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Comsol 4.3 with Matlab - ACDC Rotating machinery - Identity Pair
Posted 27 mai 2013, 15:36 UTC−4 Version 4.3 3 Replies
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this is the very first time I open a new thread.
I want to share (and I hope to solve) the problem which is afflicting me when I try to run a time dependent problem using Matlab 2012.
I am performing a 2D geometry optimization on a small permanent magnet synchronous motor: I followed the guide in the geometry declaration (especially the identity pair in the middle air gap surface between stator and rotor unions and the continuity along the surface).
I managed to perform both stationary and time dependent simulation, everything seems ok
BUT
when I launch the simulation with matlab I encountered the a problem:
the following strings
model.pair.name('List');
model.pair('ap4').name('Identity Pair 4');
model.physics('rmm').feature('cont1').set('pairs', 'ap4');
cause an error called something like "java error"
Since I do not know Java I wondered if anybody could help me.
Thanks in advance,
Andrea
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model.pair.name('List');
model.pair('ap4').name('Identity_Pair_4');
Run the single simulation ..
The following error message appears on Matlab prompt:
Error using com.comsol.model.impl.ModelImpl/pair
Java exception occurred:
Exception:
com.comsol.util.exceptions.FlException: Unknown pair
Messages:
Unknown pair
- Tag: ap4
Stack trace:
at com.comsol.model.internal.impl.ModelEntityImpl.a(Unknown Source)
at com.comsol.model.internal.impl.ModelImpl.h(Unknown Source)
at com.comsol.model.internal.impl.ModelImpl.pair(Unknown Source)
at com.comsol.model.impl.ModelImpl.pair(Unknown Source)
Error in internal_call_Comsol_prova (line 366)
model.pair('ap4').name('Identity_Pair_4');
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I am new to COMSOL, I am trying to build PM synchronous machine model in comsol but encountered some problems. I dont know how to define AC excitation to stator coils, could you please help me or share your model with me so that I can see how you did synchronous machine modeling in comsol. I shall be very thankful.