February 16
@
12:00 PM
–
1:00 PM
4610 Engineering Hall
Advanced electric motors with high torque density through innovative magnetic materials and novel manufacturing methods
Abstract
The requirement of a clean energy environment has created the need for electric vehicles in the automotive industry. Electrical machines are the most vital component in traction applications as they provide electromechanical energy conversions. Traction applications require motor drive systems that can operate with high torque and high-power densities with reduced maintenance costs. Additionally, these systems should exhibit high efficiency and reduced losses. This talk presents new types of magnetic materials, additive manufacturing methods, and core loss measurement techniques to improve electric motor efficiency and torque density.
First, this talk focuses on the soft magnetic composite (SMC) stator core developed with a spoke-type permanent magnet synchronous machine (PMSM). Conventional electric motors use lamination steel for the stator and rotor cores, which are limited to a 2-D flux path, and skew either rotor or stator to improve the electromagnetic performance. This talk will focus on enhancing electromagnetic performances without skewing the stator or rotor. Also, Muthusamy will present the SMC stator with a 3-D flux path to improve the torque density and efficiency of the motor.
Second, the presentation focuses on the novel coldspray magnets, additive manufacturing, and iron loss measurement techniques. Also, it discusses the application of all these techniques to wound field synchronous machines to improve their torque density an efficiency. Finally, current challenges and potential future work will be discussed.
Dr. Mohanraj Muthusamy
Bio
Mohanraj Muthusamy received his PhD in Electric Machine Design from Concordia University in Montreal, Canada, under the guidance of Professor Pillay and Mr. James Hendershot. His research focuses on innovative magnetic materials, additive manufacturing, and loss-measuring techniques to enhance the efficiency and torque density of electric motors. Currently, he serves as an electromagnetic design engineer at Powersys in Canada. Mohanraj has also gained experience as a part-time magnetic designer at Dana TM4 in Montreal and as an electric machines research engineer at PSG College of Technology in Coimbatore.