Open AccessOperation method for input‐series‐output‐parallel AC–DC–DC converter
Author(s) -
Song Chunwei,
Guo Yonghong,
Zeng Zheng,
Sun Lihong,
He Jinlong,
Li Mei
Publication year - 2016
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2015.0592
Subject(s) - rectifier (neural networks) , forward converter , voltage , control theory (sociology) , flyback converter , computer science , direct current , power (physics) , series (stratigraphy) , distortion (music) , power factor , electronic engineering , topology (electrical circuits) , boost converter , electrical engineering , engineering , physics , control (management) , paleontology , stochastic neural network , quantum mechanics , machine learning , artificial intelligence , recurrent neural network , artificial neural network , biology , amplifier , cmos
In this study, the proposed configuration of input‐series‐output‐parallel (ISOP) AC–DC–DC converter consists of a cascaded H‐bridge (CHB) rectifier in the AC/DC stage and a parallel DC–DC converter in the DC/DC stage. This study reveals the relationship between input voltage sharing (IVS) and output current sharing (OCS) among the constituent modules. The factors causing DC‐link voltage unbalance among series units in CHB rectifier are studied in detail. With the proposed operation method, the power balance including IVS, DC‐link voltage balance and OCS can be achieved. In addition, the converter can always operate under a unity power factor with low‐distortion grid current. The experimental results are presented to demonstrate the validity and features of the proposed operation method.