Analysis, modeling, and implementation of a new transformerless semi‐quadratic Buck–boost DC/DC converter

Sara Hasanpour; Ali Mostaan; Alfred Baghramian; Hamed Mojallali

doi:10.1002/cta.2620

journal article Mar 04, 2019

Analysis, modeling, and implementation of a new transformerless semi‐quadratic Buck–boost DC/DC converter

Sara Hasanpour

Ali Mostaan

Alfred Baghramian

Hamed Mojallali

International Journal of Circuit Theory and Applications Vol. 47 No. 6 pp. 862-883 · Wiley

View at Publisher Save 10.1002/cta.2620

Abstract

SummaryThis paper presents a novel transformerless semi‐quadratic buck‐boost converter (SQBuBoC). In the proposed SQBuBoC, two power switches with simultaneous operation are used and a higher step‐up/step‐down voltage conversion ratio is achieved compared with the traditional buck‐boost, Cuk, single‐ended primary‐inductor converter, and Zeta converters. The positive polarity of the output voltage, along with low ripple continuous input current and common ground between the source and the output voltages, are some features that make the suggested topology more suitable for many applications with wide range of output voltage such as photovoltaic systems. Moreover, the total voltage stress across the power switches in this converter is lower than the cascade boost, and the traditional buck‐boost converters led to power MOSFETs selection with lower drain‐source ON resistance (Rds) and efficiency improvement. All the steady‐state analysis and comparisons in continuous conduction mode (CCM) are discussed in details. In addition, to study the low frequency behavior of the SQBuBoC by means of the state‐space averaging technique, the small and large signal models of this converter in CCM are presented. Finally, the SQBuBoC analysis is justified using experimental results of a 50 W step‐up 25 V to 120 V and a 28 W step‐down 25 V to 14 V laboratory prototypes.

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Metrics

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Citations

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References

Details

Published: Mar 04, 2019
Vol/Issue: 47(6)
Pages: 862-883
License: View

Authors

S

Sara Hasanpour

Department of Electrical Engineering University of Guilan Rasht Iran

A

Ali Mostaan

Department of Electrical Engineering University of Guilan Rasht Iran; Electrical engineering department Iranian Central Oil Field Company Tehran Iran

A

Alfred Baghramian

Department of Electrical Engineering University of Guilan Rasht Iran

H

Hamed Mojallali

Department of Electrical Engineering University of Guilan Rasht Iran

Cite This Article

Sara Hasanpour, Ali Mostaan, Alfred Baghramian, et al. (2019). Analysis, modeling, and implementation of a new transformerless semi‐quadratic Buck–boost DC/DC converter. International Journal of Circuit Theory and Applications, 47(6), 862-883. https://doi.org/10.1002/cta.2620

Analysis, modeling, and implementation of a new transformerless semi‐quadratic Buck–boost DC/DC converter

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