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CN106685218B - There is the single tube high-gain DC voltage increase translation circuit of additional potential superposition output - Google Patents

There is the single tube high-gain DC voltage increase translation circuit of additional potential superposition output Download PDF

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Publication number
CN106685218B
CN106685218B CN201710197823.1A CN201710197823A CN106685218B CN 106685218 B CN106685218 B CN 106685218B CN 201710197823 A CN201710197823 A CN 201710197823A CN 106685218 B CN106685218 B CN 106685218B
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diode
voltage
output
gain
translation circuit
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CN106685218A (en
Inventor
陈荣
顾春雷
杨晓冬
陈冲
王银杰
白雪飞
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Dongtai Chengdong Science And Technology Pioneer Park Management Co ltd
Dongtai Tepusong Machinery Equipment Co ltd
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Yangcheng Institute of Technology
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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
    • 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
    • H02M3/06—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider
    • H02M3/07—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode, e.g. charge pumps

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

The invention discloses the single tube high-gain DC voltage increase translation circuits for having additional potential superposition output, belong to power transformation circuit technical field, the circuit is controlled by the high-gain Lifting Transform that single switching transistor implements DC voltage, in opening, in turn off process for switching tube, auxiliary capacitor forms additional potential by parallel induction charging, electric discharge is formed by pumping voltage and additional potential and connects powering load along polarity after the charging of boost inductance element in circuit, and input dc power pressure is promoted；The charging of boost inductance element and parallel inductance element, self-induction electromotive force and the state conversion by the capacitance voltage of parallel induction charging along polarity discharged in series of boost inductance are controlled by single switching transistor, obtain the output voltage gain more much higher than single-stage boost chopper translation circuit；Circuit control mode of the invention simultaneously is simple, and circuit transmits the high-efficient of power.

Description

There is the single tube high-gain DC voltage increase translation circuit of additional potential superposition output
Technical field
The invention belongs to power transformation circuit technical fields, and in particular to have the single tube high-gain of additional potential superposition output DC voltage Lifting Transform circuit.
Background technique
With the development of economy and society, the negative effect of the aggravation of energy demand anxiety, fossil energy is prominent, wind energy with too The grid-connected power generation systems such as positive energy are vigorously developed, and the application that gradually puts it over.But in practical applications, wind speed, illumination, gas The influence of the enchancement factors such as time, constrains the extensive use of grid-connected power generation system.Wind energy, device of solar generating how is allowed to exist Stable electric energy is generated in the case of the changes in environmental conditions such as wind-force, illumination, weather, be grid-connected power generation system must be taken into consideration because Element.
In photovoltaic power generation, substantially effectively to use luminous energy in illumination variation, provided to subsequent load stable straight Galvanic electricity pressure needs to configure DC boosting translation circuit, and photocell output voltage is adjusted to suitable voltage range, is implemented simultaneously Maximal power tracing (MPPT) control.Equally, directly-driving wind power generation system output voltage changes with wind speed, before implementing inversion, It must make the voltage-controlled system of inverter input dc power in the appropriate range, it is contemplated that electricity generation system wishes its output under any wind regime Maximum power, it is also desirable to implement MPPT control.Therefore, in renewable energy system, boost conversion circuit obtains extensive Using.
Boost translation circuit is the typical circuit of DC boosting transformation, and in actual moving process, step-up ratio is little, In photovoltaic generating system, the application of Boost translation circuit is restricted, and it is unfavorable to apply to photovoltaic generating system, is needed to configure The boost conversion circuit of high-gain.
Summary of the invention
Goal of the invention: the purpose of the present invention is to provide have the single tube high-gain DC voltage of additional potential superposition output to mention Translation circuit is risen, implements the Lifting Transform control of DC voltage, obtains the output more much higher than single-stage boost chopper translation circuit Voltage gain, circuit structure is simple, easy to control, high-efficient.
Technical solution: for achieving the above object, the present invention adopts the following technical scheme:
The single tube high-gain DC voltage increase translation circuit of additional potential superposition output, including power supply E, power supply E is just End and boost inductance L1One end and the second diode D2Anode is respectively connected with, the negative terminal and switch transistor T emitter of power supply E, output Load capacitance CoCathode, load impedance R cold end are respectively connected with；The second diode D2Cathode and third diode D3 Cathode, auxiliary induction L2One end be respectively connected with；The boost inductance L1The other end and third diode D3Anode, 4th diode D4Anode, auxiliary capacitor C1Cold end be respectively connected with；The auxiliary capacitor C1Hot end and Six diode D6Cathode, first diode D1Anode be respectively connected with；The auxiliary induction L2The other end and the five or two pole Pipe D5Anode, the 6th diode D6Anode be respectively connected with；The 5th diode D5Cathode and the 4th diode D4's Cathode, switch transistor T collector are respectively connected with；The first diode D1Cathode and output load capacitance CoAnode, load resistance Anti- R hot end is respectively connected with.
The configuration switch pipe T duty cycle is Ts, the turn-on time of switching tube is t in the duty cycleon, then duty ratio be
Auxiliary capacitor C1The voltage at both ends:
Output load capacitance CoThe voltage at both ends:Set translation circuit need to convert maximum power as PMax, converter input current maximum value: IMax=PMax/ E, f are switch controlled frequency, IMaxFor inductive current maximum value, then:
Inductive current nominal parameter: IL1e=IL2e=(1.1:1.2) IMax；
Inductance parameters:
Switch transistor T flows through inductive current when opening, and switch transistor T electric current is by norm according to the 1.2- of inductive current maximum value 1.5 times of selections, switch transistor T voltage rating are taken as its practical 1.5-2.0 times for bearing voltage, then:
Switch transistor T electric current quota: ITe=(1.2:1.5) IMax；
Switch transistor T voltage rating:
The first diode D1, the second diode D2, third diode D3, the 4th diode D4, the 5th diode D5、 6th diode D6Electric current quota according to inductive current maximum value IMax1.2-1.5 times select；Voltage quota is according to its reality 1.5-2.0 times of the voltage born selects, then:
Electric current quota: ID1e=ID2e=ID3e=ID4e=ID5e=ID6e=(1.2:1.5) IMax；
Voltage quota:
UD3e=(1.5:2.0) E；
The auxiliary capacitor C1, output load capacitance CoVoltage rating practical bear 1.5-2.0 times of voltage according to it It chooses, then:
Auxiliary capacitor C1Voltage rating:
Output load capacitance CoVoltage rating:
For the pulsation scope control of initialization circuit output voltage within the 10% of stationary value, R is converter output loading etc. Imitate resistance, TsFor the switch controlled period, then:
Output load capacitance:
Auxiliary capacitor:
The utility model has the advantages that compared with prior art, the single tube high-gain DC voltage of additional potential superposition output of the invention Lifting Transform circuit, the pumping voltage by inductance element are connected along polarity to negative with the auxiliary capacitor voltage by parallel induction charging Power supply is carried, input dc power pressure is promoted；Filling for boost inductance element and parallel inductance element is controlled by single switching transistor Electricity, boost inductance electric discharge and the state by the capacitance voltage of parallel induction charging along polarity discharged in series are converted, and single-stage is compared in acquisition The much higher output voltage gain of boost chopper translation circuit；Circuit control mode of the invention simultaneously is simple, and circuit transmits function Rate it is high-efficient.
Detailed description of the invention
Fig. 1 is the single tube high-gain DC voltage conversion circuit for having additional potential superposition output；
Fig. 2 is circuit operation when switching tube is opened；
Circuit operation when Fig. 3 is switching tube shutdown；
Figure compared with the converter of Fig. 4 the application boosts multiple with Boost.
Specific embodiment
The present invention is described further with specific implementation example with reference to the accompanying drawing.
It should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention, this hair is being read After bright, those skilled in the art fall within the application appended claims to the modification of various equivalent forms of the invention and are limited Fixed range.
The single tube high-gain DC voltage increase translation circuit of additional potential superposition output, including power supply E, boost inductance L1, auxiliary induction L2, first diode D1, the second diode D2, third diode D3, the 4th diode D4, the 5th diode D5、 6th diode D6, switch transistor T, output load capacitance Co, auxiliary capacitor C1, load impedance R.
The anode and boost inductance L of power supply E1One end and the second diode D2Anode is respectively connected with, the negative terminal of power supply E with Switch transistor T emitter, output load capacitance CoCathode, load impedance R cold end are respectively connected with；Second diode D2Cathode with Third diode D3Cathode, auxiliary induction L2One end be respectively connected with；Boost inductance L1The other end and third diode D3's Anode, the 4th diode D4Anode, auxiliary capacitor C1Cold end be respectively connected with；Auxiliary capacitor C1Hot end and Six diode D6Cathode, first diode D1Anode be respectively connected with；Auxiliary induction L2The other end and the 5th diode D5's Anode, the 6th diode D6Anode be respectively connected with；5th diode D5Cathode and the 4th diode D4Cathode, switch transistor T Collector is respectively connected with；First diode D1Cathode and output load capacitance CoAnode, load impedance R hot end distinguish phase Even.
The configuration switch pipe T duty cycle is Ts, the turn-on time of switching tube is t in the duty cycleon, then duty ratio be
It with the opening of switching tube, turns off, in auxiliary capacitor C1The upper potential for forming the right left "-" of "+", in translation circuit work During work, which is not involved in the excitation to the boost inductance of translation circuit, but in switching tube shutdown and inductance boost electricity The self-induction electromotive force of sense transmits energy to load together, is regarded as additional potential.
(1) when switching tube is opened, circuit operation is as shown in Figure 2.
Under circuit stability working condition, auxiliary capacitor C1The voltage U at both endsc1For right " just " left side " negative ".Observe circuit, switch When pipe is opened, boost inductance L1Electric current i1Circulation path are as follows: power supply "+" → L1→D4→ T → power supply "-", according to kirchhoff Law has equation:
Under supply voltage effect, boost inductance L1Electric current i1It is stepped up, boost inductance L1On self-induction electromotive force pole Property for left " just " right side " negative ".
Auxiliary induction L2Electric current i2Circulation path are as follows: power supply "+" → D2→L2→D5→ T → power supply "-", suddenly according to Kiel Husband's law has equation:
Under supply voltage effect, auxiliary induction L2Electric current i2It is stepped up, auxiliary induction L2On self-induction electromotive force pole Property for left " just " right side " negative ".
In the process, first diode D1, third diode D3, the 6th diode D6It bears backward voltage and ends, it is defeated Voltage is by output load capacitance C outoElectric discharge maintains.
(2) when switching tube turns off, circuit operation is as shown in Figure 3.
When switch transistor T turns off, inductive current i1、i2Continue to circulate, boost inductance L1, auxiliary induction L2Upper formation from Induction electric important and influential persons maintains i1、i2Lasting circulation, polarity are right " just " left side " negative ".
Inductive current i1Circulation path are as follows: power supply "+" → L1→C1→D1→ load → power supply "-" end, suddenly according to Kiel Husband's law has equation:
At this point, supply voltage, auxiliary capacitor C1On voltage, inductance the common powering load of self-induction electromotive force, electricity Inducing current i1Decline.
Inductive current i2Circulation path are as follows: D3Cathode → L2→D6→C1→D3Anode, according to the Kirchhoff's law side of having Journey:
Auxiliary induction L2Electric energy is transmitted to auxiliary capacitor, forms additional potential, inductive current i2Decline.
It can be obtained by formula (1)~(4):
Auxiliary capacitor C1The voltage at both ends:
Output load capacitance CoThe voltage at both ends:
According to relationship determined by (5) formula, referring to the step-up ratio of Boost translation circuitIn change in duty cycle situation Lower two kinds of circuit output voltage multiples such as table 1.
1 this case translation circuit of table and Boost translation circuit output voltage multiple
Duty ratio 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9
Boost circuit exports multiple 1.0 1.1 1.3 1.4 1.7 2.0 2.5 3.3 5.0 10.0
This case translation circuit exports multiple 1.0 1.2 1.5 1.86 2.33 3.0 4.0 5.7 9.0 19.0
It is also seen that boost conversion circuit of the invention has higher step-up ratio, relatively high voltage increase can be obtained Gain.
Therefore, translation circuit of the present invention obtains higher voltage increase gain, and output voltage boosting is bigger.Fig. 4 is this The voltage increase times number curve of case translation circuit and Boost circuit.
The component parameters of translation circuit select
(1) energy storage inductor: boost inductance L1, auxiliary induction L2Electric current quota and inductance parameters
In the translation circuit course of work, the inductance value L of inductance element is bigger in converter, and input current is more stable, but The volume of element will increase, and the cost of circuit will increase.
If translation circuit needs to convert maximum power into PMax, converter input current maximum value: IMax=PMax/ E, then it is electric Just suitably there are certain surpluses to be given based on this for inducing current nominal parameter.F is switch controlled frequency, IMaxFor Inductive current maximum value.
Inductive current nominal parameter: IL1e=IL2e=(1.1:1.2) IMax；
Consider that inductive current pulsation control the 10% of maximum value, can obtain inductance parameters.
Inductance parameters:
(2) switch transistor T
Since switch transistor T flows through inductive current when opening, switch transistor T electric current quota is according to inductive current maximum value 1.2-1.5 times selects.When switch transistor T shutdown, the born voltage of switch transistor T theoretically reaches supply voltageTimes, Therefore, switch transistor T voltage rating is taken as its practical 1.5-2.0 times for bearing voltage.
Switch transistor T electric current quota: ITe=(1.2:1.5) IMax；
Switch transistor T voltage rating:
(3) first diode D1, the second diode D2, third diode D3, the 4th diode D4, the 5th diode D5, Six diode D6
The second diode D in translation circuit2, the 4th diode D4, the 5th diode D5In switch transistor T opening process Flow through inductive current, first diode D1, third diode D3, the 6th diode D6Inductance is flowed through in switch transistor T turn off process Electric current, therefore, first diode D1, the second diode D2, third diode D3, the 4th diode D4, the 5th diode D5, the 6th Diode D6Electric current quota according to inductive current maximum value IMax1.2-1.5 times select.Voltage quota is actually held according to it 1.5-2.0 times of the voltage received selects.
Electric current quota: ID1e=ID2e=ID3e=ID4e=ID5e=ID6e=(1.2:1.5) IMax；
Voltage quota:
UD3e=(1.5:2.0) E；
(4) auxiliary capacitor C1, output load capacitance Co
In translation circuit, auxiliary capacitor C1, output load capacitance CoBigger, the holding capacity of circuit voltage is stronger, but capacity Mean that the volume of circuit increases greatly, increased costs.Their voltage rating is selected according to its practical 1.5-2.0 times for bearing voltage It takes.
Auxiliary capacitor C1Voltage rating:
Output load capacitance CoVoltage rating:
If the pulsation scope control of circuit output voltage is within the 10% of stationary value, converter output load capacitance, auxiliary Capacitor is helped to choose according to the following formula.R is converter output loading equivalent resistance, then:
Output load capacitance:
Auxiliary capacitor:

Claims (7)

1. there is the single tube high-gain DC voltage increase translation circuit of additional potential superposition output, it is characterised in that: including power supply The anode and boost inductance L of E, power supply E1One end and the second diode D2Anode is respectively connected with, the negative terminal and switch transistor T of power supply E Emitter, output load capacitance CoCathode, load impedance R cold end are respectively connected with；The second diode D2Cathode and Three diode D3Cathode, auxiliary induction L2One end be respectively connected with；The boost inductance L1The other end and third diode D3Anode, the 4th diode D4Anode, auxiliary capacitor C1Cold end be respectively connected with；The auxiliary capacitor C1Height Potential end and the 6th diode D6Cathode, first diode D1Anode be respectively connected with；The auxiliary induction L2The other end With the 5th diode D5Anode, the 6th diode D6Anode be respectively connected with；The 5th diode D5Cathode and the 4th Diode D4Cathode, switch transistor T collector is respectively connected with；The first diode D1Cathode and output load capacitance Co Anode, load impedance R hot end are respectively connected with.
2. the single tube high-gain DC voltage increase translation circuit according to claim 1 for having additional potential superposition output, It is characterized by: the configuration switch pipe T duty cycle is Ts, the turn-on time of switching tube is t in the duty cycleon, then duty ratio be
Auxiliary capacitor C1The average voltage at both ends:
Output load capacitance CoThe average voltage at both ends:
3. the single tube high-gain DC voltage increase translation circuit according to claim 2 for having additional potential superposition output, It is characterized by: setting translation circuit needs to convert maximum power into PMax, converter input current maximum value: IMax=PMax/ E, F is switch controlled frequency, IMaxFor inductive current maximum value, then:
Inductive current nominal parameter: IL1e=IL2e=(1.1:1.2) IMax；
Inductance parameters:
4. the single tube high-gain DC voltage increase translation circuit according to claim 3 for having additional potential superposition output, It is characterized by: switch transistor T flows through inductive current when opening, switch transistor T rated current is according to inductive current maximum value 1.2-1.5 times selects, and switch transistor T voltage rating is taken as its practical 1.5-2.0 times for bearing voltage, then:
Switch transistor T rated current: ITe=(1.2:1.5) IMax；
Switch transistor T voltage rating:
5. the single tube high-gain DC voltage increase translation circuit according to claim 3 for having additional potential superposition output, It is characterized by: the first diode D1, the second diode D2, third diode D3, the 4th diode D4, the five or two pole Pipe D5, the 6th diode D6Rated current according to inductive current maximum value IMax1.2-1.5 times select；Voltage rating is according to it Practical 1.5-2.0 times of voltage born selects, then:
Rated current: ID1e=ID2e=ID3e=ID4e=ID5e=ID6e=(1.2:1.5) IMax；
Voltage rating:
UD3e=(1.5:2.0) E；
6. the single tube high-gain DC voltage increase translation circuit according to claim 3 for having additional potential superposition output, It is characterized by: the auxiliary capacitor C1, output load capacitance CoVoltage rating according to its it is practical bear voltage 1.5- 2.0 times of selections, then:
Auxiliary capacitor C1Voltage rating:
Output load capacitance CoVoltage rating:
7. the single tube high-gain DC voltage increase translation circuit according to claim 3 for having additional potential superposition output, It is characterized by: the pulsation scope control of initialization circuit output voltage, within the 10% of stationary value, R is converter output loading Equivalent resistance, then:
Output load capacitance:
Auxiliary capacitor:
CN201710197823.1A 2017-03-29 2017-03-29 There is the single tube high-gain DC voltage increase translation circuit of additional potential superposition output Active CN106685218B (en)

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CN110739851B (en) * 2019-11-15 2021-04-06 盐城工学院 High-gain direct-current voltage conversion circuit based on superposition output

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JPS61277367A (en) * 1985-05-20 1986-12-08 Fujitsu Ltd Boosting type dc/dc converter
US7233507B2 (en) * 2005-05-18 2007-06-19 Optimum Power Conversion, Inc. Non dissipative snubber circuit with saturable reactor
CN102364852B (en) * 2011-10-24 2014-06-18 杭州浙阳电气有限公司 Single switching tube high-grain converter based on coupling inductance voltage-multiplying unit
CN102594134A (en) * 2012-04-05 2012-07-18 安徽工业大学 Single-switch and high-gain BOOST converter
CN204442176U (en) * 2015-03-12 2015-07-01 华南理工大学 A kind of switched inductors type accurate Z source DC-DC converter circuit

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Assignor: Dongtai Chengdong science and Technology Pioneer Park Management Co.,Ltd.

Contract record no.: X2024980008872

Denomination of invention: Single tube high gain DC voltage boosting conversion circuit with additional potential superposition output

Granted publication date: 20190115

License type: Common License

Record date: 20240704

EE01 Entry into force of recordation of patent licensing contract
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20170517

Assignee: Dongtai Expedition New Building Materials Co.,Ltd.

Assignor: Dongtai Chengdong science and Technology Pioneer Park Management Co.,Ltd.

Contract record no.: X2024980012644

Denomination of invention: Single tube high gain DC voltage boosting conversion circuit with additional potential superposition output

Granted publication date: 20190115

License type: Common License

Record date: 20240821

EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20170517

Assignee: Yancheng Zhenglong electric heating technology Co.,Ltd.

Assignor: Dongtai Chengdong science and Technology Pioneer Park Management Co.,Ltd.

Contract record no.: X2024980012864

Denomination of invention: Single tube high gain DC voltage boosting conversion circuit with additional potential superposition output

Granted publication date: 20190115

License type: Common License

Record date: 20240823

Application publication date: 20170517

Assignee: DONGTAI LYVHUA PLASTIC WOOD TECHNOLOGY Co.,Ltd.

Assignor: Dongtai Chengdong science and Technology Pioneer Park Management Co.,Ltd.

Contract record no.: X2024980012821

Denomination of invention: Single tube high gain DC voltage boosting conversion circuit with additional potential superposition output

Granted publication date: 20190115

License type: Common License

Record date: 20240823

Application publication date: 20170517

Assignee: Dongtai Hongsheng Magnetic Industry Co.,Ltd.

Assignor: Dongtai Chengdong science and Technology Pioneer Park Management Co.,Ltd.

Contract record no.: X2024980012815

Denomination of invention: Single tube high gain DC voltage boosting conversion circuit with additional potential superposition output

Granted publication date: 20190115

License type: Common License

Record date: 20240823

EE01 Entry into force of recordation of patent licensing contract