Parallelization of Boost and Buck Type DC-DC Converters by Individual Passivity-Based Control

Yuma MURAKAWA  Yuhei SADANDA  Takashi HIKIHARA  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E103-A   No.3   pp.589-595
Publication Date: 2020/03/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.2019EAP1069
Type of Manuscript: PAPER
Category: Systems and Control
Keyword: 
parallelization,  DC-DC converter,  passivity-based control,  distributed power source,  

Full Text: FreePDF(3MB)


Summary: 
This paper discusses the parallelization of boost and buck converters. Passivity-based control is applied to each converter to achieve the asymptotic stability of the system. The ripple characteristics, error characteristics, and time constants of the parallelized converters are discussed with considering the dependency on the feedback gains. The numerical results are confirmed to coincide with the results in the experiment for certain feedback gains. The stability of the system is also discussed in simulation and experiment. The results will be a step to achieve the design of parallel converters.