Optimal Location of Measurement Devices in Active Distribution Networks

This paper proposes an optimization algorithm suitable to choose the optimal number and position of the measurement devices in active distribution networks. In active distribution networks distributed energy resources may be controlled and the topology modified to optimize power flows and to solve critical contingencies. The proposed algorithm, based on the techniques of the dynamic programming, has the goal to guarantee at the same time, for all the considered topology configurations, the minimum cost and the accuracy required to the measured data needed to operate management and control issues. Both the uncertainty introduced by the measurement devices and the tolerance in the knowledge of the network parameters are taken into account. Random changes of the loads are considered to establish adequate reference conditions. Tests relevant to a small system in several possible configurations are presented to show the validity of the proposed approach.