EPE Association: EPE 2025 - LS1b: Electromobility

EPE 2025 - LS1b: Electromobility
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2025 - Conference > EPE 2025 - Topic 01: Electromobility - The Powerful Factor in Reducing CO2 > EPE 2025 - LS1b: Electromobility

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   Analysis of Aged Power Modules considering the Loss Calculation of a Heavy-Duty Fuel Cell Truck
By Yavuz GÜRLEK, Patrick HEIMLER, James ABUOGO, Sören GESELL, Martin ACKERL, Roland DOLD, Thomas BASLER [View]
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Abstract: The aging of power modules in Heavy-Duty Fuel Cell Trucks (HDFCT) is crucial because, as these modules age, their on-state resistance increases. This increase results mainly in higher switching and conduction losses in case of a Si IGBT, ultimately reducing the efficiency of the truck. This work presents the results of simulated switching and conduction losses based on a real mission profile using actual measured (aged) devices. These devices exhibit varying on-state resistances.

   Analysis of Energy Storage Solutions for Ship Maneuvering in Ports
By Marcos LAFOZ, Gustavo NAVARRO, Marcos BLANCO, Jorge NÁJERA, Eduardo RAUSELL, Javier MUNILLA [View]
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Abstract: The recent regulation about pollution reduction in port areas promote the development of electric ships, at least to operate with no fuel during approaching and departing. The paper presents the analysis of different energy storage alternatives for the case of power supply of a ferry during the docking and undocking manoeuvres. Considering that the use of batteries does not fully comply with the maritime conditions, short-term energy storage technologies are studied as alternative, specifically flywheels and supercapacitors. After the analysis of these systems, based on models parametrized from prototypes characterized at the lab, neither of them is suitable for the case study. However, the use of a battery/SCs hybrid energy storage provides a techno-economic feasible solution, specially under the situation of dimensioning the complete system according to the consumption profile of the ferry.

   Impedance measurement methods for assessing the performance of Fuel Cells and Li batteries in on-board applications
By Jules MILLET, Daniel DEPERNET, Ali SARI, Frédéric GUSTIN, Hugo HELBLING [View]
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Abstract: This study focuses on the characterization of fuel cells and batteries to assess their State of Health (SoH) using electrochemical impedance spectroscopy (EIS) in an on-board setting. The characterization methods include both active and passive EIS techniques, complemented by robust signal processing algorithms. Initial simulation results demonstrate the potential of impedance analysis for accurate SoH estimation. In addition, the implementation on a Texas Instruments board highlights the practical challenges associated with real-time programming, paving the way for future optimization and deployment in realworld applications.

EPE 2025 - LS1b: Electromobility
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2025 - Conference > EPE 2025 - Topic 01: Electromobility - The Powerful Factor in Reducing CO2 > EPE 2025 - LS1b: Electromobility
	[return to parent folder]

	Analysis of Aged Power Modules considering the Loss Calculation of a Heavy-Duty Fuel Cell Truck By Yavuz GÜRLEK, Patrick HEIMLER, James ABUOGO, Sören GESELL, Martin ACKERL, Roland DOLD, Thomas BASLER	[View] [Download]
Abstract: The aging of power modules in Heavy-Duty Fuel Cell Trucks (HDFCT) is crucial because, as these modules age, their on-state resistance increases. This increase results mainly in higher switching and conduction losses in case of a Si IGBT, ultimately reducing the efficiency of the truck. This work presents the results of simulated switching and conduction losses based on a real mission profile using actual measured (aged) devices. These devices exhibit varying on-state resistances.

	Analysis of Energy Storage Solutions for Ship Maneuvering in Ports By Marcos LAFOZ, Gustavo NAVARRO, Marcos BLANCO, Jorge NÁJERA, Eduardo RAUSELL, Javier MUNILLA	[View] [Download]
Abstract: The recent regulation about pollution reduction in port areas promote the development of electric ships, at least to operate with no fuel during approaching and departing. The paper presents the analysis of different energy storage alternatives for the case of power supply of a ferry during the docking and undocking manoeuvres. Considering that the use of batteries does not fully comply with the maritime conditions, short-term energy storage technologies are studied as alternative, specifically flywheels and supercapacitors. After the analysis of these systems, based on models parametrized from prototypes characterized at the lab, neither of them is suitable for the case study. However, the use of a battery/SCs hybrid energy storage provides a techno-economic feasible solution, specially under the situation of dimensioning the complete system according to the consumption profile of the ferry.

	Impedance measurement methods for assessing the performance of Fuel Cells and Li batteries in on-board applications By Jules MILLET, Daniel DEPERNET, Ali SARI, Frédéric GUSTIN, Hugo HELBLING	[View] [Download]
Abstract: This study focuses on the characterization of fuel cells and batteries to assess their State of Health (SoH) using electrochemical impedance spectroscopy (EIS) in an on-board setting. The characterization methods include both active and passive EIS techniques, complemented by robust signal processing algorithms. Initial simulation results demonstrate the potential of impedance analysis for accurate SoH estimation. In addition, the implementation on a Texas Instruments board highlights the practical challenges associated with real-time programming, paving the way for future optimization and deployment in realworld applications.