METHOD AND DEVICE FOR MANAGING THE ENERGY SUPPLIED BY A HYBRID POWER PLANT FOR A ROTORCRAFT

A method for managing the energy supplied by a hybrid power plant for propelling a rotorcraft, the hybrid power plant comprising two heat engines, two electric motors and an electrical energy source. The method includes a step of acquiring at least one first characteristic of the electrical energy source and/or the electric motors and a step of determining a mechanical power requirement of the rotorcraft. The method then includes a step of determining a first power distribution between each heat engine and electric motor as a function of the first characteristic and the mechanical power requirement of the rotorcraft, then a step of controlling each heat engine and electric motor according to several operating modes, including a distributed operating mode applying the first power distribution.