DEVELOPMENT OF A HYBRID SPV-DIESEL ENGINE BASED ELECTRICITY GENERATION SYSTEM

Abstract

By providing electricity, a silent revolution has taken place in the life style of villagers through their access to education, health care and improvement of village economy. For the hilly, forest and tribal area villages where low load potential, low load factor exists, it may be economical to consider the electrification of these areas to provide community and house hold lighting through SPV system. Due to higher system cost of stand-alone SPV system, efficient remote area power system can be devised by combining a diesel generator with a photovoltaic generator. This new concept is known as hybrid energy system and is being increasingly used for village electrification. SPV/Diesel generators and SPV stand-alone systems 'These systems combine the low initial cost of a diesel generator with high initial cost of PV generator. The present study has been carried out to work out the possibility of using SPV diesel hybrid system for using'SPVdiesel hybridp+system/or providing sustained power to a typical remote area. The behavior of a stand-alone PV hybrid (SPV and diesel engine-generator) system has been studied, considering the sizing of PV system by using calculated hourly total irradiation values on' tilted surface and assumed hourly load profile per day taken as constant over the year, for a typical village near the Leh. Two types of topologies have been adopted, under first topology series SPV-diesel system and for the second parallel spy- diesel hybrid system have been considered. It has been found that for the particular area considered, series SPV- diesel hybrid topology ,economically better as the unit cost of energy has been obtained 4 as Rs. 13.90. `