The regulatory framework for wireless power transfer systems

Kalialakis, Christos; Georgiadis, Apostolos

doi:10.1017/wpt.2014.13

Cited by 25 publications

(14 citation statements)

References 42 publications

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“…The method described above gives us all the necessary electrical parameters needed for the magnetic design (real geometry of the coils). The goal is therefore to design the geometry of the couplers so they will form the mutual inductance according to (12) or (13) and have the series resistance as low as possible.…”

Section: Of 17mentioning

confidence: 99%

“…This has a direct impact on the lifetime performance and, therefore, the most suitable solution for targeted applications must be found. The commercial uses of WPT systems have also been widely discussed due to biocompatibility issues [11][12][13][14]. Several standards are now available [15,16] as guidelines for safety when the interaction safety when the interaction between the EM field and living organisms is considered.…”

Section: Introductionmentioning

confidence: 99%

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Generalized Design Approach on Industrial Wireless Chargers

et al. 2020

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The paper briefly discusses the most important standards and regulations established for high-power wireless power transfer systems and introduces the main issues concerned with the conceptual design process. It analyses the electromagnetic design of the inductive magnetic coupler and proposes key formulas to optimize its electrical parameters for a particular load. The method applies to both the resistive load and the battery charging. It also suggests basic topologies for conceptual design of power electronics and discusses its proper connection to the grid. The proposed design strategy is verified by experimental laboratory measurement including analyses of the leakage magnetic field.

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Section: Of 17mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Generalized Design Approach on Industrial Wireless Chargers

et al. 2020

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“…There are several recent research efforts in this domain focused on the scalability of these networks in terms of total transmitted power [10], minimization of the charging delay [11], charging control of the energy transmitters to maximize the lifetime of the network and minimize energy outage [12], [13], c) RF-Based Charging Safety: The radiation safety during RF-based charging is generally overlooked in the current state of the art. It is generally accepted that being exposed to radiation is considered as a threat for human health [14] and the exposure regulations define the limits for the radiated power from electronic devices [15]. As emphasized in [16], satisfying radiation constraints on every point on a 2D area is an NP-hard problem.…”

Section: Related Workmentioning

confidence: 99%

Safe Distributed Control of Wireless Power Transfer Networks

Yıldırım

Carli

Schenato

2019

IEEE Internet Things J.

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Wireless power transfer networks (WPTNs) are composed of dedicated energy transmitters that charge energy receivers via radio frequency waves. A safe-charging WPTN should keep electromagnetic radiation below predetermined limits meanwhile maximizing the transmitted power. In this article we consider this requirement as an optimization problem: the maximization of harvested power by ERs subject to the electromagnetic safety constraints. In order to provide an approximated solution to this problem, we introduce a dual ascent-like distributed charging algorithm that enables energy transmitters to work without global information and satisfy safety constraints asymptotically. We provide an in-depth theoretical analysis of our algorithm which is supported by numerical simulations.

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“…According to [11], the ICNIRP guidelines [9] are globally recognized as the de facto standard for limiting exposure to electric and magnetic fields, although there are several other international and national guidelines regarding the radiation safety, including those by the International Committee on Electromagnetic Safety (ICES) [10]. It is also mentioned that national legislations usually refer to the ICNIRP guidelines and impose even more stringent limitations based on political decisions.…”

Section: A) Regulations and Requirementsmentioning

confidence: 99%

Radar-based living object protection for inductive charging of electric vehicles using two-dimensional signal processing

2017

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As battery capacities become suitable for the mass market, there is an increasing demand on technologies to charge electric vehicles. Wireless charging is regarded as the most promising technique for automatic and convenient charging. Especially in publicly accessible parking spaces, foreign objects are able to enter the large air gap between the charging coils easily. Since the evoked magnetic field does not meet regulations, wireless charging systems are demanded to take further precautions related to the protection of endangered objects. Thus, additional sensors are required to protect primarily living objects by preventing them from being exposed to the magnetic field. In this paper, we propose a new approach for monitoring the air gap under the vehicle underbody using an automotive radar sensor on the vehicle side. The concept feasibility is evaluated with the help of a prototypical implementation. Further, two-dimensional signal processing techniques are applied to meet the requirements of inductive charging systems. Consequently, this paper provides measurement data for relevant use cases frequently discussed in the community of inductive charging.

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The regulatory framework for wireless power transfer systems

Cited by 25 publications

References 42 publications

Generalized Design Approach on Industrial Wireless Chargers

Generalized Design Approach on Industrial Wireless Chargers

Safe Distributed Control of Wireless Power Transfer Networks

Radar-based living object protection for inductive charging of electric vehicles using two-dimensional signal processing

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