SUBSYNCHRONOUS RESONANCE OF THE KOEBERG TURBOGENERATORS AND OF A LABORATORY MICRO-ALTERNATOR SYSTEM.

D. J.N. Limebeer, R. G. Harley, S. M. Schuck

Research output: Contribution to journalArticlepeer-review

33 Citations (Scopus)

Abstract

Results are presented of an investigation into the subsynchronous resonance (SSR) behavior of the 1,072 MVA nuclear powered turbo-generators to be installed at Koeberg Power Station. A mathematical model describing the dynamics of the shaft system, the synchronous generator and the transmission network is presented. An eigenvalue analysis of a linearized model and the Fourier transformation of some of the time domain waveforms provide insight into the physical mechanism of SSR. The mathematical model is checked by measurements on a laboratory micro-alternator and transmission line simulator system. The results show that unless precautionary steps are taken, unstable subsynchronous oscillations could occur at Koeberg.

Original languageEnglish
Pages (from-to)278-297
Number of pages20
JournalTransactions of the South African Institute of Electrical Engineers
Volume70
Issue numberpt 11
Publication statusPublished - 1979

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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