EFFECTIVENESS OF BATTERY-ULTRACAPACITOR COMBINATION FOR ENERGY SYSTEM STORAGE IN PLUG-IN HYBRID ELECTRIC RECREATIONAL BOAT (PHERB)

Plug-in Hybrid Electric Reactional Boat (PHERB) is a new innovation conventional boat for the recreational application used hybrid powertrain systems such as ESS, Electric Machine (EM) and Internal Combustion Engine (ICE). This paper study the effectives of battery-ultracapacitor combination used for Energy System Storage (ESS) in PHERB. In PHERB, battery-ultracapacitor is used in ESS to supply the power source to EM and ICE become a second power source to drive the boat. The work is illustrated through implemented numerically in MATLAB/SIMULINK environment with special energy management strategy for PHERB model. The power of the battery, the power of battery-ultracapacitor, the power of ESS demand, fuel economy and emission for PHERB were compared and analysed. The result shown that adding ultracapacitor in ESS in PHERB effected the power demand of ESS, fuel economy and emission.