Study of AGC in The Sarawak - West Kalimantan Interconnected Power System under Deregulated Scenario

In the SEB interconnection and renewable energy sources, the West Kalimantan power system should prepare large reserve capacities for unexpected transmission line disconnection or connection. We suggest how to design supply- demand balance strategies for stable operations under unexpected situations for the SESCO-West Kalimantan power system interconnection and large-scale PLTU insertion in the West Kalimantan power system. They are connected in parallel for the power generation system. In Transmission Control Center, these ESSs are installed on idle capital of a substation to regulate the frequency. In Sektor Kapuas (Generation Coordinator), they are installed on a generation plant. At least four biomass power generation (PLTBm) are scheduled to be completed in West Kalimantan by 2019 as part of a high biomass-potential resources such as wood, palm oil, and agricultural residues, production utilized by developers of power plants/independent power producer (IPP). Because of these energy exchanges, both environmental problems and the supply/demand unbalance of energy may increase in SEA countries. In addition, the control mechanism of interconnection system responsible for maintaining the system frequency to the nominal value and the real power interchange between balancing authority areas to the scheduled values is referred to as Automatic Generation Control (AGC). AGC is a system for adjusting the power output of multiple generators at different power plants, in response to changes in the load. This paper presents the SESCO-West Kalimantan power system interconnection (SEB-PSI), distributed energy resources-based operation strategies targeting supply-demand balance and performance of the AGC system in Indonesia and Malaysia.