International Journal of Applied Electromagnetics and Mechanics - Volume 69, issue 2

Authors: Douar, Hakim | Hadjout, Larbi | El Hadj, Ailam | Douine, Bruno

Article Type: Research Article

Abstract: In this work, a novel superconducting (SC) inductor topology for an axial flux synchronous machine is presented and tested. The proposed device combines HTS YBaCuO bulks and coils supplied with DC current to create a variable air gap flux density distribution. In fact, the two SC bulks modulate and redirect the flux lines produced by the coil thanks to their magnetic field shielding property. This results in a periodic space variation of the axial component of the flux density. A 3D electromagnetic modeling based on a finite element solution is developed to demonstrate the relevance of using the magnetic shielding …properties of SC bulks. In order to verify the screening properties of the SC bulk, a prototype of the proposed inductor was constructed and tested in the laboratory. Show more

Keywords: Axial machine, magnetic field concentration, superconductor, synchronous machine

DOI: 10.3233/JAE-210173

Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 69, no. 2, pp. 233-244, 2022

Authors: Bouchareb, Ilhem

Article Type: Research Article

Abstract: A significant advance has been made in medical diagnosis through introduction of mathematical theories and artificial intelligence (AI). The main theme of this research work is to presents a novel arteries unblocks sensor model based on the principle of the propagation electromagnetic waves. Sensor model based on an electromagnetic waves transmit shock waves through guide wires to specifically cross calcified and fibrotic tissues in the arterial vascular system while leaving intact the elastic wall of healthy vessels. This sensor model has been implemented in a designed system model in an electric circuit inside stockings. The observed results are presented to …illustrate the performances of his ability to move strange objects which represents the suspended cholesterol. The results expressed by the distance traveled by the stone under the influence of electromagnetic waves transmitted in water showed that the application of this principle for a period of time allows the opening of blockage of the arteries which demonstrates the performance of the proposed sensor model and the entire system. For health state monitoring: severity and localization coordinates of the arteries unblocks by incorporating artificial intelligence tools are studied in detail in second part for better obstruction treatment. Show more

Keywords: Atherosclerosis, arteries, electromagnetic waves, sensor, unblocks

DOI: 10.3233/JAE-210196

Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 69, no. 2, pp. 245-261, 2022

Authors: Bijak, Joanna | Trawiński, Tomasz | Szczygieł, Marcin

Article Type: Research Article

Abstract: The aim of this article is the mathematical modeling of the car wheel with an energy harvester. The car wheel will be represented as a 3-DoF robotic kinematic chain. The Matlab program has been used to simulate the movement of the car wheel and the movement of the electromagnetic energy harvester located on the tire of the wheel. Simulation of the movement of the energy harvesting element allows us to compute the energy harvested in such a system.

Keywords: Energy harvesting, car wheel vibration, homogeneous transformation, kinematic chain

DOI: 10.3233/JAE-210216

Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 69, no. 2, pp. 263-278, 2022

Authors: Malčeski, Stojan | Vuletić, Jovica | Todorovski, Mirko | Angelov, Jordančo

Article Type: Research Article

Abstract: Throughout the past few decades, the share of distributed generation in power systems has increased continuously. This increasing trend coupled with the continuous demand growth in the distribution systems started a shift towards heavier reactive power consumption. The latter paved the way for the development of advanced operational and planning algorithms for power distribution systems. Following these trends in the distribution systems, the distribution grids must be developed with greater reliability and flexibility, i.e. smart grids. Consequently, the implementation of smart technologies instead of traditional ones should be considered wherever feasible. This paper presents an approach for optimal placement, economic …sizing, and operation point search of distribution static VAR compensator (D-SVC) using an exhaustive analytical search. The proposed algorithm introduces quite a few novelties, unique, superior, and repetitive results presented on a distribution test system IEEE 69. Show more

Keywords: Distribution static VAR compensator, distribution system, harmonics, power losses, harmonic spectrum, dynamic model

DOI: 10.3233/JAE-210200

Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 69, no. 2, pp. 279-292, 2022

Authors: Corin, Ronan | Lecointe, Jean-Philippe | Demian, Cristian | Blaszkowski, Jonathan

Article Type: Research Article

Abstract: The Epstein frame is a well-known standardized system used to characterize soft magnetic materials. The users of this device usually consider that all the strips of a same grade placed in the frame are homogeneous, and they do not take into account the potential impact of the heterogeneity of the sheets on the quality of the characteristics deduced from the measurements. The aim of this paper is to quantify the individual heterogeneity of Epstein samples of the same FeSi grade (BH curve, losses, permeability), and to analyze, by both experimental and numerical ways, if the layout of the sheets can …impact the Epstein core losses. Show more

Keywords: Grain oriented electrical steel, epstein frame, heterogeneity, silicon iron, iron losses

DOI: 10.3233/JAE-210184

Citation: International Journal of Applied Electromagnetics and Mechanics, vol. 69, no. 2, pp. 293-302, 2022