CN107878237A - 一种电动拖拉机无线充电装置 - Google Patents

一种电动拖拉机无线充电装置 Download PDF

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CN107878237A
CN107878237A CN201711151313.7A CN201711151313A CN107878237A CN 107878237 A CN107878237 A CN 107878237A CN 201711151313 A CN201711151313 A CN 201711151313A CN 107878237 A CN107878237 A CN 107878237A
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electric tractor
wireless charging
radio energy
charging device
electric
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闫银发
韩守强
刘莫尘
刘双喜
李法德
宋占华
盖顺华
许荣浩
李承�
王广瑞
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Shandong Agricultural University
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/12—Inductive energy transfer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
    • H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
    • H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
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    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
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Abstract

本发明涉及一种电动拖拉机无线充电装置，包括主控制器、直流电源模块、滤波电容、逆变驱动模块、逆变桥、发射端谐振回路、接收端谐振回路、整流桥、LC滤波电路和电动拖拉机动力电池包；发射端谐振电路由无线电能发射线圈和谐振补偿电容串联组成；接收端谐振电路由无线电能接收线圈和谐振补偿电容串联组成；本发明能够对电动拖拉机动力电池包进行无线充电，不仅安全、方便、快捷，更为实现无人驾驶电动拖拉机的自主充电过程奠定了基础。

Description

一种电动拖拉机无线充电装置
技术领域
本发明涉及无线充电领域，具体涉及一种针对电动拖拉机进行无线充电的装置。
背景技术
能源短缺和环境污染已成为制约人类社会可持续发展的重要因素，采用绿色环保能源将是未来农业机械发展的新趋势，电动拖拉机作为一种新型绿色农业机械，将得到广泛的推广和应用。
目前，对于电动拖拉机动力电池包的充电方式主要采用有线充电，但是有线充电会使得充电操作比较麻烦，并且充电插头在插拔过程中容易发生接触不良和漏电问题，产生电火花，尤其是在进行大功率充电过程中，会带来极大的安全隐患。对于电动拖拉机来说，其作业环境较为恶劣，尤其是地面大多凹凸不平，因此无线电能接收线圈不能像普通电动汽车一样安装在电动拖拉机底盘。
发明内容
为了解决上述问题，本发明提供了一种电动拖拉机无线充电装置；该电动拖拉机无线充电的装置，无线电能发射线圈嵌入到墙体，无线电能接收线圈更安装在车身前方，基于谐振耦合原理，能量由无线电能发射线圈耦合到无线电能接收线圈，对电动拖拉机动力电池包进行无线充电。
一种电动拖拉机无线充电装置，包括主控制器、直流电源模块、滤波电容、逆变驱动模块、逆变桥、发射端谐振回路、接收端谐振回路、整流桥、LC滤波电路和电动拖拉机动力电池包；
所述主控制器由嵌入式处理单元和CAN通讯模块组成，嵌入式处理单元通过CAN通讯模块与直流电源模块通讯，根据电源模块通讯协议调节直流电源模块输出功率；通过信号线与逆变驱动模块连接，调节嵌入式处理单元输出PWM信号频率，从而通过逆变驱动模块来调节逆变电路输出交流电频率。
所述直流电源模块，用于将380V三相交流电转换成直流电输出，直流电源模块通过CAN总线与主控制器进行通讯。
所述滤波电容将直流电滤波处理后输入到逆变桥。
所述逆变驱动模块，用于将主控制器产生的PWM信号转换IGBT驱动信号，控制IGBT的导通和关断。
所述逆变桥采用IGBT构成的电压源逆变电路，将滤波后直流电转换为高频交流电，并从逆变桥输出端通过电源线发射端谐振回路输入端与连接。
所述发射端谐振电路由无线电能发射线圈和谐振补偿电容串联组成；所述无线电能发射线圈嵌入到墙体，用于产生高频谐振磁场。
所述接收端谐振电路由无线电能接收线圈和谐振补偿电容串联组成；所述无线电能接收线圈固定在电动拖拉机前方车头位置，且与无线电能发射线圈平行并且中心对正，当无线电能接收线圈的谐振频率与无线电能发射线圈的固定谐振频率相同时产生谐振，基于谐振耦合原理，能量由无线电能发射线圈耦合到无线电能接收线圈，并感生出交流电；所述接收端谐振电路输出交流电串联连接至整流桥。
所述整流桥采用由二极管组成的全桥整流电路，整流桥将交流电转化为脉动直流电，脉动直流电连接至LC滤波电路进行处理。
所述LC滤波电路由电感和电容组成，将脉动直流电流滤波处理成没有纹波的直流电流，传输给电动拖拉机动力电池包进行充电。
所述电动拖拉机动力电池包存储直流电流供电动拖拉机工作。
进一步的：
所述嵌入式处理单元由STM32F407ZET6最小系统组成。
所述CAN通讯模块由STM32F407ZET6芯片自带CAN总线控制器及CAN收发器TJA1050组成。
所述直流电源模块为英可瑞EVR700-20000C。
所述逆变驱动模块为CONCEPT IGBT驱动板。
所述IGBT为CM100DY-12H模块。
所述LC滤波电路由smd系列电感和PHILIPS Q系列电容组成。
所述滤波电容和谐振补偿电容均为型号0.1UF 3000VAC的金属化薄膜高压谐振电容。
本发明相较于现有技术，其有益之处在于：
1、能够对电动拖拉机动力电池包进行无线充电，不仅安全、方便、快捷，更为实现无人驾驶电动拖拉机的自主充电过程奠定了基础。
2、无线电能接收线圈安装在车身前方，无线电能发射线圈嵌入到墙体，避免因为电动拖拉机的恶劣地面作业环境对无线充电装置的结构造成破坏。
附图说明
图1是一种电动拖拉机无线充电装置拓扑图。
图中：1、直流电源模块，2、滤波电容3、逆变桥，4、谐振电容，5、无线电能发射线圈，6、无线电能接收线圈，7、整流桥，8、LC滤波电路，9、电动拖拉机动力电池包。
具体实施方式
实施例1：参照图1。一种电动拖拉机无线充电装置，包括主控制器、直流电源模块、滤波电容、逆变驱动模块、逆变桥、发射端谐振回路、接收端谐振回路、整流桥和电动拖拉机动力电池包；
所述主控制器由嵌入式处理单元和CAN通讯模块组成；所述嵌入式处理单元由STM32F407ZET6最小系统组成，所述CAN通讯模块由STM32F407ZET6芯片自带CAN总线控制器及CAN收发器TJA1050组成；嵌入式处理单元通过CAN通讯模块与直流电源模块通讯，根据电源模块通讯协议调节直流电源模块输出功率；通过信号线与逆变驱动模块连接，调节嵌入式处理单元输出PWM信号频率，从而通过逆变驱动模块来调节逆变电路输出交流电频率。
所述直流电源模块，选用英可瑞EVR700-20000C，用于将380V三相交流电转换成直流电输出，所述直流电源模块通过CAN总线与主控制器进行通讯。
所述滤波电容将直流电滤波处理后输入到逆变桥。
所述逆变驱动模块，选用CONCEPT IGBT驱动板，其通过信号线与主控制器连接，用于将主控制器产生的PWM信号转换IGBT驱动信号，控制IGBT的导通和关断。
所述逆变桥采用IGBT构成的电压源逆变电路，所述IGBT选用CM100DY-12H模块，将直流电转换为高频交流电，所述逆变桥的输出端与发射端谐振回路输入端通过电源线连接。
所述发射端谐振电路由无线电能发射线圈和谐振补偿电容串联组成；所述无线电能发射线圈嵌入到墙体，用于产生高频谐振磁场。
所述接收端谐振电路由无线电能接收线圈和谐振补偿电容串联组成，所述无线电能接收线圈固定在电动拖拉机前方车头位置；所述无线电能接收线圈和无线电能发射线圈平行并且中心对正，当无线电能接收线圈的谐振频率与无线电能发射线圈的固定谐振频率相同时产生谐振，基于谐振耦合原理，能量由无线电能发射线圈耦合到无线电能接收线圈，并感生出交流电，所述无线电能发射线圈和无线电能接收线圈均由利兹线绕制。
所述接收端谐振电路输出交流电串联连接至整流桥，所述整流桥采用由二极管40cpq100PBF组成的全桥整流电路，所述整流桥将交流电转化为脉动直流电，所述脉动直流电经LC滤波电路处理后，用于对动拖拉机动力电池包进行充电。
所述LC滤波电路由smd系列电感和PHILIPS Q系列电容组成，将脉动直流电流滤波处理后形成的没有纹波的直流电流。
所述滤波电容和谐振补偿电容均选用型号为0.1UF 3000VAC的金属化薄膜高压谐振电容。

Claims (9)

1.一种电动拖拉机无线充电装置，其特征在于包括主控制器、直流电源模块、滤波电容、逆变驱动模块、逆变桥、发射端谐振回路、接收端谐振回路、整流桥、LC滤波电路和电动拖拉机动力电池包；
所述主控制器包括嵌入式处理单元和CAN通讯模块；所述嵌入式处理单元通过CAN通讯模块与直流电源模块通讯，根据电源模块通讯协议调节直流电源模块输出功率；并通过信号线与逆变驱动模块连接，调节嵌入式处理单元输出PWM信号频率，通过逆变驱动模块来调节逆变电路输出交流电频率；
所述直流电源模块，用于将380V三相交流电转换成直流电输出，直流电源模块通过CAN总线与主控制器进行通讯；
所述滤波电容将直流电滤波处理后输入到逆变桥；
所述逆变驱动模块，用于将主控制器产生的PWM信号转换IGBT驱动信号，控制IGBT的导通和关断；
所述逆变桥采用IGBT构成的电压源逆变电路，将滤波后直流电转换为高频交流电，并从逆变桥输出端通过电源线发射端谐振回路输入端与连接；
所述发射端谐振电路由无线电能发射线圈和谐振补偿电容串联组成；所述无线电能发射线圈嵌入到墙体，用于产生高频谐振磁场；
所述接收端谐振电路包括无线电能接收线圈和谐振补偿电容串联；所述无线电能接收线圈固定在电动拖拉机前方车头，且与无线电能发射线圈中心对正平行设置；当无线电能接收线圈的谐振频率与无线电能发射线圈的固定谐振频率相同时产生谐振，基于谐振耦合原理，能量由无线电能发射线圈耦合到无线电能接收线圈，并感生出交流电；所述接收端谐振电路输出交流电串联连接至整流桥；
所述LC滤波电路包括电感和电容；LC滤波电路将脉动直流电流滤波处理成没有纹波的直流电流，传输给电动拖拉机动力电池包进行充电；
所述电动拖拉机动力电池包存储直流电流给电动拖拉机提供动力。
2.如权利要求1所述的一种电动拖拉机无线充电装置，其特征在于所述整流桥采用由二极管组成的全桥整流电路，整流桥将交流电转化为脉动直流电，脉动直流电连接至LC滤波电路进行处理。
3.如权利要求1所述的一种电动拖拉机无线充电装置，其特征在于所述嵌入式处理单元由STM32F407ZET6最小系统组成。
4.如权利要求1所述的一种电动拖拉机无线充电装置，其特征在于所述CAN通讯模块由STM32F407ZET6芯片自带CAN总线控制器及CAN收发器TJA1050组成。
5.如权利要求1所述的一种电动拖拉机无线充电装置，其特征在于所述直流电源模块为英可瑞EVR700-20000C。
6.如权利要求1所述的一种电动拖拉机无线充电装置，其特征在于所述逆变驱动模块为CONCEPT IGBT驱动板。
7.如权利要求1所述的一种电动拖拉机无线充电装置，其特征在于所述IGBT为CM100DY-12H模块。
8.如权利要求1所述的一种电动拖拉机无线充电装置，其特征在于所述LC滤波电路由smd系列电感和PHILIPS Q系列电容组成。
9.如权利要求1所述的一种电动拖拉机无线充电装置，其特征在于所述滤波电容和谐振补偿电容均为型号0.1UF 3000VAC的金属化薄膜高压谐振电容。
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