WO2018145281A1 - Appareil de conversion bidirectionnel - Google Patents

Appareil de conversion bidirectionnel Download PDF

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Publication number
WO2018145281A1
WO2018145281A1 PCT/CN2017/073149 CN2017073149W WO2018145281A1 WO 2018145281 A1 WO2018145281 A1 WO 2018145281A1 CN 2017073149 W CN2017073149 W CN 2017073149W WO 2018145281 A1 WO2018145281 A1 WO 2018145281A1
Authority
WO
WIPO (PCT)
Prior art keywords
switch
current
transformer
bidirectional conversion
control circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2017/073149
Other languages
English (en)
Chinese (zh)
Inventor
胡定高
赵德琦
吴壬华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shinry E-Controls Co Ltd
Original Assignee
Shinry E-Controls Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shinry E-Controls Co Ltd filed Critical Shinry E-Controls Co Ltd
Priority to PCT/CN2017/073149 priority Critical patent/WO2018145281A1/fr
Priority to CN201780001880.6A priority patent/CN107820668A/zh
Publication of WO2018145281A1 publication Critical patent/WO2018145281A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • H02M3/22—Conversion of DC power input into DC power output with intermediate conversion into AC
    • H02M3/24—Conversion of DC power input into DC power output with intermediate conversion into AC by static converters
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/0003—Details of control, feedback or regulation circuits
    • H02M1/0009—Devices or circuits for detecting current in a converter

Definitions

  • the present invention relates to the field of automotive electronics, and in particular to a bidirectional conversion device.
  • the embodiment of the invention discloses a bidirectional conversion device, which can realize the control and protection function of the bidirectional circuit, and reduces the design cost of the device and reduces the device volume.
  • a first aspect of the present invention discloses a bidirectional conversion device including a current sampling device, a transformer, a first end of the first side of the transformer is connected to the current sampling device, and the current sampling device is configured to detect the first transformer Current information of the side, the transformer is used to convert the input side energy of the bidirectional conversion device to the output side through transformer isolation.
  • the current sampling device includes a current detecting device, and the current detecting device is configured to collect current information of the first side of the transformer And detecting the magnitude of the current information.
  • a first side of the transformer is connected to a current input side of the bidirectional conversion device,
  • the current sampling device collects current information on the input side, and the current sampling device transmits current information on the input side to the control circuit, and the control circuit protects and controls the input side of the bidirectional conversion device Current size.
  • the second side of the transformer is connected to a current input side of the bidirectional conversion device
  • the first side of the transformer is an output side of the bidirectional conversion device
  • the current sampling device collects current information on the output side
  • the current sampling device transmits current information on the output side to the control a circuit
  • the control circuit determining a second measured input current of the transformer according to a turns ratio of the transformer, and protecting and controlling a current level on an input side of the bidirectional conversion device.
  • the device further includes: a first capacitor, a second capacitor, a first switch, a second switch, and a third switch a switch, a fourth switch, a fifth switch, a sixth switch, a seventh switch, and an eighth switch, wherein the second end of the first side of the transformer is connected to the first switch and the second a switching switch, the current sampling device is connected to the third switching switch and the fourth switching switch; a positive pole of the first capacitor is connected in parallel with the first switching switch and the third switching switch, the first a cathode of the capacitor is connected in parallel with the second switch and the fourth switch, and a first end of the second side of the transformer is connected to the fifth switch and the sixth switch, a second end of the two sides is connected to the seventh switch and the eighth switch, and a positive pole of the second capacitor is connected in parallel with the fifth switch and the seventh switch, the second Receiving the negative electrode and a sixth switch connected in parallel to the eighth switch
  • the current sampling device is configured to collect current information of the first side of the transformer
  • the transformer is configured to convert the input side energy of the bidirectional conversion device to the input through the transformer isolation Out of the side.
  • the embodiment of the invention realizes the control and protection function of the bidirectional circuit by adopting a current sampling device on the first side of the transformer, thereby reducing the design cost of the device and reducing the volume of the device.
  • 1a is a schematic structural diagram of a bidirectional conversion device according to an embodiment of the present invention.
  • FIG. 1b is a schematic structural diagram of a current sampling device according to an embodiment of the present invention.
  • FIG. 1d is a schematic structural diagram of still another bidirectional conversion device according to an embodiment of the present invention.
  • references to "an embodiment” herein mean that a particular feature, structure, or characteristic described in connection with the embodiments can be included in at least one embodiment of the invention.
  • the appearances of the phrases in various places in the specification are not necessarily referring to the same embodiments, and are not exclusive or alternative embodiments that are mutually exclusive. Those skilled in the art understand explicitly and implicitly that the embodiments described herein may be Its embodiment is combined.
  • FIG. 1a is a schematic structural diagram of a first embodiment of a bidirectional conversion device according to an embodiment of the present invention.
  • a bidirectional conversion device described in this embodiment may include a current sampling device. , transformers, where:
  • a first end of the first side of the transformer is connected to the current sampling device; the current sampling device is configured to detect current information of a first side of the transformer, and the transformer is used to input the side energy of the bidirectional conversion device Switch to the output side by transformer isolation.
  • the current sampling device comprises a current detecting device that collects current information of the first side of the transformer and detects the magnitude of the current information.
  • the bidirectional conversion device further includes a control circuit, the control circuit is connected to the current detecting device, and the control circuit is configured to control and protect the current according to the current information sent by the current detecting device.
  • the current on the input side of the bidirectional conversion device protects the circuit from overload, and when the current load is greater than a preset threshold, the power supply current is cut off in time.
  • the first side of the transformer may be connected to the current input side, or may be connected to the current output side.
  • the current detecting device collects current information of the input side.
  • the current detecting means detects the current information, and when the current information satisfies a demand of an input side current, transmits the current information to the control circuit, the control circuit protects and controls the input of the bidirectional conversion device The size of the current;
  • the current sampling device collects current information on the output side, and the current sampling device transmits current information on the output side to the control circuit
  • the control circuit determines a second measured input current of the transformer according to a turns ratio of the transformer, the control circuit applies overload protection to the input current, and controls an input current of the bidirectional conversion device to achieve The control and protection functions of the bidirectional conversion device.
  • the bidirectional conversion device further includes a first capacitor (C1), a second capacitor (C2), a first switch (SW1), a second switch (SW2), and a third switch. (SW3), a fourth switch (SW4), a fifth switch (SW5), a sixth switch (SW6), a seventh switch (SW7), and an eighth switch (SW8), wherein:
  • a second end of the first side of the transformer is connected to the first switch and the second switch, and the current sampling device is connected to the third switch and the fourth switch; a positive pole of the capacitor is connected in parallel with the first switch and the third switch, and a cathode of the first capacitor is connected in parallel with the second switch and the fourth switch, and the second side of the transformer The first end is connected to the fifth switch and the sixth switch, and the second end of the second side of the transformer is connected to the seventh switch and the eighth switch, the second capacitor The positive pole is connected in parallel with the fifth switch and the seventh switch, and the cathode of the second capacitor is connected in parallel with the sixth switch and the eighth switch.
  • the current sampling device is configured to collect current information of the first side of the transformer
  • the transformer is configured to convert the input side energy of the bidirectional conversion device to the output side through transformer isolation.
  • the embodiment of the invention realizes the control and protection function of the bidirectional circuit by adopting a current sampling device on the first side of the transformer, thereby reducing the design cost of the device and reducing the volume of the device.
  • the embodiment of the present invention further provides a computer storage medium, wherein the computer storage medium can store a program, and the program includes some or all of the functions of the bidirectional conversion device when executed.
  • embodiments of the present invention can be provided as a method, apparatus (device), or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • the computer program is stored/distributed in a suitable medium, provided with other hardware or as part of the hardware, or Use other forms of distribution, such as through the Internet or other wired or wireless telecommunications systems.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

L'invention concerne un appareil de conversion bidirectionnel comprenant un appareil d'échantillonnage de courant et un transformateur. L'appareil d'échantillonnage de courant est utilisé pour collecter des informations de courant d'un premier côté du transformateur. Le transformateur est utilisé pour convertir l'énergie d'un côté entrée de l'appareil de conversion bidirectionnel vers un côté sortie au moyen d'un isolement de transformateur. L'appareil de conversion bidirectionnel peut commander et protéger un circuit bidirectionnel, réduire les coûts de conception de l'appareil et réduire le volume de l'appareil.
PCT/CN2017/073149 2017-02-09 2017-02-09 Appareil de conversion bidirectionnel Ceased WO2018145281A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2017/073149 WO2018145281A1 (fr) 2017-02-09 2017-02-09 Appareil de conversion bidirectionnel
CN201780001880.6A CN107820668A (zh) 2017-02-09 2017-02-09 一种双向变换装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/073149 WO2018145281A1 (fr) 2017-02-09 2017-02-09 Appareil de conversion bidirectionnel

Publications (1)

Publication Number Publication Date
WO2018145281A1 true WO2018145281A1 (fr) 2018-08-16

Family

ID=61606901

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/073149 Ceased WO2018145281A1 (fr) 2017-02-09 2017-02-09 Appareil de conversion bidirectionnel

Country Status (2)

Country Link
CN (1) CN107820668A (fr)
WO (1) WO2018145281A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0722211B1 (fr) * 1995-01-13 2005-05-11 Thales Avionics S.A. Convertisseurs de tension bidirectionnels de type continu-continu et capteur de courant
CN102064702A (zh) * 2010-12-31 2011-05-18 刘闯 双向隔离式的串联谐振dc/dc变换器
CN104158405A (zh) * 2014-08-25 2014-11-19 东南大学 一种用于微网的双向dc/dc变换器及偏磁数字抑制方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08107683A (ja) * 1994-10-03 1996-04-23 Mitsubishi Electric Corp 電動機の運転制御装置及び絶縁型双方向直流電圧変換回路
JP4318174B2 (ja) * 2003-12-11 2009-08-19 本田技研工業株式会社 Ｄｃ−ｄｃコンバータ
CN102201754B (zh) * 2011-04-26 2014-03-12 刘闯 多电平逆变器的拓扑及恒频电压滞环控制
CN204832315U (zh) * 2015-08-04 2015-12-02 广东爱迪贝克软件科技有限公司 双向电流检测电路
CN105391304A (zh) * 2015-12-20 2016-03-09 魏腾飞 一种双向全桥dc-dc变换器的pwm控制方法
CN105871215A (zh) * 2016-05-17 2016-08-17 华南理工大学 用于双向clllc谐振变换器的整流控制电路
CN106026754B (zh) * 2016-05-24 2018-12-11 国网福建省电力有限公司 多用途双向功率电力试验电源系统及其控制方法
CN206490589U (zh) * 2017-02-09 2017-09-12 上海欣锐电控技术有限公司 一种双向变换装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0722211B1 (fr) * 1995-01-13 2005-05-11 Thales Avionics S.A. Convertisseurs de tension bidirectionnels de type continu-continu et capteur de courant
CN102064702A (zh) * 2010-12-31 2011-05-18 刘闯 双向隔离式的串联谐振dc/dc变换器
CN104158405A (zh) * 2014-08-25 2014-11-19 东南大学 一种用于微网的双向dc/dc变换器及偏磁数字抑制方法

Also Published As

Publication number Publication date
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