Method for operating a hydraulic machine and corresponding installation for converting hydraulic energy into electrical energy
OwnerQuentin Alloin, Theophane Foggia +1inventors
InventorsQuentin Alloin, Theophane Foggia, Renaud Guillaume
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Abstract
This installation for converting a hydraulic energy into electrical energy comprises a hydraulic adapted to be operated either in a pump mode or in a turbine mode. It further comprises means (25) for applying an electric torque to the rotor to control the rotation speed of the machine during transitions between the pump mode and the turbine mode.
Claims17
A method of operating a hydraulic machine for controlling a transition between a pump mode wherein the hydraulic machine is rotated in a first direction and a turbine mode wherein the hydraulic machine is rotated in an opposite direction, the method comprising applying a hydraulic torque and an electric torque to the hydraulic machine during the transition to apply a braking force for reversing direction of the hydraulic machine from the first direction to the opposite direction and control a rotation speed of the hydraulic machine during the transition to bring the rotation speed in the opposite direction to a speed for connecting the hydraulic machine to an electrical grid.
An installation for converting hydraulic energy into electrical energy, comprising:
- a hydraulic machine configured for operation either in a pump mode wherein the hydraulic machine is rotated in a first direction or in a turbine mode wherein the hydraulic machine is rotated in an opposite direction;
- and means for applying an electric torque and a hydraulic torque to a rotor of the hydraulic machine to apply a braking force for reversing direction of the hydraulic machine from the first direction to the opposite direction and control a rotation speed of the hydraulic machine during transitions between the pump mode and the turbine mode to bring the rotation speed in the opposite direction up to a speed for connecting the hydraulic machine to an electrical grid.
An installation for converting a hydraulic energy into electrical energy, comprising a hydraulic machine, configured for operation either in a pump mode wherein the hydraulic machine is rotated in a first direction or in a turbine mode wherein the hydraulic machine is rotated in an opposite direction, means for applying an electric torque to the rotor to control the rotation speed of the machine during transitions from the pump mode to the turbine mode, the means for applying an electric torque to the rotor comprising a control loop feedback system comprising a control loop having an electric power source and a controller for controlling the electric torque applied to the hydraulic machine.
Dependencies are inferred from the claim text.