Optimal reactive power flow in a HV grid connected to several distribution grids with predictive Volt Var Control

摘要

This paper proposes an optimal power flow to supervise several distribution networks connected to a transmission grid. MV (Medium Voltage)grids can support the voltages of the HV (High Voltage) network by controlling adequately the reactive power exchange at the HV/MV interface. The interaction between the distribution grids equipped with predictive Volt-Var Controllers (VVC) and the optimal coordination is investigated. From a case study involving a rural network, several recommendations are given to tune and combine these controllers.