Steered three-phase direct current static converter operating method, involves changing control state of portion of respective half cycle with respect to alteration of rejection level of converter for each input phase

摘要

The method involves producing three alternating voltage phases from a direct current (DC) static converter by an inverter (1) with three half bridges (10, 12, 14). The half bridges are addressed with a respective periodical control signal to provide a desired rejection level, which changes between two control states. The control state of a portion of a respective half cycle is changed with respect to an alteration of the rejection level of the converter for each input phase within the respective half cycle. An independent claim is also included for an arrangement for use with an electric circuit.