Hi Ankit,
As a possible solution to get rid of the errors in the model you can consider the following steps-
- Connect the neutral of the BLDC motor to the electrical reference.
- Inside the “sensor subsystem1” connect the terminal C of the ideal rotational motion at an appropriate location.
- Within the solver configuration block, check the “Start Simulation from Steady State” option.
Once the model is compiled you can check whether the output values are as expected from the model. I have attached the model with the given changes made.