Method and apparatus for optimizing the operating parameters of a double-regulated water turbine
AssigneeSulzer-Escher Wyss GmbH
InventorJosef Erlach
Life of this patent
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Abstract
In a water turbine having a distributor with adjustable guide vanes and a runner having adjustable runner blades, optimization of the operating parameters is performed indirectly in that fluctuations in intensity of the generator output or the bearing oscillations of the water turbine are determined without taking account of the absolute values and are set or adjusted to a minimum.
Claims18
A method for optimizing the operating parameters of a water turbine coupled to an electrical generator, said water turbine comprising a distributor having adjustable guide vanes and a runner having adjustable runner blades, the position of the guide vanes of the distributor varying in accordance with each given position of the runner blades of the runner, said method comprising:
- determining the intensity of fluctuations over time of a measured value determined during operation of the water turbine, within a given frequency range, said measured value being a function of the position of the guide vanes;
- and
- setting the guide vanes to a position in which the fluctuations in intensity of said measured value, within said given frequency range, are at a minimum.
An apparatus for optimizing the operating parameters of a water turbine coupled to an electrical generator, said water turbine comprising a distributor having adjustable guide vanes and a runner having adjustable runner blades, the position of the guide vanes of the distributor varying in accordance with each given position of the runner blades of the runner, said apparatus comprising:
- means for determining the intensity of fluctuations over time of a measured value determined during operation of the water turbine, within a given frequency range, said measured value being dependent upon the position of the guide vanes;
- and
- means for setting the guide vanes to a position in which the fluctuations in intensity of said measured value, within said given frequency range, are at a minimum.
Dependencies are inferred from the claim text.