SEPIC converter with wide bandgap semiconductor for PV battery charger

Manisha Maharjan, Prajina Tandukar, Abhilasha Bajracharya, Fernando B. Dos Reis, Ujjwol Tamrakar, Dipesh Shrestha, Fernando S. Dos Reis, Reinaldo Tonkoski

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

Photovoltaic (PV) charger systems are implemented in power electronic converters for battery charging applications. In order to achieve high efficiency, the choice of the component plays a major role. At the same time, such systems require high performance in terms of faster switching, high-power, and high-temperature operation capability. Converters with conventional silicon-based power switching devices may not accomplish all these requirements effectively. This paper presents the design of a single-ended primary inductance converter (SEPIC) using silicon carbide (SiC) and conventional silicon power switching devices to compare the performance in terms of the efficiency. The designed converter was first validated in PSIM simulation software to assess the effectiveness of using SiC power devices to charge a 48 V battery from a 250 Wp PV panel with a voltage of 30.7 V. Furthermore, a hardware prototype of the converter was developed and tested on a resistive load. The use of SiC-based switches increased the efficiency of the SEPIC converter by 3.6% at full load and at a switching frequency of 100 kHz.

Original languageEnglish
Title of host publication14th Brazilian Power Electronics Conference, COBEP 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-5
Number of pages5
ISBN (Electronic)9781509062485
DOIs
StatePublished - 1 Jul 2017
Externally publishedYes
Event14th Brazilian Power Electronics Conference, COBEP 2017 - Juiz de Fora, Brazil
Duration: 19 Nov 201722 Nov 2017

Publication series

Name14th Brazilian Power Electronics Conference, COBEP 2017
Volume2018-January

Conference

Conference14th Brazilian Power Electronics Conference, COBEP 2017
Country/TerritoryBrazil
CityJuiz de Fora
Period19/11/1722/11/17

Keywords

  • Photovoltaic (PV) charger
  • silicon carbide (SiC)
  • single-ended primary inductance converter (SEPIC)
  • wide bandgap semiconductor

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