Transient Stability Analysis of a Hybrid Grid-Connected Battery-PV in Baubau Power System

The electrical energy produced by fossil fuel has two disadvantages: the environment pollution, and nonrenewable nature. To overcome these problems, Photovoltaic (PV) technology has been developed. But, the characteristics of the PV output power depending on the intensity of the existing sunlight, so it can cause instability in the system. This instability can be minimized by combining a PV system with a battery. This study aims to conduct transient stability analysis on the Baubau power system when a 10 MWac hybrid PV-battery power plant is added. In this study, the power flow and stability analysis of the Baubau system was simulated using ETAP software and the energy mix from power plants was simulated using Homer Pro software. From the simulation result can be concluded that installation of 10 MWac PV + 4 MWh batteries in the Baubau System did not harm the overall system stability. The hybrid system can increase the power capacity and installed power of the system.