In the case of CPL assumption the predicted results of
Fig.9 coincides with the results of Fig.12 where the
instability is clearly seen when 1 Nm of load torque is added
to the system at t = 2.0 sec.
The time domain simulation of Fig. 12 clearly represents the
predicted instability borderlines seen in Fig. 9. These time
domain results also show the accuracy of the generated
model in terms of stability predictions.