The simulation of a new high frequency transformer


Creative Commons License

Hatem S., KURT E.

Journal of Energy Systems, cilt.6, sa.2, ss.322-337, 2022 (Scopus) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 6 Sayı: 2
  • Basım Tarihi: 2022
  • Doi Numarası: 10.30521/jes.1123925
  • Dergi Adı: Journal of Energy Systems
  • Derginin Tarandığı İndeksler: Scopus
  • Sayfa Sayıları: ss.322-337
  • Anahtar Kelimeler: Core, Ferrofluid, High frequency, Magnetic fluid, MHz, Power, Transformer
  • Gazi Üniversitesi Adresli: Evet

Özet

© 2022 Published by peer-reviewed open access scientific journal, JES at DergiPark.Core losses of transformers motivate many engineers and scientists to design and implement different transformers for their specific aims. Since there exists a growing interest on high frequency applications in today’s world, design and optimization studies of a magnetic fluid core transformer (MFCT), having an easy and cheap production approach in high frequency applications, are considered in the present paper. The desired design should operate in a more efficient way within a wide frequency band. The MFCT considered here can be a solution to the eddy currents and core losses encountered in the conventional transformers with its low conductivity, oil-based magnetic fluid and super paramagnetic characteristic. The magnetic fluid in the proposed work consists of a combination of ferromagnetic particles made by iron in an averaged diameter of 70 µm with an adjustable magnetism compared to the traditional magnetic fluids and an engine oil, thereby the magnetic permeability of the overall fluid core can be fully adjustable by the variation of mass proportion between the oil and iron powder as an easy process without any chemical process. A COMSOL Multi-Physics design is performed via a finite element package in three dimensions. It is proven that the iron particles exhibit a complicated pattern inside the engine oil and produce a well-defined high frequency output at the secondary windings in a wide range of frequency.