Analysis of Suitable Interconnection Points of Offshore Wind Farms in the Gulf of Thailand

The off coast of the Gulf of Thailand around Koh Tao and Koh Pha-Ngan has abundant wind resources, which can help for developing offshore wind farms with the maximum capacity of 720 MWs. In this paper, grid integration analysis of the offshore wind farms on the 115-kV transmission of Provincial Electricity Authority (PEA) was performed. The power system analysis of power flow and voltage stability were simulated with the full-power conversion wind turbine generators by using the DIgSILENT PowerFactory program. The possible connected points were listed by the physical criteria, such as the amount of load, and a distance to an offshore wind farm. Finally, the suitable connected points were considered based on the performances of the system before and after offshore wind farm connections. The study results may be used as a reference to develop an offshore wind farm in the Gulf of Thailand in the future.