Title :
Undervoltage load shedding scheme for the Hydro-Quebec system
Author :
Lefebvre, D. ; Bernard, S. ; Van Cutsem, T.
Author_Institution :
TransEnergie Div., Hydro-Quebec, Montreal, Que., Canada
Abstract :
In recent years, Hydro-Quebec has undertaken a major program to upgrade the reliability of its transmission system. Much effort has been focused on increasing the system´s ability to withstand extreme contingencies, usually caused by multiple incidents or the successive tripping of transmission lines. This work deals with the conception and the control logic of an undervoltage load shedding scheme aimed at protecting the Hydro-Quebec system against long-term voltage instability. Various results showing the impact of the operation of these automatisms on the system stability are provided in this paper.
Keywords :
load shedding; power system stability; power transmission lines; power transmission protection; power transmission reliability; voltage regulators; Hydro-Quebec system; defense plan; extreme contingency; power transmission protection; power transmission reliability; transmission line tripping; undervoltage load shedding; voltage instability; Control systems; Logic; Power system transients; Protection; Security; Shunt (electrical); Stability; Substations; Transmission lines; Voltage control;
Conference_Titel :
Power Engineering Society General Meeting, 2004. IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-8465-2
DOI :
10.1109/PES.2004.1373145
