Open AccessComparison of boost and LLC converter and active clamp isolated full‐bridge boost converter for photovoltaic DC system
Author(s) -
Liu Jiye,
Zheng Zedong,
Wang Kui,
Li Yong Dong
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2018.8507
Subject(s) - boost converter , photovoltaic system , half bridge , forward converter , electrical engineering , ćuk converter , computer science , engineering , voltage , capacitor
DC collection network offers an attractive alternative to AC network for photovoltaic, as it avoids the charging current issues and reduces the size and weight. Variable voltage gain DC/DC converters play an important role in DC collection network. Two topologies suitable for photovoltaic DC collection are studied. Boost and LLC converter and active clamp isolated full‐bridge boost converter are two converters with high and variable voltage conversion ratio suitable for the photovoltaic system. This work investigates the two converters comprehensively. The topologies are analysed so as to summarise and compare the characteristic of the converters. Soft switching condition is compared to help extend the zero voltage switching range. Voltage and current stress of the two converters are calculated. Loss comparison is made with the theoretical analysis. Advantages and disadvantages are summarised to get a deep insight into their application field.