Performance Enhancement Analysis of an Isolated Dc-Dc Converter Using Fuzzy Logic Controller

Abstract

          High-intensity discharge lamp (HID), photovoltaic and fuel cell energy systems dc back-up energy systems and electric vehicles are the some industrial applications are required high voltage gain dc–dc converters. A Boost Converter is not able to obtain a high voltage gain even with extreme duty cycle. To increase the voltage gain for the new Boost converter from the solar power application, this project proposes usage of the coupled inductor and parallel capacitor from output side, so that more than 10 times of input voltage is produced. The proposed boost converter has a input voltage of 60V and produces output voltage of 600V and output power is 900 watts. The output voltage is increased, voltage stress across the active switch is reduced and output ripples are minimized. The converter is operated at first in open-loop mode and further connected with closed-loop manner with Fuzzy Logic Controllers using Mat lab/Simulink software.