000104111 001__ 104111
000104111 005__ 20190812205058.0
000104111 037__ $$aCONF
000104111 245__ $$aOverload Surge Event in a Pumped-Storage Power Plant
000104111 269__ $$a2006
000104111 260__ $$bInternational Association For Hydraulic Research$$c2006
000104111 300__ $$a14
000104111 336__ $$aConference Papers
000104111 490__ $$aVibration, noise, and pressure surge$$vF135
000104111 520__ $$aAt full load, pump-turbines operating in generating mode may experience a cylindrical cavitation vortex rope caused by the swirling flow in the draft tube cone. Under certain conditions, this vortex rope initiates both pressure and power oscillations. The hydro-acoustic analysis of a pumped storage plant experiencing such pressure and power oscillation is presented to illustrate the self induced oscillation nature of the observed event. The main physical parameters of the system stability are first introduced using a simplified 1D mathematical model of the full-load vortex rope. Then, a modal analysis of the full hydraulic circuit is performed to determine the stability domain of the plant as a function of the vortex rope parameters. Finally, a full hydro-acoustic SIMSEN model of the plant, validated with existing experimental data, is used to simulate the time sequence of the pressure surge event, and the cause of this pressure surge event is clearly identified.
000104111 542__ $$fCC BY
000104111 6531_ $$apump-turbine
000104111 6531_ $$astability analysis
000104111 6531_ $$afull-load surge
000104111 6531_ $$atransient
000104111 700__ $$aKOUTNIK, Jiri
000104111 700__ $$aNICOLET, Christophe
000104111 700__ $$aSCHOHL, Gerald A.
000104111 700__ $$g104417$$aAVELLAN, François$$0241012
000104111 7112_ $$dOctober 18 - 21$$cYokohama, Japan$$a23rd IAHR Symposium on Hydraulic Machinery and Systems
000104111 7112_ $$d October 17- 21, 2006$$cYokohama, Japan$$a23rd IAHR Symposium on Hydraulic Machinery and Systems
000104111 773__ $$tProceedings of the 23rd IAHR Symposium on Hydraulic Machinery and Systems, Yokohama, Japan$$q1-14$$j1
000104111 8564_ $$zn/a$$uhttps://infoscience.epfl.ch/record/104111/files/AIRH_06_Koutnik_Nicolet_Schohl_Avellan_15.doc$$s2304512
000104111 8564_ $$uhttps://infoscience.epfl.ch/record/104111/files/Overload%20Surge%20Event%20in%20a%20Pumped-Storage%20Power%20Plant.pdf$$s659495
000104111 8564_ $$xpdfa$$uhttps://infoscience.epfl.ch/record/104111/files/Overload%20Surge%20Event%20in%20a%20Pumped-Storage%20Power%20Plant.pdf?subformat=pdfa$$s1909811
000104111 8560_ $$femilie.reynaud@epfl.ch
000104111 909C0 $$xU10309$$pLMH$$0252135
000104111 909CO $$ooai:infoscience.epfl.ch:104111$$qGLOBAL_SET$$pconf$$pSTI
000104111 937__ $$aLMH-CONF-2007-007
000104111 973__ $$rREVIEWED$$aEPFL
000104111 980__ $$aCONF