Abstract: In recent years,the focus on magnetic performance has gradually extended from electrical steel materials to motor stator cores made of electrical steel materials.The magnetic properties of motor stator cores have attracted increasing attention from motor manufacturers and new energy vehicle manufacturers.This article focused on the magnetic properties of motor stator iron cores,and established a magnetic measurement system to achieve the detection of the magnetic performance of motor stator iron cores, and conducted relevant application research.By detecting the magnetic properties of the stator iron core of the motor,the differences in magnetic properties between different grades of electrical steel products and different manufacturing processes of the stator iron core can be quantified,providing guidance for the application of electrical steel products in motors and providing data as a reference for the final production and development of motors.

Key words: electrical steel, stator iron core, magnetic performance testing, magnetic measurement system