Title :
Stability margin reduction due to synchronous machine saturation
Author :
Poblete, J.P. ; Deckmann, S.M.
Author_Institution :
FEE/UNICAMP, Campinas, Brazil
Abstract :
This paper investigates the saturation effect on synchronizing and damping torques of electromechanical oscillation modes. The oscillatory stability limit curves for constant terminal voltage are determined with and without saturation and compared with the machine capability curve, showing that saturation reduces the stability margin for large inductive loading. This result is important for correct tuning of power system stabilizers
Keywords :
damping; machine theory; oscillations; power system stability; synchronous machines; torque; damping torque; electromechanical oscillations; inductive loading; machine capability curve; oscillatory stability limit curve; power system stabilizer; saturation; stability margin; synchronizing torque; synchronous machine; tuning; Control systems; Damping; Frequency; Magnetic flux; Power system dynamics; Power system interconnection; Power system stability; Saturation magnetization; Synchronous machines; Voltage;
Conference_Titel :
Circuits and Systems, 1995., Proceedings., Proceedings of the 38th Midwest Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-2972-4
DOI :
10.1109/MWSCAS.1995.510284
