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Energy management of multi-sources vehicles is a complex task. The higher the number of sources becomes, the higher the complexity is. In this study, a decomposed energy management strategy is used for a vehicle fed by three energy sources: a fuel-cell, a battery and supercapacitors. This decomposition allows simplifying the synthesis of the Energy Management Strategy. A comparison with a fuel cell...
Nowadays, no electrochemical energy system presents a competitive operation if compared with internal combustion engine, which is the reason for combining electrochemical energy systems to obtain a hybrid energy storage system. This paper presents a fuel cell-battery-ultracapacitor system for vehicle application. The objective of this paper is to present the Energetic Macroscopic Representation (EMR)...
The objective of this paper is to propose a model to develop control laws and energy management of a fuel cell system and of a fuel cell vehicle. Water phenomena into the device have a great influence on the stack efficiency and on faulty conditions. Henceforth the gas supply model must be able to work with a multi-species gas mix and to describe biphasic effects. To tackle the control objective,...
The objective of this work is to study the impact of the air supply of a fuel cell system on the humidification and water management issues. The first study consists in defining an indicator of the humidification state, which represents the output air moisture content and quantifies the quality of the water management. This indicator is evaluated both in simulation and experimentally. It is shown...
This paper presents power sources models for Hybrid Electric Vehicles (HEV). These models are designed in order to be integrated in a complete HEV simulation. Moreover, the final objective of this simulation is to study two control levels: the local control of each subsystems and the energy management of the entire system. Consequently, a multi-physics control oriented formalism is used: Energetic...
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