Abstract
This paper presents an electromagnetic finite element (FE) analysis of combinations of electrical steels in the lamination core steps of a real 6.3 MVA single-phase distribution transformer. The magnetic core of this transformer has a cruciform cross-section with lamination core steps. Two electrical steels are combined in the lamination core steps of transformer: a convectional grain oriented electrical steel (M-5) and laser-scribed electrical steel (23ZDKH90). 3-D FE simulations are performed to calculate the core losses (no-load losses) without and with combinations of electrical steels. B-H curves and iron loss curves of electrical steels are taken into account in the numerical simulations. The core loss calculated in FE simulation without combination of steels is compared with the core loss measured in no-load laboratory tests. Numerical results show that the combination of electrical steels in the lamination core steps can reduce 5% the core losses in single-phase distribution transformers with stacked magnetic cores. Finally, material costs are estimated for the steel combinations in the magnetic core of transformer.
| Original language | English |
|---|---|
| Title of host publication | 2017 IEEE International Autumn Meeting on Power, Electronics and Computing, ROPEC 2017 |
| Publisher | IEEE |
| Pages | 1-5 |
| Number of pages | 5 |
| ISBN (Electronic) | 9781538608197 |
| DOIs | |
| Publication status | Published - 1 Jul 2017 |
| Externally published | Yes |
| Publication type | A4 Article in conference proceedings |
| Event | 2017 IEEE International Autumn Meeting on Power, Electronics and Computing, ROPEC 2017 - Ixtapa, Guerrero, Mexico Duration: 8 Nov 2017 → 10 Nov 2017 |
Conference
| Conference | 2017 IEEE International Autumn Meeting on Power, Electronics and Computing, ROPEC 2017 |
|---|---|
| Country/Territory | Mexico |
| City | Ixtapa, Guerrero |
| Period | 8/11/17 → 10/11/17 |
Keywords
- core loss
- distribution transformer
- electrical steel
- finite element
- lamination core step
- no-load loss
ASJC Scopus subject areas
- Computer Science Applications
- Computer Vision and Pattern Recognition
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering