Electrical power converter device has filter unit and voltage reference calculation unit to calculate voltage reference corresponding to output voltage

摘要

The electrical power converter device has a filter unit and voltage reference calculation unit to evaluate a voltage reference corresponding to the output voltage . The power converter device has an AC filter for the suppression of a harmonic current. This includes a combination of at least one choke, one condenser and a resistance. There is a power converter circuit which converts AC power into DC power, or DC power into AC power. The converter is connected from an AC supply via the AC filter. There is also a voltage reference calculation unit which evaluates and outputs a voltage reference corresponding to the voltage to be output by the power converter. A current detection unit is set to detect a current flowing between the AC supply and the power converter circuit. A voltage reference correction unit is also provided.