DESIGN AND ANALYSIS OF HALBACH ARRAY PERMANENT MAGNET VERNIER MACHINE

Abstract

In recent years, extensive research has been conducted on permanent magnet field machinery due to its ability to achieve high torque density. Increasing the average torque of electrical machines offers numerous advantages, including enhanced power output, improved performance, greater efficiency, compact structural design possibilities, and extended operational ranges. These advancements have significant implications for electric vehicles, renewable energy systems, industrial automation, and other emerging technologies, thereby driving overall technological progress. In this study, a Halbach array has been introduced in place of conventional permanent magnets to enhance the efficiency of the proposed design compared to the traditional one. Initially, a conventional model was developed, achieving an average torque of 28.8475 Nm. Subsequently, the proposed design was implemented, in which the average torque increased to 35.4123 Nm by effectively reducing the cogging torque, which represents undesirable torque ripple or noise in the machine. This indicates that the new design supports approximately 7.4% higher average torque than the conventional configuration. Naturally, with improved torque capability, the machine’s rotational speed and operational performance also increase, making it highly suitable for future applications such as wind turbines, robotics, power generation systems, and aerospace technologies. Finally, a comparison of efficiency under both normal and modular operating conditions demonstrates the feasibility and superiority of the proposed design, highlighting the critical parameters contributing to its enhanced performance