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Modeling the brushless motor

Posted by Tom Yochum on May 22, 2009 at 7:52am

I am trying to put together a Simulink 6-DOF model of a complete UAV. I have the aerodynamic data for the Rascal UAV from this paper. The only thing left to model is the electric motor. I need to create a model that takes in the throttle setting and outputs the current draw, rotation speed, and motor torque. I found some papers on the math of an AC motor, but I couldn't make heads or tails of it. Does anyone know of a good paper that outlines the math? Or better yet, a free Matlab or Simulink model?Thanks.

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Comments

Tom Yochum May 22, 2009 at 10:26am

Thanks for the replies! I knew you guys would know where to look.
abey May 22, 2009 at 9:24am

This guy made a whole PhD on this and related topics. You might be able to obtain a PDF directly from him, or find info in the listed papers...

http://asl.epfl.ch/index.html?content=member.php&SCIPER=128973
Varga András May 22, 2009 at 8:18am

BLDC fundamentals:http://ww1.microchip.com/downloads/en/AppNotes/00885a.pdf
simulink: http://www.mathworks.com/matlabcentral/fileexchange/5042
Varga András May 22, 2009 at 8:10am

Maybe: http://fuzzysys.hu/files/16_nopass/bldc_article.doc

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