1 AIT Asian Institute of Technology

Modeling and stability analysis of Thailand power grid interconnection

AuthorWatcharakorn Pinthurat
Call NumberAIT Thesis no.ET-16-11
Subject(s)Electric power systems
Electric power distribution analysis
Smart power grids--Communication systems

NoteA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Energy
PublisherAsian Institute of Technology
AbstractThis study presents a working model of the National Power Grid of Thailand using an open source Power System Analysis Toolbox (PSAT). This study also develops and studies, as a whole, the power system of Thailand including the interconnection with other neighboring countries e.g., Laos PDR, which is not publicly available in any paper so far. The Thailand Power Grid model has been analyzed through power flow using Newton-Raphson method. Time domain simulation and small signal stability analysis are then employed to investigate various performances and limits of the system. With reference to the Power Development Plan (PDP) and Alternative Energy Development Plan (AEDP) of Thailand which aim to increase renewable energy production, especially wind and solar energy in the future, the Thailand Power Grid model has also been tested by integrating solar and wind plants by following those plans in the system. It is important to know the impact to the system on Fault Ride-Through (FRT) Capability and to check the compatibility with standards of FRT when connected solar and wind farms into the system. The selected existing wind and solar PV power plants has been tested by using doubly fed induction generator model and PQ model, respectively. In addition, power capacity of 150 MW of wind and solar PV power plants that may come in the future have been checked to ensure fault ride through capability before installed in sites by using different type of wind turbines, i.e. fixed speed wind turbine, direct drive synchronous generator wind turbine, and doubly fed induction generator wind turbine, and PQ model for solar PV power plant.
Year2016
TypeThesis
SchoolSchool of Environment, Resources, and Development (SERD)
DepartmentDepartment of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC))
Academic Program/FoSEnergy Technology (ET)
Chairperson(s)Singh, Jai Govind
Examination Committee(s)Weerakorn Ongsakul;Dhakal, Shobhakar;
Scholarship Donor(s)Royal Thai Government;Asian Institute of Technology Fellowship
DegreeThesis (M.Eng.) - Asian Institute of Technology, 2016


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