Voltage collapse precipitated by the immediate change in stability when generator reactive power limits are encountered

Author

Dobson, Ian ; Lu, Liming

Author_Institution

Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA

Volume

39

Issue

9

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

762

Lastpage

766

Abstract

When a generator of a heavily loaded electric power system reaches a reactive power limit, the system can become immediately unstable and a dynamic voltage collapse leading to blackout may follow. The statics and dynamics of this mechanism for voltage collapse are studied by example and by the generic theory of saddle node and transcritical bifurcations. It is shown that load power margin calculations can be misleading if the immediate instability phenomenon is neglected

Keywords

power system stability; blackout; change in stability; dynamic voltage collapse; generator reactive power limits; heavily loaded electric power system; immediate instability phenomenon; load power margin calculations; saddle node; transcritical bifurcations; voltage collapse precipitation; Bifurcation; Linear matrix inequalities; Power generation; Power system analysis computing; Power system dynamics; Power system measurements; Power system modeling; Power system stability; Reactive power; Voltage;

fLanguage

English

Journal_Title

Circuits and Systems I: Fundamental Theory and Applications, IEEE Transactions on

Publisher

ieee

ISSN

1057-7122

Type

jour

DOI

10.1109/81.250167

Filename

250167