An electric vehicle's success mostly depends on the efficient design of the system to deliver the expected performance. The efficient system design is achieved with suitable engine design, drag minimization and intelligent power module management. This paper focuses on the intelligent power module management to overcome the pressure and viscous drag for an Unmanned Surface Vehicle (USV). The USV design under development by Villanova University and the Naval Surface Warfare Center Carderock Division (NSWCCD) Philadelphia is expected to conduct Intelligence, Surveillance and Reconnaissance (ISR) missions in the sea for about two weeks duration. The paper proposes a hybrid power solution to meet the power demands of an USV during the mission. The hybrid power system is designed by a combination of renewable energy resources, conventional fossil-fueled energy sources and energy storage options. The hybrid power system comprises a solar array, a sea wave power converter, a fuel cell system, a diesel generator and a lithium ion battery pack. The paper describes the required drag for an eleven meter Rigid Hull Inflatable Boat (RHIB) platform, modeling of each power source and optimized power solution for a RHIB. A combination of hierarchical and cost function minimization optimization is applied to the hybrid power module design. The optimization approach gives a high priority to the natural energy sources, i.e. sun and wave and minimizes the energy consumption from the storage energy sources, i.e. battery bank, fuel cell system based on H2 storage and diesel generator based on gasoline. The optimized result provides the individual contribution of each power source to the load demand of an USV. The solar array and wave energy converter supply the maximum energy on the availability of sun and favorable waves. The rest of the energy sources, i.e. battery bank, fuel cell system and diesel generator contribute proportionally to their energy/cost ratio. Results also suggest the appropriate sizing of each power element to support the USV demand during the extended period of the mission.


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    Titel :

    Energy efficient system design by optimizing hybrid power system for unmanned surface vehicle


    Beteiligte:
    Khare, Neeta (Autor:in) / Singh, Pritpal (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2012


    Format / Umfang :

    13 Seiten, 15 Bilder, 20 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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