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Research article - Peer-reviewed, 2020

Performance comparison of charging systems for autonomous electric field tractors using dynamic simulation

Lagnelov, Oscar; Larsson, Gunnar; Nilsson, Daniel; Larsolle, Anders; Hansson, Per-Anders

Abstract

A model simulating an autonomous battery electric vehicle system for agricultural field use was created, assuming a 200-ha conventional cereal farm in Swedish conditions. The different subsystems were verified against sources in the literature, field experiments and general common practice. The model was used to compare two different charging systems (conductive charging and battery exchange) for battery electric tractors to each other. A comparative simulation was made with conventional diesel systems (fully autonomous or manned for 10 h d(-1)). The simulation results indicated that battery exchange was generally a faster system than conductive charging. The results also showed that both electric systems were able to achieve similar active time during spring field operations as a corresponding system of a simulated manned diesel tractor for battery sizes from 50 kWh and charge powers from 50 kW. (C) 2020 The Authors. Published by Elsevier Ltd on behalf of IAgrE.

Keywords

Tractor; BEV; Modelling; Simulation; Conductive Charging; Battery Exchange

Published in

Biosystems Engineering
2020, volume: 194, pages: 121-137
Publisher: ACADEMIC PRESS INC ELSEVIER SCIENCE

Authors' information

Swedish University of Agricultural Sciences, Department of Energy and Technology
Swedish University of Agricultural Sciences, Department of Energy and Technology
Swedish University of Agricultural Sciences, Department of Energy and Technology
Swedish University of Agricultural Sciences, Department of Energy and Technology
Swedish University of Agricultural Sciences, Department of Energy and Technology

UKÄ Subject classification

Agricultural Science

Publication Identifiers

DOI: https://doi.org/10.1016/j.biosystemseng.2020.03.017

URI (permanent link to this page)

https://res.slu.se/id/publ/105988