CN103457460A - High-gain boost converter based on coupling inductance and voltage transfer technology - Google Patents
High-gain boost converter based on coupling inductance and voltage transfer technology Download PDFInfo
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Abstract
本发明公开了一种基于耦合电感和电压转移技术的高增益升压变换器，包括依次连接的不对称交错并联Boost电路、电压转移单元电路、倍压单元电路及输出单元电路；所述不对称交错并联Boost电路包括第一开关管、第二开关管、第一二极管、第一耦合电感的原边绕组、第二耦合电感的原边绕组；所述电压转移单元电路包括第一电容，第四电容和第二二极管；所述倍压单元电路包括第一耦合电感的副边绕组、第二耦合电感的副边绕组、第二电容、第三二极管；所述输出单元电路包括第四二极管、第三电容和负载。本发明降低了变换器工作时的开关损耗，有利于提高变换器的功率等级。
The invention discloses a high-gain boost converter based on coupled inductance and voltage transfer technology, which comprises sequentially connected asymmetric interleaved parallel Boost circuits, voltage transfer unit circuits, voltage doubler unit circuits and output unit circuits; the asymmetric The interleaved parallel boost circuit includes a first switch tube, a second switch tube, a first diode, a primary winding of a first coupled inductor, and a primary winding of a second coupled inductor; the voltage transfer unit circuit includes a first capacitor, The fourth capacitor and the second diode; the voltage doubler unit circuit includes a secondary winding of the first coupled inductor, a secondary winding of the second coupled inductor, a second capacitor, and a third diode; the output unit circuit Including the fourth diode, the third capacitor and the load. The invention reduces the switching loss when the converter works, and is beneficial to improve the power level of the converter.
Description
Technical field
The present invention relates to the converters technical field, be specifically related to a kind of high-gain boost converter based on coupling inductance and voltage transfer technology.
Background technology
In solar power system or fuel cell system, what provide due to monolithic solar cell or single fuel cell is all the direct current that voltage is lower, and in practical application, required voltage is usually higher, therefore need the booster converter of one-level high efficiency, low input current ripple, high-gain, stable performance low voltage and direct current to be converted to the high voltage direct current that is applicable to actual needs.
At present the most frequently used booster converter is single tube Boost converter, yet the scope of boosting of this converter is very limited, usually boosts multiple all in ten times, is difficult to meet the conversion requirement of high-gain.Although the gain that the single tube high-gain converter that utilizes the coupling inductance technology to realize can improve converter, the input current ripple is larger.Utilize interleaving technique can reduce the input current ripple and still can not realize the expansion of transducer gain.For realizing the gain expansion, can also use switched capacitor technique, this technology circuit is simple in structure, easily realizes, impacts greatly the shortcoming that voltage gain is limited but exist the switching tube current spike.Although can further expand the voltage gain of converter by the multiple-pole switch capacitance structure, it is very complicated that circuit structure can become.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art, a kind of high-gain boost converter based on coupling inductance and voltage transfer technology is provided.
The present invention is applicable to the occasion that photovoltaic system, fuel cell system, energy-recuperation system etc. need to be used high-gain high-performance electric power electronic converter.
The present invention is achieved through the following technical solutions:
A kind of high-gain boost converter based on coupling inductance and voltage transfer technology, comprise the asymmetric interlaced connected successively Boost circuit in parallel, voltage transfer element circuit, voltage doubling unit circuit and output unit circuit;
Described asymmetric interlaced Boost circuit in parallel comprises the first switching tube S
1, second switch pipe S
2, the first diode D
1, the first coupling inductance former limit winding L
11, the second coupling inductance former limit winding L
21;
Described voltage transfer element circuit comprises the first capacitor C
1, the 4th capacitor C
4with the second diode D
2;
Described voltage doubling unit circuit comprises the secondary winding L of the first coupling inductance
12, the second coupling inductance the secondary winding L
22, the second capacitor C
2, the 3rd diode D
3;
Described output unit circuit comprises the 4th diode D
4, the 3rd capacitor C
3with load R.
The former limit winding L of described the first coupling inductance
11same Name of Ends, the former limit winding L of the second coupling inductance
21same Name of Ends with the positive pole of input power, be connected; The former limit winding L of described the first coupling inductance
11the different name end respectively with second switch pipe S
2drain electrode, the first diode D
1anodic bonding;
The former limit winding L of described the second coupling inductance
21the different name end respectively with drain electrode, the first capacitor C of the first switching tube S1
1an end connect;
Described the first switching tube S
1source electrode, second switch pipe S
2source electrode with the negative pole of input power, be connected; Described the first capacitor C
1the other end respectively with the first diode D
1negative electrode, the second diode D
2anodic bonding;
Described the 4th capacitor C
4an end respectively with the second diode D
2negative electrode, the 3rd diode D
3anode, the secondary winding L of the first coupling inductance
12same Name of Ends connect;
The secondary winding L of described the first coupling inductance
12the different name end and the secondary winding L of the second coupling inductance
22the different name end connect; The secondary winding L of described the second coupling inductance
22same Name of Ends and the second capacitor C
2an end connect; Described the second capacitor C
2the other end respectively with the 3rd diode D
3negative electrode, the 4th diode D
4anodic bonding;
Described the 4th diode D
4negative electrode respectively with the 3rd capacitor C
3an end, the end of load R connects;
Described the 3rd capacitor C
3the other end, the other end of load R with the negative pole of input power, be connected;
Described the 4th capacitor C
4the other end be connected with the negative pole of input power or be connected with the positive pole of input power or with the 4th diode D
4negative electrode connect.
Compared with prior art the present invention has following advantage:
During converter of the present invention work, utilize coupling inductance and the second electric capacity to realize the expansion of voltage gain, utilize the leakage inductance of coupling inductance to realize the zero-current switching of switching tube zero current turning-on and diode, the switching loss while having reduced converter work;
Utilize the first electric capacity, the 4th electric capacity and the second diode to realize that the voltage transfer technology further improves the converter voltage gain, limited the voltage stress that switching tube bears, and recovery leakage inductance energy, utilize asymmetric Boost circuit to reduce the ripple of input current, and reduced the current stress that switching tube bears, reduce conduction loss when converter is worked, be conducive to improve the power grade of converter.
The accompanying drawing explanation
Fig. 1 is the circuit diagram of a kind of high-gain boost converter based on coupling inductance and voltage transfer technology of the embodiment of the present invention 1;
Fig. 2 (a)～Fig. 2 (h) is the operation mode figure of circuit diagram shown in Fig. 1 in a switch periods.Wherein Fig. 2 (a) is the circuit diagram of operation mode 1, Fig. 2 (b) is the circuit diagram of operation mode 2, Fig. 2 (c) is the circuit diagram of operation mode 3, Fig. 2 (d) is the circuit diagram of operation mode 4, Fig. 2 (e) is the circuit diagram of operation mode 5, Fig. 2 (f) is the circuit diagram of operation mode 6, Fig. 2 (g) is the circuit diagram of operation mode 7, Fig. 2 (h) is the circuit diagram of operation mode 8, in figure, solid line means in converter the part that has electric current to flow through, and dotted line means in converter the part that does not have electric current to flow through;
Fig. 3 is the circuit diagram of a kind of high-gain boost converter the second connected mode based on coupling inductance and voltage transfer technology of the embodiment of the present invention 2;
Fig. 4 is the circuit diagram of a kind of the third connected mode of high-gain boost converter based on coupling inductance and voltage transfer technology of the embodiment of the present invention 3.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment 1
As shown in Figure 1, a kind of high-gain boost converter based on coupling inductance and voltage transfer technology, comprise the asymmetric interlaced connected successively Boost circuit in parallel, voltage transfer element circuit, voltage doubling unit circuit and output unit circuit;
Described asymmetric interlaced Boost circuit in parallel comprises the first switching tube S
1, second switch pipe S
2, the first diode D
1, the first coupling inductance former limit winding L
11, the second coupling inductance former limit winding L
21;
Described voltage transfer element circuit comprises the first capacitor C
1, the 4th capacitor C
4with the second diode D
2;
Described voltage doubling unit circuit comprises the secondary winding L of the first coupling inductance
12, the second coupling inductance the secondary winding L
22, the second capacitor C
2, the 3rd diode D
3;
Described output unit circuit comprises the 4th diode D
4, the 3rd capacitor C
3with load R.
Concrete connected mode:
The former limit winding L of described the first coupling inductance
11same Name of Ends, the former limit winding L of the second coupling inductance
21same Name of Ends with the positive pole of input power, be connected; The former limit winding L of described the first coupling inductance
11the different name end respectively with second switch pipe S
2drain electrode, the first diode D
1anodic bonding;
The former limit winding L of described the second coupling inductance
21the different name end respectively with drain electrode, the first capacitor C of the first switching tube S1
1an end connect;
Described the first switching tube S
1source electrode, second switch pipe S
2source electrode with the negative pole of input power, be connected; Described the first capacitor C
1the other end respectively with the first diode D
1negative electrode, the second diode D
2anodic bonding;
Described the 4th capacitor C
4an end respectively with the second diode D
2negative electrode, the 3rd diode D
3anode, the secondary winding L of the first coupling inductance
12same Name of Ends connect;
The secondary winding L of described the first coupling inductance
12the different name end and the secondary winding L of the second coupling inductance
22the different name end connect; The secondary winding L of described the second coupling inductance
22same Name of Ends and the second capacitor C
2an end connect; Described the second capacitor C
2the other end respectively with the 3rd diode D
3negative electrode, the 4th diode D
4anodic bonding;
Described the 4th diode D
4negative electrode respectively with the 3rd capacitor C
3an end, the end of load R connects;
Described the 3rd capacitor C
3the other end, the other end of load R with the negative pole of input power, be connected.The other end of described the 4th electric capacity is connected with the negative pole of input power.
As Fig. 2 (a)～Fig. 2 (h), a kind of high-gain boost converter based on coupling inductance and voltage transfer technology has 8 operation modes in a switch periods, is described below respectively:
Operation mode 1:
As shown in Fig. 2 (a), the first switching tube S
1with second switch pipe S
2conducting, the first diode D
1, the second diode D
2with the 3rd diode D
3turn-off the 4th diode D
4because the electric current flow through is reduced to zero soft shutoff.The magnetizing inductance energy storage of two coupling inductances, the first coupling inductance L
1and the second coupling inductance L
2the voltage V that bear at winding two ends, former limit
lP1, V
lP2be respectively:
V
LP1=V
LP2=V
d （1）
Wherein, V
dfor input supply voltage.
Operation mode 2:
As shown in Fig. 2 (b), the first switching tube S
1closure, second switch pipe S
2disconnect.The second diode D now
2conducting, the 3rd diode D
3conducting, the first diode D
1with the 4th diode D
4turn-off.The second coupling inductance L
2in energy and the first capacitor C
1in energy to the 4th capacitor C
4shift, simultaneously input power by coupling inductance to capacitor C
2energy is provided.Now the voltage relationship in circuit is:
V
LP2=V
c4-V
c1-V
d （2）
V
c2=N(V
c4-V
c1) （3）
Wherein, V
c1be the first capacitor C 1 both end voltage, V
c2it is the second capacitor C
2both end voltage, V
c4it is the 4th capacitor C
4both end voltage, the first coupling inductance L
1, the second coupling inductance L
2former limit winding be N with the ratio of the secondary winding coil number of turn.
Operation mode 3:
As shown in Fig. 2 (c), the first switching tube S
1closure, second switch pipe S
2disconnect.The 3rd diode D now
3continue conducting, the first diode D
1with the 4th diode D
4continue to turn-off the second diode D
2because current flowing is reduced to zero soft shutoff.Input power continues by coupling inductance to capacitor C
2energy is provided.
Operation mode 4:
As shown in Figure 2 (d) shows, the first switching tube S
1continue closure, second switch pipe S
2closed.The 3rd diode D now
3continue conducting, the first diode D
1, the second diode D
2with the 4th diode D
4all turn-off.Flow through the 3rd diode D
3electric current descend rapidly, flow through second switch pipe S
2the electric current rising of starting from scratch, second switch pipe S
2realize zero current turning-on.
Operation mode 5:
As shown in Fig. 2 (e), the 3rd diode D
3reduce to zero because of the electric current flow through and realize soft shutoff, this operation mode is identical with operation mode 1.
Operation mode 6:
As shown in Fig. 2 (f), the first switching tube S
1turn-off second switch pipe S
2continue closed.The first diode D now
1with the 4th diode D
4conducting, the second diode D
2with the 3rd diode D
3turn-off.Input power and the first coupling inductance L
1former limit magnetizing inductance to the first capacitor C
1provide energy, simultaneously by the first coupling inductance L
1, the second coupling inductance L
2provide energy to load, the 4th capacitor C 4 and the second capacitor C
2provide energy to load, now the voltage relationship in circuit is:
V
LP1=V
c1-V
d （4）
V
o=V
c4+V
c2+NV
c1 （5）
Wherein, V
ofor output voltage.
Operation mode 7:
As shown in Fig. 2 (g), the first switching tube S
1turn-off second switch pipe S
2closed.The first diode D
1because the electric current flow through is reduced to zero soft shutoff, the 4th diode D
4conducting, input power, the 4th capacitor C
4and the second capacitor C
2continuation provides energy to load.
Operation mode 8:
As shown in Fig. 2 (h), the first switching tube S
1closure, second switch pipe S
2closure, the first diode D
1, the second diode D
2with the 3rd diode D
3turn-off the 4th diode D
4continue conducting, flow through the 4th diode D
4electric current descend rapidly, flow through the first switching tube S
1the electric current rising of starting from scratch, the first switching tube S
1realize zero current turning-on.
Voltage gain analysis during stable state:
If the first switching tube S
1with second switch pipe S
2the duty ratio of work is D, and their driving signal differs 180 ° on phase place, and according to inductance weber equilibrium response, and simultaneous formula (1)～formula (5) can obtain:
The voltage gain M that is a kind of high-gain boost converter based on coupling inductance and voltage transfer technology of the present invention is:
Embodiment 2
As Fig. 3, the unique difference of the present embodiment and embodiment 1 is: described the 4th capacitor C
4the other end with the positive pole of input power, be connected, all the other structures are all identical with embodiment 1 with function.
Embodiment 3
As Fig. 4, the unique difference of the present embodiment and embodiment 1 is: described the 4th capacitor C
4the other end and the 4th diode D
4negative electrode connect, all the other structures are all identical with embodiment 1 with function.
The present invention utilizes coupling inductance and the second capacitor C
2realize the expansion of voltage gain, utilized the leakage inductance of coupling inductance to realize the zero-current switching of switching tube zero current turning-on and diode, utilized the first capacitor C
1, the 4th capacitor C
4with the second diode D
2realized that the voltage transfer technology further improves the converter voltage gain, limited the voltage stress that switching tube bears, and reclaimed leakage inductance energy, utilized asymmetric Boost circuit to reduce the ripple of input current, and reduced the current stress that switching tube bears.
Above-described embodiment is preferably execution mode of the present invention; but embodiments of the present invention are not limited by the examples; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (2)
1. the high-gain boost converter based on coupling inductance and voltage transfer technology, is characterized in that, comprises the asymmetric interlaced connected successively Boost circuit in parallel, voltage transfer element circuit, voltage doubling unit circuit and output unit circuit;
Described asymmetric interlaced Boost circuit in parallel comprises the first switching tube (S
1), second switch pipe (S
2), the first diode (D
1), the former limit winding (L of the first coupling inductance
11), the former limit winding (L of the second coupling inductance
21);
Described voltage transfer element circuit comprises the first electric capacity (C
1), the 4th electric capacity (C
4) and the second diode (D
2);
Described voltage doubling unit circuit comprises the secondary winding (L of the first coupling inductance
12), the secondary winding (L of the second coupling inductance
22), the second electric capacity (C
2), the 3rd diode (D
3);
Described output unit circuit comprises the 4th diode (D
4), the 3rd electric capacity (C
3) and load (R).
2. converter according to claim 1, is characterized in that, the former limit winding (L of described the first coupling inductance
11) Same Name of Ends, the former limit winding (L of the second coupling inductance
21) Same Name of Ends with the positive pole of input power, be connected; The former limit winding (L of described the first coupling inductance
11) the different name end respectively with second switch pipe (S
2) drain electrode, the first diode (D
1) anodic bonding;
The former limit winding (L of described the second coupling inductance
21) the different name end respectively with the first switching tube (S
1) drain electrode, the first electric capacity (C
1) an end connect;
Described the first switching tube (S
1) source electrode, second switch pipe (S
2) source electrode with the negative pole of input power, be connected; Described the first electric capacity (C
1) the other end respectively with the first diode (D
1) negative electrode, the second diode (D
2) anodic bonding;
Described the 4th electric capacity (C
4) an end respectively with the second diode (D
2) negative electrode, the 3rd diode (D
3) anode, the secondary winding (L of the first coupling inductance
12) Same Name of Ends connect;
Secondary winding (the L of described the first coupling inductance
12) the different name end and the secondary winding (L of the second coupling inductance
22) the different name end connect; Secondary winding (the L of described the second coupling inductance
22) Same Name of Ends and the second electric capacity (C
2) an end connect; Described the second electric capacity (C
2) the other end respectively with the 3rd diode (D
3) negative electrode, the 4th diode (D
4) anodic bonding;
Described the 4th diode (D
4) negative electrode respectively with the 3rd electric capacity (C
3) an end, an end of load (R) connects;
Described the 3rd electric capacity (C
3) the other end, the other end of load (R) with the negative pole of input power, be connected;
Described the 4th electric capacity (C
4) the other end be connected with the negative pole of input power or be connected with the positive pole of input power or with the 4th diode (D
4) negative electrode connect.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103771228A CN103457460A (en) | 2013-08-26 | 2013-08-26 | High-gain boost converter based on coupling inductance and voltage transfer technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103771228A CN103457460A (en) | 2013-08-26 | 2013-08-26 | High-gain boost converter based on coupling inductance and voltage transfer technology |
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| CN103457460A true CN103457460A (en) | 2013-12-18 |
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ID=49739526
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105207477A (en) * | 2015-09-02 | 2015-12-30 | 南京航空航天大学 | Bidirectional three-port non-isolated DC converter and control method thereof |
| CN105515377A (en) * | 2016-01-26 | 2016-04-20 | 上海电力学院 | Soft switch high gain direct current converter based on coupling inductances and voltage doubling capacitors |
| CN105896977A (en) * | 2016-04-07 | 2016-08-24 | 厦门大学 | Soft switch of interlaced parallel DC-DC converter |
| CN108365746A (en) * | 2018-03-15 | 2018-08-03 | 山东大学 | A kind of two-way four phase DC-DC converter of high-gain based on coupling inductance and control method |
| CN110943617A (en) * | 2019-12-11 | 2020-03-31 | 中国船舶工业系统工程研究院 | Circuit topological structure of double-switch type DC/DC converter |
| CN111900877A (en) * | 2020-06-29 | 2020-11-06 | 哈尔滨工程大学 | Soft-switching high-gain direct-current converter based on coupling inductor and boost capacitor |
| CN113904547A (en) * | 2020-07-06 | 2022-01-07 | 百度（美国）有限责任公司 | Interleaved multiphase converter with coupled inductor and active clamp circuit |
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| CN101714815A (en) * | 2009-12-14 | 2010-05-26 | 浙江大学 | Boost type converter for realizing high-gain voltage multiplication by coupling inductors |
| CN203119763U (en) * | 2013-03-30 | 2013-08-07 | 高龙 | Quasi-interweaving parallel high-gain converter with voltage multiplication unit |
| CN203434860U (en) * | 2013-08-26 | 2014-02-12 | 华南理工大学 | High-gain boost converter based on coupling inductor and voltage transfer technology |
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| US6756772B2 (en) * | 2002-07-08 | 2004-06-29 | Cogency Semiconductor Inc. | Dual-output direct current voltage converter |
| CN101714815A (en) * | 2009-12-14 | 2010-05-26 | 浙江大学 | Boost type converter for realizing high-gain voltage multiplication by coupling inductors |
| CN203119763U (en) * | 2013-03-30 | 2013-08-07 | 高龙 | Quasi-interweaving parallel high-gain converter with voltage multiplication unit |
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| CN105207477B (en) * | 2015-09-02 | 2017-12-15 | 南京航空航天大学 | The non-isolated DC converter in two-way three port and its control method |
| CN105207477A (en) * | 2015-09-02 | 2015-12-30 | 南京航空航天大学 | Bidirectional three-port non-isolated DC converter and control method thereof |
| CN105515377A (en) * | 2016-01-26 | 2016-04-20 | 上海电力学院 | Soft switch high gain direct current converter based on coupling inductances and voltage doubling capacitors |
| CN105896977B (en) * | 2016-04-07 | 2018-09-11 | 厦门大学 | A kind of Sofe Switch of crisscross parallel type DC-DC converter |
| CN105896977A (en) * | 2016-04-07 | 2016-08-24 | 厦门大学 | Soft switch of interlaced parallel DC-DC converter |
| CN108365746B (en) * | 2018-03-15 | 2019-06-14 | 山东大学 | A high-gain bidirectional four-phase DC-DC converter based on coupled inductor and control method |
| CN108365746A (en) * | 2018-03-15 | 2018-08-03 | 山东大学 | A kind of two-way four phase DC-DC converter of high-gain based on coupling inductance and control method |
| CN110943617A (en) * | 2019-12-11 | 2020-03-31 | 中国船舶工业系统工程研究院 | Circuit topological structure of double-switch type DC/DC converter |
| CN110943617B (en) * | 2019-12-11 | 2022-04-19 | 中国船舶工业系统工程研究院 | Circuit topological structure of double-switch type DC/DC converter |
| CN111900877A (en) * | 2020-06-29 | 2020-11-06 | 哈尔滨工程大学 | Soft-switching high-gain direct-current converter based on coupling inductor and boost capacitor |
| CN111900877B (en) * | 2020-06-29 | 2022-04-05 | 哈尔滨工程大学 | A Soft-Switching High-Gain DC Converter Based on Coupled Inductors and Boost Capacitors |
| CN113904547A (en) * | 2020-07-06 | 2022-01-07 | 百度（美国）有限责任公司 | Interleaved multiphase converter with coupled inductor and active clamp circuit |
| CN113904547B (en) * | 2020-07-06 | 2024-05-24 | 百度（美国）有限责任公司 | Interleaved multiphase converter with coupled inductor and active clamp circuit |
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Application publication date: 20131218 |