Power Converter with a Galvanic Isolation and an Increased Efficiency

Inhalt:
The power converter for the SI310 FN4 test-bench is considered. It converts three-phase AC into six-phase AC with galvanic isolation. For such a converter, the parameters of a parallel twelfth-pulse rectifier with an input interphase and without an interphase transformer have been studied which less power losses. Expressions for the selection of diodes have been obtained. The total harmonic distortion of the input current is studied. The test results of the developed converter are presented. This article allows developers of power converters to make the right choice of the type of twelfth-pulse rectifier, and then select the type of diode.