CN103874601A - 架空电力传送系统 - Google Patents
架空电力传送系统 Download PDFInfo
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Abstract
本发明涉及一种用于给多个车辆充电的充电站以及给多个车辆内的储能系统充电的方法。用于给多个车辆(每一车辆具有位于所述车辆的顶部的接收器线圈)充电的充电站包括:第一和第二支撑结构;在所述第一与第二支撑结构之间伸展的架空轨道;在所述架空轨道上的可移动滑架,所述滑架包括位于所述滑架下面的位置且用于当所述多个车辆停放在所述架空轨道时将电力传送至所述多个车辆的接收器线圈的发送器线圈,和连接至所述发送器线圈的感应电力传送模块;和机动传输机构,其用于使所述滑架沿着所述轨道移动且将所述滑架定位在所述多个车辆中的任何可选择的一个的上方。
Description
技术领域
本发明一般涉及一种用于给电动车辆中的电力存储系统充电的系统和方法。
相关申请的交叉引用
本申请要求于2011年8月16日提交的美国临时申请第61/524,081号的权益或优先权,该申请的全部公开内容据此以全文引用的方式并入本文。
发明背景
随着电动机和电池充电技术的发展,电动车辆的市场继续增长。车队的所有者开始将电动车辆看作理想的购买。这意味着将存在这些车队的所有者对安装使他们每天晚上能够给大量车辆的电池再充电的设施的需要。该设施可意味着大量的资金投入。
一种由电动车辆行业的参与者提倡的日益受欢迎的方法涉及使用无线能量传送或感应电力传送来给车辆的电池充电。在标题为“WirelessEnergy Transfer Between A Source and A Vehicle”且并以引用的方式并入本文的美国专利公开第2010/0277121号中描述了这种方法的实例。一般而言,充电站具有通常安装在充电站的底板的发送线圈。并且,车辆包括安装在其下侧的接收线圈。当需要给电池再充电时,驾驶员将车辆驶入充电站,使得车辆的接收线圈与发送线圈对准。当这两种线圈以此方式对准时,充电站将高频率(例如,RF)能量信号应用至发送器线圈,并且通过这两种线圈的谐振耦合将能量传送至接收线圈。
发明内容
一般而言,在一方面,本发明展示一种用于给多个车辆充电的充电站,每一车辆具有位于车辆的顶部的接收器感应线圈。系统包括:第一和第二支撑结构;在第一和第二支撑结构之间伸展的架空轨道;在架空轨道上的可移动滑架,该滑架包括位于滑架下面的位置且用于当多个车辆停放在架空轨道下方时将电力发送至多个车辆的接收器感应线圈的发送器感应线圈、连接至发送器感应线圈的感应电力传送模块和控制发送器感应线圈相对于滑架的位置的对准台;和机动传输机构,其用于使滑架沿着轨道移动且将滑架定位在多个车辆中的任何可选择的一个的上方。
结合以下附图和描述来阐述本发明的一个或多个实施方案的详细内容。本发明的其它特征、目标和优势将从描述和附图以及权利要求书中显而易见。
附图说明
图1是用于给一个车队的电动车辆中的蓄电池充电的架空感应电力传送系统的示意图示。
图2是在图2中所示的滑架内的电路的框图。
具体实施方案
图1示出对车队所有者尤其有用的自动化车辆充电系统100。该系统使人们能够通过架空充电单元依次给一个车队的车辆充电,该架空充电单元连续将能量无线地传送至每一个车辆。该系统利用当前充电技术的能力来在几分钟而不是之前所需要的数个小时内充满车辆的电池。较快的充电使人们能够使用单个充电单元依次给一个车队的车辆中的每一车辆再充电,并且例如,当车辆停放一晚上时,仍在合理的时间内完成这个工作。该设计大大减少了建立可以有效地给多个车辆充电的充电设备所需的资金投入量。该设计使车队所有者能够安装从一辆车自动移动到下一辆车的一个充电站,而无需为每一车辆安装分开的单独充电站。
车辆充电系统100包括架空结构,在该结构上,充电滑架102悬挂在停放在该结构下面的一组车辆104的上方。在滑架102的下侧有发送器线圈120,并且在每一车辆的顶部的稍低于发送器线圈120高度处有接收器线圈240。在所描述的实施方案中,本设计中的架空结构与吊缆的结构类似。该结构包括两个支撑塔106,两根吊缆108在两个支撑塔106之间伸展(在图1的侧视图中,仅示出一根缆线108,在图中另一根与其平行且在其后方)。每一根吊缆108支撑通过多个垂直悬挂元件112(例如,其它长度的缆线或悬杆)而从吊缆108悬吊下来对应的轨道110(例如,缆线或铁轨)。支撑缆线114为塔106提供进一步支撑,该支撑抵消悬挂在其间的结构施加在塔106上的侧向力。在该布置的情况下,轨道110被布置成与地面平行且在距离地面足够高以允许车辆104停放在悬挂滑架102下方的恒定高度上。
滑架102从轨道110悬吊下来,使得其可沿着两座塔之间的轨道来回移动。在所描述的实施方案中,机构(滑架102通过其从轨道悬吊下来)与吊椅中采用的机构类似。例如,一个车轮停驻在轨道的顶部,以及第二个车轮(在第一个车轮下方)停驻在轨道的下面,并且防止滑架轻易脱轨。
滑架102支持使能源能够传送通过发送器线圈120所需的电路。这样的电路被本领域技术人员所熟知,且可呈现多种不同的形式。在先前提到的美国专利公开第2010/0277121号中描述了所述电路的一些实例。在所描述的实施方案中,如图2所示出,其包括降压变压器200、整流器电路202和发送器电路204。通过高压AC线路(例如,13.5kV)将电力递送至滑架102。降压变压器200使该电压降低至较低水平,即,与滑架102中的另一电路更兼容的一个电压。整流器电路202将AC转换成DC以用于向滑架102中的电路的剩余部分供电。并且,发送器电路204产生高频电力信号以驱动发送器线圈120并且对车辆执行感应电力传送。
该电路包括:由控制信号212控制的可变振荡器210;连接至振荡器210的电力放大器214;以及滤波器和匹配电路216,其输出连接至发送器线圈120。在所描述的实施方案中在RF范围(例如,13.5MHz)内操作的振荡器210驱动电力放大器214。放大器214的输出通过滤波器和匹配电路216(其消除任何来自电力放大器214的输出信号的噪音或不想要的谐波)并且将发送器电路的阻抗匹配至线圈,从而帮助优化放大的RF信号至轨道中的接收器电路的耦合。控制器220还可以改变振荡器210的频率以优化电力传送。
滑架中的电路还包括:基于处理器的控制器220,其用于控制滑架102中各种其它电路和系统的操作;感测电路222,其用于帮助物理地对准滑架102中的发送器线圈120和车辆中的接收线圈240;无线收发器224,其用于与位于车辆中的对应电路交换信息;传输机构或驱动电机226,其用于使滑架沿着轨道移动;和线圈定位机构228,其由伺服电机和/或制动器的布置组成且用于定位发送器线圈120以更精确对准车辆中的接收器线圈240。
控制器220被编程来使用驱动电机226以使滑架沿着轨道从一个充电位置移动到另一个充电位置。程序大致知道每个车辆线圈位于什么地方。在实现与第一辆车中的接收器线圈的初始对准之后,在可能包括各种光学和/或机械传感器的感测电路222的帮助下,控制器220使用线圈定位机构228来使发送器线圈120与接收器线圈240更精确地对准。感测电路用来光学地或电气地检测接收器线圈的精确位置,且促使线圈定位机构228物理地并电气地对准两个线圈以用于最佳电力传送。电机和/或制动器机构具有相对于滑架102(两个是平行的且一个是垂直的)移动三维中的发送线圈以实现两个线圈的最佳对准的能力。控制器220还可测量发送器电路的传送电特性,且动态地调整发送器电路以实现最佳耦合。这可涉及通过在两个无线收发器之间建立的无线通信链路而从目标车辆接收反馈。
在车辆中,接收器线圈240连接到接收器电路250。该接收器电路通常包括匹配电路252、整流器和切换电路254、控制器256和电池管理模块258。来自发送器电路的信号共鸣地耦合到连接至接收器电路250的线圈240。匹配电路252将接收器的阻抗匹配至接收器线圈240。并且,整流器和切换电路254整流接收到的AC信号以输出递送到车辆电池的DC电压来执行再充电操作。电池管理模块258监测车辆中电池的充电,并且将该信息提供至控制器256,控制器256使用无线收发器260来将某一监测信息传达到滑架102中的无线收发器224。
在轨道110下方,有一排经识别的停车位或槽位,将车辆开进所述停车位或槽位以进行整晚充电。所述槽位在停泊表面被物理地识别,并且停泊表面中的压痕(在其中定位车轮)提供车辆在轨道110下方的大致对准。当滑架102在轨道下方来回移动时,会使发送器线圈120大致对准车辆的顶部上的接收器线圈240。
当启动充电顺序时,架空滑架102中的控制器220促使驱动电机226使滑架102沿着轨道110移动到一侧上的初始位置且在第一辆车所在的位置上方。在该位置处,控制器220使用感测电路222找到接收器线圈240,因为将需要使用接收器线圈240对准发送器线圈120。然后,控制器220使用滑架内的定位机构228来使发送线圈120在水平和垂直方向上关于下方接收器线圈240更精确地对准。一旦两个线圈正确地对准,控制器220开始电力传送操作来给车辆的电池充电。
车辆中的控制器256感测机载电池的充电状态并检测它们何时充满。通过使用在两个无线收发器224与260之间建立的通信链路,控制器256将充电状态信息传达到滑架102中的控制器220。当完全充满时,滑架102中的控制器220为该车辆终止充电操作。然而,这促使滑架102移动到另一车辆,并且执行相同顺序的步骤来给下一车辆的电池充电。为每一车辆重复该顺序直到停放在充电结构内的每一车辆已经被完全充满。
用于使滑架沿着架空轨道移动的驱动机构被描述为位于架空滑架中。然而,其可替代地位于支撑塔上,并且操作使滑架移动到期望位置的缆线。
其它实施方案在上述权利要求书的范围内。
Claims (10)
1.一种用于给多个车辆充电的充电站,每一车辆具有位于所述车辆的顶部的接收器线圈,所述系统包括:
第一和第二支撑结构;
架空轨道,其在所述第一与第二支撑结构之间伸展;
在所述架空轨道上的可移动滑架,所述滑架包括位于所述滑架下面的位置且用于当所述多个车辆停放在所述架空轨道下方时将电力传送至所述多个车辆的所述接收器线圈的发送器线圈,和连接至所述发送器线圈的感应电力传送模块;和
机动传输机构,其用于使所述滑架沿着所述轨道移动且将所述滑架定位在所述多个车辆中的任何可选择的一个的上方。
2.根据权利要求1所述的充电站,其中所述可移动滑架进一步包括对准台,所述对准台用于相对于所述滑架可移动地定位所述发送器线圈以实现和所述接收器线圈进一步对准。
3.根据权利要求2所述的充电站,其中所述对准台用于相对于所述滑架可移动地定位三维中的所述发送器线圈。
4.根据权利要求1所述的充电站,其中所述滑架从所述轨道悬吊下来。
5.根据权利要求1所述的充电站,其中所述轨道包括缆线。
6.根据权利要求5所述的充电站,其中所述轨道包括彼此平行的两根缆线。
7.根据权利要求1所述的充电站,其中所述轨道包括两个轨。
8.根据权利要求1所述的充电站,其中机动传输机构在所述滑架内。
9.根据权利要求1所述的充电站,其中所述感应电力传送模块包括控制器,所述控制器用于控制所述机动传输机构和所述发送器线圈与所述接收器线圈之间的电力传送。
10.一种用于给多个车辆内的储能系统充电的方法,每一车辆具有位于所述车辆的顶部的接收器线圈,所述方法包括:
提供感应电力传送系统以用于将电力电感地传送至接收器线圈;
将所述感应电力传送系统定位在所述多个车辆中的选定一个的上方,并使其与所选定的车辆中的所述接收器线圈对准;
在将所述感应电力传送系统定位在所述多个车辆中的选定一个的上方之后,通过位于所选定的车辆的顶部上的接收器线圈将电力从所述感应电力传送系统电感地传送至所选定的车辆;以及
为所述多个车辆的其余车辆中的每一个依次重复所述定位和感应电力传送步骤。
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WO2013025905A2 (en) | 2013-02-21 |
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US20130088194A1 (en) | 2013-04-11 |
WO2013025905A3 (en) | 2013-05-10 |
IN2014CN01201A (zh) | 2015-04-10 |
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