1. The Effect of Structural Material Parameters on the Operational Characteristic of Traction Drives for EV Applications
- Author
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Martin Nell, D. Ukwungwu, Nora Leuning, Florian Pauli, Simon Steentjes, and Kay Hameyer
- Subjects
010302 applied physics ,Operating point ,Structural material ,business.product_category ,Materials science ,medicine.medical_treatment ,Mechanical engineering ,Traction (orthopedics) ,engineering.material ,01 natural sciences ,Electronic, Optical and Magnetic Materials ,Magnetization ,0103 physical sciences ,Electric vehicle ,medicine ,engineering ,Texture (crystalline) ,Electrical and Electronic Engineering ,business ,Driving cycle ,Electrical steel - Abstract
In this article, the effect of structural material parameters of nongrain-oriented (NO) electrical steel on the driving cycle losses and torque–speed characteristics of electrical traction drives for electric vehicle (EV) applications is studied. The operating point distribution in different driving cycles affects the iron losses and magnetization behavior. As a result, the ideal material choice not only depends on the machine design and topology but also on the application requirements. Structural material parameters of electrical steel, that is, alloying, sheet thickness, grain size, and crystallographic texture, are measures to modulate the magnetic properties. Their effect on iron-loss components is studied for seven industrial NO electrical steel grades. Two traction drives and four driving cycles are evaluated with respect to the structural material parameters as application examples.
- Published
- 2021
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