Open AccessQuadratic buck–boost converter with reduced input current ripple and wide conversion range
Author(s) -
GarcíaVite Pedro Martín,
RosasCaro Julio C.,
MartínezSalazar Ana Lidia,
Chavez Jose de Jesus,
ValderrábanoGonzález Antonio,
SánchezHuerta Victor M.
Publication year - 2019
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.2018.5616
Subject(s) - ripple , buck–boost converter , boost converter , inductor , buck converter , control theory (sociology) , voltage , electronic engineering , ćuk converter , electrical engineering , computer science , engineering , control (management) , artificial intelligence
This study introduces an advanced DC–DC power converter with two main objectives, (i) to achieve a wide range of voltage gain, which means the converter may work over a wide range of input voltage for a fixed desired output voltage and (ii) to achieve a reduced input current ripple. Those features are highly desired in renewable energy applications, for example with photovoltaic panels and fuel cells. The proposed converter was designed in a structure in which the input voltage is composed by the difference of two inductor currents, the currents through inductors are driven with transistors that may have different duty cycle, this allows the current ripple cancellation. In addition, the structure of the converter provides a quadratic type voltage gain, which leads to a wide range of operation voltage. The converter achieves both the wire range of voltage gain and current ripple cancellation, nonetheless, the buck–boost capability is also provided. The input current ripple reduction helps preserve the renewable energy sources since they suffer deterioration when current with considerable ripple is drawn from them. Dynamic and steady‐state analysis are performed along with the components sizing. Simulation and experimental results are provided to demonstrate the principle of the proposition.