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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 (2021)
Prolongation of Battery Lifetime for Electric Buses through Flywheel Integration.
In: Energies, 14 (4)
doi: 10.3390/en14040899
Artikel, Bibliographie

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Kurzbeschreibung (Abstract)

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.

Typ des Eintrags: Artikel
Erschienen: 2021
Autor(en): Glücker, Philipp ; Kivekäs, Klaus ; Vepsäläinen, Jari ; Mouratidis, Panagiotis ; Schneider, Maximilian ; Rinderknecht, Stephan ; Tammi, Kari
Art des Eintrags: Bibliographie
Titel: Prolongation of Battery Lifetime for Electric Buses through Flywheel Integration
Sprache: Englisch
Publikationsjahr: 9 Februar 2021
Verlag: MDPI
Titel der Zeitschrift, Zeitung oder Schriftenreihe: Energies
Jahrgang/Volume einer Zeitschrift: 14
(Heft-)Nummer: 4
DOI: 10.3390/en14040899
URL / URN: https://www.mdpi.com/1996-1073/14/4/899
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Kurzbeschreibung (Abstract):

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.

Freie Schlagworte: hybrid electric bus, hybrid energy storage system, flywheel, battery lifetime, rule-based control, model predictive control
Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau
16 Fachbereich Maschinenbau > Institut für Mechatronische Systeme im Maschinenbau (IMS)
Hinterlegungsdatum: 16 Feb 2021 06:08
Letzte Änderung: 21 Nov 2023 06:30
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