Cost-effective electric vehicle charging for public spaces by novel coreless wireless charger technology

“公共充电位的短缺正在减缓电动汽车的应用。所有电动汽车车主都必须为他们的电动汽车充电，而目前的有线充电方式极大地限制了电动汽车的潜在用户，只有那些住在私人家中并有机会安装家用充电设备的人。许多住在多层公寓楼里的人不鼓励使用电动汽车，因为他们家附近没有可用的充电场所。无线充电器可以在汽车一停下来就自动操作，这将极大地简化电动汽车的使用。有一些无线充电技术试图解决这些问题，但大多数都是基于一百多年前开发的感应功率传输原理。现有产品有几个缺点，最明显的两个是充电器价格和极其精确的停车(线圈对齐)的必要性。目前的无线充电系统耗资数千英镑，因此使无线充电成为少数豪华车主的良好功能，但严重阻碍了普通人使用这些系统。这项创新是由Lesla开发的新的无芯WPT技术，与目前的无线充电产品相比，价格最高可低10倍。这是通过使用新的线圈频率和相位同步方法实现的，该方法不需要为每个线圈使用非常昂贵的高频整流器。因此，这项技术还确保线圈的安装要简单得多，不涉及更换整个或部分路面。无线充电线圈可以镶嵌在小的1“”沟渠中，立即被覆盖，从而最大限度地减少交通干扰。通过使用Lesla技术，整个停车场可以以单个充电器的价格实现电气化，这带来了以下好处：降低了每辆车的充电器成本，从而使该技术在经济上更加可行；更易于操作：车辆不必以极高的精度停放，也增加了空间的利用：停车位不必只为电动汽车预留，因为停车场中的所有位置都可以用作充电点。该项目旨在评估广泛使用的无线充电基础设施的好处，并以该项目中选择的一个城市为例，为公共无线充电运营商开发商业模式。

"Shortage of public charging places is slowing down EV adoption. All owners of electric vehicles have to charge their EVs and current wired charging methods greatly limits the potential users of electric vehicles only to those who are living in private homes and have opportunity to install home charging equipment. Many people living in multi-story apartment buildings are discouraged to use EVs for the lack of available charging places close to their homes.Wireless charger providing automatic operation as soon as the car is parked, would greatly simplify EV use. There are a few wireless charging technologies attempting to address these issues, however majority of them are based on inductive power transfer principles developed more than a hundred years ago. Existing products have several shortcomings, two most obvious being _charger price and the necessity for extremely precise parking (coil alignment)_ .Current wireless charging systems run into thousands of pounds, thus making wireless charging a nice feature for the few luxury car owners, but seriously impeding the use of these systems for ordinary people. The innovation is the new coreless WPT technology developed by Lesla is up to 10 times cheaper compared to current wireless charging products. This has been achieved by using novel coil frequency and phase synchronization approach, which does not require use of very expensive high frequency rectifiers for each coil. Hence, this technology also ensures that the installation of the coils is much simpler, not involving replacing whole or part of road surface. The wireless charging coils can be inlaid in small 1"" trenches, which are covered straight away, thus minimizing traffic disruptions.By using Lesla technology whole parking areas can be electrified for the price of a single charger, which brings following benefits: the reduced charger costs per vehicle, thus making the technology more economically feasible; increased ease of operation: the vehicles do not have to be parked with extreme accuracy, also increased use of the space: the parking spots do not have to be reserved for electric cars only, as all spots in a car park can serve as charging spots.The project is aimed to evaluate the benefits of widespread wireless charging infrastructure and to develop business model for public wireless charging operators based on example of a city selected in this project."