EXTENSIVE MODELLING OF FREQUENCY RESPONSE IN DETERMINING MAXIMUM ALLOWABLE RENEWABLE ENERGY PENETRATION IN THE POWER SYSTEM CONSIDERING FREQUENCY STABILITY LIMIT
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%...
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| Format: | Theses |
| Language: | Indonesia |
| Online Access: | https://digilib.itb.ac.id/gdl/view/55324 |
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| Institution: | Institut Teknologi Bandung |
| Language: | Indonesia |
| Summary: | 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%.
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