Pregled bibliografske jedinice broj: 548568
Finite elements analysis of rotor shorted turns
Finite elements analysis of rotor shorted turns // EPRI Turbine Generator Users Group Workshop : proceedings
Barcelona: Electric Power Research Institute (EPRI), 2011. str. 1-12 (predavanje, međunarodna recenzija, cjeloviti rad (in extenso), znanstveni)
CROSBI ID: 548568 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Finite elements analysis of rotor shorted turns
Autori
Sasic, M. ; Lloyd, B. ; Elez, Ante
Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni
Izvornik
EPRI Turbine Generator Users Group Workshop : proceedings
/ - Barcelona : Electric Power Research Institute (EPRI), 2011, 1-12
Skup
EPRI Turbine Generator Users Group Workshop
Mjesto i datum
Barcelona, Španjolska, 12.04.2011. - 14.04.2011
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
turbogenerator; magnetic field; diagnostic; inter-coil shor circuit; Finite elements method
Sažetak
On-line flux monitoring via permanently installed air gap flux probes is a proven technology, which has been used for many years in synchronous machines, to determine the presence of turnto- turn shorts in a rotor winding. This information is critical for planning maintenance and for vibration analysis. Traditionally, flux measurements have been performed using flux probes installed on a stator wedge connected to portable or permanently installed instruments. Traditionally, to achieve a reliable diagnostic, the signals from the flux probe has to be measured under different load conditions ranging from no load to full load. This requirement presents a serious obstacle when applying this method on base load units. Recently, a new design of flux probe installed on a stator tooth was implemented. Novel algorithms used to analyze measurements using either type of flux probe can help minimize the need for tests at different load conditions and still provide reliable diagnostics. Finite Element Models (FEM) have been created to verify these new algorithms in different loading conditions. This paper describes the new method and its advantages, comparing results obtained from on-line measurements on working generators and the Finite Element Model created to simulate different rotor conditions.
Izvorni jezik
Engleski
Znanstvena područja
Elektrotehnika
POVEZANOST RADA
Projekti:
008-0361616-1624 - Sustav motrenja sinkronih generatora (Car, Stjepan, MZOS ) ( CroRIS)
Ustanove:
KONČAR - Institut za elektrotehniku d.d.
Profili:
Ante Elez
(autor)