Simscape Electrical, 'FEM-parametrized PMSM' block has different parameters depending on where it's found. Why is that?

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Oskar Sjökvist
Oskar Sjökvist 2019-11-28
回答： Maadhav Akula 2020-1-3
In Simscape Electrical, the FEM-parametrized PMSM has different parameters depending on where it's found. When running 'elec_import_fem_maxwell', you recieve another motor than if you place it from the library. The block found in the library is parametrized using partial derivatives of the flux linkage with regards to current and angle, but the block found when running the above specified command is parametrized using the flux linkage directly.
What are the differences, and more importantly, is any one of these obsolete and/or not working properly?
I'm running Matlab 2018b, Simulink 9.2, Simscape 4.5, Simscape Electrical 7.0.
Steps to reproduce:
  1. Run command elec_import_fem_maxwell
  2. Right-click on the 'FEM-parametrized PMSM'-block, go to 'Library link'>'Go To Library Block'
  3. Place the 'FEM-parametrized PMSM'-block from the library and open parameters for both blocks.

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回答（1 个）

Maadhav Akula
Maadhav Akula 2020-1-3
Both the blocks are the same, but there are different Block Choices available for the block, the one in the example uses ‘3-D flux linkage data’ as its choice, you can learn more about it in the link provided below:
https://www.mathworks.com/help/physmod/sps/ref/femparameterizedpmsm.html#buumfi3-3
Hope this Helps!

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