الفهرس 
INTRODUCTIONOnly 14 pages are availabe for public view
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Abstract
Marine shipping has now become one of the major worldwide contributors to pollution and greenhouse gas emissions. Hybrid ships technology based on multiple energy sources have taken a great scope of research to get rid of ship emissions and cut down fuel expenses. Insufficiency between power generated and the demand load to withstand the transient behavior on ships during severe environmental conditions will lead to a blackout. Thus, an efficient energy management system is a mandatory scope for achieving higher system efficiency, also enhancing the lifetime of the onboard storage systems is another salient scope. Considering energy storage system conditions, both the battery state of charge and temperature represent important parameters to prevent any malfunction of the storage system that eventually degrades the whole system. In this thesis, a two battery packs have been controlled using fuzzy logic control. The overall aim is to control the charging/discharging current while including both the battery state of charge and temperature in the energy management system. The full design of the proposed controllers are described and simulated using MATLAB. The results prove the successfulness of the proposed controller in stabilizing the system voltage level during both sudden increase and decrease of load demand while keeping the energy storage system in a healthy condition.