Nonlinear Control for Isolated DC MicroGrids

The access to electricity for isolated communities is capital for improving life in thosesocieties. The use of renewable energy sources (renewables) and energy storage systems is the keyfor clean energy supply in remote areas without the main grid. The standalone operation of renewablesrepresents a challenge for operation and reliability, therefore the DC MicroGrid concept is seenas a powerful solution allowing renewables integration and reliable operation of the system is simpleway. This paper proposes a distributed nonlinear control strategy for an isolated MicroGrid composedof renewables and different time-scale storage systems to supply a DC load. The simulations resultsshow the behavior of the proposed MicroGrid and a comparison with classical linear control is doneto highlight the control performance.