High Performance Synchronous Reluctance Motor for Electric Vehicles - Comparison between NGO and GO Electrical Steels

The electric car market is booming and in the next twenty years a surge electric vehicles sales is expected which should exceed that of traditional ICE cars.
The adopting motor solutions are mainly based on high performance permanent magnets but the high and volatile cost of raw materials for magnets makes uncertain their long-term availability, especially since the electric vehicle technology is going to be manufactured in mass production. Therefore, there is a growing attention in alternative solutions that include rare-earth free machines and the Synchronous Reluctance motor represent a valid alternative for electric and hybrid vehicles due to their simple and rugged construction.
In this paper, a case study is presented and particularly a high speed Synchronous Reluctance motor for “premium“ full-electric vehicle with focus on the comparison between low-thickness NGO and GO electrical steels.