The Impact of The Auto-reclose using Leader-Follower Control Scheme on Transmission Power System Stability Enhancement

The self-restoration ability in the power system following a temporary fault has become an attention since its contribution to the power system stability. The aim of this study is to analyze the impact of the auto reclose on the transmission line on a radial network stability by using the leader-follower control scheme. The leader-follower control scheme is used to minimize the outage time and to reduce the stress on one of the circuit breakers due to closing on permanent fault. This study is applied to a case of an electrical transmission system 150 kV in Gorontalo Province, Indonesia. Currently, the power transmission system in Gorontalo Province has not applied an auto reclosing scheme yet. This study is simulated in order to provide a stability assessment of: the rotor angle, rotor speed, active and reactive power in line transmission, current flow in line transmission, the voltage on bus, and the frequency on bus. The result of this study indicates that a significant voltage drop occurs on one of the bus in the network following fault.