Empirical Implementation of the Steinmetz Equation to Compute Eddy Current Loss in Soft Magnetic Composite Components
Finite element analysis of magnetic materials allows accurate prediction of losses and is crucial in the design of electromagnetic devices and products. Soft magnetic composites are an alternative to silicon steel laminations, yet the electromagnetic material properties are less well documented and...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IEEE
2022-01-01
|
| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/9701358/ |
| _version_ | 1818331841150582784 |
|---|---|
| author | Mehmet C. Kulan Nick J. Baker Konstantinos A. Liogas Oliver Davis John Taylor Alexander M. Korsunsky |
| author_facet | Mehmet C. Kulan Nick J. Baker Konstantinos A. Liogas Oliver Davis John Taylor Alexander M. Korsunsky |
| author_sort | Mehmet C. Kulan |
| collection | DOAJ |
| description | Finite element analysis of magnetic materials allows accurate prediction of losses and is crucial in the design of electromagnetic devices and products. Soft magnetic composites are an alternative to silicon steel laminations, yet the electromagnetic material properties are less well documented and include uncertainties which can lead to inaccurate iron and Joule loss computations. The microstructure of soft magnetic composites, which is based on ferromagnetic particles coated by inorganic resistive insulation, makes the process of iron loss prediction unique. Composite core materials require further attention by design engineers in terms of the effect of component size and pressing processes on core loss predictions, which for laminations uses the well-known Steinmetz law. This study accesses the existing soft magnetic composite core loss modelling trends using experimentally measured results. The challenges of estimating and using Steinmetz core loss coefficients via curve fitting approaches are discussed. The study indicates that soft magnetic composite components need to be treated differently to laminated iron cores. Modelling the composite materials in finite element software requires experimentally informed loss models to be able to accurately compute power losses under varying magnetic flux density and electrical frequency. An approach is suggested which can predict iron losses to within 7%, but is only validated for component cross sectional areas of 144 mm<sup>2</sup> or less. |
| first_indexed | 2024-12-13T13:26:15Z |
| format | Article |
| id | doaj.art-2ec266104c19422faaf8d8e54412a2ff |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-13T13:26:15Z |
| publishDate | 2022-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-2ec266104c19422faaf8d8e54412a2ff2022-12-21T23:44:17ZengIEEEIEEE Access2169-35362022-01-0110146101462310.1109/ACCESS.2022.31485939701358Empirical Implementation of the Steinmetz Equation to Compute Eddy Current Loss in Soft Magnetic Composite ComponentsMehmet C. Kulan0https://orcid.org/0000-0002-7652-7015Nick J. Baker1Konstantinos A. Liogas2Oliver Davis3https://orcid.org/0000-0001-6499-3839John Taylor4Alexander M. Korsunsky5https://orcid.org/0000-0002-3558-5198School of Engineering, Merz Court, Newcastle University, Newcastle upon Tyne, U.K.School of Engineering, Merz Court, Newcastle University, Newcastle upon Tyne, U.K.SG Technologies, Rainham, U.K.SG Technologies, Rainham, U.K.SG Technologies, Rainham, U.K.Department of Engineering Science, University of Oxford, Oxford, Oxfordshire, U.K.Finite element analysis of magnetic materials allows accurate prediction of losses and is crucial in the design of electromagnetic devices and products. Soft magnetic composites are an alternative to silicon steel laminations, yet the electromagnetic material properties are less well documented and include uncertainties which can lead to inaccurate iron and Joule loss computations. The microstructure of soft magnetic composites, which is based on ferromagnetic particles coated by inorganic resistive insulation, makes the process of iron loss prediction unique. Composite core materials require further attention by design engineers in terms of the effect of component size and pressing processes on core loss predictions, which for laminations uses the well-known Steinmetz law. This study accesses the existing soft magnetic composite core loss modelling trends using experimentally measured results. The challenges of estimating and using Steinmetz core loss coefficients via curve fitting approaches are discussed. The study indicates that soft magnetic composite components need to be treated differently to laminated iron cores. Modelling the composite materials in finite element software requires experimentally informed loss models to be able to accurately compute power losses under varying magnetic flux density and electrical frequency. An approach is suggested which can predict iron losses to within 7%, but is only validated for component cross sectional areas of 144 mm<sup>2</sup> or less.https://ieeexplore.ieee.org/document/9701358/Core losseseddy currentselectrical machinesiron lossmagnetic materialsmagnetic testing |
| spellingShingle | Mehmet C. Kulan Nick J. Baker Konstantinos A. Liogas Oliver Davis John Taylor Alexander M. Korsunsky Empirical Implementation of the Steinmetz Equation to Compute Eddy Current Loss in Soft Magnetic Composite Components IEEE Access Core losses eddy currents electrical machines iron loss magnetic materials magnetic testing |
| title | Empirical Implementation of the Steinmetz Equation to Compute Eddy Current Loss in Soft Magnetic Composite Components |
| title_full | Empirical Implementation of the Steinmetz Equation to Compute Eddy Current Loss in Soft Magnetic Composite Components |
| title_fullStr | Empirical Implementation of the Steinmetz Equation to Compute Eddy Current Loss in Soft Magnetic Composite Components |
| title_full_unstemmed | Empirical Implementation of the Steinmetz Equation to Compute Eddy Current Loss in Soft Magnetic Composite Components |
| title_short | Empirical Implementation of the Steinmetz Equation to Compute Eddy Current Loss in Soft Magnetic Composite Components |
| title_sort | empirical implementation of the steinmetz equation to compute eddy current loss in soft magnetic composite components |
| topic | Core losses eddy currents electrical machines iron loss magnetic materials magnetic testing |
| url | https://ieeexplore.ieee.org/document/9701358/ |
| work_keys_str_mv | AT mehmetckulan empiricalimplementationofthesteinmetzequationtocomputeeddycurrentlossinsoftmagneticcompositecomponents AT nickjbaker empiricalimplementationofthesteinmetzequationtocomputeeddycurrentlossinsoftmagneticcompositecomponents AT konstantinosaliogas empiricalimplementationofthesteinmetzequationtocomputeeddycurrentlossinsoftmagneticcompositecomponents AT oliverdavis empiricalimplementationofthesteinmetzequationtocomputeeddycurrentlossinsoftmagneticcompositecomponents AT johntaylor empiricalimplementationofthesteinmetzequationtocomputeeddycurrentlossinsoftmagneticcompositecomponents AT alexandermkorsunsky empiricalimplementationofthesteinmetzequationtocomputeeddycurrentlossinsoftmagneticcompositecomponents |