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WO2018129961A1 - Extrémité d'émission de puissance de résonance à couplage magnétique ayant plusieurs circuits résonants connectés en parallèle, extrémité réceptrice, et système - Google Patents

Extrémité d'émission de puissance de résonance à couplage magnétique ayant plusieurs circuits résonants connectés en parallèle, extrémité réceptrice, et système Download PDF

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Publication number
WO2018129961A1
WO2018129961A1 PCT/CN2017/104460 CN2017104460W WO2018129961A1 WO 2018129961 A1 WO2018129961 A1 WO 2018129961A1 CN 2017104460 W CN2017104460 W CN 2017104460W WO 2018129961 A1 WO2018129961 A1 WO 2018129961A1
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WO
WIPO (PCT)
Prior art keywords
resonant
circuit
receiving
transmitting
parallel
Prior art date
Application number
PCT/CN2017/104460
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English (en)
Chinese (zh)
Inventor
范金焰
Original Assignee
上海蔚来汽车有限公司
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Filing date
Publication date
Application filed by 上海蔚来汽车有限公司 filed Critical 上海蔚来汽车有限公司
Publication of WO2018129961A1 publication Critical patent/WO2018129961A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/22—Capacitive coupling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
    • H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
    • H04B5/24—Inductive coupling

Definitions

  • the present invention relates to the field of wireless charging technologies, and in particular, to a magnetically coupled resonant power transmitting end, a receiving end and a system in which multiple resonant circuits are connected in parallel.
  • MOSFET Metal-Oxide-Semiconductor Field-Effect Transistor
  • the present invention provides A multi-resonant circuit in parallel with a magnetically coupled resonant power transmitting end, the transmitting end is connected with a DC voltage power supply, the transmitting end includes two or more transmitting circuit units, and each transmitting circuit unit includes a transmitting resonance
  • the circuit and the inverter circuit for driving the transmitting resonant circuit are connected in parallel with each input end of the inverter circuit.
  • the resonant coils in all of the transmit resonant circuits form an array of transmit coils.
  • each of the resonant coils constituting the array of transmitting coils is disposed in a plane.
  • each of the resonant coils constituting the array of the transmitting coils is a planar coil.
  • a compensation capacitor is connected in series in the transmission resonant circuit.
  • the emission resonant circuit is a CLC resonant circuit.
  • the inverter circuit is a full bridge inverter circuit.
  • the PWM switching frequency of the full bridge inverter circuit is 85 kHz.
  • the invention also provides a magnetic resonance resonant power receiving end of a multi-resonant circuit connected in parallel, the receiving end is connected with an output voltage, the receiving end comprises a receiving circuit unit, and the number of the receiving circuit unit is parallel with the multi-resonant circuit
  • the number of transmitting circuit units in the transmitting end is the same, and each receiving circuit unit includes a receiving resonant circuit corresponding to the transmitting resonant circuit in the transmitting circuit unit, and a rectifying output circuit, and the output ends of the respective rectified output circuits are connected in parallel.
  • the resonant coils in all of the receiving resonant circuits form an array of receiving coils.
  • each of the resonant coils constituting the array of receiving coils is disposed in a plane.
  • each of the resonant coils constituting the array of the transmitting coils is a planar coil.
  • a compensation capacitor is connected in series in the receiving resonant circuit.
  • the receiving resonant circuit is a CLC resonant circuit.
  • the rectified output circuit is a bridge rectifier circuit.
  • the invention also provides a magnetically coupled resonance electrical energy system in which multiple resonant circuits are connected in parallel, comprising a transmitting end and a receiving end.
  • the inductance values of the resonant coils in the transmitting resonant circuit and the receiving resonant circuit are equal, and the capacitance values of the compensation capacitors in the transmitting resonant circuit and the receiving resonant circuit are equal.
  • the present invention has at least the following advantages:
  • FIG. 1 is a schematic diagram of wiring provided in the prior art for solving the problem of the on-state current limit of a power tube
  • FIG. 2 is a schematic diagram showing the connection of a magnetically coupled resonant power system in which multiple resonant circuits are connected in parallel according to the present invention
  • FIG. 3 is a schematic diagram showing the specific wiring of a magnetically coupled resonant power system in which two resonant circuits are connected in parallel according to the present invention
  • FIG. 4 is a schematic diagram of a resonant coil in a transmitting end of the same plane provided by the present invention.
  • the invention solves the contradiction between the high-power wireless charging resonant current and the MOS tube not being too large, and solves the contradiction between the high-power wireless charging resonant current and the MOS tube not exceeding the current, and promotes the wireless charging in the electric vehicle charging field. Universal application.
  • the invention provides a magnetic resonance resonant power transmitting end of a multi-resonant circuit in parallel, and a magnetic coupling resonant power receiving end of a multi-resonant circuit in parallel, and a multi-resonant circuit composed of the transmitting end and the receiving end are connected in parallel Magnetically coupled resonant power system.
  • the transmitting end, the receiving end, and the system will be generally described from the perspective of a magnetically coupled resonant power system in which multiple resonant circuits are connected in parallel.
  • the magnetically coupled resonant power system 01 includes a magnetically coupled resonant power transmitting end 02 in which multiple resonant circuits are connected in parallel, and a multi-resonant circuit.
  • the resonant coils in all the transmitting resonant circuits 05 constitute an array of transmitting coils, and the resonant coils constituting the transmitting coil array are disposed in the same plane, and the resonant coils constituting the transmitting coil array are planar coils; all receiving resonant circuits 08
  • the resonant coils in the middle constitute a receiving coil array, and the resonant coils constituting the receiving coil array are disposed in a plane, and the resonant coils constituting the receiving coil array are planar coils;
  • the transmitting resonant circuit 05 and the receiving resonant circuit 08 are The inductance values of the resonant coils are equal; in practical applications, the resonant coils in the array of transmitting coils and the resonant coils in the array of receiving coils are correspondingly arranged.
  • the respective resonant coils do not overlap each other.
  • the resonant coils L 1 and L 2 are disposed in the same plane.
  • the predetermined spacing distance between the resonant coils is preferably not less than 5 cm.
  • the transmitting resonant circuit 05 and the receiving resonant circuit 08 are each connected in series with a compensation capacitor, and the capacitance values of the compensation capacitors in the transmitting resonant circuit 05 and the receiving resonant circuit 08 are equal; the transmitting resonant circuit 05 and the receiving resonant circuit 08 are both It is a CLC resonant circuit.
  • two or more selected radiating resonant circuits 04 are selected, which can realize that the MOS tube to be solved cannot be excessively current, and how to reduce the resonant capacitor.
  • the working voltage which in turn reduces the cost, promotes the popularization of wireless charging in the field of electric vehicle charging, especially the design of two resonant circuits 04 is optimal.
  • the following description is directed to the preferred embodiment employing two resonant circuits 04 as an embodiment.
  • the DC voltage source is U
  • two transmit resonant circuits (the compensation capacitor C 1 , the resonant coil L 1 and the compensation capacitor C 2 form a transmit resonant circuit, and the compensation capacitor C 3
  • the resonant coil L 2 and the compensation capacitor C 4 constitute another transmitting resonant circuit
  • the corresponding two receiving resonant circuits (the compensation capacitor C 5 , the resonant coil L 3 and the compensation capacitor C 6 form a receiving resonant circuit, and the compensation capacitor C 7.
  • the resonant coil L 4 and the compensation capacitor C 8 constitute another receiving resonant circuit);
  • the PWM (Pulse Width Modulation) driving signal applied to the switching circuit of the inverter circuit is a square wave
  • the PWM switching frequency is 85 kHz
  • the DC voltage is inverted to an AC square wave voltage of 85,000 Hz, which drives the C 1 L 1 C 2 emission resonant circuit to resonate with the C 3 L 2 C 4 transmit resonant circuit, generating an alternating magnetic field in space, receiving
  • the C 5 L 3 C 6 receiving resonant circuit and the C 7 L 4 C 8 receiving resonant circuit resonate with the transmitting resonant circuit, and the resonant sinusoidal voltage is outputted by the rectified output circuit to become the DC voltage V out .
  • the inverter circuit in the transmitting end of the magnetically coupled resonant power system is a full bridge inverter circuit, and the PWM switching frequency of the full bridge inverter circuit is 85 kHz; the rectified output circuit is a bridge rectifier circuit.
  • the multi-resonant circuit in parallel with the multi-resonant circuit has a multi-resonant circuit connected in parallel with the magnetically coupled resonance electric energy transmitting end 02, and the multi-resonant circuit is connected in parallel with the magnetically coupled resonant electric energy receiving end 03, and the transmitting end 02 is connected with a DC voltage power supply.
  • the receiving end 03 is connected with an output voltage.
  • the transmitting end 02 is disposed at the charging station and the receiving end 03 is disposed in the vehicle body. Only when the electric vehicle is charged, the transmitting end 02 and the receiving end 03 cooperate with each other to realize electric energy. Wireless transmission.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

L'invention concerne une extrémité d'émission (02) de puissance de résonance à couplage magnétique ayant plusieurs circuits résonants connectés en parallèle, une extrémité réceptrice (03), et un système (01), comprenant : une extrémité d'émission (02), laquelle accède à une alimentation électrique en tension en courant continu, et une extrémité réceptrice (03), laquelle est connectée à une tension de sortie ; l'extrémité d'émission (02) comprend deux unités de circuits (04) d'émission ou plus, chaque unité de circuit (04) d'émission comprenant un circuit résonant (05) d'émission et un circuit inverseur (06), lequel sert à l'attaque du circuit résonant (05) d'émission, et une extrémité d'entrée de chaque circuit inverseur (06) étant connectée en parallèle ; le nombre d'unités de circuits récepteurs (07) est identique au nombre d'unités de circuits (04) d'émission à l'extrémité d'émission (02), et chaque unité de circuit (07) récepteur comprend un circuit résonant (08) récepteur, lequel est installé en correspondance avec le circuit résonant (05) d'émission dans l'unité de circuit (04) d'émission, et un circuit redresseur et de sortie (09), une extrémité de sortie de chaque circuit redresseur et de sortie (09) étant connectée en parallèle. Ladite solution résout le problème selon lequel un fort courant ne peut pas traverser un tube MOS, et par rapport aux solutions existantes, réduit la tension de fonctionnement d'un condensateur résonant lors de l'émission de ladite puissance, réduisant ainsi les coûts et promouvant l'application large de la charge sans fil dans le champ technique de la charge de véhicules électriques.
PCT/CN2017/104460 2017-01-13 2017-09-29 Extrémité d'émission de puissance de résonance à couplage magnétique ayant plusieurs circuits résonants connectés en parallèle, extrémité réceptrice, et système WO2018129961A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710025029.9A CN106602733B (zh) 2017-01-13 2017-01-13 多谐振电路并联的磁耦合共振电能发射端、接收端及系统
CN201710025029.9 2017-01-13

Publications (1)

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WO2018129961A1 true WO2018129961A1 (fr) 2018-07-19

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CN (1) CN106602733B (fr)
WO (1) WO2018129961A1 (fr)

Cited By (9)

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Publication number Priority date Publication date Assignee Title
CN108847706A (zh) * 2018-09-03 2018-11-20 北京有感科技有限责任公司 一种多频率无线充电装置及其应用
CN109787373A (zh) * 2019-03-15 2019-05-21 国网黑龙江省电力有限公司电力科学研究院 一种互操作无线充电信息接收电路
CN110391698A (zh) * 2019-04-26 2019-10-29 苏州工业职业技术学院 多用无线充电器
CN112928828A (zh) * 2021-02-05 2021-06-08 郑州轻工业大学 一种可调频率的单逆变器输出多频正弦波装置
CN113396520A (zh) * 2019-05-29 2021-09-14 华为技术有限公司 一种无线电力接收电路
CN113472087A (zh) * 2021-06-21 2021-10-01 国网安徽省电力有限公司检修分公司 一种发射线圈复用的能量发射装置、充电系统及机器人
CN114851869A (zh) * 2022-04-14 2022-08-05 河南师范大学 一种电车充电用无线充电系统及构成该系统的磁耦合结构
CN115230500A (zh) * 2022-07-23 2022-10-25 广西电网有限责任公司电力科学研究院 基于屏蔽板耦合电压检测位置的电动汽车无线充电系统
CN115833407A (zh) * 2022-12-29 2023-03-21 福州大学 利用自解耦线圈实现互操作性的无线充电系统

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CN106602733B (zh) * 2017-01-13 2020-05-15 上海蔚来汽车有限公司 多谐振电路并联的磁耦合共振电能发射端、接收端及系统
WO2018196411A1 (fr) * 2017-04-28 2018-11-01 中惠创智无线供电技术有限公司 Système et procédé de gestion de puissance reposant sur une transmission d'énergie électrique sans fil
CN106961165B (zh) * 2017-05-23 2020-02-07 宁波微鹅电子科技有限公司 无线电能传输电路、无线电能发射端和无线电能接收端
CN107220446A (zh) * 2017-06-02 2017-09-29 深圳市皇驰科技有限公司 一种单发射对四接收线圈电动汽车静态无线供电系统的建模方法
US10579916B2 (en) * 2017-07-07 2020-03-03 Integrated Device Technology, Inc. Low power magnetic secure transmission system
CN107240963B (zh) * 2017-08-11 2020-03-10 宁波微鹅电子科技有限公司 无线电能接收电路
CN110165790A (zh) * 2019-04-12 2019-08-23 江西崇政科技有限公司 一种共振磁耦合无线供电工艺
CN111064287A (zh) * 2019-10-17 2020-04-24 国网宁夏电力有限公司电力科学研究院 一种双通道nfc接收及充电装置
CN115483765A (zh) * 2021-05-31 2022-12-16 华为技术有限公司 无线充电接收设备、电子设备和无线充电系统
CN116014913B (zh) * 2022-12-12 2023-07-14 中国矿业大学 基于混合谐振的抗偏移无线电能传输系统及参数优化方法

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CN106602733A (zh) * 2017-01-13 2017-04-26 上海蔚来汽车有限公司 多谐振电路并联的磁耦合共振电能发射端、接收端及系统

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CN204835719U (zh) * 2015-06-02 2015-12-02 介面光电股份有限公司 无线充电装置
CN106300574A (zh) * 2015-06-02 2017-01-04 介面光电股份有限公司 无线充电装置及系统
CN105186714A (zh) * 2015-09-10 2015-12-23 胡江浩 一种低功率无线充电电路拓扑结构
CN105186718A (zh) * 2015-10-22 2015-12-23 重庆大学 复合谐振式ecpt系统及其参数设计方法
CN106602733A (zh) * 2017-01-13 2017-04-26 上海蔚来汽车有限公司 多谐振电路并联的磁耦合共振电能发射端、接收端及系统

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108847706A (zh) * 2018-09-03 2018-11-20 北京有感科技有限责任公司 一种多频率无线充电装置及其应用
CN109787373A (zh) * 2019-03-15 2019-05-21 国网黑龙江省电力有限公司电力科学研究院 一种互操作无线充电信息接收电路
CN109787373B (zh) * 2019-03-15 2022-08-12 国网黑龙江省电力有限公司电力科学研究院 一种互操作无线充电信息接收电路
CN110391698A (zh) * 2019-04-26 2019-10-29 苏州工业职业技术学院 多用无线充电器
CN113396520A (zh) * 2019-05-29 2021-09-14 华为技术有限公司 一种无线电力接收电路
CN112928828A (zh) * 2021-02-05 2021-06-08 郑州轻工业大学 一种可调频率的单逆变器输出多频正弦波装置
CN113472087A (zh) * 2021-06-21 2021-10-01 国网安徽省电力有限公司检修分公司 一种发射线圈复用的能量发射装置、充电系统及机器人
CN114851869A (zh) * 2022-04-14 2022-08-05 河南师范大学 一种电车充电用无线充电系统及构成该系统的磁耦合结构
CN115230500A (zh) * 2022-07-23 2022-10-25 广西电网有限责任公司电力科学研究院 基于屏蔽板耦合电压检测位置的电动汽车无线充电系统
CN115833407A (zh) * 2022-12-29 2023-03-21 福州大学 利用自解耦线圈实现互操作性的无线充电系统

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