<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>The authors present an analytical model for a voltage step-up/step-down DC/DC converter without transformers. The proposed topology is a combination of classic buck and boost converters in one single circuit but with differing operational principles. The converter is developed for a wind power autonomous supply system equipped with a hydrogen electrolytic tank and a fuel cell for energy stabilization. The main power source of the hydrogen-based autonomous supply system is energized by a synchronous generator operating on permanent magnets and equipped with a diode bridge. The input voltage of the converter in this case varies in the range 0-700 V, while its output DC voltage must be 540 V according to the demand of other parts of the system. To maintain the rated voltage, a special electrical load regulation is introduced. The calculations of the converter, the generator (equipped with a diode bridge) as element of the power system supply joint, and the load replaced by resistance are verified with PSIM software.</p></abstract>

The authors present an analytical model for a voltage step-up/step-down DC/DC converter without transformers. The proposed topology is a combination of classic buck and boost converters in one single circuit but with differing operational principles. The converter is developed for a wind power autonomous supply system equipped with a hydrogen electrolytic tank and a fuel cell for energy stabilization. The main power source of the hydrogen-based autonomous supply system is energized by a synchronous generator operating on permanent magnets and equipped with a diode bridge. The input voltage of the converter in this case varies in the range 0-700 V, while its output DC voltage must be 540 V according to the demand of other parts of the system. To maintain the rated voltage, a special electrical load regulation is introduced. The calculations of the converter, the generator (equipped with a diode bridge) as element of the power system supply joint, and the load replaced by resistance are verified with PSIM software.

Performance of a Voltage Step-Up/Step-Down Transformerless DC/DC Converter: Analytical Model

Rigas Technical University, 1 Kaļķu Str., LV-1050, Riga, LATVIA

Latvian Journal of Physics and Technical Sciences

The authors present an analytical model for a voltage step-up/step-down DC/DC converter without transformers. The proposed topology is a combination of classic...

Performance of a Voltage Step-Up/Step-Down Transformerless DC/DC Converter: Analytical Model

Published Online: Sep 17, 2012

Page range: 29 - 40

DOI: https://doi.org/10.2478/v10047-012-0021-5

Keywords
buck-boost converters, transformerless converter, syn-chronous generator, wind energy, industrial application

This content is open access.

Performance of a Voltage Step-Up/Step-Down Transformerless DC/DC Converter: Analytical Model

Published Online: Sep 17, 2012

Page range: 29 - 40

DOI: https://doi.org/10.2478/v10047-012-0021-5

Keywordsbuck-boost converters, transformerless converter, syn-chronous generator, wind energy, industrial application

This content is open access.

Keywords
buck-boost converters, transformerless converter, syn-chronous generator, wind energy, industrial application