ENERGY STORAGE APPLICATION FOR PHOTOVOLTAIC ARRAYS ON DISTRIBUTION NETWORKS FOR DAILY LOAD

Abstract

Because of the many disadvantages of classical energyproduction systems as production and transmission cost, air pollution, rawmaterial problem (natural gas, coal etc.), reliability etc., the integration ofRenewable Energy Sources (RESs) to distribution network is one of the mostimportant goals for new energy strategies. Photovoltaic (PV) Arrays as RES iswidely used at distribution networks nowadays. DC voltage is produced with PVarrays based on solar irradiation and temperature. Because of the solar irradiationPV arrays cannot produce power all day. Therefore Energy Storage Systems (ESSs)is an important part for RESs. Energy can be stored with ESSs and can be usedat the peak time. In this way the peak power and energy cost can be decreasedwith usage of ESS with PV arrays. In this work, total load power, power lossesand energy coast are analysed at 30 bus distribution network (DN) for theintegration of RESs and ESSs, and optimum usage of ESS for producers isexamined.