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

Volume

13

Issue

1

fYear

1998

fDate

3/1/1998 12:00:00 AM

Firstpage

7

Lastpage

14

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;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.658197

Filename

658197