Published On Mar 1, 2024
In this video, I go over how the field weakening technique works and a common misconception about it.
0:00 Intro
0:28 Why is field weakening needed?
1:38 How field weakening works
5:18 Field weakening misconception
7:00: Field weakening limit? Positive Id?
9:33: Field weakening motor design
References:
Most images come from a great thesis on the topic by Wen Liang Soong:
"Design and Modelling of Axially-Laminated Interior Permanent Magnet Motor Drives for Field-Weakening Applications"
Python script:
https://github.com/MatanPazi/VFD/blob...
Brushed DC motor diagram:
https://ctms.engin.umich.edu/CTMS/ind...
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