HOME CONFERENCE Invited speaker
Dr. Zaixin Song
Name
Dr. Zaixin Song
Affiliation
The Hong Kong Polytechnic University, China
Topic
Pursuing High-Overload Electric Motors and Drives for Transportation Electrification - Principle, Technology, and Implementation
Biography

Dr. Zaixin Song (IEEE Member) received the B.Eng. and M.Eng. degrees in electrical engineering and automation at Harbin Institute of Technology (HIT), Harbin, China, in 2016 and 2018, respectively. He received the Ph.D. degree majoring electrical engineering at City University of Hong Kong (CityU), Hong Kong, in 2021. In September 2021, he worked as a postdoctoral research fellow in CityU. In July 2022, he worked as a postdoctoral research fellow in Nanyang Technological University, Singapore. Currently, he is working as a Research Assistant Professor in State Key Laboratory of Ultra-precision Machining Technology (SKL-UMT), Department of Industrial and Systems Engineering at The Hong Kong Polytechnic University.

Dr. Song has been working on electric machinery for years. His current research interests include Electric Motor Design & Control, Sustainable Energy Conversion & Management, Smart Manufacturing & Robotics Drives, Sustainable Propulsion, among other related fields. His expertise lies in the reliability design of electric machines and multiphysics modeling.


Lecture Summary

The growing demand for heavy-duty electric machinery in sectors like electric transportation, mining, robotics, and industrial automation underscores the importance of high-overload motor drives (HOMDs). HOMDs are able to operate under prolonged periods of overload conditions, providing the necessary power and reliability to drive heavy loads. This tutorial will provide multiple comprehensive technological routes and emerging approaches for achieving high-overload capability in electric motors and drives.

The tutorial will firstly introduce the fundamental principles and drivers behind the development of HOMDs. Focusing on machine topology design and advanced manufacturing processing, it will delve into four main technological routes: high electrical loading, high magnetic loading, high mechanical loading, and high thermal loading. Secondly, the tutorial will demonstrate how designers can enhance the operational overloading capability by advanced control strategies in the angle of motor drives. It will delve into optimizing specific objectives such as torque-maximizing control, low-harmonic control, robust sensorless control, and efficiency-enhancing control, corresponding to the technological routes in the first part. In the third part, the tutorial will highlight the latest advancements in motor topologies, novel materials, and integrated control techniques that are enabling the realization of HOMDs. Case studies and design examples will be provided to illustrate the implementation of these technologies.

After all, the tutorial aims to equip attendees with a thorough understanding of the state-of-the-art in HOMD development and empower them to tackle the challenges in designing high-performance, high-reliability electric motors and drives for demanding industrial applications.