Literature Review on Transient Stability

Abstract

Power system stability is defined as the ability of power system to recover its initial steady state after any deviation of the power system during its operation. Present time power systems are being operated nearer to their stability limits due to economic and environmental reasons. Maintaining a stable and secure operation of a power system is therefore a very important and challenging issue. Transient stability has been given much attention by power system researchers and planners in recent years, and is being regarded as one of the major sources of power system insecurity. FACTS devices, transmission line design, AVR(automatic voltage regulators),load shedding, bundled conductors ,fast switching devices, high speed excitation system play an important role in improving the transient stability, increasing transmission capacity and damping low frequency oscillations. In this paper also factors affecting transient stability and how we can improving the transient stability is discussed.