Power System Stability Improvement Using （改善电力系统稳定性）.pdf

International Journal of Modern Engineering Research (IJMER) Vol. 1, Issue.2, pp-666-672 ISSN: 2249-6645 Power System Stability Improvement Using FACTS Devices Alok Kumar Mohanty*, Amar Kumar Barik** *Asst. Professor, Department of Electrical Electronics Engineering, Raajdhani Engineering College, Bhubaneswar-17 ** Lecturer, Department of Electrical Electronics Engineering, Raajdhani Engineering College , Bhubaneswar-17 ABSTRACT In the last two decades, power demand has device. The FACTS devices can be divided in three increased substantially while the expansion of groups, dependent on their switching technology: power generation and transmission has been mechanically switched (such as phase shifting severely limited due to limited resources and transformers), thyristor switched or fast switched, environmental restrictions. As a consequence, using IGBTs. While some types of FACTS, such as some transmission lines are heavily loaded and the system stability becomes a power transfer-limiting the phase shifting transformer (PST) and the static factor. Flexible AC transmission systems (FACTS) VAR compensator (SVC) are already well known and controllers have been mainly used for solving used in power systems, new developments in power various power system steady state control electronics and control have extended the application problems. Flexible AC transmission systems or rang