M.H. Haque
Transient stability, SVC, STATCOM, FACTS, transmission line
Shunt FACTS devices are very commonly used in a modern power system to improve the voltage profile, damping, and stability of the system. However, most of the previous work on stability improvement used the simplified line model obtained by considering only the line inductance and ignoring the line resistance and capacitance. This article investigates the effects of various line parameters and shunt FACTS devices on first-swing stability limit of a simple power system. Four different ways of incorporating the line parameters into the line model are considered, and the concept of the equal area criterion is used in determining the first-swing stability limit of the system. The results obtained for various line models and shunt FACTS devices are also compared.
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