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Turbine Governor Modeling and Scripting in an Open Source Simulation Software
Power System Analysis Toolbox (PSAT) is an educational open source software for power system analysis studies . The software is Matlab-based and is freely distributed online . PSAT is currently being used for power system stability analysis of the Nordic power system by the Electric Power Systems Division at KTH. Main features of the software are as follows:
1) PSAT has user-friendly graphical user interfaces (GUI) as well as a Simulink-based toolbox;
2) PSAT can cover a wide scale of test systems; from small to medium size.
3) PSAT covers several important packages for power system studies such as the power flow (PF), the optimal power flow (OPF), and the small signal stability analysis (SSA).
4) PSAT is flexible; being Matlab-based enables PSAT to run on common operating systems including Windows, Mac OS X, UNIX, and Linux. PSAT also runs on GNU/Octave. It also allows data file conversion from and to other formats.
Dynamic models of TGs, as well as static models, are incorporated within PSAT. However, the PSAT’s TG models do not offer different types of governors, for example, hydraulic governors which are important in the study of the Nordic system are not provided in PSAT. With properly modeled TG systems, study on the small-signal stability analysis of power systems could be accurately carried out.
This thesis will focus on developing the turbine governor models for PSAT implementation.
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