This paper presents a small signal impedance model and stability analysis used in investigations of rectifier system instabilities observed in several practical applications of high-power Medium Voltage (MV) Voltage Source Converters (VSCs) with Diode Front Ends (DFEs). These self-sustained instabilities, seen in vicinity of the 2nd harmonic frequency, have been extensively studied and linked to the rectifier transformer core saturation and negative resistance effect produced by the saturation related 2nd harmonic current injection.
No takes yet. Share an insight, caveat, or question.
Basic et al. (2021) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: