journal article·2019-04-27Open access

Charging Schedule for Load Peak Minimization on Large-Scale Electric Bus Depots

Amra Jahic, Mina Eskander, Detlef Schulz

Applied Sciences· Volume 9· Issue 9

Abstract

The city of Hamburg has decided to electrify its bus fleets. The two public transportation companies in this city expect to operate up to 1500 buses by 2030. In order to accomplish this ambitious goal, both companies need to build an appropriate charging infrastructure. They have both decided to implement the centralized depot charging concept. Buses can therefore charge only at the depot and do not have the possibility for opportunity charging at intermediate stations. The load profile of such a bus depot is highly dependent on the charging schedule of buses. Without an intelligent scheduling system, the buses charge on demand as soon as they arrive to the depot. This can lead to an unevenly distributed load profile with high load peaks, which is problematic for the local grid as well as for the equipment dimensioning at the depot. Charging scheduling on large-scale bus depots is a relatively new and poorly researched topic. This paper addresses the issue and proposes two algorithms for charging scheduling on large-scale bus depots with the goal to minimize the peak load. The schedules created with the proposed algorithms were both tested and validated in the Bus Depot Simulator, a cosimulation platform used for bus depot simulations.
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Research context

OpenAlex topics: Electric Vehicles and Infrastructure · Advanced Battery Technologies Research · Electric and Hybrid Vehicle Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Electrical Power Systems, Faculty of Electrical Engineering, Helmut Schmidt University, University of the Federal Armed Forces, Holstenhofweg 85, 22043 Hamburg, Germany

Funding

German Federal Ministry of Transport and Digital Infrastructure

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