Hybrid Power Control System

Abstract

A Hybrid Power Control System (HPCS) that gives out a single output has been designed to enable the automatic operation and transfer of power supply from three sources (public utility supply, photovoltaic system and ac generator). The Hybrid Power Control System provides a functional system that provides an automatic switching of power supply between the primary source (public utility) and two alternative sources (photovoltaic system and generator). The method employed in designing the HPCS involves the use of contactors, ATMEGA16L microcontroller, relay and motor drivers as part of the major components in the design. Also incorporated in the HPCS is a 12Vdc and a 5Vdc power supply unit, optocouplers and a liquid crystal display (LCD) for displaying the status of the HPCS at any particular time. The hybrid power control system demonstrates its ability to perform automatic power change over activities with no human interaction.