Safe Power Delivery Using a Reconfigurable Mesh of Inductive Transceivers

使用可重新配置的感应式收发器网实现安全电力传输

• 批准号: EP/X020606/1
• 负责人: Paul Mitcheson
• 金额: $ 91.45万
• 依托单位: Imperial College London
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FX020606%2F1
• 关键词: Safe; Power; Delivery; Using; Reconfigurable

Existing wireless power transfer (WPT) systems remove the inconvenience of charging portable devices, such as mobile phones, through cables, and can also help solve the problem of getting power into "hard to reach places", such as powering or recharging medical implants. However, the vast majority of existing WPT solutions are limited by being unidirectional, point-to-point systems, i.e. there is one dedicated power source, and one dedicated receiver that collects the transmitted energy. In this work, we will develop a new generation of wireless power transfer technology where we will create networks of active wireless power transceivers, allowing power to be routed, safety, around the network, over long distances and with high efficiency. The technologies that will be created in this work will enable wireless power systems to be deployed in vastly more application scenarios due to the significant increase in capability that will be created. For example:1. The move from systems with active transmitters and passive receivers to an active-active, transceiver-transceiver approach will concurrently enable power to be moved in either direction across the magnetic link ("bidirectional wireless power transfer", as well as enabling operation of the system with lower coupling factors (due to the tuning flexibility that the active-active approach creates). Operation with lower coupling factors inherently means greater transmission distance between the power source and the receiver.2. The creation of a network of wireless power transceivers (rather than point-to-point links), where any number of transmitters can freely join and leave the network, opens up many other new applications that would otherwise not be practical, or in some cases be possible. It will allow devices to participate, in an ad-hoc way in receiving and transmitting power into the network (as portable devices are moved around), and helping relay power from a source to a node over a number of hops, increasing the range of wireless power delivery. It will enable the efficient charging of many devices concurrently from a single transmission source, in applications such as powering a number of devices on a desk, charging many power-tools in a toolbox or case, military equipment in a soldier's backpack etc.A secondary output from this work, although one that is absolutely critical to successful deployments of wireless power in almost all application contexts, is safe operation in the prescience of people, and conducting objects (which have the potential to heat up in a similar way to induction-hob cooking). Whilst the high frequency wireless power solutions that we employ are naturally less prone to heating foreign objects, there are always scenarios where a traditional wireless power system will need to either shut off, or operate at reduced power due from a safety perspective. The use of a network of transceivers adds the possibility to route power away from and around foreign objects without having to degrade the power delivery to maintain safety, as is often required in simple point-to-point systems.

现有的无线电力传输（WPT）系统消除了通过电缆对便携式设备（诸如移动的电话）充电的不便，并且还可以帮助解决将电力输送到“难以到达的地方”（诸如对医疗植入物供电或再充电）的问题。然而，绝大多数现有的WPT解决方案受到单向、点对点系统的限制，即存在一个专用电源和一个收集传输能量的专用接收器。在这项工作中，我们将开发新一代无线电力传输技术，我们将创建有源无线电力收发器网络，允许电力在网络周围，长距离和高效率地路由，安全。在这项工作中创建的技术将使无线电力系统能够部署在更多的应用场景中，因为将创建的功能将显着增加。比如：1.从具有有源发射器和无源接收器的系统到有源-有源、收发器-收发器方法的移动将同时使得功率能够跨磁链路在任一方向上移动（“双向无线功率传输”），以及使得系统能够以较低的耦合因子操作（由于有源-有源方法产生的调谐灵活性）。以较低的耦合系数操作固有地意味着电源和接收器之间更大的传输距离。无线电力收发器网络（而不是点对点链路）的创建，其中任何数量的发射器都可以自由加入和离开网络，开辟了许多其他新的应用，否则这些应用将不实用，或者在某些情况下是可能的。它将允许设备以自组织方式参与接收和传输电力到网络中（当便携式设备四处移动时），并帮助将电力从源中继到节点，增加无线电力传输的范围。它将使得能够从单个传输源同时对许多设备进行有效充电，在诸如为桌子上的许多设备供电、为工具箱或箱子中的许多电动工具充电、为士兵背包中的军事装备充电等应用中。是安全的操作在预知的人，并进行物体（有可能升温，以类似的方式感应炉烹饪）。虽然我们采用的高频无线供电解决方案自然不太容易加热异物，但从安全角度来看，传统的无线供电系统总是需要关闭或以降低的功率运行。收发器网络的使用增加了将电力从异物和异物周围路由出去的可能性，而不必降低电力输送以保持安全性，这在简单的点对点系统中通常是需要的。