VERFAHREN ZUR NATUERLICHEN, NETZ- ODER VERBRAUCHERGEFUEHRTEN KOMMUTIERUNG.

摘要

A converter (DU) is controlled between an M-phase supply of frequency F and an m-phase load of frequency f and pref. includes a rotating machine. The converter has 2.M.m thyristors. The supply period 1/F and the load period 1/F are divided into equal length intervals or J and j in sync. with the voltage between the first two phases of the supply and load. There are 2.M and 2.m intervals respectively. The overlapping phase between two intervals causes a thyristor pair, which simultaneously can carry current from one supply phase X to a load phase y and from the load phase x to a supply phase Y, to be released.