Subsynchronous resonance of a power station with two identical generating units

Author

Jennings, G.D. ; Harley, R.G. ; Levy, D.C.

Author_Institution

University of Natal, Department of Electrical Engineering, Durban, South Africa

Volume

133

Issue

1

fYear

1986

fDate

1/1/1986 12:00:00 AM

Firstpage

33

Lastpage

43

Abstract

The paper investigates the effect of adding a second 1072 MVA turbogenerator to an existing one in a power station feeding a series capacitor compensated transmission line. In carrying out the investigation, the new two-generator system is modelled as one equivalent generator with increased capacity, and also as a multimachine system with two separate generators. A comparison of these models shows that, for this type of stability study and this transmission system configuration, there is no advantage gained in modelling the two generators separately rather than as one equivalent generator. The results further show that conditions can exist where the system is stable with one generator but unstable with two, and vice versa.

Keywords

power stations; power transmission lines; resonance; turbogenerators; 1072 MVA turbogenerator; 1400 km transmission line; power station; series capacitor compensated transmission line; stability;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings C

Publisher

iet

ISSN

0143-7046

Type

jour

DOI

10.1049/ip-c.1986.0006

Filename

4646710