Open AccessHigh step‐up isolated resonant converter with voltage quadrupler rectifier and dual‐phase‐shift control
Author(s) -
Wu Hongfei,
Xia Tian,
Zhan Xiaohai,
Xing Yan
Publication year - 2015
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.2014.0665
Subject(s) - voltage doubler , voltage , peak inverse voltage , rectifier (neural networks) , diode , high voltage , voltage divider , electrical engineering , voltage regulation , dropout voltage , electronic engineering , materials science , engineering , computer science , stochastic neural network , machine learning , recurrent neural network , artificial neural network
An isolated resonant converter with voltage‐quadrupler rectifier (VQR) and dual‐phase‐shift (DPS) control strategy is proposed for high step‐up and wide voltage range applications. The VQR is composed of a resonant‐type voltage doubler and a conventional voltage doubler. The output voltage is improved and the voltage stresses of the secondary‐side devices are reduced significantly. Hence, low voltage‐rated switches and diodes with better switching and conduction performances can be applied to improve the efficiency. The DPS modulation strategy is adopted to implement the boost and buck modes operation, and to achieve wide voltage gain range. With the DPS control strategy, zero‐voltage switching performance is achieved for both the primary and secondary sides power devices, and zero‐current switching is achieved for all of the diodes within the entire voltage and load ranges. The operational principles and characteristics of the proposed converter are presented in detail. The analysis and performance have been fully validated experimentally on a 400 V/400 W output hardware prototype.