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Technical gazette, Vol. 28 No. 1, 2021.

Preliminary communication

https://doi.org/10.17559/TV-20191126172929

Common Characteristics of Power Conversion Circuits - Topology, Function and Power Semiconductor Switches

Viktor Šunde* orcid id orcid.org/0000-0002-0705-4429 ; Faculty of electrical engineering and computing, Unska 3, 10000 Zagreb, Croatia
Željko Jakopović ; Faculty of electrical engineering and computing, Unska 3, 10000 Zagreb, Croatia
Zvonko Benčić ; Faculty of electrical engineering and computing, Unska 3, 10000 Zagreb, Croatia
Denis Pelin orcid id orcid.org/0000-0002-9255-1541 ; Josip Juraj Strossmayer University of Osijek, Faculty of Electrical Engineering, Computer Science and Information Technology Osijek, Kneza Trpimira 2B, 31000 Osijek, Croatia

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Abstract

Experience in teaching of power electronics courses shows that at the beginning of the study students do not understand the common background of power conversion circuits. Students think that the topology of a converter circuit exclusively determines its function. In addition, they are not clear about the criteria by which semiconductor switches are to be selected for the given topology and type of conversion. This paper explains the approach to clarify the links between the topology and functions of the converter circuit as well as selection method for the required semiconductor switches. By using a simulation program, which contains model of the ideal switch, it is demonstrated that for the same topology, for example a single-phase bridge circuit, all four types of conversion can be realized. The selection methods of the actual semiconductor switches are based on simulation and analytical approach. By applying the proposed approach of clarifying the links between topology and function of the converter circuit, as well as applying the proposed methods for selection of semiconductor switches, the student's ability to grasp the basic power electronics concepts faster and more effectively is enhanced.

Keywords

power conversion circuits; power converter circuit topology and function; power electronics education; power semiconductor switch

Hrčak ID:

251778

URI

https://hrcak.srce.hr/251778

Publication date:

5.2.2021.

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