Title :
EMTP based simulation of a self-excited induction generator after its disconnection from the grid
Author :
Ouhrouche, Mohand A. ; Do, Xuan D. ; Lê, Quang M. ; Chaîné, Robert
Author_Institution :
Dept. of Electr. Eng., Ecole Polytech. de Montreal, Canada
fDate :
3/1/1998 12:00:00 AM
Abstract :
A study of the application of an induction generator (IG) in power systems is presented in this paper. The Electromagnetic Transients Program (EMTP) is used to investigate the self-excitation phenomenon and the dynamic behaviour of the induction generator, resulting from the grid disconnection. The results demonstrate that, if the amount of the external reactive power source is sufficient to ensure self-excitation of the induction generator, high and abnormal overvoltages occur which can be dangerous for the insulation integrity of the nonutility generator (NUG) equipment, the local load and, even worse, for the maintenance personnel
Keywords :
asynchronous generators; digital simulation; electric machine analysis computing; machine insulation; machine theory; overvoltage; reactive power; EMTP based simulation; Electromagnetic Transients Program; abnormal overvoltages; dynamic behaviour; external reactive power source; grid disconnection; high overvoltages; insulation integrity; local load; maintenance personnel; nonutility generator equipment; self-excitation; self-excitation phenomenon; self-excited induction generator; EMTP; Induction generators; Insulation; Personnel; Power generation; Power system dynamics; Power system simulation; Power system transients; Reactive power; Surges;
Journal_Title :
Energy Conversion, IEEE Transactions on
