“Charge while driving” for electric vehicles: road traffic modeling and energy assessment

Abstract

The aim of this research study is to present a method for analyzing the performance of the wireless inductive charge-while-driving (CWD) electric vehicles, from both traffic and energy points of view. To accurately quantify the electric power required from an energy supplier for the proper management of the charging system, a traffic simulation model is implemented. This model is based on a mesoscopic approach, and it is applied to a freight distribution scenario. Lane changing and positioning are managed according to a cooperative system among vehicles and supported by advanced driver assistance systems (ADAS). From the energy point of view, the analyses indicate that the traffic may have the following effects on the energy of the system: in a low traffic level scenario, the maximum power that should be supplied for the entire road is simulated at approximately 9 MW; and in a high level traffic scenario with lower average speeds, the maximum power required by the vehicles in the charging lane increases by more than 50 %.

A Review on Electric Vehicle Charging Infrastructure Development in the UK

“…Currently, wireless charging system can be categorized as inductive power transfer, capacitive wireless power transfer, magnetic gear wireless power transfer and resonant inductive power transfer [94] - [98]. Meanwhile, wireless charging in motion has been sought out [99], [100]. However, large air gap and coil misalignment result in low energy efficiency and system reliability.…”

A New ICPT System with Harmonic of Inverse Injection for Achieving High-Quality Electric Power Transmission

“…The system's transfer admittance mode of each position established by ( 9), (11) and ( 12) is based on the inverter output voltage-U in , and takes each current as variable. When the system's frequency changes, each coil current I is the expression under this frequency.…”

“…Based on the electromagnetic induction principle, WPT system, viz. inductive coupled power transfer (ICPT) with largecapacity and high-efficiency power transmission, has received further research and wide applications in medical equipment [3,4], mobile phone [5,6], electric vehicle charging [7][8][9][10][11], etc.…”

Dynamic charging systems for electric vehicles: simulation for the daily energy estimation on motorways

“…The input traffic flow for the motorway is simulated in this paper with a different approach with respect to previous studies [7,13,14,19] to take into account a hourly representation of the time profile along the day such as that provided in [21], where the hour variation is described as a percentage of the mean value of traffic (Fig. 1).…”

“…The EV supply equipment (EVSE) layout is assumed in this paper as the one defined in [13,14] and the analysis is applied to a roadway scenario with three lanes, where the right-hand lane is reserved for the charging activities. An extended analysis of a CWD scenario along highways has been performed in [6].…”