Transportation Electrification: Electric Machines in Electric Drive Trains
The first generation prototype electric vehicles were developed with DC machines, but eventually the industry switched to AC machines. Both permanent magnet (PM) and induction machine based electric powertrains are being produced for electric and hybrid vehicles. Currently, the most common type of electric machine used for production and prototype EV/HEVs is the interior PM synchronous machine (IPM). This machine has a higher power density because the rotor has no windings, only permanent magnets. The IPMs have excellent efficiencies and high power densities; the limited field weakening capability in conventional PM synchronous machines is overcome by having the magnets buried inside the rotor. Induction machines are used in some of the production electric vehicles. The induction machine technology is mature, the materials are readily available, and the production cost is relatively lower. However, these machines have limited constant power range and the efficiency is lower than that of a similarly sized comparable PM Machine.
What you will learn:
- Describe the basic physics of the operation of an electric machine
- Explain basic physical principles applied in various types of electric machines
- Explain why certain types of electric machines are preferred for application in electric drive trains
- List potential failure mechanisms in electric machines
Related courses:
Who should attend: Electrical engineer, Network engineer, Data engineer, Design engineer, Hardware engineer, Security engineer, Lead engineer, Project engineer, Product engineer, Software engineer, System, Manufacturing engineer
Instructor
James Gover
Dr. James Gover, IEEE Life Fellow, is currently Professor Emeritus at Kettering University and teaches graduate courses on power semiconductors, advanced power electronics and fuel cell system integration and packaging. Dr. Gover was Professor of Electrical and Computer Engineering at Kettering for fourteen years and served as Department Chair for three years. His research and teaching specialty at Kettering University was hybrid electric vehicles and the associated technologies. He was awarded the title of IEEE Fellow for his work in radiation effects.
Publication Year: 2013
ISBN: 1-4673-3228-3