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US 12,180,923 B2Granted
Method for starting a turbine in a pump mode
AssigneeGE Renewable Technologies
InventorsSébastien Ruiz, Lionel Martinez
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AssigneeGE Renewable Technologies
InventorsSébastien Ruiz, Lionel Martinez
Estimating the term…
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.
A method for starting a hydroelectric turbine in a pumping mode, said turbine being provided with a runner mechanically coupled to a shaft line and a variable speed electric motor connected to a grid, a distributor comprising guide vanes to control a flow of water to said runner, the method comprising:
A hydroelectric turbine, comprising:
Dependencies are inferred from the claim text.