While connecting a Simplified Synchronous machine pu units with a three phase transformer, I am facing an error (Attached Screenshot).

I tried to fix this error by adding a load in parallel between these two blocks. My issue is not yet resolved. Its throwing the same error.Any suggestions to fix this?

Answer 1

[Sabin]

Nonlinear models implemented as a current source cannot be connected in series with an inductor, another current source, or an open circuit. Such circuit topologies cause errors in Simscape Electrical Specialized Power Systems.

Similarly, if your nonlinear model uses a Controlled Voltage Source block, this model could not be short-circuited or connected across a capacitor.

To be able to simulate this circuit, you must provide a current path around one of the two nonlinear blocks. You could, for example, connect a large resistance, say 1 MΩ.