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Dual Output and High Voltage Gain DC-DC Converter for PV and Fuel Cell Generators Connected to DC Bipolar Microgrids

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Jan 2021 Portugal Publisher:Institute of Electrical and Electronics Engineers (IEEE)Journal:IEEE Access, volume 9, pages 157,124-157,133 (eissn: 2169-3536,

Authors: V. Fernao Pires; Armando Cordeiro; Daniel Foito; J. Fernando A. Silva;

doi: 10.1109/access.2021.3122877

Dual Output and High Voltage Gain DC-DC Converter for PV and Fuel Cell Generators Connected to DC Bipolar Microgrids

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Abstract

This paper introduces a new topology for a DC-DC converter with bipolar output and high voltage gain. The topology was designed with the aim to use only one active power switch. Besides the bipolar multiport output and high voltage gain this converter has another important feature, namely, it has a continuous input current. Due to the self-balancing bipolar outputs, the proposed topology is suitable for bipolar DC microgrids. Indeed, the topology balancing capability can achieve the two symmetrical voltage poles of bipolar DC microgrids. Furthermore, it is possible to create a midpoint in the output of the converter that can be directly connected to the ground of the DC power supply, avoiding common-mode leakage currents in critical applications such as transformerless grid-connect PV systems. The operating principle of the proposed topology will be supported by mathematical analysis. To validate and verify the characteristics of the presented topology, several experimental results are shown.

Country

Portugal

Related Organizations

Instituto Politécnico de Lisboa
Portugal
Instituto Politécnico de Setúbal
Portugal
Instituto Politécnico de Lisboa
Portugal
INESC-ID
Portugal
Instituto Politécnico de Setúbal
Portugal

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Keywords

Single-switch, single-switch, Bipolar DC microgrid, Fuel cell, fuel Cell, bipolar DC microgrid, DC-DC converter, Photovoltaic (PV) systems, <italic xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">DC-DC</italic> converter, TK1-9971, Materials Science(all), Fuel Cell, Photovoltaic (<italic xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">PV</italic>) systems, SDG 7 - Affordable and Clean Energy, Electrical engineering. Electronics. Nuclear engineering, Engineering(all), Computer Science(all), bipolar <italic xmlns:ali="http://www.niso.org/schemas/ali/1.0/" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">DC</italic> microgrid

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	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	40
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 10%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 1%