Symmetrization of asymmetrical three-phase load supplied from asymmetrical non-ideal voltage source with periodic nonsinusoidal waveforms

The problems presented in the paper deal with a three-phase four-wire system. The considered system is composed of the three-phase asymmetrical voltage source with periodical nonsinusoidal waveforms, inner impedances of the voltage source and asymmetrical linear three-phase loads. In contrast to earlier approaches the voltage source is not symmetrical. In the paper a method of symmetrization of these systems has been proposed. After symmetrization it is possible to obtain symmetrical line currents of the system.