CN107612331A - A kind of electric power electric transformer of alternating current-direct current mixing output - Google Patents

A kind of electric power electric transformer of alternating current-direct current mixing output Download PDF

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Publication number
CN107612331A
CN107612331A CN201710883782.1A CN201710883782A CN107612331A CN 107612331 A CN107612331 A CN 107612331A CN 201710883782 A CN201710883782 A CN 201710883782A CN 107612331 A CN107612331 A CN 107612331A
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China
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output
switching tube
electric capacity
switch pipe
electric
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Inventor
张桂东
谢仕宇
王志洋
叶远茂
章云
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Guangdong University of Technology
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Guangdong University of Technology
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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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Abstract

The invention discloses a kind of 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 first electric capacity and the second electric capacity, and the output voltage V of transformer0=D1Vd‑D3Vd, wherein, D1For the dutycycle of first switch pipe, D3For the dutycycle of the 3rd switching tube, VdFor the output voltage of dc source.The alternating current-direct current that the application provides mixes the structures shape of the electric power electric transformer of output, and straight-through phenomenon will not occurs in it, safe；In addition, the application can adjust the output voltage of the transformer by changing the dutycycle of first switch pipe and the 3rd switching tube, the adjustable exchange output of voltage-dropping type or the adjustable direct current output of voltage-dropping type are obtained, it is applied widely, control is simple, efficiency high, and cost is low and small volume；Meanwhile the application includes three output ports, it can be simultaneously multiple load supplyings, meet industrial development demand well.

Description

A kind of electric power electric transformer of alternating current-direct current mixing output
Technical field
The present invention relates to electric and electronic technical field, and the power electronics transformation exported is mixed more particularly to a kind of alternating current-direct current Device.
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 has as a drawback 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) 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.
3) 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 electric power electric transformer of alternating current-direct current mixing output, will not occur straight-through existing As safe；The adjustable exchange output of voltage-dropping type or the adjustable direct current output of voltage-dropping type can be obtained, it is applied widely, Control is simple, efficiency high, and cost is low and small volume；Can be multiple loads simultaneously meanwhile the application includes three output ports Power supply, meets industrial development demand well.
In order to solve the above technical problems, the invention provides a kind of electric power electric transformer of alternating current-direct current mixing output, bag Include dc source, first switch pipe, second switch pipe, the 3rd switching tube, the 4th switching tube, the first inductance, the second inductance, first Electric capacity and the second electric capacity, wherein：
The output plus terminal of the dc source respectively with the second end of the first switch pipe and the 3rd switching tube First end connects, the first end of the first switch pipe respectively with the first end of the second switch pipe and first inductance First end is connected, and the second end of first inductance is connected with the positive pole of first electric capacity, its common port and the first of load End connection, the second end of the 3rd switching tube respectively with the first end of the 4th switching tube and second inductance first End connection, the second end of second inductance are connected with the positive pole of second electric capacity, its common port and the second of the load End connection, the second end output with the second end, the dc source of the 4th switching tube respectively of the second switch pipe The negative pole connection of negative terminal, the negative pole of first electric capacity and second electric capacity；
The output voltage V of the transformer0=D1Vd-D3Vd, wherein, D1For the dutycycle of the first switch pipe, D3For The dutycycle of 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 second electric capacity, exports negative terminal is connected with the negative pole of second 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 second electric capacity, exports negative terminal is connected with the negative pole of second electric capacity Two new energy voltage follow modules, for following the voltage at the second 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 3rd inductance, the 4th inductance, the first diode, the two or two Pole pipe, the 3rd diode and the 4th diode, wherein：
The first end of 3rd inductance is connected with the anode of the 3rd diode, and its common port is as the boosting mould The input positive terminal of block, the second end of the 3rd inductance respectively with the anode of second diode and the 4th diode Anode connects, the negative electrode of the 3rd diode respectively with the first end of the 4th inductance and the negative electrode of the 4th diode Connection, the second end of the 4th inductance negative electrode with second diode, the anode of first diode and institute respectively The first end connection of the 5th switching tube is stated, the output plus terminal of the negative electrode of first diode as the boost module is described Input negative terminal and output negative terminal of second end of the 5th switching tube as the boost module.
The invention provides a kind of 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 first electric capacity and the second electric capacity, and become The output voltage V of depressor0=D1Vd-D3Vd, wherein, D1For the dutycycle of first switch pipe, D3For the dutycycle of the 3rd switching tube, VdFor the output voltage of dc source.
Compared with the structure of existing electric power electric transformer, the power electronics for the alternating current-direct current mixing output that the application provides Straight-through phenomenon will not occurs in it to the structures shape of transformer, safe；In addition, the application can be by changing first switch Manage with the dutycycle of the 3rd switching tube to adjust the output voltage of the transformer, obtain the adjustable exchange output of voltage-dropping type or drop The adjustable direct current output of die mould, applied widely, control is simple, efficiency high, and cost is low and small volume；Meanwhile the application includes Three output ports, 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 electric power electric transformer of alternating current-direct current mixing output provided by the invention；
Fig. 3 is fundamental diagram of the electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode 1；
Fig. 4 is fundamental diagram of the electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode 2；
Fig. 5 is fundamental diagram of the electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode 3；
Fig. 6 is fundamental diagram of the electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode 4；
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 electric power electric transformer of alternating current-direct current mixing output, will not occur straight-through existing As safe；The adjustable exchange output of voltage-dropping type or the adjustable direct current output of voltage-dropping type can be obtained, it is applied widely, Control is simple, efficiency high, and cost is low and small volume；Can be multiple loads simultaneously meanwhile the application includes three output ports Power supply, meets industrial development demand 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 that a kind of structure of the electric power electric transformer of alternating current-direct current mixing output provided by the invention is shown It is intended to, the electric power electric transformer includes dc source, first switch pipe S1, second switch pipe S2, the 3rd switching tube S3, the 4th Switching tube S4, the first inductance L1, the second inductance L2, the first electric capacity C1And the second electric capacity C2, wherein：
The output plus terminal of dc source respectively with first switch pipe S1The second end and the 3rd switching tube S3First end connect Connect, first switch pipe S1First end respectively with second switch pipe S2First end and the first inductance L1First end connection, first Inductance L1The second end and the first electric capacity C1Positive pole connection, its common port with load R first end be connected, the 3rd switching tube S3 The second end respectively with the 4th switching tube S4First end and the second inductance L2First end connection, the second inductance L2The second end With the second electric capacity C2Positive pole connection, its common port with load R the second end be connected, second switch pipe S2The second end respectively with 4th switching tube S4The second end, output negative terminal, the first electric capacity C of dc source1Negative pole and the second electric capacity C2Negative pole connect Connect；
The output voltage V of transformer0=D1Vd-D3Vd, wherein, D1For first switch pipe S1Dutycycle, D3For the 3rd switch Pipe S3Dutycycle, VdFor the output voltage of dc source.
Firstly the need of explanation, the voltage on the load R left sides in Fig. 2 is designated as V by the application1, load the voltage on the right of R It is designated as V2, the voltage V at load R both ends0=V1-V2。
Both ends of the application using the output end of two reduction voltage circuits based on same dc source as load R, by changing The dutycycle of the switching tube become in two reduction voltage circuits adjusts the output of reduction voltage circuit, and then adjusts the voltage at load R both ends, To realize load R different demands.In addition, the structure of the electric power electric transformer for the alternating current-direct current mixing output that the application provides is determined Straight-through phenomenon will not be occurred by having determined it, 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, the electricity of output is mixed to the alternating current-direct current that the application provides below in conjunction with the accompanying drawings The operation principle of power electronic transformer is described：
Fig. 3 is refer to, Fig. 3 is the electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode 1 Fundamental diagram.
When circuit is operated in mode 1, 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 is respectively to the first inductance L1, the first electric capacity C1Charging, and provide energy, while direct current for load R Power supply is respectively to the second inductance L2, the second electric capacity C2Charging, also provide energy for load R.
Fig. 4 is refer to, Fig. 4 is the electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode 2 Fundamental diagram.
When circuit is operated in mode 2, first switch pipe S1, the 3rd switching tube S3Shut-off, second switch pipe S2, the 4th open Close pipe S4It is open-minded, the first inductance L1With the first electric capacity C1Energy, while the second inductance L are provided for load R2With the second electric capacity C2It is negative Carry R and energy is provided.
Fig. 5 is refer to, Fig. 5 is the electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode 3 Fundamental diagram.
When circuit is operated in mode 3, 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 is respectively the first electric capacity C1With the first inductance L1Charging, and provide energy, while second for load R Electric capacity C2With the second inductance L2Energy is provided for load R.
Fig. 6 is refer to, Fig. 6 is the electric power electric transformer of alternating current-direct current provided by the invention mixing output in mode 4 Fundamental diagram.
When circuit is operated in mode 4, 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 electric capacity C2, the second inductance L2Charging, and provide energy, while first for load R Electric capacity C1With the first inductance L1Energy is provided for load R.
It can be seen that conducting feelings of the electric power electric transformer for the alternating current-direct current mixing output that the application provides according to four switching tubes Condition 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 L1With Two inductance L2Voltage be：
Here D is defined1For first switch pipe S1Dutycycle, 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：
V1=D1Vd
V2=D3Vd
Then：
V0=V1-V2=D1Vd-D3Vd
It can be seen that the voltage V at load R both ends0By D1And D3Together decide on, change D1And 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 V0Drop Pressure, exchange output, the output of positive and negative decompression DC being depressured.
To sum up：The electric power electric transformer for the alternating current-direct current mixing output that the application provides can be operated in exchange output and straight Stream two kinds of mode of operations of output.Exchange under output services pattern, by controlling the dutycycle of four switching tubes to load R both ends The direct current biasing of output is identical, and phase of ac signal is on the contrary, so as to the exchange output being depressured；Direct current output mode of operation Under, it is controllable direct current output by controlling the dutycycle of four switching tubes to load R both end voltages, it is positive and negative so as to obtain Controllable decompression DC output.
It should also be noted that, in the electric power electric transformer for the alternating current-direct current mixing output that the application provides, the first electric capacity C1With the second electric capacity C2Both ends also respectively can with load connect.
Wherein, in practical application, here load can be but be not limited only to the battery of mobile phone to charge, the application exists This is not particularly limited.
It can be seen that the electric power electric transformer for the alternating current-direct current mixing output that the application provides is multiport transformer, Neng Goutong When be multiple load supplyings, meet industrial development demand well.
The invention provides a kind of 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 first electric capacity and the second electric capacity, and become The output voltage V of depressor0=D1Vd-D3Vd, wherein, D1For the dutycycle of first switch pipe, D3For the dutycycle of the 3rd switching tube, VdFor the output voltage of dc source.
Compared with the structure of existing electric power electric transformer, the power electronics for the alternating current-direct current mixing output that the application provides Straight-through phenomenon will not occurs in it to the structures shape of transformer, safe；In addition, the application can be by changing first switch Manage with the dutycycle of the 3rd switching tube to adjust the output voltage of the transformer, obtain the adjustable exchange output of voltage-dropping type or drop The adjustable direct current output of die mould, applied widely, control is simple, efficiency high, and cost is low and small volume；Meanwhile the application includes Three output ports, it can be powered simultaneously for multiple load R, 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, new energy accelerate to cultivate as China and The emerging strategic industries of development, the value of new energy is high, and generally possesses regenerative nature, is available for the mankind to continue profit forever With.
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, while photovoltaic panel has and is easy to pacify The advantages that dress, expansion and dismounting.Certainly, the first new energy power supply here can also be other kinds of new energy power supply, example Such as wind power battery plate, the application is 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 transformer is very big, first switch pipe S here1, second open Close pipe S2, the 3rd switching tube S3And the 4th switching tube S4Can also be by NMOS modules in parallel multiple NMOS, or for by multiple IGBT module in parallel 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 second electric capacity C2Positive pole connection, output negative terminal and the second electric capacity C2Negative pole connection it is the 3rd new Energy power supply.
Specifically, no matter dc source is the first new energy power supply or energy-storage battery, it there may be not enough power supply When, based on this, the application can be in the first electric capacity C1Both ends connect the second new energy power supply, in the second electric capacity C2Both ends The 3rd New-energy capacitance is connected, when dc source not enough power supply, the second new energy power supply and the 3rd new energy power supply supplement Load the energy needed for R.
Specifically, in actual applications, when dc source is energy-storage battery, the energy of new energy power supply can preferentially be used Amount, aids in the energy with dc source, saves the frequency of use of energy-storage battery, improve the service life of energy-storage battery.
More specifically, it is contemplated that traditional vehicle-mounted power socket interface, only direct current output, and can not realize preferably Amplitude is adjusted, and to realize AC frequency conversion transformation, is typically necessary increase multi-level inverter；To realize direct current voltage reulation, it is necessary in addition DC converter.To solve the above problems, when dc source is energy-storage battery, the electricity of the alternating current-direct current mixing output of the application Power electronic transformer can apply to the socket circuit of mobile unit.It is not only simple in structure, cost is relatively low, and stability is high, and The efficient ac variable-frequency variable-voltage of multiport, positive and negative DC decompression output can be realized on the basis of single-stage converter.In addition, When energy-storage battery not enough power supply, energy-storage battery from the second new energy power supply and the 3rd new energy power supply except that can obtain electricity It can charge, the electric energy of feedback can be also obtained from automobile kind.
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 second electric capacity C2Positive pole connection, output negative terminal and the second electric capacity C2Negative pole connection it is second new Energy source voltage follows module, for following the second electric capacity C2The 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 second electric capacity C2Two 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 second electric capacity C2'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 Two electric capacity C2Both 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 Second electric capacity C2On 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 3rd inductance L3, the 4th inductance L4, One diode D1, the second diode D2, the 3rd diode D3With the 4th diode D4, wherein：
3rd inductance L3First end and the 3rd diode D3Anode connection, input of its common port as boost module Anode, the 3rd inductance L3The second end respectively with the second diode D2Anode and the 4th diode D4Anode connection, the three or two Pole pipe D3Negative electrode respectively with the 4th inductance L4First end and the 4th diode D4Negative electrode connection, the 4th inductance L4Second End respectively with the second diode D2Negative electrode, the first diode D1Anode and the 5th switching tube S5First end connection, the one or two Pole pipe D1Output plus terminal of the negative electrode as boost module, the 5th switching tube S5Input negative terminal of second end as boost module With output negative terminal.
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 1. electric power electric transformer of alternating current-direct current mixing output, it is characterised in that including dc source, first switch pipe, Second switch pipe, the 3rd switching tube, the 4th switching tube, the first inductance, the second inductance, the first electric capacity and the second electric capacity, wherein：
    The output plus terminal of the dc source respectively with the second end of the first switch pipe and the 3rd switching tube first End connection, the first end of the first switch pipe respectively with the first end of the second switch pipe and first inductance first End connection, the second end of first inductance are connected with the positive pole of first electric capacity, and its common port and the first end of load connect Connect, the second end of the 3rd switching tube connects with the first end of the 4th switching tube and the first end of second inductance respectively Connect, the second end of second inductance is connected with the positive pole of second electric capacity, and its common port and the second end of the load connect Connect, the second end of the second switch pipe respectively the second end with the 4th switching tube, the dc source output negative terminal, The negative pole of the negative pole of first electric capacity and second electric capacity connects；
    The output voltage V of the transformer0=D1Vd-D3Vd, wherein, D1For the dutycycle of the first switch pipe, D3For described The dutycycle of three switching tubes, VdFor the output voltage of the dc source.
  2. 2. the electric power electric transformer of alternating current-direct current mixing output as claimed in claim 1, it is characterised in that the dc source For the first new energy power supply.
  3. 3. the electric power electric transformer of alternating current-direct current mixing output as claimed in claim 2, it is characterised in that the first new energy Source current is the first photovoltaic panel.
  4. 4. the electric power electric transformer of alternating current-direct current mixing output as claimed in claim 1, it is characterised in that the dc source For energy-storage battery.
  5. 5. the electric power electric transformer of alternating current-direct current mixing output as claimed in claim 1, it is characterised in that the first switch Pipe, the second switch pipe, the 3rd switching tube and the 4th switching tube are NMOS, and NMOS drain electrode is as described One switching tube, the second switch pipe, the first end of the 3rd switching tube and the 4th switching tube, NMOS source electrode conduct The first switch pipe, the second switch pipe, the second end of the 3rd switching tube and the 4th switching tube.
  6. 6. the electric power electric transformer of the alternating current-direct current mixing output as described in claim any one of 1-5, it is characterised in that also wrap 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 second electric capacity, export that negative terminal is connected with the negative pole of second electric capacity it is the 3rd new Energy power supply.
  7. 7. the electric power electric transformer of alternating current-direct current mixing output as claimed in claim 6, it is characterised in that the second new energy Source current is the second photovoltaic panel, and the 3rd new energy power supply is the 3rd photovoltaic panel.
  8. 8. the electric power electric transformer of the alternating current-direct current mixing output as described in claim any one of 1-5, it is characterised in that also wrap 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 second electric capacity, export that negative terminal is connected with the negative pole of second electric capacity it is second new Energy source voltage follows module, for following the voltage at the second electric capacity both ends.
  9. 9. the electric power electric transformer of alternating current-direct current mixing output as claimed in claim 8, it is characterised in that the first new energy Source voltage follow module and the second new energy voltage follow module include the 4th photovoltaic panel and boost module, the boosting The input positive terminal of module is connected with the output plus terminal of the 4th photovoltaic panel, the input negative terminal of the boost module and the described 4th The output negative terminal connection of photovoltaic panel, the output of output plus terminal new energy voltage follow module as where of the boost module is just End, the output negative terminal of output negative terminal new energy voltage follow module as where of the boost module.
  10. 10. the electric power electric transformer of alternating current-direct current mixing output as claimed in claim 9, it is characterised in that the boosting mould Block includes the 5th switching tube, the 3rd inductance, the 4th inductance, the first diode, the second diode, the 3rd diode and the four or two pole Pipe, wherein：
    The first end of 3rd inductance is connected with the anode of the 3rd diode, and its common port is as the boost module Input positive terminal, the second end of the 3rd inductance respectively with the anode of second diode and the anode of the 4th diode Connection, the negative electrode of the 3rd diode connect with the first end of the 4th inductance and the negative electrode of the 4th diode respectively Connect, the second end of the 4th inductance negative electrode with second diode, the anode of first diode and described respectively The first end connection of 5th switching tube, the output plus terminal of the negative electrode of first diode as the boost module, described the Input negative terminal and output negative terminal of second end of five switching tubes as the boost module.
CN201710883782.1A 2017-09-26 2017-09-26 A kind of electric power electric transformer of alternating current-direct current mixing output Pending CN107612331A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102594189A (en) * 2012-03-05 2012-07-18 南京理工大学 Non-isolated direct-current converter type differential three-level inverter
CN106828365A (en) * 2016-11-28 2017-06-13 德阳九鼎智远知识产权运营有限公司 A kind of electric automobile fuel battery electric power system
CN106887966A (en) * 2017-04-26 2017-06-23 合肥工业大学 Differential type buck single-phase inverter and its power decoupled method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102594189A (en) * 2012-03-05 2012-07-18 南京理工大学 Non-isolated direct-current converter type differential three-level inverter
CN106828365A (en) * 2016-11-28 2017-06-13 德阳九鼎智远知识产权运营有限公司 A kind of electric automobile fuel battery electric power system
CN106887966A (en) * 2017-04-26 2017-06-23 合肥工业大学 Differential type buck single-phase inverter and its power decoupled method

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
KAZI KHURSHIDI HAQUE DIA ET AL.: "A Single Phase Differential Zeta Rectifier-Inverter", 《2015 IEEE INTERNATIONAL WIE CONFERENCE ON ELECTRICAL AND COMPUTER ENGINEERING (WIECON-ECE)》 *
NENG ZHANG ET AL.: "A Buck-Boost Converter Based Multi-Input", 《2016 IEEE INTERNATIONAL CONFERENCE ON POWER SYSTEM TECHNOLOGY (POWERCON)》 *
P.NAGALAKSHMI KANNA ET AL.: "Analysis and Design of DC-DC/AC NonIsolated Cuk Converter using Sliding Mode Controller", 《2015 INTERNATIONAL CONFERENCE ON CIRCUIT, POWER AND COMPUTING TECHNOLOGIES [ICCPCT]》 *
SAEED DANYALI ET AL.: "New Extendable Single-Stage Multi-input DC-DC/AC Boost Converter", 《IEEE TRANSACTIONS ON POWER ELECTRONTCS》 *
陈江等: "一种基于滑模控制的正弦波逆变器", 《电源技术应用》 *

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Application publication date: 20180119