The purpose of the first test case is to compare the dynamic behaviourr of the model for the synchronous machine and its AVR by analysing the terminal voltage and the excitation voltage inside the machine.
The test consists of a no-load operation with a step on the voltage reference value (+ 0.05 pu) done at t = 0.1 s.
The results obtained perfectly match the results presented in the ENTSO-E report.