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About the session
New, intelligent infrastructure should enable the network operator in the future to control flexible loads, such as electrical storage heaters, with the help of timetables in a beneficial for the distribution network. This should replace the previously used ripple control technology. Depending on e.g. consumer type and location, a variety of different schedules must be generated by the distribution network operator. Therefore, the approach of this research project was to implement the basic logic for generating the timetables not centrally with the distribution system operator, but in a control box on site. Especially in rural distribution networks, which are strongly influenced by PV infeed, it would be possible to adapt the green periodes to the current, local network status. In the case of strong PV feed-in, the release times would be shifted to the daytime hours, with low PV feed-in probably into the nighttime hours. The green periodes are generated exclusively based on local voltage measurement data and stored values of the last few days. Five prototypes with integrated voltage measurement, data processor for local timetable generation and control outputs were set up, installed in private households and operated for several months. During the field trial, the implemented scheduling algorithm was continuously improved.
