European experiences with an intelligent substation intended for smart distribution networks

It is expected that the power flow in low-voltage (LV) and medium-voltage (MV) distribution grids will start to fluctuate significantly in the near future due to the increasing penetration of dispersed generation within LV grids together with the global rise in energy demand (due to rising population and major electrification, for example). To manage these fluctuations while maintaining, or even improving, power quality and reliability, an intelligent substation has been developed by a Dutch consortium. A full-scale prototype of this substation has been assembled and its functionality validated by performing both laboratory and field trial testing. This paper highlights the most promising results of the laboratory tests, as well as from the field trial and the experience gained from the testing thus far.