I want to design the loss calculation model of three phase inverter and motor using the FEM Parameterized PMSM, simultaneously.

I am designing the three phase inverter having both the loss calculation of the inverter and motor.

For the motor model, i have taken from the thermal PMSM model from MATLAB examples.

While simulating i am getting an error.

An error occurred while running the simulation and the simulation was terminated

Caused by:

• ['PMSM_MOSFET_2/Solver Configuration']: At time 0.000300, one or more assertions are triggered. See causes for specific information.
• In divide, the denominator must be nonzero. The assertion comes from: Block path: PMSM_MOSFET_2/FEM-Parameterized PMSMAssert location: o (location information is protected)
• In divide, the denominator must be nonzero. The assertion comes from: Block path: PMSM_MOSFET_2/FEM-Parameterized PMSMAssert location: o (location information is protected)
• In divide, the denominator must be nonzero. The assertion comes from: Block path: PMSM_MOSFET_2/FEM-Parameterized PMSMAssert location: o (location information is protected)

Answer 1

[Sabin]

You are trying to mix blocks from two different technologies, Simscape and Specialized Power Systems. This should be avoided as you may run into solver issues. If you want to use the FEM-Parameterized PMSM block you can implement the converter using existing Simscape blocks (electrical domain blocks are blue). Check out this example as a starting point:

https://mathworks.com/help/sps/ug/pmsm-drive-thermal.html

[Kashif Habib]

Problem is still the same if i change the FEM-Parameterized PMSM. I have attached the Model before, please have a look because i want to simulate both the inverter and PMSM thermal modeling and then cool them.

[Sabin]

Your inverter is implemented with blocks from a different technology. First try to use a single technology in the model and see if that helps

[Kashif Habib]

yes, only inverter is working, if i use the simple PMSM (from Simscape) drive not the FEM-Paramterized PMSM.