Studay Super-Capacitor Energy Storage syastem for improving Power Quality in Standalone PV System

Abstract

Recently the demands on various sources of energy especially renewable energy sources have significantly increasing. Demand escalation and technology implementation is accompanied with some issues. One of the major drawbacks of renewable energy generation is the change in energy production due to its variable in nature which adversely impact local loads that are sensitive to poor power quality. To mitigate large swings in power, the renewable energy source output conditioned by using energy storage systems and a small energy buffer. The best known storage was batteries, flywheels (FW) and pumped hydro power. The research for new storage systemsisstillgoing on.Asa result,newstorage systems like hydrogen and compressed air were proposed.Mostsystemsstoreelectricalenergy in another type of energy. Their cost, limited lifetime and the power injection capacity are serious disadvantages. To solve these problems, an improvementsystemis developed to smooth the renewable source power output by utilizing the energyofsupercapacitorforhigh energy density with a high power performance storagesystem. In this thesis, a hybrid battery-supercapacitor based power storage and injection system capable of integrating a PV system as a manageable generation system to moderate fluctuations in the energy generated will be introduced and studied.A sample load is taken for analyzing the reliability of the power supply with PVsystem and the storage system with and without Supercapacitor compared finally, hybrid Battery-Supercapacitor storage system analyzed.The simulation is carried out using detailed model of MATLAB®/Simulink model and for economic analysis Homer software and Microsoft excel used.This work can reduce charge discharge property of battery and battery states of discharge were reduced by 50.5%.The battery replacement cost decrease up to 40-50% by using this hybrid storage system.