A SMART THREE-PORT RECONFIGURATION CONVERTER USING FUZZY LOGIC FOR EMERGENCY ENERGY STORAGE VEHICLES

Abstract

The rapid growth of electric vehicles (EVs) and renewable energy systems has increased the demand for efficient power conversion technologies capable of managing multiple energy sources and storage devices. Conventional converters suffer from limited flexibility, reduced efficiency, and poor dynamic performance under varying operating conditions. This paper proposes a Smart Three-Port Reconfiguration Converter (STPRC) integrated with a Fuzzy Logic Controller (FLC) for Emergency Energy Storage Vehicles (EESVs). The proposed converter consists of three power ports interfacing a battery energy storage system, supercapacitor bank, and DC load/renewable source. The reconfigurable architecture enables bidirectional power flow and seamless energy management during emergency situations such as grid outages, disaster relief operations, and mobile power support applications. The FLC continuously monitors battery stateof-charge (SOC), load demand, and source availability to determine optimal powersharing decisions. MATLAB/Simulink simulations demonstrate that the proposed system achieves faster dynamic response, reduced voltage fluctuations, improved converter efficiency, and enhanced battery lifespan compared with conventional PIcontrolled converters. Results indicate a reduction in settling time by 35%, voltage deviation by 42%, and energy utilization improvement by 18%, making the proposed system suitable for emergency energy storage vehicle applications.