Optimal Scheduling to Manage an Electric Bus Fleet Overnight Charging

Adnane Houbbadi, Rochdi Trigui, Serge Pelissier, Eduardo Redondo-Iglesias and Tanguy Bouton
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Adnane Houbbadi: Univ Lyon, IFSTTAR, AME, Eco7, F-69675 Lyon, France
Rochdi Trigui: Univ Lyon, IFSTTAR, AME, Eco7, F-69675 Lyon, France
Serge Pelissier: Univ Lyon, IFSTTAR, AME, Eco7, F-69675 Lyon, France
Eduardo Redondo-Iglesias: Univ Lyon, IFSTTAR, AME, Eco7, F-69675 Lyon, France
Tanguy Bouton: TRANSDEV, 92130 Issy-les-Moulineaux, France

Energies, 2019, vol. 12, issue 14, 1-17

Abstract: Electro-mobility is increasing significantly in the urban public transport and continues to face important challenges. Electric bus fleets require high performance and extended longevity of lithium-ion battery at highly variable temperature and in different operating conditions. On the other hand, bus operators are more concerned about reducing operation and maintenance costs, which affects the battery aging cost and represents a significant economic parameter for the deployment of electric bus fleets. This paper introduces a methodological approach to manage overnight charging of an electric bus fleet. This approach identifies an optimal charging strategy that minimizes the battery aging cost (the cost of replacing the battery spread over the battery lifetime). The optimization constraints are related to the bus operating conditions, the electric vehicle supply equipment, and the power grid. The optimization evaluates the fitness function through the coupled modeling of electro-thermal and aging properties of lithium-ion batteries. Simulation results indicate a significant reduction in the battery capacity loss over 10 years of operation for the optimal charging strategy compared to three typical charging strategies.

Keywords: battery aging; electric buses; electric vehicles; electric vehicle supply equipment; nonlinear programming (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (19)

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