Operating method and system for voltage drop compensation

The method involves driving an inverter (4) with control signals formed from a reference feed voltage (Uein, ref) to produces a feed voltage for one of the phases (R,S,T) of an a.c. network. The sum of the feed voltage and a network voltage (UN) corresponds to a phase voltage on one phase. The reference feed voltage is formed from a first phase angle (beta) between the feed and network voltages and a reference feed voltage amplitude value. AN Independent claim is also included for the following: an arrangement for implementing the method.