A process for converting a DC voltage into a three-phase AC voltage

The invention relates to a process for converting a generated by a distributed power supply system DC voltage into a three-phase AC voltage using a plurality of single-phase inverters (WR1-WR3), wherein the AC voltage is provided for feeding power to an electric power supply network, to the use of single-phase inverters unacceptable unbalanced loads avoid. This is achieved that in case of failure of an inverter (WR1-WR3) is reduced an asymmetric power distribution of the power supply by the power of the other inverter is limited. The method enables a simplification of the three-phase voltage monitoring.