Dear colleagues and experts, I am interested in your opinion on such an issue as the typical magnetization curve of electrical machines, the main formulation of this theory is as follows:
"The magnetization curves of all electrical machines in relative units with the same saturation coefficients are the same"
Thus, it is not possible to perform a large electromagnetic calculation but to build curves based on the saturation factor and nominal data. Do you think this theory is really applicable and what error does it give?
Dear Maksim Sitnikov,
For free space or non magnetic material as μ0 is constant, hence magnetization curve shall be a straight line (B = μ0H). From economic consideration, the design of rotating electrical machines and Transformer are based on the flux density somewhere in the saturation region.
For more details and information about this subject, i suggest you to see links and attached files on topic.
https://electricalbaba.com/concept-of-magnetization-or-saturation-curve-b-h-curve/
https://www.intechopen.com/books/analysis-of-electrical-machines/analysis-of-electrical-machines
https://www.sciencedirect.com/topics/engineering/magnetization-curve
https://www.electrical4u.com/magnetization-curve-of-dc-generator/
https://www.electronics-tutorials.ws/electromagnetism/magnetic-hysteresis.html
https://link.springer.com/content/pdf/10.1007%2F978-1-4020-4535-6.pdf
https://www.infineon.com/dgdl/Infineon-motorcontrol_handbook-AdditionalTechnicalInformation-v01_00-EN.pdf?fileId=5546d4626bb628d7016be6a9aa637e69
Best regards
Dear Mohamed-Mourad Lafifi,
Thanks for your reply!
A lot of works have been written about magnetization curves and their application, but I was interested in the application to electric machines.
Some experts in electromechanics claim that the magnetic characteristics of most electrical machines are the same in relative units (with equal saturation factors of these machines)
magnetization curves is a physical charachtrisation of ferro-magnetic materials, it is their nature. and also most of electric macheines are build from the same materials, maybe tha's the reason.
Regards
Dariani
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