Design and Implementation of Bipolar Sepic-Cuk Converter with Fuzzy Logic Control for Battery Charging Application

Abstract

This research presents the design of an electricity distribution system with a solar cell source that is applied to the battery charging process. The charging setting uses a modified DC-DC converter configuration from the modified Sepic and Cuk converters. With one Bipolar Sepic-Cuk Converter voltage source produces two outputs of the same voltage value with different polarities. The method applied is constant voltage, where the voltage generated by the solar panel will always be constant and the same in accordance with the setpoint specified in the charging process. The control used is a fuzzy logic control that functions to regulate the PWM output signal by getting the duty cycle value. The voltage sensor is used as feedback from the control to be processed by the microcontroller so as to produce a PWM signal which will be used to regulate switching on the Bipolar Sepic-Cuk converter circuit. The output voltage of the converter has been achieved with fuzzy control with irradiation and temperature variations. The results of the output voltage can be maintained at a predetermined voltage. The error percentage of the generated voltage is equal to 0.14 - 0.5%.