Design of energy management model for renewable energy based hybrid power system

Abstract

Environmental issues related with fossil fuels and their depleting resources is encouraging more use of renewable energy resources. They are free of cost and the cost of equipments needed (like solar cells) is also decreasing thereby making such systems economically competitive. Educational institutes are most suitable for rooftop solar photovoltaic (PV) system implementation as it minimizes land requirement. Power obtained from PV system varies with the type of components used. Biomass is renewable energy resource which can be used for obtaining energy and biofuels using suitable techniques. Different types of biomass including wastes are widely available and can be exploited. Increase in generation of different types of wastes in both urban as well as rural areas and the mismanagement in handling and treating of these wastes are creating several issues for the environment. Organic part of municipal solid waste, animal waste and sewage sludge are used for obtaining biogas through the process of anaerobic digestion. Byproduct obtained from anaerobic digestion is digested slurry which is rich in nutrients and finds application in agriculture. The complex and rigid structure of these lignocelluloses wastes is a big hindrance in anaerobic digestion. Solid Oxide Fuel cell is a electrochemical energy conversion device that continuously converts a part of free energy change in a chemical reaction to electrical energy at a temperature of 600- 1200 and#8304;C. As long as hydrogen rich fuel like biogas is supplied to it s anode, electricity will be produced. Solar availability is intermittent and so biomass based power generation is connected with the PV system making a hybrid power system. In the hybrid power system, the output of the biomass system is varied in accordance with the PV system thereby delivering constant power. A comparison is done between the type of components used as well as components manufactured by different manufacturers in PVSYST software. Costs involved in installation and running of such PV systems are a