Question 3.3: In Simulink, develop a simulation of the induction machine d......
In Simulink, develop a simulation of the induction machine described in Example 3-1 operating in steady state as specified in Example 3-1. At t = 0.1 seconds, the load torque T_L suddenly goes to one-half of its initial value and stays at that level. Assume θ_{da}(0) = 0 and a synchronously rotating dq reference frame. Plot the electromagnetic torque developed by the motor and the rotor speed as functions of time.
The Simulink file EX3_3.mdl included on the accompanying website follows the block diagram in Fig. 3-12. Prior to its execution, initial conditions for the flux linkages, the rotor speed, and the load torque must be calculated either by executing the file for Example 3-1 (EX3_1.m) or for Example 3-2 (EX3_2.m) by double clicking on the start icon shown in the schematic of Fig. 3-13. The resulting waveforms are plotted in Fig. 3-14.
