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Feasibility study of a diesel-powered hybrid DMU

Railway Engineering Science 2021年第3期29卷 271-284页

作者： Matteo Magelli Giuseppe Boccardo nicola bosso Nicolo Zampieri Pierangelo Farina Andrea Tosetto Francesco Mocera Aurelio Soma Department of Mechanical and Aerospace Engineering Politecnico di TorinoCorso Duca degli Abruzzi 24TurinItaly Blue Engineering S.R.L. Via Albenga 98RivoliTurinItaly

Nowadays,the interest in hybrid vehicles is constantly increasing,not only in the automotive sector,but also in other transportation systems,to reduce pollution and emissions and to improve the overall efficiency of the *** railway vehicles are typically the most eco-friendly transportation system,since commonly their primary energy source is electricity,they can still gain benefits from hybrid technologies,as many lines worldwide are not *** fact,hybrid solutions allow ICEpowered(internal combustion engine)railway vehicles,such as diesel multiple units(DMUs),to operate in fullelectric mode even when the track lacks *** possibility to switch to full electric mode is of paramount importance when the vehicle runs on urban or underground track sections,where low or zero emission levels are *** conduct the feasibility study of hybridization of an existing DMU vehicle,designed by Blue Engineering S.r.l.,running on the Aosta–Torino Italian railway line,which includes a non-electrified urban track section and an electrified underground *** hybridization is obtained by replacing one of the diesel generators installed on the original vehicle with a battery pack,which ensures the vehicle to operate in full-electric mode to complete its mission *** hybridization is also exploited to implement a regenerative braking strategy,which allows an increase in the energetical efficiency of the vehicle up to 18%.This work shows the sizing of the battery pack based on dynamic simulations performed on the Turin underground track section,and the results demonstrate the feasibility of the hybridization process.

关键词： Hybrid railway vehicle Energy saving Regenerative braking Diesel multiple unit Lithium battery

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