Patent ID: 7551461

Claim:
A method to obtain ideally zero distortion in currents I A , I B and I C that feeds a system characterized by a transformer connected downstream with a thyristor-based AC/DC rectifier, comprising: modifying with due precision a shape of the direct current circulating through each of the two bridges of the thyristor-based AC/DC rectifier, wherein the modifying comprises: defining the shape of the direct current through each bridge; determining a period of the direct current through each bridge; defining a frequency of the direct current through each bridge; determining a magnitude of the direct current through each bridge; and defining a synchronization of the direct current through each bridge with respect to the system, wherein the shape of the direct current through each bridge is semi-triangular with: a) two symmetrical curved sides, b) both sides belonging to a positive semi-period of a sinusoidal waveform, and c) both sides adjacent to zero-crossings of the sinusoidal waveform.