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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

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Applying series braking resistors to improve the stability of low inertia synchronous generators

Tumilty, R. and Bright, C.G. and Burt, G.M. and Anaya-Lara, Olimpo and McDonald, J.R. (2007) Applying series braking resistors to improve the stability of low inertia synchronous generators. In: CIRED 2007, 2007-05-21 - 2007-05-24.

CIRED2007_0045_paper.pdf - Final Published Version

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Widely held concerns over the environmental impact of emissions from large fossil fuelled generating plants are serving to promote the connection of renewable or sustainable generation onto distribution networks. Many such generators are synchronous machines with low values of inertia, and thus possess short critical clearance times to avoid the onset of transient instability. With fault clearance times of up to 1s occurring in distribution networks, there is the potential for a growing problem as distributed generation makes up a larger proportion of installed capacity. This paper proposes the use of series braking resistors that are switched into circuit at the generator terminals as a means of improving transient stability, and thus avoid, or at least defer major upgrades to distribution system protection