Using smart distribution transformers to reduce both industrial energy consumption and peak demand by means of a CVR strategy

Abstract

Conservation Voltage Reduction (CVR) is a known technique that increases the capacity of the network by reducing the power peak demand (peak shaving) and contributes to energy saving. Most of the studies published in this field are focused on the application of CVR in domestic networks or mixed consumers (domestic + industrial). This research analyses a real case where a distribution smart transformer is exclusively feeding industrial loads with a reactive power compensation device operating on the low voltage side. A test programme has been carried out to assess the implementation of a CVR strategy.Research findings indicate that the behaviour of the loads is suitable for the implementation of CVR. Test results also show that the performance of the reactive compensation system is compatible with a CVR strategy making possible the implementation of a combined solution that provides the benefits of both techniques.