Wireless power transfer impact on data channel

Abstract

Abstract-This paper presents measurement results and analysis of the interference produced by the high-power electromagnetic field in a wireless energy transfer system. Through this analysis it is expected to be possible to evaluate the influence of the strong electromagnetic field on the data transmission channel. The wireless power transfer aimed at electric vehicles battery charging receives a great deal of attention in the recent years. However, the performance of those systems depends on the exchange of information between the transmitter and the receiver, e.g. vehicle identification, frequency, required power, payment information. Thus, it is essential to ensure that the electromagnetic interference, generated by the wireless power transfer system will not influence or disrupt the communication between the transmitter and the receiver. Keywords-Wirelesspower and data transmission; electromagnetic field; electromagnetic interference; impact on data channel

Omnidirectional WPT and Data Communication for Electric Air Vehicles: Feasibility Study

“…On the other hand, data signal is realized at much higher frequencies, particularly in the GHz order [14,15]. The experimental results of measurement and the analysis of the electromagnetic fields generated by WPT system as well as their possible interaction on data transmission channel are reported in [13,14]. They confirmed that there is no substantial impact from WPT system operating at 20 kHz frequency on data transfer channel operating at 2.4 GHz frequency.…”

“…At high frequency, electromagnetic interferences (EMI) become an important issue where the high-intensity EMF can have a harmful impact not only on the surrounding equipment and the exchange of the data between the transceivers but also on the human safety. In fact, to figure out the range of interference generated by WPT equipment, serval studies are proposed [12][13][14][15]. Firstly, a study related to the electromagnetic emissions from WPT effects are discussed in [12,13].…”

“…In fact, to figure out the range of interference generated by WPT equipment, serval studies are proposed [12][13][14][15]. Firstly, a study related to the electromagnetic emissions from WPT effects are discussed in [12,13]. However, it is crucial to assure that the EMI generated by the wireless power transfer system will not influence or disrupt the communication between the transmitter and the receiver [14,15].…”

Simulation and Experiment on Electric Field Emissions Generated by Wireless Energy Transfer

“…The model with the given setup and specifications was used for an experimental verification of the results of a previous research [21,22]. The equipment for the measurement of the electric field was composed by a WET power converter and a measuring instrument Narda SRM-3000 (Selective Radiation Meter).…”

Study of the Electromagnetic Interference Generated by Wireless Power Transfer Systems

“…the operation frequency, the required power, the vehicle identification and the payment information. However, a high intensity EMF generated by WPT system may introduce highly undesired influence on the communication channel which could be a severe problem [12]- [13].…”