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Prolongation of Battery Lifetime for Electric Buses through Flywheel Integration

Glücker, Philipp ; Kivekäs, Klaus ; Vepsäläinen, Jari ; Mouratidis, Panagiotis ; Schneider, Maximilian ; Rinderknecht, Stephan ; Tammi, Kari (2023)
Prolongation of Battery Lifetime for Electric Buses through Flywheel Integration.
In: Energies, 2021, 14 (4)
doi: 10.26083/tuprints-00017803
Article, Secondary publication, Publisher's Version

Copyright Information: CC BY 4.0 International - Creative Commons, Attribution.

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Item Type: Article
Type of entry: Secondary publication
Title: Prolongation of Battery Lifetime for Electric Buses through Flywheel Integration
Language: English
Date: 20 November 2023
Place of Publication: Darmstadt
Year of primary publication: 2021
Place of primary publication: Basel
Publisher: MDPI
Journal or Publication Title: Energies
Volume of the journal: 14
Issue Number: 4
Collation: 19 Seiten
DOI: 10.26083/tuprints-00017803
Corresponding Links:
Origin: Secondary publication DeepGreen

Electrification of transportation is an effective way to tackle climate change. Public transportation, such as electric buses, operate on predetermined routes and offer quiet operation, zero local emissions and high energy efficiency. However, the batteries of these buses are expensive and wear out in use. The battery ageing is expedited by fast charging and power spikes during operation. The contribution of this paper is the reduction of the power spikes and thus a prolonged battery lifetime. A novel hybrid energy storage system for electric buses is proposed by introducing a flywheel in addition to the existing battery. A simulation model of the hybrid energy storage system is presented, including a battery ageing model to measure the battery lifetime. The bus was simulated during its daily driving operation on different routes with different energy management strategies and flywheel configurations. These different flywheels as well as the driving cycle had a significant impact on the battery life increase. The proposed hybrid battery/flywheel storage system resulted in a battery lifetime increase of 20% on average.

Uncontrolled Keywords: hybrid electric bus, hybrid energy storage system, flywheel, battery lifetime, rule-based control, model predictive control
Status: Publisher's Version
URN: urn:nbn:de:tuda-tuprints-178034
Additional Information:

This article belongs to the Special Issue Battery Management for Electric Vehicles

Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 16 Department of Mechanical Engineering > Institute for Mechatronic Systems in Mechanical Engineering (IMS)
Date Deposited: 20 Nov 2023 09:54
Last Modified: 27 Nov 2023 07:25
SWORD Depositor: Deep Green
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/17803
PPN: 513471634
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