State Estimation in the Power Distribution System

In the domain of power distribution network, software that can estimate the grid state using several measurement values as input has been rarely used in the low voltage grid. Such software tools are based on adaptive state estimation methods and their accuracy highly depends on the available input data. Especially, in the low voltage grid which is mostly not monitored at all, the increasing number of controllable high-power loads, such as electric vehicle charging stations or decentralized photovoltaics and battery storage systems, directs the focus to the actual grid state, in particular with regard to the power quality.