Abstract: A method for controlling power supplied to an electrical network having a rated frequency, by an electrical production set with a hydroelectric plant and a battery energy storage system, includes determining, from a model of the hydroelectric plant, a theoretical power of stabilization of the frequency of the electrical network by the hydroelectric plant, the theoretical stabilization power being relative to a production of the hydroelectric plant alone for the stabilization of the frequency of the electrical network, when setpoints for production members of the hydroelectric plant are implemented.

Abstract: A method for controlling a power supplied to an electrical network having a rated frequency, by an electrical production set comprising an electrical production plant and a battery energy storage system, comprises acquisition, by a hybridization controller, of a first signal representative of the power to be supplied to the electrical network; production, by the hybridization controller, of a power setpoint for the battery energy storage system; production, by the hybridization controller, of a substitution signal representative of the power to be supplied by the electrical production plant alone; and acquisition, by a plant controller comprising an input for acquisition of a signal representative of the power to be supplied by the electrical production plant, of said substitution signal.