Time domain modelling of commutation spikes in synchronous generators supplying rectifiers using EMTDC

A. Kunakorn, J. Hiley, K. S. Smith

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This paper presents an EMTDC simulation of commutation spikes in a synchronous generator voltage waveform when supplying rectifier loads. The effect of the thyristor snubber circuit on the spikes is investigated. In the simulation, an artificial value of the snubber resistance is required to give a more accurate decay time for the spike oscillation without losing the fundamental frequency characteristics of the voltage waveforms. The results obtained from two rectifiers with different snubber circuits are presented. The analysis in this paper should assist all those trying to simulate switching transients in lightly damped RLC circuits using time stepping techniques.

Original languageEnglish
Title of host publicationProceedings of the 1999 34th Universities Power Engineering Conference
Pages5-8
Number of pages4
Volume1
Publication statusPublished - 1999
Event34th Universities Power Engineering Conference - Leicester, UK
Duration: 14 Sep 199916 Sep 1999

Conference

Conference34th Universities Power Engineering Conference
Abbreviated titleUPEC '99
CityLeicester, UK
Period14/09/9916/09/99

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  • Cite this

    Kunakorn, A., Hiley, J., & Smith, K. S. (1999). Time domain modelling of commutation spikes in synchronous generators supplying rectifiers using EMTDC. In Proceedings of the 1999 34th Universities Power Engineering Conference (Vol. 1, pp. 5-8)