Method for starting a turbine in a pump mode

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United States of America Patent

PATENT NO 11873789
APP PUB NO 20220389897A1
SERIAL NO

17772662

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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The invention concerns a method for starting a hydroelectric turbine (10) in a pumping mode, said turbine being provided with a runner (6) mechanically coupled to a shaft line (8) and a variable speed electric motor connected to a grid, a distributor (4) comprising guide vanes to control a flow of water to said runner, the method comprising:

    a) a step of operating the variable speed motor at least partly at fixed speed, said guide vanes being only partially opened, and of defining or calculating: data of a plurality of hydraulic characteristics (C1, C2, Ci) of the turbine for an operation without cavitation;data of an operation range of the electric motor, giving the speed of the motor as a function of its power; b) then a step of operating the turbine in a power control mode.

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Patent Owner(s)

Patent OwnerAddress
GE RENEWABLE TECHNOLOGIES82 AVENUE LÉON BLUM GRENOBLE 38100

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Martinez, Lionel Vaulnaveys-le-Bas, FR 12 70
Ruiz, Sébastien Grenoble, FR 7 1

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