  A new "model-free" control methodology is applied for the first time to power
systems included in microgrids networks. We evaluate its performances regarding
output load and supply variations in different working configuration of the
microgrid. Our approach, which utilizes "intelligent" PI controllers, does not
require any converter or microgrid model identification while ensuring the
stability and the robustness of the controlled system. Simulations results show
that with a simple control structure, the proposed control method is almost
insensitive to fluctuations and large load variations.
