Invariance-based control for cyber-physical electrical distribution grids

Voltage control in low-voltage distribution grids gain importance due to integration of renewable energies and introduction of smart grids. However, the presence of disturbances and communication non-idealities make the problem hard to solve. In addition, lack of integration of converter-based devices caused non-controllability of the grid. In this paper, an updated invariance-based control approach is presented to address these shortcomings. The updated version of the invariance method addresses the non-controllability of the system. In addition, the control approach is discussed in a hybrid formalism in which the long update intervals of the communications are considered. Finally, results show the effectiveness of the approach.