COMPEL - The international journal for computation and mathematics in electrical and electronic engineering: Volume 42 Issue 5

Guest editorial: Recent advances in computational electromagnetics

GPU-accelerated body-internal electric field exposure simulation using low-frequency magnetic field sampling points

High resolution simulations of body-internal electric field strengths induced by magneto-quasistatic fields from wireless power transfer systems are computationally expensive. The…

Micromagnetics and multiscale hysteresis simulations of permanent magnets

Confronting the unveiled sophisticated structural and physical characteristics of permanent magnets, notably the samarium–cobalt (Sm-Co) alloy, This work aims to introduce a…

Pyrit: A finite element based field simulation software written in Python

The purpose of this paper is to present the freely available finite element simulation software Pyrit.

The system for distributed energy resources testing according to the IEEE 1547-2018 standard

This paper aims to propose a new approach to testing distributed energy resources (DERs) in compliance with the IEEE 1547-2018 standard and describes a new, integrated testing and…

Eddy current losses in power voltage transformer open-type cores

The purpose of this paper is to present a methodology for calculating eddy current losses in the core of a single-phase power voltage transformer, which, unlike a standard power…

Electric field and SAR distribution in the vicinity of dental implants exposed to the cell phone electromagnetic radiation

The purpose of this paper is to determine the electric field and specific absorption rate (SAR) distribution within biological tissues in the vicinity of dental implants, exposed…

On the field uniformity of reverberation chambers – a global sensitivity analysis study

Global sensitivity analysis (SA) by means of Sobol’ indices enhanced with different surrogate modeling techniques is performed in this work. The purpose is to investigate the…

Comparison of damping techniques in non-linear spring-mass systems for power transformers under short-circuit condition

The simplified modeling of many physical processes results in a second-order ordinary differential equation (ODE) system. Often the damping of these resonating systems cannot be…

Modelling stranded wires using homogenization and the Cauer ladder method

The purpose of this paper is to introduce a new method to model a stranded wire efficiently in 3D finite element simulations.

Fast numerical techniques for FE simulations in electrical capacitance tomography

Nonlinear solution approaches for inverse problems require fast simulation techniques for the underlying sensing problem. In this work, the authors investigate finite element (FE…

Evaluating magnetic fields using deep learning

The purpose of this paper is to develop surrogate models, using deep learning (DL), that can facilitate the application of EM analysis software. In the current status quo…

Topology optimization and parameter optimization hybridized by mesh smoothing for IPMSM design

Topology optimization (TO) methods have shown their unique advantage in the innovative design of electric machines. However, when introducing the TO method to the rotor design of…

An improved on/off method with a two-step surface smoother for topology optimization of electromagnetic devices

Topology optimization is a state-of-the-art technique for the innovative design of electromagnetic devices. The ON/OFF method is a typical approach for this purpose. However, the…

Toward a simple topological model of a three-phase transformer including deep saturation conditions

This paper aims to propose a method of parametrizing topological transformer model at high flux densities in the core.

Asymmetric air gap fault detection in linear permanent magnet Vernier machines

The aim of this paper is to introduce an accurate asymmetric fault index for the diagnosis of the faulty linear permanent magnet Vernier machine (LPMVM).

Thermal analysis for foreign objects in high-power wireless power transfer systems

This paper aims to present a fast and modular framework implementation for the thermal analyses of foreign metal objects in the context of wireless power transfer (WPT) to…

Target classification using radar cross-section statistics of millimeter-wave scattering

This paper aims to discuss the classification of targets based on their radar cross-section (RCS). The wavelength, the dimensions of the targets and the distance from the antenna…

Feasibility study of eigenmode propagation through 2D models of vegetation

This study aims to model and investigate low-loss wave-propagation modes across random media. The objective is to achieve better channel properties for applying radio links…