in mode 1, first switch pipe S1, the 4th switching tube S4Shut-off, second switch pipe S2, the 3rd open
Close pipe S3Open-minded, dc source is respectively to the second inductance L2, the 3rd inductance L3Charging, the second electric capacity C2To the first inductance L1Charging,
3rd electric capacity C3To the 4th inductance L4Charging, the first electric capacity C1Energy, the 4th electric capacity C are provided for load R4Energy is provided for load R
Amount.
Fig. 4 is refer to, Fig. 4 is the multiport electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode
Fundamental diagram when 2.
When circuit is operated in mode 2, first switch pipe S1, the 4th switching tube S4It is open-minded, second switch pipe S2, the 3rd open
Close pipe S3Shut-off, dc source and the second inductance L2Respectively to the second electric capacity C2, the first electric capacity C1Charging, and provide energy for load R
Amount, the first inductance L1To the first electric capacity C1Charging, and provide energy, dc source and the 3rd inductance L for load R3Respectively to the 3rd
Electric capacity C3, the 4th electric capacity C4Charging, and provide energy, the 4th inductance L for load R4To the 4th electric capacity C4Charging, and carried for load R
Energy supply amount.
Fig. 5 is refer to, Fig. 5 is the multiport electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode
Fundamental diagram when 3.
When circuit is operated in mode 3, first switch pipe S1, the 3rd switching tube S3Shut-off, second switch pipe S2, the 4th open
Close pipe S4Open-minded, dc source is respectively to the second inductance L2, the second electric capacity C2With the first inductance L1Charging, the first electric capacity C1For load
R provides energy, dc source and the 3rd inductance L3Respectively to the 3rd electric capacity C3, the 4th electric capacity C4Charging, and provide energy for load R
Amount, the 4th inductance L4To the 4th electric capacity C4Charging, and provide energy for load R.
Fig. 6 is refer to, Fig. 6 is the multiport electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode
Fundamental diagram when 4.
When circuit is operated in mode 4, first switch pipe S1, the 3rd switching tube S3It is open-minded, second switch pipe S2, the 4th open
Close pipe S4Shut-off, dc source and the second inductance L2Respectively to the second electric capacity C2, the first electric capacity C1Charging, and provide energy for load R
Amount, the first inductance L1To the first electric capacity C1Charging, and energy is provided for load R, dc source is to the 3rd inductance L3Charging, the 3rd
Electric capacity C3To the 4th inductance L4Charging, the 4th electric capacity C4Energy is provided for load R.
It can be seen that the multiport electric power electric transformer for the alternating current-direct current mixing output that the application provides is according to four switching tubes
Conducting situation can be divided into above-mentioned four kinds of operation modes, and the inductance to more than under four kinds of mode is analyzed, and obtains the first inductance
L1, the second inductance L2, the 3rd inductance L3With the 4th inductance L4Voltage be：
Here D is defined2For second switch pipe S2Dutycycle, D3For the 3rd switching tube S3Dutycycle, T be switching tube drive
The cycle of dynamic signal.
According to the voltage-second balance theorem of inductance, it can be deduced that：
Then：
It can be seen that the voltage V at load R both ends0By D2And D3Together decide on, change D2And D3Required exchange output can be obtained
Voltage or positive and negative VD.
Specifically, refer to Fig. 7 (a) -7 (c), Fig. 7 (a) for it is a kind of be to realize circuit output alternating voltage shown in Fig. 2
V1Schematic diagram；Fig. 7 (b) for it is a kind of be the V for realizing circuit output alternating voltage shown in Fig. 22Schematic diagram；Fig. 7 (c) is Fig. 7
(a) schematic diagram of the alternating voltage formed with Fig. 7 (b).
Specifically, refer to Fig. 8 (a) -8 (c), Fig. 8 (a) for it is a kind of be to realize circuit output DC voltage shown in Fig. 2
V1Schematic diagram；Fig. 8 (b) for it is a kind of be the V for realizing circuit output DC voltage shown in Fig. 22Schematic diagram；Fig. 8 (c) is Fig. 8
(a) schematic diagram of the DC voltage formed with Fig. 8 (b).
Specifically, Fig. 9 (a) -9 (c) is refer to, Fig. 9 (a) is that another kind is to realize circuit output DC voltage shown in Fig. 2
V1Schematic diagram；Fig. 9 (b) is that another kind is the V for realizing circuit output DC voltage shown in Fig. 22Schematic diagram；Fig. 9 (c) is
The schematic diagram for the DC voltage that Fig. 9 (a) and Fig. 9 (b) are formed.
Figure 10 is refer to, Figure 10 is a kind of schematic diagram of control strategy provided by the invention, it is seen then that by changing V1And V2
Given V1refAnd V2ref, then by control strategy as shown in Figure 10, the switches of four switching tubes is controlled to realize V0Lifting
Pressure, without extra increase transformer, volume is reduced, reduces cost.
To sum up：It is defeated that the multiport electric power electric transformer for the alternating current-direct current mixing output that the application provides can be operated in exchange
Go out and two kinds of mode of operations of direct current output.Exchange under output services pattern, by controlling the dutycycle of four switching tubes to bear
It is identical to carry the direct current biasing of R both ends output, phase of ac signal is on the contrary, so as to obtain the exchange of buck output；Direct current output
It is controllable direct current output by controlling the dutycycle of four switching tubes to load R both end voltages under mode of operation, so as to
To positive and negative controllable buck direct current output.
It should also be noted that, in the multiport electric power electric transformer for the alternating current-direct current mixing output that the application provides, the
One electric capacity C1With the 4th electric capacity C4Both ends also respectively can with load connect.
Wherein, in actual applications, load here can be but be not limited only to the battery of mobile phone to charge, the application
It is not particularly limited herein.
It can be seen that the multiport electric power electric transformer for the alternating current-direct current mixing output that the application provides is multiport transformer,
It can be simultaneously multiple load supplyings, meet industrial development demand well.
The invention provides a kind of multiport electric power electric transformer of alternating current-direct current mixing output, including dc source, the
One switching tube, second switch pipe, the 3rd switching tube, the 4th switching tube, the first inductance, the second inductance, the 3rd inductance, the 4th electricity
Sense, the first electric capacity, the second electric capacity, the 3rd electric capacity and the 4th electric capacity, and the output voltage of transformerWherein, D2For the dutycycle of second switch pipe, D3For the dutycycle of the 3rd switching tube, VdTo be straight
Flow the output voltage of power supply.
Compared with the structure of existing electric power electric transformer, the knot for the multiport electric power electric transformer that the application provides
Structure determines that straight-through phenomenon will not occurs in it, safe；In addition, the application can be opened by changing second switch pipe and the 3rd
The dutycycle for closing pipe adjusts the output voltage of the transformer, obtains the adjustable exchange output of buck or buck is adjustable
Direct current output, applied widely, control is simple, efficiency high, and cost is low and small volume；Meanwhile the application includes three output ends
Mouthful, it can be simultaneously multiple load supplyings, meet industrial development demand well.
On the basis of above-described embodiment：
As a kind of preferred embodiment, dc source is the first new energy power supply.
Specifically, the dc source of the application can be the first new energy power supply, with advances in technology and sustainable development
Thought of unrolling and viewing a scroll painting is established, and new energy has obtained in-depth study and utilization, and new energy has recyclability and free from environmental pollution
The advantages that, alleviate undue dependence of the mankind to mineral matter resource.
As a kind of preferred embodiment, the first new energy power supply is the first photovoltaic panel.
Specifically, the energy included in sunshine is converted into electric energy by the first photovoltaic panel by opto-electronic conversion, will not be polluted
Environment, be also not in energy shortage.Certainly, the first new energy power supply here can also be other kinds of new energy electricity
Source, such as wind power battery plate, the application are not particularly limited herein.
As a kind of preferred embodiment, dc source is 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 S1, second switch pipe S2, the 3rd switching tube S3And the 4th switch
Pipe S4It is NMOS, NMOS drain electrode is as first switch pipe S1, second switch pipe S2, the 3rd switching tube S3And the 4th switching tube S4
First end, NMOS source electrode is as first switch pipe S1, second switch pipe S2, the 3rd switching tube S3And the 4th switching tube S4's
Second end.
As a kind of preferred embodiment, first switch pipe S1, second switch pipe S2, the 3rd switching tube S3And the 4th switch
Pipe S4It is IGBT, IGBT colelctor electrode is as first switch pipe S1, second switch pipe S2, the 3rd switching tube S3And the 4th switch
Pipe S4First end, IGBT emitter stage is as first switch pipe S1, second switch pipe S2, the 3rd switching tube S3And the 4th switch
Pipe S4The second end.
Specifically, in actual applications, if the electric current in electric power electric transformer is very big, first switch pipe here
S1, second switch pipe S2, the 3rd switching tube S3And the 4th switching tube S4Can also be by NMOS modules in parallel multiple NMOS, or
Person is by IGBT module in parallel multiple IGBT.
In addition, first switch pipe S here1, second switch pipe S2, the 3rd switching tube S3And the 4th switching tube S4Can be with
Other kinds of switching tube is selected, the application is not particularly limited herein, is determined according to actual conditions.
As a kind of preferred embodiment, in addition to：
Output plus terminal and the first electric capacity C1Positive pole connection, output negative terminal and the first electric capacity C1Negative pole connection it is second new
Energy power supply；
Output plus terminal and the 4th electric capacity C4Positive pole connection, output negative terminal and the 4th electric capacity C4Negative pole connection it is the 3rd new
Energy power supply.
Specifically, no matter the dc source in the application is the first new energy power supply or energy-storage battery, there may be
The situation of not enough power supply, based on this, the application can be in the first electric capacity C1Both ends connect the second new energy power supply, the 4th electricity
Hold C4Both ends connect the 3rd New-energy capacitance, when dc source not enough power supply, the second new energy power supply and the 3rd new energy
Power supply come supplement load R needed for energy.
More specifically, in actual applications, when dc source is energy-storage battery, new energy power supply can preferentially be used
Energy, aid in the energy with dc source, save the frequency of use of energy-storage battery, improve energy-storage battery use the longevity
Life.
As a kind of preferred embodiment, the second new energy power supply is the second photovoltaic panel, and the 3rd new energy power supply is the 3rd
Photovoltaic panel.
Certainly, the second new energy power supply and the 3rd new energy power supply here can with but be not limited only to as photovoltaic panel.
As a kind of preferred embodiment, in addition to：
Output plus terminal and the first electric capacity C1Positive pole connection, output negative terminal and the first electric capacity C1Negative pole connection it is first new
Energy source voltage follows module, for following the first electric capacity C1The voltage at both ends；
Output plus terminal and the 4th electric capacity C4Positive pole connection, output negative terminal and the 4th electric capacity C4Negative pole connection it is second new
Energy source voltage follows module, for following the 4th electric capacity C4The voltage at both ends.
Specifically, it is contemplated that be connected to the first electric capacity C1The second new energy power supply at both ends and it is connected to the 4th electric capacity C4Two
End the 3rd new energy power supply be uncontrollable, when weather is good, it is necessary to by control four switching tubes dutycycle
To realize the matching of the energy of dc source, the second new energy power supply and the output of the 3rd new energy power supply and energy needed for load R,
The complexity of control algolithm is added, and in the case of bad weather, can not be realized to the first electric capacity C1With the 4th electric capacity C4's
Voltage follows.
To solve the above problems, the application is in the first electric capacity C1Both ends connect the first new energy voltage follow module, the
Four electric capacity C4Both ends connect the second new energy voltage follow module, so as to be separately implemented to the first electric capacity C1The voltage at both ends and
4th electric capacity C4On the basis of the following of the voltage at both ends, for load R power supplies, due to the first new energy voltage follow module and the
The output voltage of two new energy voltage follow modules is controllable, therefore, the voltage and new energy voltage follow mould of dc source output
The voltage of block output can be separately controlled, and simplify algorithm so that control strategy is more simple；In addition, even disliked in weather
In the case of bad, still realize and load R voltages are followed, meet production needs.
In addition, above-mentioned two new energy voltage follow module can also be storage in dc source in addition to load R power supplies
The energy of energy battery and energy-storage battery charges when being less than preset value for energy-storage battery, realizes the optimum management of energy.
As a kind of preferred embodiment, the first new energy voltage follow module and the second new energy voltage follow module are equal
Including the 4th photovoltaic panel and boost module, the input positive terminal of boost module is connected with the output plus terminal of the 4th photovoltaic panel, and boost mould
The input negative terminal of block is connected with the output negative terminal of the 4th photovoltaic panel, new energy voltage where the output plus terminal of boost module is used as with
With the output plus terminal of module, the output negative terminal of output negative terminal new energy voltage follow module as where of boost module.
Specifically, here the first new energy voltage follow module and the second new energy voltage follow module includes the 4th
Photovoltaic panel and boost module, by realizing the control of the output voltage to new energy voltage follow module to the control of boost module
System.
In addition, the application is used as the input power of boost module using the 4th photovoltaic panel, so as to realize and dc source
It is combined and is powered for load R, reduces the burden of dc source.
Refer to 11, Figure 11 is a kind of structural representation of new energy voltage follow module provided by the invention.
As a kind of preferred embodiment, boost module includes the 5th switching tube S5, the 5th inductance L5With diode D, its
In：
5th inductance L5Input positive terminal of the first end as boost module, the 5th inductance L5The second end respectively with two poles
Pipe D anode and the 5th switching tube S5First end connection, the 5th switching tube S5Input negative terminal of second end as boost module
With output negative terminal, the output plus terminal of diode D negative electrode as boost module.
Specifically, by changing the 5th switching tube S in boost module5Dutycycle realize new energy voltage follow module
To following for the both end voltage of electric capacity.
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 (10)
1. a kind of multiport electric power electric transformer of alternating current-direct current mixing output, it is characterised in that opened including dc source, first
Guan Guan, second switch pipe, the 3rd switching tube, the 4th switching tube, the first inductance, the second inductance, the 3rd inductance, the 4th inductance,
One electric capacity, the second electric capacity, the 3rd electric capacity and the 4th electric capacity, wherein：
The output plus terminal of the dc source connects with the first end of second inductance and the first end of the 3rd inductance respectively
Connect, the second end of second inductance connects with the first end of second electric capacity and the first end of the second switch pipe respectively
Connect, the second end of second electric capacity connects with the first end of first inductance and the second end of the first switch pipe respectively
Connecing, the first end of the first switch pipe is connected with the positive pole of first electric capacity, and its common port is connected with the first end loaded,
Second end of the 3rd inductance is connected with the first end of the 3rd switching tube and the first end of the 3rd electric capacity respectively, institute
The second end for stating the 3rd electric capacity is connected with the first end of the 4th inductance and the second end of the 4th switching tube respectively, described
The first end of 4th switching tube is connected with the positive pole of the 4th electric capacity, and its common port is connected with the second end of the load, institute
State the second end of second switch pipe the second end with the 3rd switching tube, the output negative terminal, described of the dc source respectively
Second end of the first inductance, the negative pole of first electric capacity, the second end of the 4th inductance and the negative pole of the 4th electric capacity
Connection；
The output voltage of the transformerWherein, D2For the dutycycle of the second switch pipe,
D3For the dutycycle of the 3rd switching tube, VdFor the output voltage of the dc source.
2. multiport electric power electric transformer as claimed in claim 1, it is characterised in that the dc source is the first new energy
Source current.
3. multiport electric power electric transformer as claimed in claim 2, it is characterised in that the first new energy power supply is the
One photovoltaic panel.
4. multiport electric power electric transformer as claimed in claim 1, it is characterised in that the dc source is energy storage electricity
Pond.
5. multiport electric power electric transformer as claimed in claim 1, it is characterised in that the first switch pipe, described
Two switching tubes, the 3rd switching tube and the 4th switching tube are NMOS, NMOS drain electrode as the first switch pipe,
The first end of the second switch pipe, the 3rd switching tube and the 4th switching tube, NMOS source electrode is as described first
Switching tube, the second switch pipe, the second end of the 3rd switching tube and the 4th switching tube.
6. the multiport electric power electric transformer as described in claim any one of 1-5, it is characterised in that also include：
Output plus terminal is connected with the positive pole of first electric capacity, export that negative terminal is connected with the negative pole of first electric capacity it is second new
Energy power supply；
Output plus terminal is connected with the positive pole of the 4th electric capacity, export that negative terminal is connected with the negative pole of the 4th electric capacity it is the 3rd new
Energy power supply.
7. multiport electric power electric transformer as claimed in claim 6, it is characterised in that the second new energy power supply is the
Two photovoltaic panels, the 3rd new energy power supply are the 3rd photovoltaic panel.
8. the multiport electric power electric transformer as described in claim any one of 1-5, it is characterised in that also include：
Output plus terminal is connected with the positive pole of first electric capacity, export that negative terminal is connected with the negative pole of first electric capacity it is first new
Energy source voltage follows module, for following the voltage at the first electric capacity both ends；
Output plus terminal is connected with the positive pole of the 4th electric capacity, export that negative terminal is connected with the negative pole of the 4th electric capacity it is second new
Energy source voltage follows module, for following the voltage at the 4th electric capacity both ends.
9. multiport electric power electric transformer as claimed in claim 8, it is characterised in that the first new energy voltage follow
Module and the second new energy voltage follow module include the 4th photovoltaic panel and boost module, the input of the boost module
Anode is connected with the output plus terminal of the 4th photovoltaic panel, and the input negative terminal of the boost module is defeated with the 4th photovoltaic panel
Go out negative terminal connection, the output plus terminal of output plus terminal new energy voltage follow module as where of the boost module, the liter
The output negative terminal of output negative terminal new energy voltage follow module as where of die block.
10. multiport electric power electric transformer as claimed in claim 9, it is characterised in that the boost module includes the 5th
Switching tube, the 5th inductance and diode, wherein：
Input positive terminal of the first end of 5th inductance as the boost module, the second end of the 5th inductance respectively with
The first end of the anode of the diode and the 5th switching tube connects, and the second end of the 5th switching tube is as the liter
The input negative terminal of die block and output negative terminal, the output plus terminal of the negative electrode of the diode as the boost module.
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| CN201710882939.9A CN107612316A (en) | 2017-09-26 | 2017-09-26 | A kind of multiport electric power electric transformer of alternating current-direct current mixing output |
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| CN201710882939.9A CN107612316A (en) | 2017-09-26 | 2017-09-26 | A kind of multiport electric power electric transformer of alternating current-direct current mixing output |
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Application publication date: 20180119 |