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WO2016177011A1 - Convertisseur élévateur de tension de source z à gain élevé à partage de mise à la terre - Google Patents

Convertisseur élévateur de tension de source z à gain élevé à partage de mise à la terre Download PDF

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Publication number
WO2016177011A1
WO2016177011A1 PCT/CN2015/100157 CN2015100157W WO2016177011A1 WO 2016177011 A1 WO2016177011 A1 WO 2016177011A1 CN 2015100157 W CN2015100157 W CN 2015100157W WO 2016177011 A1 WO2016177011 A1 WO 2016177011A1
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WIPO (PCT)
Prior art keywords
capacitor
extremity
inductor
diode
boost converter
Prior art date
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Ceased
Application number
PCT/CN2015/100157
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English (en)
Chinese (zh)
Inventor
张波
沈瀚云
丘东元
周丽萍
肖文勋
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South China University of Technology SCUT
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South China University of Technology SCUT
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Publication date
Application filed by South China University of Technology SCUT filed Critical South China University of Technology SCUT
Publication of WO2016177011A1 publication Critical patent/WO2016177011A1/fr
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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

Definitions

  • the present invention relates to the field of DC/DC converters, and in particular to a common ground high gain Z source boost converter.
  • the conventional DC/DC boost converter is limited by the duty cycle, heat generation and loss, and cannot achieve a large boost.
  • the Boost converter has a voltage gain of 1/(1-D) and D is occupied. Air ratio, when the duty cycle is close to 1, the higher voltage gain can be obtained, but at the same time, the above problems are encountered; and many Z-source DC/DC converters use the Z-source network to achieve boosting.
  • the voltage gain of the Z-source boost converter is (1-D)/(1-2D), and there are also problems such as non-common ground and large switching tube stress.
  • the circuit of the present invention specifically includes a DC input power source V in , a first diode, a first inductor, a second inductor, a first capacitor, a second capacitor, a switch transistor, a second diode, an output capacitor, and a load.
  • the circuit of the present invention is specifically connected in such a manner that one end of the DC input power source V in is connected to the anode of the first diode.
  • the cathode of the first diode is coupled to one end of the first inductor, one end of the first capacitor, and the anode of the second diode.
  • the other end of the first inductor is connected to one end of the second capacitor and the drain of the switch.
  • the other end of the first capacitor is connected to the source of the switching transistor and one end of the second inductor.
  • the second diode is connected to one end of the output capacitor and one end of the load.
  • the output capacitor is in parallel with the load.
  • the other end of the DC input power supply V in the other end with the other end of the second capacitor, the other end of the second inductor, the other end of the output capacitor and the load connected.
  • the circuit of the invention has the advantage that compared with the conventional Boost converter (the output voltage is And Z source boost converter (its output voltage is ) DC/DC converters, with the same duty cycle and input voltage, have higher output voltage, and the output voltage is Under the same input voltage and output voltage conditions, the circuit of the invention only needs a small duty ratio to raise the low-level voltage to a high-level voltage, and the input and output are common, the switching tube stress is low, the structure is simple, and the efficiency is low. High, so the circuit of the invention has a wide application prospect.
  • the conventional Boost converter the output voltage is And Z source boost converter (its output voltage is ) DC/DC converters
  • the circuit of the invention only needs a small duty ratio to raise the low-level voltage to a high-level voltage, and the input and output are common, the switching tube stress is low, the structure is simple, and the efficiency is low. High, so the circuit of the invention has a wide application prospect.
  • Figure 1 is a block diagram of a common ground high gain Z source boost converter.
  • Figure 2 shows the voltage and current waveforms of the main components of a switching cycle.
  • Figures 3a to 3b are circuit modal diagrams of a switching cycle.
  • FIG. 4 is a waveform diagram of the gain V o /V in of the circuit, Boost, and Z source boost converter of the present invention as a function of the duty ratio D.
  • the basic topology of the present invention and the voltage and current reference directions of the main components are as shown in FIG.
  • the devices in the circuit structure are considered ideal devices.
  • the driving signal V GS of the switching transistor S, the first diode D 1 current i D1 , the second diode D 2 current i D2 , the first inductance L 1 current i L1 , the second inductance L 2 current i L2 , the first A waveform diagram of a capacitor C 1 voltage V C1 and a second capacitor C 2 voltage V C2 is shown in FIG. 2 .
  • the modal diagram of the converter at this stage is as shown in Fig. 3a, the driving signal V GS of the switching transistor S changes from a low level to a high level, and the switching transistor S leads
  • the first diode D 1 is subjected to a reverse voltage cut-off
  • the second diode D 2 is subjected to a forward voltage conduction.
  • the first capacitor C 1 and the second capacitor C 2 respectively, to the first inductor L 1 and the second inductor L 2 is charged by the switch S, in addition, the first capacitor C 1 and capacitor C 2 through the second switch simultaneously to the output S Capacitor C out is charged and the load is powered.
  • the capacitance values of the first capacitor C 1 and the second capacitor C 2 are the same and are a symmetrical structure, so the first inductor L 1 and the first capacitor C 1 is equal to the voltage and current of the second inductor L 2 and the second capacitor C 2 , respectively.
  • V C1 D (V C1 -V in )(1-D) (1)
  • the steady-state gains of the traditional Boost converter and the Z-source boost converter are 1/(1-D) and (1-D)/(1-2D) respectively (D is the duty ratio).
  • the circuit and Boost proposed in this paper The steady-state gain comparison diagram of the converter and Z-source boost converter is shown in Fig. 4. As can be seen from Fig. 4, when the input voltage is 24V, the circuit proposed in this paper only needs to have a duty ratio of 0.4 to rise to about 144V. The other two converters require a larger duty cycle.

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

Abstract

L'invention concerne un convertisseur élévateur de tension de source Z à gain élevé à partage de mise à la terre comprenant une alimentation électrique d'entrée en courant continu (Vin), une première diode (D1), une première bobine d'induction (L1), une seconde bobine d'induction (L2), un premier condensateur (C1), un second condensateur (C2), un transistor de commutation (S), une seconde diode (D2), un condensateur de sortie (Cout), et une charge. Une extrémité de l'alimentation électrique d'entrée en courant continu est connectée à l'anode de la première diode. La cathode de la première diode est connectée à une extrémité de la première bobine d'induction, à une extrémité du premier condensateur, et à l'anode de la seconde diode. L'autre extrémité de la première bobine d'induction est connectée à une extrémité du second condensateur et à une électrode de drain du transistor de commutation. L'autre extrémité du premier condensateur est connectée à une électrode de source du transistor de commutation et à une extrémité de la seconde bobine d'induction. La cathode de la seconde diode est connectée à une extrémité du condensateur de sortie et à une extrémité de la charge. L'autre extrémité de l'alimentation électrique d'entrée en courant continu est connectée à l'autre extrémité du second condensateur, à l'autre extrémité de la seconde bobine d'induction, à l'autre extrémité du condensateur de sortie, et à l'autre extrémité de la charge. En comparant un convertisseur élévateur de tension et un convertisseur élévateur de tension de source Z traditionnel, le convertisseur selon la présente invention génère un gain de tension accru.
PCT/CN2015/100157 2015-05-01 2015-12-31 Convertisseur élévateur de tension de source z à gain élevé à partage de mise à la terre Ceased WO2016177011A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510224460.7A CN105450020A (zh) 2015-05-01 2015-05-01 一种共地的高增益z源升压变换器
CN201510224460.7 2015-05-01

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WO2016177011A1 true WO2016177011A1 (fr) 2016-11-10

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109274265A (zh) * 2018-11-21 2019-01-25 三峡大学 一种基于新型电压增益单元的单开关高增益Boost变换器
CN109510464A (zh) * 2018-11-21 2019-03-22 三峡大学 一种具备高增益升压能力的Buck-Boost DC-DC变换器
CN110880868A (zh) * 2019-11-26 2020-03-13 上海申传电气股份有限公司 一种新型宽增益二次型降压变换器
CN113179015A (zh) * 2021-05-12 2021-07-27 西安石油大学 一种基于z升压结构的高增益dc-dc变换器
CN113258812A (zh) * 2021-05-31 2021-08-13 郑州大学 一种低应力升压逆变器及其实现方法
CN113364294A (zh) * 2021-07-15 2021-09-07 南通大学 低电压应力和低输入电流纹波高增益变换器及控制方法
CN114640243A (zh) * 2022-03-29 2022-06-17 南方科技大学 直流变换电路及直流变换系统
CN115051563A (zh) * 2022-06-15 2022-09-13 三峡大学 一种多倍次超高电压增益dc-dc变换器
CN116455220A (zh) * 2023-04-24 2023-07-18 天津商业大学 低开关电压应力的双开关高升压直流变换器
CN119865056A (zh) * 2025-01-08 2025-04-22 东北林业大学 一种开关电感串联型准z源直流升压变换器

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CN106602869A (zh) * 2017-01-26 2017-04-26 华南理工大学 一种共地型高增益z源dc‑dc变换器
CN107104590A (zh) * 2017-05-24 2017-08-29 华南理工大学 一种基于开关电感的准开关升压dc/dc变换器
CN107104596A (zh) * 2017-05-24 2017-08-29 华南理工大学 一种低电压应力的高增益准开关升压dc/dc变换器
CN108462391A (zh) * 2018-03-13 2018-08-28 广东工业大学 一种阻抗网络dc-dc变换器
CN109756105B (zh) * 2018-06-30 2024-04-26 华南理工大学 一种输入输出共地有源开关电容z源升压斩波电路
CN109217670A (zh) * 2018-10-18 2019-01-15 广东工业大学 一种新能源系统及其z源dc-dc变换器
CN111245219B (zh) * 2020-01-15 2022-03-25 广东工业大学 一种高功率密度的新型嵌入阻抗网络dc-dc变换器和开关电源
CN119210175B (zh) * 2024-09-26 2025-06-20 西南交通大学 基于低压能量回收的高增益无桥串联输出整流器

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CN203872079U (zh) * 2014-01-28 2014-10-08 华南理工大学 一种非对称型双输出z源半桥变换器
CN204597776U (zh) * 2015-05-01 2015-08-26 华南理工大学 一种共地的高增益z源升压变换器

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CN103490628A (zh) * 2013-09-16 2014-01-01 华南理工大学 一种单相高增益升压变换器
CN104052271A (zh) * 2014-05-29 2014-09-17 上海电力学院 Z源高增益直流升压变换器

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109274265A (zh) * 2018-11-21 2019-01-25 三峡大学 一种基于新型电压增益单元的单开关高增益Boost变换器
CN109510464A (zh) * 2018-11-21 2019-03-22 三峡大学 一种具备高增益升压能力的Buck-Boost DC-DC变换器
CN110880868A (zh) * 2019-11-26 2020-03-13 上海申传电气股份有限公司 一种新型宽增益二次型降压变换器
CN113179015A (zh) * 2021-05-12 2021-07-27 西安石油大学 一种基于z升压结构的高增益dc-dc变换器
CN113258812B (zh) * 2021-05-31 2022-05-10 郑州大学 一种低应力升压逆变器及其实现方法
CN113258812A (zh) * 2021-05-31 2021-08-13 郑州大学 一种低应力升压逆变器及其实现方法
CN113364294A (zh) * 2021-07-15 2021-09-07 南通大学 低电压应力和低输入电流纹波高增益变换器及控制方法
CN113364294B (zh) * 2021-07-15 2022-07-26 南通大学 低电压应力和低输入电流纹波高增益变换器及控制方法
CN114640243A (zh) * 2022-03-29 2022-06-17 南方科技大学 直流变换电路及直流变换系统
CN114640243B (zh) * 2022-03-29 2024-04-30 南方科技大学 直流变换电路及直流变换系统
CN115051563A (zh) * 2022-06-15 2022-09-13 三峡大学 一种多倍次超高电压增益dc-dc变换器
CN115051563B (zh) * 2022-06-15 2024-06-11 三峡大学 一种多倍次超高电压增益dc-dc变换器
CN116455220A (zh) * 2023-04-24 2023-07-18 天津商业大学 低开关电压应力的双开关高升压直流变换器
CN116455220B (zh) * 2023-04-24 2025-09-02 天津商业大学 低开关电压应力的双开关高升压直流变换器
CN119865056A (zh) * 2025-01-08 2025-04-22 东北林业大学 一种开关电感串联型准z源直流升压变换器

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