HYDRAULIC TRANSIENT CONTROL OF REFURBISHED FRANCIS TURBINE HYDROPOWER SCHEMES IN SLOVENIA
Abstract
This paper presents hydraulic transient control methods of refurbished Francis turbine hydropower schemes in Slovenia. Transient control strategies are presented, including the alteration of operational manoeuvres, transient control devices, suitable water conveyance system layout and operational limits. Computational models and modern hydraulic transient control approaches are also outlined. The paper concludes with the practical implementation of two case studies: the refurbish ment of Moste HPP and Doblar 1 HPP. Both hydropower plants are equipped with Francis turbine units and underwent refurbishment in 2010 to 2013, respectively.
Downloads
References
M.H. Chaudhry: Applied Hydraulic Transients, Springer, 2014
HydraTek: Hydraulic Transient Analysis FAQ, HydraTek, 2009
A. Bergant, B. Karney, S. Pejović, J. Mazij: Treatise on water hammer in hydropowerstandards and guidelines, IOP Conference Series: Earth and Environmental Science, Vol. 22, p.p. 611 – 622, 2014
A. Bergant, E. Sijamhodžić: Water hammer problems related to refurbishment and upgrading of hydraulic machinery, Proceedings of the Conference Hydropower in the Next Century, Portorož, pp. 611 – 622, 1997
ASME: The Guide to Hydropower Mechanical Design, HCI Publications, 1996
S. Pejović, A.P. Boldy, D. Obradović: Guidelines to Hydraulic Transient Analysis, Gower Technical Press, Brookfield, 1987
E.B. Wylie, V.L: Streeter: Fluid Transients in Systems, Prentice Hall, Englewood Cliffs, 1993
A. Zobeiri, C. Nicolet, E. Vuadens: Risk analysis of the transient phenomena in a hydropower plant installation, Hydro 2011, Prague, Paper 24.04, 2011
EPFL: Computer package SIMSEN, Lausanne, 2009
C. Jaeger: Fluid Transients in Hydro‐electric Engineering Practice, Blackie, Glasgow, 1997
C. Nicolet: Hydroacoustic Modelling and Numerical Simulation of Unsteady Operation of Hydroelectric Systems, EPFL, Lausanne, 2007
A. Bergant, A. Anderson, C. Nicolet, U. Karadžić, J. Mazij: Issues related to fluid transients in refurbished and upgraded hydropower schemes, Proceedings of the 11 th International Conference on Pressure Surges, BHR Group, Edinburgh, pp. 15 – 25, 2012
J. Mazij, A. Bergant, U. Karadžić: Critical parameters of hydraulic transient regimes in hydropower plants with complex water conveyence systems, CIGRE Crna Gora, Igalo, Paper B3‐06, 2015
J. Mazij, A. Bergant, J. Gale: Water hammer related to refurbishment of hydropower plants with complex water conveyence systems, Hydro 2011, Prague, Paper 06.19, 2011