Abstract:
This paper presents the use of a stepupdc-dc converter by cascading cockcroftwalton voltage multiplier for a hybridsystem. The hybrid renewable energy system used is a combination of as olar panel and a fuel cell. the conventionalmethodistouseaconvertertoincreasethevoltageand further uses a transformer to increase the voltage level of the output. The proposed converter topology used is boost converter cascaded with an n-stage cockcroft-walton voltage multiplier. the number of stages of the voltage multiplier increases the output level of the stepupdc-dcconverter which drives the load. The converter-voltage multiplier module provides continuous conduction with the voltage stress on cascaded capacitor-diode and switches being reduced. The output voltage obtained can be used in highvoltage applications. The simulation of the entire topology for hybrid system was done using matlab software.
Keywords: Cockcroft-Walton (CW) voltage multiplier, solar panel, fuel cell, step-up DC-DC converter