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Hydrogen fuel cell power supply for hybrid electric multiple unit train

Jakubowski Aleksander, Lipiński Lech, Kwiatkowski Dawid, Karkosiński Dariusz, Karkosińska-Brzozowska Natalia

Archives of Electrical Engineering

2024

Vol. 73, nr 3

763--777

In European countries, electrified routes amount for 40% to 65% of the total railway networks length. Some of those routes are only partially electrified, and construction of a catenary network might not be viable on all routes. Consequently, operators run diesel trains under catenary or require both an electric and diesel vehicle, increasing costs of operation. Dual-mode vehicles exist, but they are mostly equipped with diesel generators, adding to the pollution and resulting in reduced movement dynamics. In this article, the authors present a hydrogen-hybrid electric multiple unit (HEMU), as an environmentally friendly vehicle for partially electrified railway lines. Insight into technologies utilized by both hybrid and hydrogen rail vehicles based on the literature review allowed for the formulation of requirements for such a vehicle. Furthermore, an approach to a modelling hybrid vehicle is described, including an energy management algorithm. A series of simulations were conducted, showing an operation of an HEMU on a partially electrified suburban/regional route. The presented simulation results show potential for the future introduction of hydrogen hybrid electric multiple units as a viable solution for partially electrified local and regional routes.

Storage electric multiple units on partially electrified suburban railway lines

Jakubowski Aleksander, Karkosińska-Brzozowska Natalia, Karwowski Krzysztof, Wilk Andrzej

Przegląd Elektrotechniczny

2020

R. 96, nr 4

158--161

The paper presents possible environmental, energy and economical gains implied by replacing conventional traction vehicles with independently powered electric multiple units (IPEMU) on partially electrified suburban railways. IPEMUs can operate in two modes of power supply – using an overhead catenary or the on–board battery storage. Appropriate computer simulations were carried out in the Matlab program, indicating the parameters of storage electric multiple units.

W artykule wskazano na potencjalne korzyści energetyczne, środowiskowe i częściowo ekonomiczne wynikające z zastąpienia konwencjonalnych jednostek trakcyjnych nowymi zasobnikowymi zespołami elektrycznymi mogącymi się poruszać na liniach kolejowych częściowo niezelektryfikowanych. Zespoły te mogą pracować w dwóch trybach – zasilania sieciowego lub zasobnikowego. Przeprowadzono odpowiednie symulacje komputerowe w programie Matlab wskazując na parametry zasobnikowych zespołów trakcyjnych.