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Title: Three-phase unidirectional transformerless hybrid rectifier with boost converter
Authors: Gonçalves, José
Valtchev, Stanimir
Melício, Rui
Al-Saadi, Mohammed
Keywords: Hybrid Rectifier
Coupled Inductor
Boost Converter
Power Factor
Total Harmonic Distortion
Issue Date: 2019
Publisher: IEEE Global Power, Energy and Communication Conference — GPECOM2019
Abstract: In this paper, a three-phase hybrid rectifier is proposed, employing a boost converter without the addition of isolation transformer and output voltage control. This topology is usually considered to be not viable due to the current interactions. In order to mitigate those interactions, the boost inductor is replaced by a magnetically coupled inductor. The coupled inductor forces the balance between the two interconnected windings, placed at the positive and negative poles, and thus eliminating the current interactions. The results show that the proposed three-phase rectifier does not undergo a current interaction and functions as a hybrid rectifier. Furthermore, it was noted that the proposed rectifier at 20 kW presents an elevated power factor and a low total harmonic distortion.
Type: lecture
Appears in Collections:FIS - Comunicações - Em Congressos Científicos Internacionais

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