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Modeling and validation of stray-field loss inside magnetic and non-magnetic components under harmonics-DC hybrid excitations based on updated TEAM Problem 21

Zhiguang Cheng (Institute of Power Transmission and Transformation Technology, Baobian Electric, Baoding, China)
Behzad Forghani (Mentor Infolytica, a Siemens Business, Quebec, Canada)
Zhenbin Du (Institute of Power Transmission and Transformation Technology, Baobian Electric, Baoding, China)
Lanrong Liu (Institute of Power Transmission and Transformation Technology, Baobian Electric, Baoding, China)
Yongjian Li (State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin, China)
Xiaojun Zhao (School of Electrical Engineering, North China Electric Power University, Baoding, China)
Tao Liu (Institute of Power Transmission and Transformation Technology, Baobian Electric, Baoding, China)
Linfeng Cai (Institute of Power Transmission and Transformation Technology, Baobian Electric, Baoding, China)
Weiming Zhang (Institute of Power Transmission and Transformation Technology, Baobian Electric, Baoding, China)
Meilin Lu (Institute of Power Transmission and Transformation Technology, Baobian Electric, Baoding, China)
Yakun Tian (State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin, China)
Yating Li (State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin, China)

COMPEL - The international journal for computation and mathematics in electrical and electronic engineering

ISSN: 0332-1649

Article publication date: 16 August 2021

Issue publication date: 11 October 2021

126

Abstract

Purpose

This paper aims to propose and establish a set of new benchmark models to investigate and confidently validate the modeling and prediction of total stray-field loss inside magnetic and non-magnetic components under harmonics-direct current (HDC) hybrid excitations. As a new member-set (P21e) of the testing electromagnetic analysis methods Problem 21 Family, the focus is on efficient analysis methods and accurate material property modeling under complex excitations.

Design/methodology/approach

This P21e-based benchmarking covers the design of new benchmark models with magnetic flux compensation, the establishment of a new benchmark measurement system with HDC hybrid excitation, the formulation of the testing program (such as defined Cases I–V) and the measurement and prediction of material properties under HDC hybrid excitations, to test electromagnetic analysis methods and finite element (FE) computation models and investigate the electromagnetic behavior of typical magnetic and electromagnetic shields in electrical equipment.

Findings

The updated Problem 21 Family (V.2021) can now be used to investigate and validate the total power loss and the different shielding performance of magnetic and electromagnetic shields under various HDC hybrid excitations, including the different spatial distributions of the same excitation parameters. The new member-set (P21e) with magnetic flux compensation can experimentally determine the total power loss inside the load-component, which helps to validate the numerical modeling and simulation with confidence. The additional iron loss inside the laminated sheets caused by the magnetic flux normal to the laminations must be correctly modeled and predicted during the design and analysis. It is also observed that the magnetic properties (B27R090) measured in the rolling and transverse directions with different direct current (DC) biasing magnetic field are quite different from each other.

Research limitations/implications

The future benchmarking target is to study the effects of stronger HDC hybrid excitations on the internal loss behavior and the microstructure of magnetic load components.

Originality/value

This paper proposes a new extension of Problem 21 Family (1993–2021) with the upgraded excitation, involving multi-harmonics and DC bias. The alternating current (AC) and DC excitation can be applied at the two sides of the model’s load-component to avoid the adverse impact on the AC and DC power supply and investigate the effect of different AC and DC hybrid patterns on the total loss inside the load-component. The overall effectiveness of numerical modeling and simulation is highlighted and achieved via combining the efficient electromagnetic analysis methods and solvers, the reliable material property modeling and prediction under complex excitations and the precise FE computation model using partition processing. The outcome of this project will be beneficial to large-scale and high-performance numerical modeling.

Keywords

Citation

Cheng, Z., Forghani, B., Du, Z., Liu, L., Li, Y., Zhao, X., Liu, T., Cai, L., Zhang, W., Lu, M., Tian, Y. and Li, Y. (2021), "Modeling and validation of stray-field loss inside magnetic and non-magnetic components under harmonics-DC hybrid excitations based on updated TEAM Problem 21", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 40 No. 5, pp. 941-960. https://doi.org/10.1108/COMPEL-03-2021-0114

Publisher

:

Emerald Publishing Limited

Copyright © 2021, Emerald Publishing Limited

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