Influence of the Neutral Grounding Mode on the Reliability of Actively Adaptive Electric Grids

The paper studies the influence of the grounding mode of the neutral on the reliability of active-adaptive medium voltage distribution networks. The selection of an appropriate type of reliability for evaluation is justified, with the aim of achieving comparability of the results for different grounding modes of the neutrals. A simplified approach for assessing structural reliability and a methodology for determining the parameters of operational reliability are presented. The results from the performed calculations for the different modes of neutral grounding are compared and conclusions are drawn about the ways of improving the reliability of the actively adaptive electric grids.