DESIGN AND CONTRUCTION OF 1 KVA VOLTAGE INVERTER WITH AUTOMATIC CHANGEOVER FOR REMOTE APPICATION

Abstract

This thesis document outlines the research, design and implementation of a high power DC to AC inverter with particular focus on remote locations. The final design consisted of modulating module (DC - AC inverter stage) consisting of oscillator and a buffer. The step up stage. These two stages form the DC - AC inverting stage. Then the charger stage which carries the charging mode and the fully charged mode indicators. And the changeover stage; At this stage, continous power generation from the inverting system is ensured by the changeover. This is achieved by swapping two batteries between charging and discharging modes. It also supplies power to the charger from either the output of the inverter or the primary supply. The system was implemented and tested to generate 220V AC at lOOOW.