CN113708505A - 一种用于gis状态观测视频传感器无线充电的新型线圈 - Google Patents

一种用于gis状态观测视频传感器无线充电的新型线圈 Download PDF

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CN113708505A
CN113708505A CN202110877720.6A CN202110877720A CN113708505A CN 113708505 A CN113708505 A CN 113708505A CN 202110877720 A CN202110877720 A CN 202110877720A CN 113708505 A CN113708505 A CN 113708505A
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coil
gis
charging
video sensor
wireless
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闻枫
张国奇
***
韩晨
武书琪
裴文杰
张翔
张大上
刘嘉明
马建行
陈泽
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Nanjing University of Science and Technology
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/24—Circuit arrangements for boards or switchyards
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/0356—Mounting of monitoring devices, e.g. current transformers
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/065—Means for detecting or reacting to mechanical or electrical defects
    • 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
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    • 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
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    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
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    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00022—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using wireless data transmission
    • 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
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
    • 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
    • H02J50/005—Mechanical details of housing or structure aiming to accommodate the power transfer means, e.g. mechanical integration of coils, antennas or transducers into emitting or receiving devices
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    • 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
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0042—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries characterised by the mechanical construction
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20—Smart grids as enabling technology in buildings sector
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

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Abstract

本发明公开了一种用于GIS开关状态观测视频传感器无线充电的新型线圈，涉及无线电能传输领域，尤其涉及一种用于GIS状态观测视频传感器无线充电的新型线圈。该***包括充电检测部分、图像识别部分、无线通信部分以及新型耦合线圈DC线圈或DS线圈，DC线圈直线部分采取紧密排列，半圆部分留有一定的匝间距；DS线圈直导线部分留有一定的匝间距，半圆部分采用紧密排列；充电检测进行充电信息采集；图像识别进行开关位置状态识别，无线通信进行无线数据传输。本发明基于无线电能传输技术，解决了其他种类线圈与GIS圆形观察窗不匹配，匹配但抗偏移以及抗旋转偏移能力差的问题，解决问题的同时又节约铜材和安装空间，主要用于GIS圆形观察窗无线供电***。

Description

一种用于GIS状态观测视频传感器无线充电的新型线圈
技术领域
本发明属于无线电能传输领域，尤其涉及一种用于GIS状态观测视频传感器无线充电的新型线圈。
背景技术
随着我国电力***装机容量的增加，电网覆盖范围日益广泛，电力***的安全稳定运行倍受关注，GIS因其安全可靠、维护方便等优点，被广泛的应用于电力***中。但是目前GIS存在分合不彻底的情况，为电力***的安全运行增加了安全隐患，可以考虑通过观察开关触头的位置状态来判断是否分开彻底，但是GIS是一个密闭的空间，通过光学观察窗很难直接观察到开关触头开合是否彻底。可以考虑采用视频传感器进行采集开关触头位置状态信息，但传统的供电方式又相对繁琐，且GIS开关现场没有适用的电源供电，故采用无线供电方式不仅可以保持原有的密封结构而且方便安全可靠。
通常获取GIS开关位置状态的方法：开关动作后，由工作人员目视圆形观察窗获取开关位置状态。但由于视野狭窄，GIS内部光线不足，人工很难准确判断开关触头是否开合彻底。
通过摄像头观察开关位置状态的方式，为无线传感器部分供电是亟需解决的问题。然而场地没有匹配的电源供电，频繁的拆卸装置更换电池又操作繁琐，采用传统的充电方式需要频繁的插拔插头，使设备寿命变短、维护困难。
发明内容
本发明的目的在于提出了一种用于GIS状态观测视频传感器无线充电的新型线圈，解决了其他种类线圈与GIS光学观察窗不匹配，匹配但抗偏移以及抗旋转偏移能力差的问题，解决问题的同时又节约铜材和安装空间，同时为无线充电领域提供了一种新型的线圈结构。
实现本发明目的的技术方案：一种用于GIS状态观测视频传感器无线充电的新型线圈，该***包括充电检测部分、图像识别部分、无线通信部分以及新型耦合线圈；充电检测部分主要进行准备充电前必要信息采集；图像识别部分可以将开关在不同状态下的图像信息进行采集，再通过无线数据传输将视频信号传输到终端，终端进行视频信号解码实时分析处理开关的图像信息，最后得到隔离开关实际分合闸状态信息；无线通信部分主要把采集的内部装置充电信息传递到密封装置外的发射线圈装置，控制该耦合机构是否进行无线充电以及图像信息的传输。本发明基于无线电能传输技术，提出一种新型的线圈结构，为通过图像识别技术观察其动触头位置来判别GIS开关分合闸状态的视频传感器供电。
一种用于GIS状态观测视频传感器无线充电的新型线圈，为适应GIS圆形观察窗，将传统的矩形DD线圈改为半圆型的DC线圈或DS线圈，如图3所示，DC线圈直线部分采取紧密排列，半圆部分留有一定的匝间距；DS线圈直导线部分留有一定的匝间距，半圆部分采用紧密排列。发射线圈与接收线圈采取相同的尺寸。发射线圈由震荡电路激发产生交变磁场，接收端线圈产生磁谐振，实现能量的无线传输发射线圈在空间一点P(x,y,z)产生的磁场强度计算如下：
Figure BDA0003190936450000021
Figure BDA0003190936450000022
Figure BDA0003190936450000031
一种用于GIS状态观测视频传感器无线充电的新型DC线圈，满足发射接收线圈发生小范围的相对偏移，相对旋转偏移的充电要求。
一种用于GIS状态观测视频传感器无线充电的新型DC线圈，不破坏GIS内部密封的环境，定期使用充电部分对无线传感器部分进行无线充电，通过内部视频传感器，使用图像识别技术实时掌握GIS开关是否开合彻底的状态，包括如下步骤：
(1)GIS开关触头动作；
(2)视频传感器采集开关触头状态信息；
(3)视频传感器采集的图像信息通过无线通信模块将视频信号传输到信息处理终端；
(4)终端进行将视频信号解码，实时分析处理采集的图像信息，最后得到隔离开关实际分合闸状态信息。
(5)GIS开关再次动作，重复循环以上步骤。
所述一种用于GIS状态观测视频传感器无线充电的新型线圈，实现对内部视频传感器无线充电包括一下步骤：
(1)电源模块电量不足，发出充电信号；
(2)信号传输到无线通信模块，将充电信息传递给无线充电模块；
(3)检测收发线圈是否对准；
(4)无线充电模块发出充电指令给发射线圈；
(5)发射线圈发出交变磁场；
(6)接收线圈通过磁场变化，感应生电；
(7)开始无线充电；
(8)充电完成。
所述一种用于GIS状态观测视频传感器无线充电的新型线圈，其特征在于，解决了GIS封闭情况下无法完全观察到开关动触头状态的问题，以及现有的矩形DD型线圈与圆形光学观察窗不匹配问题。
本发明与现有技术相比，其显著的优点在于：改进过的圆形DC型线圈比矩形DD线圈在相同尺寸以及匝数下更加节约线材，且占用空间更小，无线电能传输性能和传统的DD线圈类似。而设计DS线圈在使用线材不超过传统DD线圈的情况下，且占用空间比DD线圈小，且接收发射线圈在发生小范围的相对横向偏移以及旋转偏移状态下，其无线充电的性能都优于传统的DD线圈。此处选取DC和DD线圈半径为15cm，匝间距为1cm，匝数为6匝，周长和面积计算如下：
Figure BDA0003190936450000041
Figure BDA0003190936450000042
选DS匝数为7匝，其他参数与DD线圈相同，计算各自周长为LDD＝8.4m，LDS＝8.398m；各自面积为SDD＝0.9m2，SDS＝0.07m2。显然DS线圈使用铜材量和占用面积也少于DD线圈。
附图说明
图1用于GIS状态观测视频传感器无线充电的布局图。
图2无线电能传输的耦合机构充电过程流程图。
图3新型圆形DC线圈、DS线圈和传统矩形DD线圈简化图。
图4新型圆形DC线圈传统矩形DD线圈的实验对比图。
图5新型圆形DS线圈和传统矩形DD线圈的实验对比图。
具体实施方式
下面结合附图和具体实施例，进一步说明本发明方案。
如图1所示，一种用于GIS状态观测视频传感器无线充电的新型线圈，该***包括充电检测部分、图像识别部分、无线通信部分以及新型耦合线圈；充电检测部分主要进行准备充电前必要信息采集；图像识别部分可以将开关在不同状态下的图像信息进行收集，再通过无线数据传输，将视频信号传输到终端进行实时分析处理，最后得到隔离开关实际分合闸状态信息；无线通信部分主要把采集的内部装置充电信息传递到密封装置外的发射线圈装置，控制该耦合机构是否进行无线充电以及图像信息的传输。
一种用于GIS状态观测视频传感器无线充电的新型DC线圈或DS线圈，其特征在于，为适应GIS圆形观察窗，将传统的矩形DD线圈改为半圆型的DC线或DS线圈，DC线圈直线部分采取紧密排列，半圆部分留有一定的匝间距；DS线圈直导线部分留有一定的匝间距，半圆部分采用紧密排列。发射线圈与接收线圈采取相同的尺寸。发射线圈由震荡电路激发产生交变磁场，在接收端线圈产生磁谐振，实现能量的无线传输。
一种用于GIS状态观测视频传感器无线充电的新型线圈，其特征在于，满足发射接收线圈发生小范围的相对偏移，相对旋转偏移的充电要求。
所述一种用于GIS状态观测视频传感器无线充电的新型线圈，解决了其他种类线圈与GIS光学观察窗不匹配，匹配但抗偏移以及抗旋转能力差的问题，同时为无线充电领域提供了一种新型的线圈结构。
如图2所示，所述一种用于GIS状态观测视频传感器无线充电的新型线圈，其特征在于，不破坏GIS内部密封的环境，定期使用充电部分对无线传感器部分进行无线充电，通过内部视频传感器，使用图像识别技术实时掌握GIS开关是否开合彻底的状态，包括如下步骤：
(1)GIS开关触头动作；
(2)视频传感器采集开关触头状态信息；
(3)视频传感器采集的图像信息通过无线通信模块将视频信号传输到信息处理终端；
(4)终端进行将视频信号解码，实时分析处理采集的图像信息，最后得到隔离开关实际分合闸状态信息。
(5)GIS开关再次动作，重复循环以上步骤。
述一种用于GIS状态观测视频传感器无线充电的新型线圈，实现对内部视频传感器无线充电包括一下步骤：
(1)电源模块电量不足，发出充电信号；
(2)信号传输到无线通信模块，将充电信息传递给无线充电模块；
(3)检测收发线圈是否对准；
(4)无线充电模块发出充电指令给发射线圈；
(5)发射线圈发出交变磁场；
(6)接收线圈通过磁场变化，感应生电；
(7)开始无线充电；
(8)充电完成。
如图4所示，改进过的圆形DC型线圈与矩形的DD线圈实验时接收端测得电流值对比图，(a)为接收线圈横向偏移实验，(b)为接收线圈旋转偏移实验，所述一种用于GIS状态观测视频传感器无线充电的DC线圈，其特征在于，改进过的圆形DC型线圈比矩形DD线圈在相同尺寸以及匝数下更加节约线材，且占用空间更小，接收发射线圈在发生小范围的相对偏移下以及旋转偏移下，可以与矩形DD型线圈达到相同的充电效果。
如图5所示，DS型线圈与矩形的DD线圈实验时接收端测得电流值对比图，(a)为接收线圈横向偏移实验，(b)为接收线圈旋转偏移实验，所述一种用于GIS状态观测视频传感器无线充电的DS线圈，其特征在于，可以看出在不同的横向偏移下DD线圈接收端所测到的电流值都略小于DS线圈的值。从图4可以看出DD线圈在旋转偏移下也处于劣势，且DS在-45°至45°和135°至225°的偏移范围内具有较强的稳定性，接收侧电流几乎没有变化，在此范围内接收端电流变化波动仅为0.3％左右，具有很好的抗旋转偏移性能。
以上实施方式仅为说明本发明的技术思想，并不用于限制本发明的保护范围，凡是按照本发明提出的技术思想，在本发明技术方案基础上所做的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (6)

1.一种用于GIS状态观测视频传感器无线充电的新型线圈，其特征在于，对DD线圈结构做出相应的调整，将其改为半圆形的DD线圈，如DC线圈或DS线圈结构，DC线圈直线部分采取紧密排列，半圆部分留有一定的匝间距；DS线圈直导线部分留有一定的匝间距，半圆部分采用紧密排列；解决了其他种类线圈与GIS光学观察窗不匹配，匹配但抗偏移以及抗旋转偏移能力差的问题，解决问题的同时又节约铜材和安装空间，同时为无线充电领域提供了一种新型的线圈结构。
2.一种用于GIS状态观测视频传感器无线充电的新型线圈，其特征在于，发射线圈安装在充电装置，接受线圈安装在无线传感器部分，红外视频传感器通过GIS密封的光学观察窗可以将开关在不同状态下的图像信息进行收集，再通过无线数据传输将视频信号传输到终端，终端进行视频信号解码实时分析处理开关的图像信息，最后得到隔离开关实际分合闸状态信息。
3.根据权利1所述一种用于GIS状态观测视频传感器无线充电的新型线圈，其特征在于，将传统的矩形DD线圈改为半圆形且发射线圈与接收线圈的尺寸保持一致，与圆形的光学观察窗匹配性高，且满足发射接收线圈发生小范围的相对偏移，相对旋转偏移的充电要求。
4.根据权利2所述一种用于GIS状态观测视频传感器无线充电的新型线圈，其特征在于，无线传感器部分根据圆形观察窗设计，为圆形；根据分合闸过程中对应的开关动触头位置不一样，使用红外视频传感器采集其开关动触头的视频信号进行无线数据传输，通过图像识别技术观察其动触头位置来判别它的分合闸状态。
5.根据权利2所述一种用于GIS状态观测视频传感器无线充电的新型线圈，其特征在于，不破坏GIS内部密封的环境，定期使用充电部分对无线传感器部分进行无线充电，通过内部视频传感器，使用图像识别技术实时掌握GIS开关是否开合彻底的状态，包括如下步骤：
(1)GIS开关触头动作；
(2)视频传感器采集开关触头状态信息；
(3)视频传感器采集的图像信息通过无线通信模块将视频信号传输到信息处理终端；
(4)终端进行将视频信号解码，实时分析处理采集的图像信息，最后得到隔离开关实际分合闸状态信息；
(5)GIS开关再次动作，重复循环以上步骤。
6.根据权利1要求所述一种用于GIS状态观测视频传感器无线充电的新型线圈，其特征在于，解决了GIS封闭情况下无法完全观察到开关动触头状态的问题，以及现有的矩形DD型线圈与圆形光学观察窗不匹配问题，实现对内部视频传感器无线充电包括以下步骤：
(1)电源模块电量不足，发出充电信号；
(2)信号传输到无线通信模块，将充电信息传递给无线充电模块；
(3)检测收发线圈是否对准；
(4)无线充电模块发出充电指令给发射线圈；
(5)发射线圈发出交变磁场；
(6)接收线圈通过磁场变化，感应生电；
(7)开始无线充电；
(8)充电完成。
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