Distributed generators (DGs) that are rated between several kVA and 250 kVA in size are increasingly being connected at the 400 V electrical distribution level. Therefore, new requirements for the traditional network protection schemes and the co-ordination between network protection and intertie protection are needed. Actual problems have been experienced relating to DG transient behaviour, thereby, more accurate analysis is required. This paper presents studies using a real time simulation platform to investigate the transient behaviour of the distributed generators' protection under external disturbances. Furthermore, an optimized DG protection setting for keeping most of the DG stable under such disturbances is proposed.
Y. Lei, R. M. Tumilty, G. M.Burt and J.r.mcdonald, "Performance of Induction Generator Protection During Distribution Network Disturbances," 2008 IET 9th International Conference on Developments in Power System Protection (DPSP 2008), Glasgow, 2008, pp. 529-534, doi: 10.1049/cp:20080093.
KEYWORDS: Distributed Generation, power system relay, Optimization