Deliverable 1.1 Literature review and initial modelling

This report corresponds to Deliverable 1.1 “Literature review and initial modelling” part of the Work Package 1 “On-load tap changing LV transformers” of the project “Active Management of LV Networks” jointly funded by EDF and EPSRC. The Active Management of LV Networks project has been established in order to investigate the effect of applying active management techniques to increase the ability of low voltage networks to accommodate a higher number of low carbon technologies, in particular photovoltaic (PV) systems and electric vehicles (EV). The project will focus on the utilization of on-load tap changing transformers and coordinated control of low carbon technologies themselves and other technologies to control voltages and congestion in the network. This document presents the initial modelling aspects of LV networks, including the on-load tap changer (OLTC), as well as load and PV profiles. In addition, a control logic for the OLTC is proposed and its performance assessed considering different PV penetrations and also different monitoring approaches. These models provide a solid foundation for the LV network simulations to be carried out throughout the project as well as the further development of control logic. Some parameters which are UK specific will be adjusted to the French standards when appropriate