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Experimental study on the magnetic permeability of inclusion filled soft polymeric composite for soft-core transformer applications.
- Source :
-
Polymer Testing . Feb2022, Vol. 106, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- The magnetic permeability of three kinds of inclusions (Carbonyl iron, Ferroferric oxide, NiFe-alloy) filled polymer (Polydimethylsiloxane) is investigated at room temperature by using a Buck circuit for the dynamic test and vibrating sample magnetometer (VSM) for the static test. Unlike the traditional measurement method using an impedance analyzer, the self-built circuit can generate a maximum test current of ampere amplitude over high frequencies to simulate the transformer's operation status. The present work considers the effects of inclusion content (from 0 VOL.% to 33 VOL.%) and testing frequencies(100 kHz-1MHz). The experimental results of permeability are compared with the theoretical predictions in the previous works. Three main conclusions can be drawn: First, the magnetic permeability increases with the inclusion addition; Second, as the testing frequency increases, the permeability of the composite material maintains constant, showing no evident dependence on the testing frequency; Third, type of magnetic inclusion will gently affect the permeability of the composite material. This work systematically investigated the permeability of polymer-based magnetic materials, and the results are helpful for the soft-core transformer application of magnetoactive elastomers. • Permeability of magnetic inclusions filled polymer exhibits neglectable variation to the test frequencies (100 kHz-1MHz). • CIP filled polymer is a potential composite material to be used for soft-core transformer applications. • Skin effect must be taken into consideration in high frequency applications. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 01429418
- Volume :
- 106
- Database :
- Academic Search Index
- Journal :
- Polymer Testing
- Publication Type :
- Academic Journal
- Accession number :
- 154594832
- Full Text :
- https://doi.org/10.1016/j.polymertesting.2021.107430