UPGRADING LOW-VOLTAGE NETWORK MODELS FOR POWER QUALITY INVESTIGATIONS WITH A FOCUS ON VOLTAGE UNBALANCE

An increasing number of high-power devices in low-voltage distribution grids, such as electric vehicles, can cause a significant decrease in power quality. For simulative investigations of the impact of future network usage, valid simulation models of low-voltage networks are necessary. A network model generator has been used to create such network models. Those models have been extended by zero-sequence parameters to allow the simulation of unbalanced load situations. The models have been validated by building the model of a field test network and by using measurement data obtained in field measurements. A final comparison with well-established SimBench networks provides further plausibility.