WO2016058214A1 - Appareil et procédé de contrôle et de protection pour système de charge sans fil à couplage de champ électrique - Google Patents

Appareil et procédé de contrôle et de protection pour système de charge sans fil à couplage de champ électrique Download PDF

Info

Publication number
WO2016058214A1
WO2016058214A1 PCT/CN2014/089168 CN2014089168W WO2016058214A1 WO 2016058214 A1 WO2016058214 A1 WO 2016058214A1 CN 2014089168 W CN2014089168 W CN 2014089168W WO 2016058214 A1 WO2016058214 A1 WO 2016058214A1
Authority
WO
WIPO (PCT)
Prior art keywords
charging
current
voltage
monitoring
detection
Prior art date
Application number
PCT/CN2014/089168
Other languages
English (en)
Chinese (zh)
Inventor
汤晓君
娄阳
王金明
管智岑
徐萍
Original Assignee
江苏嘉钰新能源技术有限公司
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 江苏嘉钰新能源技术有限公司 filed Critical 江苏嘉钰新能源技术有限公司
Publication of WO2016058214A1 publication Critical patent/WO2016058214A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators

Definitions

  • the present invention relates to the field of wireless charging, and more particularly to the field of wireless charging based on electric field coupling.
  • wireless charging methods include methods such as electromagnetic induction, magnetic resonance, and microwave. These charging methods are all in one coil. In the range of coil alignment, the electromagnetic field is very strong, and it is difficult to implement radio wave wireless communication. If optical signals are transmitted by optical means, it is susceptible to dust, leaves, paper dust, etc.; Conventional wireless charging method, because of the presence of the coil, causes the resistance in the coil to consume part of the energy, and the charging efficiency thereof is difficult to improve.
  • the wireless charging method and device are equipped with a wireless communication device and a voltage, current and temperature detecting device for inter-parameter communication between the charged device and the charging device, and on the basis of these parameters, different pairs are implemented on the same charging device.
  • the rated voltage is wirelessly charged by the charging device.
  • the patent proposes a monitoring and protection device for an electric field coupled wireless charging system that is bidirectionally monitored by a charging device and a charging device.
  • the technical solution adopted by the device of the present invention is:
  • a monitoring and protection device for an electric field coupled wireless charging system comprising: a wireless charging system; and a charged device parameter monitoring device and a charging device parameter monitoring device for monitoring and protecting the wireless charging system;
  • the mains grid voltage V1 is connected to the first rectifier bridge T1
  • the positive end of the first rectifier bridge T1 is connected to the switch K1 and the resistor R1, respectively
  • the other end of the switch K1 and the resistor R1 is connected to the first filter capacitor C1
  • a filter capacitor C1 is connected at both ends of the inverter to the two input terminals, and the direct current is converted into an intermediate frequency alternating current, and the first output end of the inverter is sequentially connected to the first charging device plate and the first charged device plate
  • the second output end of the transformer is connected to the second charging device plate and the second charged device plate in sequence, and the other end of the first charged device plate and the second charged device plate are respectively connected to the second rectification Two input ends of the bridge T2, the two output ends of the second rectifier bridge T 2 are
  • the parameter monitoring device includes a controller, a second voltage detection, a second current detection, a second temperature detection, and a second wireless transmission a second normally closed relay, a second closed switch, a liquid crystal display, an alarm, the controller and the second voltage detection, the second current detection, the second temperature detection, the second wireless transmission device, and the second normally closed
  • the relay, the liquid crystal display and the alarm are connected, the second normally closed relay and the second closed switch are connected, and the controller is used for comparing and determining the operating condition of the charged device parameter and the charging device parameter, and controlling the switch and the second normally closed relay.
  • first charged device plate and the second charged device plate are all mounted on the chassis of the electric vehicle, parallel to the ground, and the electrode plate is covered by the insulating sheath.
  • the wireless transmission device is used for wireless signal data transmission, and is installed in a radio mode, a photoelectric mode, or an ultrasonic mode, or both.
  • microprocessor is a single chip microcomputer, or a digital processor, or an Arm system.
  • the microprocessor stores a rated voltage, a rated charging current, and an operating temperature range of the battery.
  • controller is an Omron programmable controller.
  • the charged device transmits the rated voltage, current, and operating temperature range of the battery to the charging device through its wireless data transmission device; during the charging process, the charged device detects the battery charging voltage, current, and current in real time.
  • the operating temperature is sent to the charging device through the wireless data transmission device.
  • the microprocessor compares the monitored current with the rated working current, the operating temperature and the battery operating temperature, and also the charging voltage and the rated voltage of the battery. For comparison, if the actual voltage is less than or equal to the rated voltage and the current is greater than the rated current, it indicates that the charging system is abnormal, the first normally closed relay is disconnected, and the charging circuit is disconnected. If the operating temperature of the charged device is higher than the allowable battery The operating temperature range, also disconnects the first normally closed relay to prevent accidents, the first normally closed relay must manually close the closed switch on the charged device to close it again;
  • the charging device will only close the switch K1 and start the inverter after receiving the charging request from the charged device. Otherwise, the inverter is always in the off state; whether in the charging state or the non-charging state, the charging device At the same time, monitor its working voltage, working current and working temperature, and compare the monitoring result with the rated working voltage, rated working current and working temperature range of the charging device. If one of the items exceeds the corresponding rated value, the second normally closed is disconnected. In addition, the charging device simultaneously performs the comparison in step 1). If the abnormal phenomenon occurs in step 1), the controller on the charging device similarly turns off the charging circuit through the second relay to ensure the charging system during charging. Safety, while displaying the type of fault on the display and activating the alarm, the second normally closed relay on the charging device can only be closed when the closing switch is pressed.
  • the electric field-coupled wireless charging method has no coil, the loss due to the large internal resistance existing in the coil can be avoided, and the charging efficiency is high. Moreover, the method has no electromagnetic leakage, so there is no electromagnetic radiation around the wireless charging system. For the human body, its safety is good.
  • the invention makes the wireless charging system based on electric field coupling safe and reliable, and can quickly detect and effectively protect the charged device and the charging device in the event of a fault or abnormality, thereby reducing or even avoiding the wireless failure due to system failure. In addition to the damage caused by the components of the charging system, it can also ensure that in the event of a malfunction, the body of the person or animal surrounding the wireless charging system is not injured.
  • the invention adopts the double relay protection control, can effectively protect the safety of the articles and personnel on the electric vehicle caused by the leakage in time, and further improves the safety of the electric vehicle.
  • the present invention adopts a method of exchanging information before charging, thereby avoiding burning of the battery due to a change in the rated voltage of the charged device, which improves the reliability of the monitoring and protection system.
  • radio communication equipment is currently the most mature and relatively inexpensive wireless communication equipment. Compared with optical communication methods, it can avoid the influence of obstacles such as dust and leaves, compared with conventional electromagnetic induction, magnetic resonance and The microwave wireless charging method, the method uses the wireless communication method to exchange the monitoring parameter information between the charging device and the charged device, and can effectively avoid the influence of the space electromagnetic field, which further improves the reliability of the monitoring and protection system.
  • FIG. 1 is a schematic structural view of a charging device based on electric field coupling according to the present invention
  • FIG. 2 is a block diagram showing the principle of an automatic monitoring and protection system on a device to be charged according to the present invention
  • FIG. 3 is a block diagram showing the principle of an automatic monitoring and protection system on the charging device of the present invention.
  • Figure 4 is a working flow chart of the automatic monitoring and protection system of the present invention.
  • 1 is the inverter
  • 2 is the first charging device plate
  • 3 is the second charging device plate
  • 4 is the first charged device plate
  • 5 is the second charged device plate
  • 6 is insulated Jacket
  • V 1 is the mains grid
  • T 1 is the first rectifier bridge
  • C 1 is the first filter capacitor
  • V 2 is the battery
  • T 2 is the second rectifier bridge
  • C 2 is the second filter capacitor
  • R 1 is Resistance
  • K 1 is a switch.
  • the present invention is described in connection with an automatic protection device for an electric vehicle based wireless charging device of an electric vehicle.
  • V1 is the mains grid voltage, which can be 380V three-phase power, 220V two-phase power, or special power conversion.
  • Output voltage T1 is the first rectifier bridge
  • C1 is the first filter capacitor
  • C1 is filtered by the DC filter after T1 rectification to obtain less harmonic DC current
  • the inverter becomes intermediate frequency AC
  • Two different capacitive couplings are connected to the charging circuit of the electric vehicle.
  • One electrode plate of each capacitor is connected to the output end of the inverter on the charging device, and the other electrode plate is mounted on the chassis of the electric vehicle, substantially parallel to the ground, connected to the charging circuit of the electric vehicle, and the electrode plate is insulated Set of quilts.
  • the charging circuit of the electric vehicle is connected with a second rectifier bridge T2 and a second filter capacitor C2, and the DC voltage V2 is obtained to charge the battery. Due to the high-frequency and low-frequency characteristics of the capacitor, the AC output from the inverter is coupled to the charging circuit of the electric vehicle through a capacitive electric field.
  • the automatic monitoring and protection system includes the parameter detection and protection part on the device to be charged (as shown in Figure 2), and the parameter monitoring and protection part on the charging device (as shown in Figure 3).
  • the former is installed on the electric vehicle, then Installed on the charging device.
  • the structure diagram is as shown in FIG. 2, the first voltage detection is to detect the voltage across the second filter capacitor C2 in FIG. 1, and the first current detection is to monitor FIG.
  • the current at the output of the second rectifier bridge T2 can also be the current at its input. If the input is detected, the AC current sensor is used. If it is the output, the DC current sensor is used; the first normally closed relay is connected in series. 1 in the AC input of T2; the first temperature detection is to monitor the temperature of the battery; the first wireless transmission device is installed between the plates.
  • the first voltage detection, the first current detection, and the first temperature detection signals are all transmitted to the microprocessor, and the microprocessor further controls the first normally closed relay and the first wireless transmission system.
  • the microprocessor of this part can be a single-chip computer (such as C51 single-chip microcomputer), a digital processor, or an embedded system such as Arm.
  • the closed switch is used to forcibly close the normally closed normally closed relay so that the system can be re-entered after the inspection.
  • the structure diagram is as shown in FIG. 3, and the second voltage detection is to detect the voltage across the first filter capacitor C1 in FIG. 1 (input voltage at both ends of the inverter),
  • the second current detection is to monitor the current at the output end of the first rectifier bridge T1 in FIG. 1, or the current at the input end thereof, if the detection input terminal, the alternating current sensor is used, and if it is the output terminal, the direct current sensor is used;
  • the normally closed relay is connected in series with the AC input of T1 in Figure 1; the second wireless transmission is mounted between the plates.
  • this part also has obvious Screen and alarm system, and this part of the central processor is a controller (such as Omron programmable controller).
  • the controller controls the inverter 1 of Fig. 1 in addition to the voltage, current and temperature signals, the control of the second normally closed relay, the display screen and the alarm system.
  • the workflow of the automatic monitoring and protection system of the wireless charging system is as shown in FIG.
  • the monitored device and the monitoring device on the charging device operate in parallel.
  • the charging circuit (charged device) on the electric vehicle sends the rated current, rated voltage and operating temperature range of the electric battery to the charging device, and then detects its actual working voltage and works.
  • the second wireless transmission device After the charging device is docked, the second wireless transmission device first receives the rated rated current, the rated voltage and the operating temperature range of the electric vehicle battery, and stores it in the memory of the controller; and then detects the charging device's own line.

Abstract

L'invention concerne un appareil et un procédé de contrôle et de protection pour un système de charge sans fil à couplage de champ électrique. L'appareil de contrôle et de protection comprend un système de charge sans fil ainsi qu'un appareil de contrôle de paramètre de dispositif chargé et un appareil de contrôle de paramètre d'appareil de charge qui servent à contrôler et à protéger le système de charge sans fil ; et, lorsqu'un processus de charge commence, un dispositif chargé envoie une plage nominale de tension, de courant et de température de fonctionnement d'une batterie d'accumulateurs à un appareil de charge, et pendant le processus de charge, le dispositif chargé détecte la tension, le courant et la température de fonctionnement de charge en temps réel et l'envoie à l'appareil de charge. L'appareil de charge contrôle le courant, la tension de fonctionnement et la température de fonctionnement <i /> en tant que tels simultanément, et un système de commande sur l'appareil de charge coupe un circuit de charge au moyen d'un relais afin de garantir la sécurité du système de charge pendant le processus de charge et en affiche la raison sur un affichage. L'invention permet de réaliser la détection de manière fiable et rapide, et de garantir la sécurité de charge.
PCT/CN2014/089168 2014-10-14 2014-10-22 Appareil et procédé de contrôle et de protection pour système de charge sans fil à couplage de champ électrique WO2016058214A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201410543387.5A CN104319740A (zh) 2014-10-14 2014-10-14 一种电场耦合无线充电系统的监测与保护装置及其方法
CN201410543387.5 2014-10-14

Publications (1)

Publication Number Publication Date
WO2016058214A1 true WO2016058214A1 (fr) 2016-04-21

Family

ID=52374939

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/089168 WO2016058214A1 (fr) 2014-10-14 2014-10-22 Appareil et procédé de contrôle et de protection pour système de charge sans fil à couplage de champ électrique

Country Status (2)

Country Link
CN (1) CN104319740A (fr)
WO (1) WO2016058214A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108206686A (zh) * 2018-01-19 2018-06-26 国网宁夏电力有限公司固原供电公司 插座延时停电报警装置
CN109334478A (zh) * 2018-11-22 2019-02-15 国网江苏省电力有限公司南通供电分公司 一种电动汽车无线智能充电系统及其充电方法
CN114179644A (zh) * 2020-09-15 2022-03-15 北京新能源汽车股份有限公司 一种无线充电控制方法、装置及车辆
CN114179647A (zh) * 2020-09-15 2022-03-15 北京新能源汽车股份有限公司 一种无线充电控制方法、装置和车辆
CN114179645A (zh) * 2020-09-15 2022-03-15 北京新能源汽车股份有限公司 一种无线充电控制方法、装置和车辆

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104880635B (zh) * 2015-06-10 2017-06-27 宁波力芯科信息科技有限公司 一种用于无线充电接收器的检测装置
CN106998083A (zh) * 2016-01-26 2017-08-01 成都多普力电子科技有限公司 一种电动汽车无线充电系统
CN106154081A (zh) * 2016-06-21 2016-11-23 奇瑞汽车股份有限公司 大功率无线充电装置检测设备
CN106526496B (zh) * 2016-12-09 2019-08-27 宁德时代新能源科技股份有限公司 故障检测方法和装置
CN110892600B (zh) * 2017-07-10 2023-08-04 Abb电动交通有限公司 充电系统
CN110611353A (zh) * 2019-10-10 2019-12-24 密码精灵有限公司 智能门锁的充电控制方法、装置及智能门锁
CN110970982B (zh) * 2019-12-31 2021-11-23 杭州冰汽科技有限公司 一种可变供电单元位置的供电桌
CN111060777A (zh) * 2020-03-18 2020-04-24 天津德沃尔智能科技有限公司 机器人无线充电监测模块
CN114252782B (zh) * 2021-11-05 2024-01-26 中国航发南方工业有限公司 一种集成式在线监测装置
CN115508736B (zh) * 2022-11-15 2023-02-28 智洋创新科技股份有限公司 一种基于大数据的直流电源在线充电性能测试系统及方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102882286A (zh) * 2012-09-25 2013-01-16 重庆大学 一种基于电场耦合的无线电能传输系统
US20130154385A1 (en) * 2011-12-16 2013-06-20 Semiconductor Energy Laboratory Co., Ltd. Power receiving device and power feeding system
WO2013128641A1 (fr) * 2012-03-02 2013-09-06 株式会社日立製作所 Dispositif d'alimentation électrique sans contact
CN103493387A (zh) * 2011-09-07 2014-01-01 株式会社村田制作所 电力传输系统以及送电装置
CN103907265A (zh) * 2011-10-28 2014-07-02 株式会社村田制作所 受电装置、送电装置及无线电力传输系统

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202159997U (zh) * 2011-08-02 2012-03-07 无锡新纬电池有限公司 一种锂电池系统
CN204696809U (zh) * 2013-01-21 2015-10-07 株式会社村田制作所 受电装置、送电装置及电力输送系统
CN103217955B (zh) * 2013-03-25 2015-12-23 东莞宇龙通信科技有限公司 一种用于无线充电远程控制的系统及其远程控制方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103493387A (zh) * 2011-09-07 2014-01-01 株式会社村田制作所 电力传输系统以及送电装置
CN103907265A (zh) * 2011-10-28 2014-07-02 株式会社村田制作所 受电装置、送电装置及无线电力传输系统
US20130154385A1 (en) * 2011-12-16 2013-06-20 Semiconductor Energy Laboratory Co., Ltd. Power receiving device and power feeding system
WO2013128641A1 (fr) * 2012-03-02 2013-09-06 株式会社日立製作所 Dispositif d'alimentation électrique sans contact
CN102882286A (zh) * 2012-09-25 2013-01-16 重庆大学 一种基于电场耦合的无线电能传输系统

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108206686A (zh) * 2018-01-19 2018-06-26 国网宁夏电力有限公司固原供电公司 插座延时停电报警装置
CN108206686B (zh) * 2018-01-19 2024-04-02 国网宁夏电力有限公司固原供电公司 插座延时停电报警装置
CN109334478A (zh) * 2018-11-22 2019-02-15 国网江苏省电力有限公司南通供电分公司 一种电动汽车无线智能充电系统及其充电方法
CN114179644A (zh) * 2020-09-15 2022-03-15 北京新能源汽车股份有限公司 一种无线充电控制方法、装置及车辆
CN114179647A (zh) * 2020-09-15 2022-03-15 北京新能源汽车股份有限公司 一种无线充电控制方法、装置和车辆
CN114179645A (zh) * 2020-09-15 2022-03-15 北京新能源汽车股份有限公司 一种无线充电控制方法、装置和车辆

Also Published As

Publication number Publication date
CN104319740A (zh) 2015-01-28

Similar Documents

Publication Publication Date Title
WO2016058214A1 (fr) Appareil et procédé de contrôle et de protection pour système de charge sans fil à couplage de champ électrique
CN103419643B (zh) 一种高压配电控制方法及其装置
CN202975125U (zh) 接地线辅助验电装置
CN102927656B (zh) 空调辅助电加热器的故障检测方法及故障保护电路
CN104133131B (zh) 一种igbt驱动故障检测及诊断方法
CN205982461U (zh) 一种低压配电柜用电检测装置
CN203398755U (zh) 三相漏电保护及断电自动恢复装置
CN205353281U (zh) 一种改进的直流系统绝缘监测装置
CN203519737U (zh) 具有急停和绝缘保护功能的电动车辆测试系统
CN105305660A (zh) 一种非接触充电开路保护装置
CN202721505U (zh) 一种新型智能快速充电无线充电器
CN105675966A (zh) 一种基于差值计算方式的故障电弧检测方法及其保护装置
CN106569145A (zh) 环网柜ups电源综合监测装置及监测方法
CN210129032U (zh) 一种在线监测电流互感器故障的装置
CN210109280U (zh) 一种电力直流电源蓄电池远方核容系统
CN105510842A (zh) 一种动力电池包多电芯焊点状态监控系统及其监控方法
CN103311966B (zh) 应用于并联电池组的电池自适应控制装置和方法
CN102183707A (zh) 一种高压接地在线监测预警装置
CN203561875U (zh) 一种远程控制的电热水器故障诊断系统
CN105738688A (zh) 一种基于高压设备泄漏电流的验电及闭锁装置
CN217820779U (zh) 一种配网电缆泄漏电流的在线监测装置
CN203543694U (zh) 一种高压配电控制装置
CN111308297A (zh) 绝缘检测装置
CN105762906B (zh) 一种阀厅作业平台车智能充电装置及方法
CN204905993U (zh) 智慧型双电源切换器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14903905

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14903905

Country of ref document: EP

Kind code of ref document: A1