Abstract:
The rising share of distributed energy sources and the application of voltage control strategies lead to a significantly change in reactive power demand of distribution g...Show MoreMetadata
Abstract:
The rising share of distributed energy sources and the application of voltage control strategies lead to a significantly change in reactive power demand of distribution grids. High voltage grid operators need to adequately estimate this change in reactive power demand for effective reactive power planning and securing voltage control. For modelling this demand, the often limited information on exact parameters of the underlying medium and low voltage grids presents a significant challenge for high voltage grid operators. In this paper, we therefore present a simplified approach for reactive power modelling based on functional correlations between the reactive power demand and aggregated grid parameters. We identify these correlations based on simulations on a generic distribution grid model applied to structurally different grid regions in Germany. The results indicate, that even though the simplified reactive power demand model applies significant simplifications, the reactive power flow between high and medium voltage grid can be estimated with reasonable accuracy in most situations.
Date of Conference: 21-25 October 2018
Date Added to IEEE Xplore: 13 December 2018
ISBN Information: