Method for managing operation of an electrical power supply system of an aircraft comprising at least one electrical energy storage set

A method for managing operation of an aircraft system comprising at least one electrical energy storage set (ESD) to be supplied with DC current connected to a DC current power supply bus (DC_BUS), at least one electrical machine (EM) supplying AC current by mechanical draw on a drive system connected to a current generation control unit (GCU), a bidirectional converter (PEM) configured to convert DC voltage into AC voltage, and a control module (CM) for the converter (PEM), the management method generating a command (CMD) for the converter (PEM) from the angular position (θ) of the electrical machine (EM), from the intensity (I_m) of the electrical current delivered by the electrical machine (EM), and from the output electrical voltage (Vs) of the converter (PEM), the elements of the system being connected by electrical connections,

• the generation of the command (CMD) for the converter (PEM) comprises the following steps:
• breakdown of the electrical intensity (I_m) of the electrical current delivered by the electrical machine (EM), into an active intensity (Ia_m) of the electrical machine (ME) and a reactive intensity (Ir_m) of the electrical machine (ME);
• limitation of the active intensity (Ia_m) and of the reactive intensity (Ir_m) such that the corresponding intensity (I_m) of the electrical current delivered by the electrical machine (EM) is lower than a threshold (I_max), by generation of a limitation setpoint (Ia_lim) of the active intensity (Ia_m) and of a limitation setpoint (Ir_lim) of the reactive intensity (Ir_m);
• management of rapid variation of the intensity (I_m) of the electrical current delivered by the electrical machine (EM), corresponding to variations of which the time constant is greater than the time constant of a transfer function of high-pass type, by generation of a variation setpoint (Ia_réseau) of the active intensity (Ia_m) and of a variation setpoint reseau) of the reactive intensity (Ir_m);
• generation of a reactive intensity (Ir_m) setpoint (Ir_ref) by the summation of the limitation setpoint (Ir_lim) of the reactive intensity and of the variation setpoint (Ir_réseau) of the reactive intensity;
• generation of an active intensity (Ia_m) setpoint (Ia_ref) by the summation of the limitation setpoint (Ia_lim) of the active intensity and of the variation setpoint (Ia_réseau) of the active intensity;
• and
• generation of a command for the converter (PEM) from the active intensity setpoint (Ia_ref), from the reactive intensity setpoint (Ir_ref), from the angular position (θ) of the electrical machine (EM), and from the output electrical voltage of the converter (PEM).