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This research aims at developing an active energy management system for an experimental platform of the multi-energy-source electric vehicle (EV). The main purposes are to deal with the shortages of long charging time, short battery life cycles, and insufficient mileage of EVs. Hence, this research was separated into three segments: (1) active power distribution hardware, and (2) performance verification...
This paper presents an analysis of energy management strategies (EMS) applied to a hybrid power sources architecture composed of fuel cell and supercapacitor for electric vehicle application. An EMS based on optimal control theory is discussed and compared to the EMS based on power frequency separation that allows power load frequency decomposition. Firstly, the electrical model of the fuel cell and...
Direct methanol fuel cells (DMFC) have been widely researched for applications in portable electronics due to their use of liquid fuel for easy storage and transportation compared to gaseous hydrogen. However, DMFC’s performance is strongly affected by methanol crossover that significantly degrades the energy efficiency at low output power, and is characterized by an increasing efficiency at increasing...
In this paper is proposed a fuel cell hybrid power source architecture for electrical vehicle applications that operates at maximum power point (MPP) of the fuel cell stack. The power architecture is implemented and simulated in Matlab - Simulink® environment. The models for all used energy source, energy storage devices and power circuits are given. Simulations results and some designing aspects...
This paper presents an optimal load sharing strategy for a PV/FC/battery/supercap hybrid power system that optimizes the system performance. The fuel cell is used to complement the intermittent output of the PV source while the battery storage is used to compensate for part of the temporary peak demand which the PV and fuel cell can't meet thus avoiding oversizing of fuel cell. Supercapacitor energy...
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