Distributed voltage control coordination between renewable generation plants in MV distribution grids

Abstract

This study focuses on distributed voltage control coordination between renewable generation plants in medium-voltage distribution grids (DGs). A distributed offline coordination concept has been defined in a previous publication, leading to satisfactory voltage regulation in the DG. However, here, it is shown that reactive power provision increases the power losses in the grid to a significant extent. A real-time coordination concept is developed which utilises communication systems with online signal exchange between the assets. Performed case studies reveal that this coordination scheme reduces the power losses within the DG to a measurable extent.