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Load analysis of ground-powering systems for electric vehicles

Lookup NU author(s): Dr Saleh AliORCiD, Professor Volker Pickert, Dr Mohammed AlharbiORCiD, Dr Haris Patsios



This is the authors' accepted manuscript of a conference proceedings (inc. abstract) that has been published in its final definitive form by EVS (Electric Vehicles Symposium), 2019.

For re-use rights please refer to the publisher's terms and conditions.


Dynamic conductive road charging involves the transfer of power into moving Electric Vehicles (EVs) using sliding contacts. The power transfer mechanism can be either installed from the top of the car using overhead conductors, conducting rails installed along the road-side or ground-level systems embedded in the road surface. The ground-level power system is the preferred option as it minimizes aerodynamic resistance compared to the other two as well as being designed for operation with vehicles of various sizes. In addition, existing technologies used in trams can be modified to provide ground-level EV charging systems. This paper investigates a ground-level system for EVs driving at high-speed on a motorway. It is based on the Tracked Electric Vehicle (TEV) project where EVs drive autonomously in a platoon with short inter-vehicle distance to reduce the overall air drag coefficient of the platoon. The paper investigates the optimum length and distance for the ground-level system. A Simulink model is developed for platoons of 10 EVs powered from a converter. It is shown that, for a platoon of 10 EVs driving with an inter-platoon distance of 50 m, a conducting-bar section100 m in length is the most efficient in terms of load variation and voltage stability.

Publication metadata

Author(s): Ali S, Pickert V, Alharbi M, Patsios H

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: International Electric Vehicle Symposium (EVS32)

Year of Conference: 2019

Pages: 1-10

Online publication date: 19/05/2019

Acceptance date: 02/04/2018

Date deposited: 27/10/2023

Publisher: EVS (Electric Vehicles Symposium)