Abstract
The cogging torque is the most significant issue in permanent magnet applications, since it has a negative impact on machine performance. In this article, the impact of magnetic materials on cogging torque is analyzed on brushless DC motors (BLDC). The effect of neodymium magnets (NdFeB), compression molded magnet, and samarium cobalt (SmCo) magnet on the cogging torque is analyzed to the BLDC motor designed for hybrid electric vehicle traction that has the peak power rating of 50 kW motor with 48 stator slots and 8 rotor poles. With the presence of these three magnetic materials, the cogging torque is estimated independently using multiposition simulation. The multiposition is simulated using a transient application that runs at constant speed. The results of cogging torque, rotational speed, angular position of BLDC motor, and magnetic flux density distribution have been presented. Also, the maximal, mean, minimal, rectified mean, and rms values of cogging torque were provided.
Highlights
Introduction ebrushless DC motors (BLDC) motor is broadly employed in a variety of applications such as home appliances, automotive, aviation, health industry, industrial automation equipment, and instrumentation [1, 2]
Because of the harmonic magnetic forces produced by cogging torque, redundant vibrations and forbidding noises occur in medium-low power permanent magnet brushless DC (PMBLDC) motors [8]
Cogging torque is generated by motors that use permanent magnets, such as PMBLDC motors and permanent magnet synchronous motors (PMSM) [9]
Summary
Analysis of the Impact of Magnetic Materials on Cogging Torque in Brushless DC Motor. E cogging torque is the most significant issue in permanent magnet applications, since it has a negative impact on machine performance. The impact of magnetic materials on cogging torque is analyzed on brushless DC motors (BLDC). In permanent magnet brushless DC (PMBLDC) motors, cogging torque is a serious issue. Magnetic interaction between a permanent magnet and steel in a slotted armature is the main reason of cogging torque creation in BLDC motors [10,11,12]. We Advances in Materials Science and Engineering analyzed the impact of magnetic materials [13] on cogging torque generation in IPMBLDC motor. Because the molecules in the magnet accelerate faster when it is heated, the magnetic field weakens
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
