EXTENSIVE MODELLING OF FREQUENCY RESPONSE IN DETERMINING MAXIMUM ALLOWABLE RENEWABLE ENERGY PENETRATION IN THE POWER SYSTEM CONSIDERING FREQUENCY STABILITY LIMIT

• المؤلف الرئيسي: Al Paraby Saragih, Juligo
• التنسيق: Theses
• اللغة: Indonesia
• الوصول للمادة أونلاين: https://digilib.itb.ac.id/gdl/view/55324
• المؤسسة: Institut Teknologi Bandung

Recently, the integration of renewable energy sources into the power system has become a major focus of the world in reducing carbon emissions. For example, in Indonesia, there is a new policy issued by the government where the target of penetration of renewable energy reaches 23% in 2025 and 31% in 2050. However, due to its intermittent nature and unable to provide inertia, the use of renewable energy creates various challenges when integrated into the system. The one is frequency stability. Therefore, it is necessary to conduct a study to determine the maximum penetration level of renewable energy in order to make the system frequency remains stable. This paper proposes extensive frequency response model to determine the maximum penetration level of renewable energy. Extensive modeling was carried out using MATLAB Simulink software. The North Sumatra power system was selected in observing the system frequency response. The inertia constant and load-damping constant values for the whole system were obtained from a simulation of the power system software, DIgSILENT PowerFactory. In the proposed model, there are turbine-governor models for three different types of conventional generators: steam power plant, gas power plant, and combined-cycle power plant. There are two parameters of frequency stability that are observed: frequency deviation and rate of change of frequency. This paper also presented frequency response curves for different renewable energy penetration levels: 10%, 20%, and 30%. The analysis and results showed the maximum allowable penetration level of renewable energy in the implemented power system is 27.5%.