power system stability; sensitivity to rotor swings; transient stability; voltage sag
Abstract :
[en] The paper introduces an approach to investigate voltage sags, which are caused by large generator rotor swings following a transient disturbance. Therefore, the method exploits sensitivities derived from the algebraic network equations. These provide information on the impact of a generator on the voltage magnitude at a load bus and the e ffect of load variation on the generator's power injection. It is shown that these sensitivities give valuable information to identify critical generator-load pairs and locations for applying preventive control measures.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Weckesser, Tilman
Johannsson, Hjortur
Ostergaard, Jacob
Van Cutsem, Thierry ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Systèmes et modélisation
Language :
English
Title :
Derivation and Application of Sensitivities to Assess Transient Voltage Sags caused by Rotor Swings
Publication date :
November 2015
Journal title :
International Journal of Electrical Power and Energy Systems
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