loading page

Core Loss Modeling: Review and a New Approach Based on the Concept of Magnetic-flux resistance and the Square Law
  • Sobhi Barg ,
  • Kent Bertilsson
Sobhi Barg

Corresponding Author:[email protected]

Author Profile
Kent Bertilsson


this paper presents a new approach for linearizing the core loss calculation problem over wide range of frequency and magnetic flux density. The proposed approach is developed based on the fundamental square loss law and the concept of the magnetic-flux resistance (Rmag). Higher accuracy, less complexity and easier applicability are the main features of the derived model in comparison to Steinmetz and Bertotti models. The developed model is an alternative way to explain the hysteresis loss analogous to the AC resistance through the prediction of Rmag. It also gives better physics background and explanation than Steinmetz and Bertotti approaches to the core loss as it lies this phenomenon with the classic square loss law and the material propriety Rmag. The model is developed for several magnetic ferrite materials using measurement results from literature. Index Terms-core loss, magnetic-flux resistance, square loss law, hysteresis, linear and nonlinear problem.
11 Dec 2023Submitted to TechRxiv
14 Dec 2023Published in TechRxiv