1. Taking account of source imperfections

1.1 General

The article has been used to synthesize the main thyristor switch structures. The method used consists in modeling the input and output electrical networks by perfect current and voltage sources:

• On the AC side, the converter sees a perfect sinusoidal AC voltage source, either single-phase or three-phase;

• on the DC side, the converter sees a perfect DC source, reversible in voltage and unidirectional in current.

The second stage in the study of converters, which falls within the remit of analysis, involves the search for models for both networks that better correspond to reality, highlighting the operating peculiarities linked to the nature...