In recent years, the concept of a microgrid cluster has gained popularity and importance, due to increasing need off a complex, secure and efficient electrical network. These increase in complexity demands control strategies in real time, to ensure the proper functioning of the electrical system. In this research a new communication system is proposed for power sharing in a microgrid cluster. To this, two modulation technologies are used on OFDM and the results compared. The communications channel has been designed according to the characteristics of dispersion, attenuation and noise, which are found on the applied environment. The study is accomplished from a simulation model implemented in MATLAB, and it has been and it was possible to verify the correct performance of the converters when the reference is sent by the communications system, achieving an error below 1%.