Hong Soon Choi
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View article: BH Curve Tracing Method Based on Magnetic Contact Force
BH Curve Tracing Method Based on Magnetic Contact Force Open
This paper proposes a novel method for tracing the BH curve of electrical steel based on magnetic contact force. Generally, the BH curve of electrical steel is measured using methods such as the Epstein frame or the vibrating sample magnet…
View article: Analysis and Modeling of Axial Leakage for Spoke-Type Hybrid Permanent Magnet Machines
Analysis and Modeling of Axial Leakage for Spoke-Type Hybrid Permanent Magnet Machines Open
In this study, we propose a novel analysis method for a spoke-type permanent magnet (PM) synchronous motor (PMSM) using two types of PMs that consider axial leakage flux using a magnetic equivalent circuit (MEC). Spoke-type ferrite PMSM ha…
View article: Torque Analysis for Rotational Devices with Nonmagnetic Rotor Driven by Magnetic Fluid Filled in Air Gap
Torque Analysis for Rotational Devices with Nonmagnetic Rotor Driven by Magnetic Fluid Filled in Air Gap Open
In magnetomechanical applications, it is necessary to calculate the magnetic force or torque of specific objects. If the magnetic fluid is involved, the force and torque also include the effect of pressure caused by the fluid. The standard…
View article: Design and analysis of a novel spoke‐type motor to reduce the use of rare‐earth magnet materials
Design and analysis of a novel spoke‐type motor to reduce the use of rare‐earth magnet materials Open
In this study, a novel design for a tilted spoke‐type hybrid permanent magnet synchronous motor (TH‐PMSM) that uses two types of permanent magnet (PM) materials is proposed to reduce the consumption of rare‐earth PM materials. The key feat…
View article: Analysis of Contact Force in Eddy-current System Using the Virtual Air-Gap Concept
Analysis of Contact Force in Eddy-current System Using the Virtual Air-Gap Concept Open
It is difficult to calculate the magnetic force of an object of magnetic material in contact with other objects using the existing methods, such as Maxwell stress tensor method, magnetic charge method, or magnetizing current method. These …