The comparison of the enhanced integration-type E&S model and the improved dynamic E&S model of electrical steel sheet under DC-biased magnetizing condition

Article type: Research Article

Authors: Shi, Minxia^a; | He, Cong^b | Zhang, Xuanrui^b | Qiu, Aici^b | Li, Junhao^b

Affiliations: [a] Research Institute for Frontier Science, Beihang University, Beijing, China | [b] State Key of Electrical Insulation and Power Equipment, Xi’an Jiaotong University, Xi’an, China

Correspondence: [*] Corresponding author: Minxia Shi, Research Institute for Frontier Science, Beihang University, Beijing, China. E-mail: [email protected]

Abstract: This paper enhanced the integration-type E&S model and the dynamic E&S model for integrating the impact of DC-biased field and eddy current on vector magnetic properties of electrical steel sheet. B and H of electrical steel sheet are measured under DC-biased and rotating fields. Based on the measured results, the databases of reluctivity and hysteresis coefficients of both the enhanced integration-type E&S model and the improved dynamic E&S model are established for predicting H waveform under any given operating condition. By comparing the H waveform calculated by the enhanced integration-type E&S model and the improved dynamic E&S model with the experimental H waveform, it is found that both two models have good reliability and the improved dynamic E&S model has slightly better accuracy than the enhanced integration-type E&S model.

Keywords: Electrical steel sheet, DC-biased magnetization, Eddy current, the E&S model

DOI: 10.3233/JAE-190095

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 65, no. 1, pp. 171-179, 2021