A THREE-PHASE FOUR-WIRE STATE ESTIMATOR ALGORITHM FOR LOW VOLTAGE NETWORKS MANAGEMENT

Abstract

The low voltage networks management plays even more a key role for distribution system operators due to the fast development of the distributed energy resources. European low voltage networks have particularities (four-wire, unbalance, small network at electric grid extremities) which should be considered when a state estimator is created. This paper presents a three-phase four-wire state estimator algorithm. To analyse the performance of this algorithm, we consider a LV test network.