This study deals with a preliminary analysis of the electromagnetic interference (EMI) produced by a dynamic wireless power transfer (DWPT) system on an underground traffic signal cable. The considered DWPT is composed by an electrified lane with short-track pads architecture. The induced effects in a multiconductor underground cable are calculated by the theory of field-excited multiconductor transmission line (MTL) where the distributed sources are derived from the electromagnetic field generated by the DWPT coils operating at 85 kHz and transferring a power of 10 kW. The obtained preliminary results, validated by comparison with other methods, show that the induced current on a traffic signal cable is small for higher odd harmonics, while it is negligible for even harmonics. Thus, only the first harmonic could produce EMI.
Dynamic Wireless Power Transfer in Urban Area: EMI on Traffic Signal Cables
Cruciani S.;Campi T.;Feliziani M.
2021-01-01
Abstract
This study deals with a preliminary analysis of the electromagnetic interference (EMI) produced by a dynamic wireless power transfer (DWPT) system on an underground traffic signal cable. The considered DWPT is composed by an electrified lane with short-track pads architecture. The induced effects in a multiconductor underground cable are calculated by the theory of field-excited multiconductor transmission line (MTL) where the distributed sources are derived from the electromagnetic field generated by the DWPT coils operating at 85 kHz and transferring a power of 10 kW. The obtained preliminary results, validated by comparison with other methods, show that the induced current on a traffic signal cable is small for higher odd harmonics, while it is negligible for even harmonics. Thus, only the first harmonic could produce EMI.Pubblicazioni consigliate
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