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Publikācija: Comparison of Performance of Phase-Shift and Asymmetrical Pulse Width Modulation Techniques for the Novel Galvanically Isolated Buck-Boost DC-DC Converter for Photovoltaic Applications

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Nosaukums oriģinālvalodā Comparison of Performance of Phase-Shift and Asymmetrical Pulse Width Modulation Techniques for the Novel Galvanically Isolated Buck-Boost DC-DC Converter for Photovoltaic Applications
Pētniecības nozare 2. Inženierzinātnes un tehnoloģijas
Pētniecības apakšnozare 2.2. Elektrotehnika, elektronika, informācijas un komunikāciju tehnoloģijas
Autori Dmitri Vinnikov
Andrii Chub
Roman Kosenko
Jānis Zaķis
Liisa Liivik
Atslēgas vārdi module integrated converter (MIC), resonant converter, quasi-Z-source converter, asymmetrical pulse width modulation, phase-shift modulation, DC-DC converter, renewable energy, solar photovoltaic, module level power electronics
Anotācija This study discusses realization possibilities of the buck mode in the novel magnetically integrated quasi-Z-Source Series Resonant Converter (qZSSRC) with secondary resonance. Our aim was to achieve higher power conversion efficiency at different power levels and DC voltage gains of the converter. The phase-shift modulation was comprehensively compared with the asymmetrical pulse width modulation. Both control techniques were evaluated for the case of the discontinuous current through the resonant network, which made their realization more challenging. The operating principle of the qZSSRC in the buck mode with two compared control techniques was explained by means of steady-state analysis. To verify the theoretical assumptions, a 250 W prototype of the PV module integrated converter was assembled and tested. It was experimentally confirmed that in contrast to the phase-shift modulation, the asymmetrical pulse width modulation for the buck mode control of the qZSSRC will lead to higher power conversion efficiency at different power levels and DC voltage gains of the converter, except the operating points close to the boundary with the normal mode of the converter.
DOI: 10.1109/JESTPE.2016.2631628
Hipersaite: http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7752785 
Atsauce Vinnikov, D., Chub, A., Kosenko, R., Zaķis, J., Liivik, L. Comparison of Performance of Phase-Shift and Asymmetrical Pulse Width Modulation Techniques for the Novel Galvanically Isolated Buck-Boost DC-DC Converter for Photovoltaic Applications. IEEE Journal of Emerging and Selected Topics in Power Electronics, 2017, Vol.5, Iss.2, 624.-637.lpp. ISSN 2168-6777. e-ISSN 2168-6785. Pieejams: doi:10.1109/JESTPE.2016.2631628
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