PowerWorld Simulator case Problem 11_28 duplicates Example 11.11 except the wind turbine generator is set so it is initially supplying \(100 \mathrm{MW}\) to the infinite bus at unity power factor. A) Use the induction machine equations to verify the initial conditions of \(\mathrm{S}=-0.0129, E_{r}^{\prime}=0.8475, E_{i}^{\prime}=0.4230, I_{r}=0.8433, I_{i}=0.7119\). B) Plot the terminal voltage for the fault sequence from Example 11.6.

Data From Example 11.11:-

Data From Example 11.3:-

Data From Example 11.6:-

Figure 11.4:-

Figure 11.24:-

For the system from Example 11.3, assume the synchronous generator is re- placed with an induction generator and shunt capacitor in order to represent a wind farm with the same initial real and reactive power output as in Exam- ple 11.3. The induction generator parameters are H = 0.9 per unit-seconds, Ra = 0.013, X = 0.067, Xm = 3.8, R = 0.0124, X = 0.17 (all per unit using the 100 MVA system base). This system is modeled in PowerWorld Simula- tor case Example 11_11 (see Figure 11.24). (a) Use the previous equations to verify the initial conditions of S = -0.0111, E, = 0.9314, E = 0.4117, I, = 0.7974, I; = 0.6586. (b) Plot the terminal voltage for the fault sequence from Example 11.6.