Methods of Assessing the Effectiveness of Filter Elements in Power Electronics

Michał Borecki and Jan Sroka
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Michał Borecki: Institute of Theory of Electrical Engineering, Warsaw University of Technology, 00-662 Warsaw, Poland
Jan Sroka: Institute of Theory of Electrical Engineering, Warsaw University of Technology, 00-662 Warsaw, Poland

Energies, 2022, vol. 15, issue 14, 1-12

Abstract: Newly constructed devices must meet a number of requirements in terms of the level of generated disturbances. To achieve an acceptable level in such devices, filters are installed—one of the cheapest ways to reduce interference in devices. One of the key elements of the filter that is responsible for the effectiveness of noise reduction are ferrites. Unfortunately, for various devices, an individual approach should be used in the selection of filters and, accordingly, ferrites. Due to the fact that ferrites from different manufacturers do not have standardized characteristics and information on their effectiveness, the selection of the right ferrite is a very time-consuming process. Therefore, this article will present the possibilities of quickly determining selected ferrite parameters in order to ensure the necessary level of noise reduction. For this purpose, assumptions from the CISPR 17 standard will be used. For selected types of ferrites, a large number of measurements were carried out in order to determine the optimal computational algorithm for adjusting ferrite characteristics to the designed conditions. The performance of these tests will be the basis for conducting tests on a larger number of ferrites, as well as for the development of possible standardization procedures.

Keywords: ferrite; radio emission; power electronics; filter; EMC; CISPR 17 (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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