ANALYSIS OF MULTIPLE OUTPUT DC-DC CONVERTERS

Abstract

DC-DC Conversion technology is the major subject area in the field of power engineering and drives and has been under development form six decades. Most of the advance systems like telecommunication and computer systems use the single output DC-DC Converter for different levels of voltage in the same system, which limits the efficiency, power density and increases the cost of the whole system. To achieve the features like high efficiency and high density for advance systems Multiple Output DC-DC Converter are gathering much attention, and most of the research work is going to get the regulated multiple outputs, for different application like computer, electric vehicles, aircraft etc. The dissertation presents a systematic and comprehensive approach for the design and closed loop control implementation of three Multiple Output DC-DC Converter topologies. Two different control techniques have been employed for closed loop control of topologies and simulated using MATLAB/Simulink model, Simulation results have been obtained for the below control techniques for normal and different disturbances cases. 1. PID Controller. 2 Fuzzy Logic Control(FLC) A detail state space modeling, design and closed loop PWM (Error Amplifier) and FLC controlled Independently Regulated Multiple Output Forward Converter for precise and independent regulation of each output have been implemented and simulated using PSIM and MATLAB/Simulink model.