Three-Phase Rectifier Applying Active Current Injection

Abstract

A new active current injection network for a three phase rectifier is proposed. The proposed network uses three bidirectional switches operating at low frequency and an half bridge inverter operating a high frequency, also an inductor is used to make the current injection. The operation, simulation and experimental results are presented.

Three‐phase rectifiers with suboptimal current injection and improved efficiency

“…In previous publications, results reported in [18] contain spikes in phase currents, which likely is a consequence of the described phenomena. However, in [8, 17], spikes in phase currents are not present, which might be caused by low leakage inductance of the supply lines.…”

“…In [8], SCID is used for high‐power rectifier, together with CIN based on bidirectional multi‐level cell. Similar realisation based on both CID and CIN in switched mode is presented in [18, 19]. Significant difference in performance presented in [18, 19] is in part a consequence of a different control of the SCID switches, which is discussed in Section 4.…”

“…Similar replacement of MCID with SCID in a thyristor rectifier is presented in [17]. Some hybrid solutions for lowering the input current THD use SCID as well [8, 18, 19]. In [8], SCID is used for high‐power rectifier, together with CIN based on bidirectional multi‐level cell.…”