Experimental Validation of a Rule-Based Voltage Regulation Algorithm for MV Grids

Scope of this paper is to experimentally validate a rule-based control scheme for the voltage regulation of radial medium-voltage (MV) distribution grids with high penetration of distributed renewable energy sources (DRESs). The examined control scheme uses the available reactive power of DRESs to tackle possible voltage violations, while ensuring near-minimum active power losses. This is attained by adopting a time delay allocation method to prioritize the reactive power response of DRESs. This control algorithm is applied to a scaled-down version of the CIGRE European benchmark MV grid to experimentally assess its performance in terms of voltage regulation and optimal network operation.