METHOD FOR COUPLING A HYDROELECTRIC POWER PLANT TO THE GRID COMPRISING AT LEAST TWO HYDROELECTRIC UNITS

The invention concerns a method for coupling a hydroelectric power plant in a turbine mode to a grid, in order to generate power for a grid, said hydroelectric power plant comprising at least a first hydroelectric unit () and a second hydroelectric unit (), each provided with a runner () mechanically coupled to a shaft line () and to a generator, a distributor () comprising guide vanes to control a flow of water to said runner, said hydroelectric power plant further comprising a variable frequency drive (), the method comprising: