Cooperation Unit - Timorese Academic Journal of Science & Technology

Abstract: When PV system is installed and operated with distribution system, there are technical problems that customer voltage should be violated from the allowable limit due to sudden output fluctuation of PV system. In order to overcome this problem, a step voltage regulator (SVR) has been installed and operated in a long- distance primary feeder which is interconnected with PV system in order to maintain an appropriate voltage range in distribution system. This paper proposes to evaluate the voltage characteristics of low voltage customer in distribution system interconnected with the SVR and ESS (energy storage system), based on the control characteristics of the ESS during the delay time of the SVR, by using PSCAD/EMTDC software.

Keywords: step voltage regulator, distribution systems, energy storages system.