Under Voltage Load Shedding Simulation for Southern Sulawesi Power System with Integration of Wind Power Plants

Abstract

This paper discusses the simulation of under voltage load Shedding (UVLS) by considering the integration of wind power plants (WPP). The WPPs which will be integrated into the Southern Sulawesi interconnection system owned by PT. PLN (Persero) are located in the Sidrap area of approximately 70 MW using 30 wind turbines, generating 2.5 MW per turbine and in the Jeneponto area of about 62.5 MW capacity with the same number of wind turbines. Different wind conditions may affect the power system causing a major or minor disturbance, either in a release of generation or a transmission line. Based on this issue, this study aims to perform a simulation on areas that have voltage collapse when the WPPs are in the Southern Sulawesi system. The method of dynamic sensitivity presented in this paper. From the simulation and analysis results, it is obtained that load shedding locations in Makale, Palopo and Latuppa can stabilize the system’s voltage but causing the Poso area to be in an over voltage condition.