The comparison and analysis for loss of excitation protection schemes in generator protection
2012 (English)In: Developments in Power Systems Protection, 2012. DPSP 2012. 11th International Conference on, 2012, no 593 CP, 1-6 p.Conference paper (Refereed)
Loss-Of-Excitation (LOE) condition of a generator may cause severe damages on both generator and the interconnected systems. This paper analyses the behaviours of different LOE protection schemes, such as R-X, G-B, P-Q and U-I schemes, for a hydro generator, which is connected to an infinite bus. Based on the simulation results, the reliability and stability of existing LOE protection schemes are compared and a preferred scheme is selected. An improvement to the scheme is also proposed to prevent the LOE relay incorrect operation during external faults, such as short-circuit faults on busbar or transmission lines.
Place, publisher, year, edition, pages
2012. no 593 CP, 1-6 p.
, IET Conference Publications, 2012
comparison and solutions, Generator Protection, Loss of excitation protection schemes
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-117335DOI: 10.1049/cp.2012.0071ScopusID: 2-s2.0-84863651268ISBN: 978-184919620-8OAI: oai:DiVA.org:kth-117335DiVA: diva2:601686
11th IET International Conference on Developments in Power Systems Protection, DPSP 2012, 23 April 2012 through 26 April 2012, Birmingham
QC 201301302013-01-302013-01-302013-09-16Bibliographically approved