PowerWorld Simulator case Problem 11_27 duplicates the system from Problem 11.24, except the generators are modeled using a two-axis model, with the same \(X_{d}^{\prime}\)

and \(\mathrm{H}\) parameters are in Problem 11.24. Compare the critical clearing time between this case and the problem 11.24 case.

Data From Problem 11.24:-

Open PowerWorld Simulator case, which models the Example 6.9 with transient stability data added for the generators. Determine the critical clearing time (to the nearest 0.01 second) for a fault on the line between buses 2 and 5 at the bus 5 end which is cleared by opening the line.

Data From Example 6.9:-

Data From Table 6.1 and 6.2 and 6.3:-

FIGURE 11.29 Single-line diagram of a six-bus power system (per-unit values are shown) X=0.20 G. H. = 25.0 B11 G., X-0.10 H = 6.0 B21 2 B13 B12 line 1 B22 B23 X = 0.05 www line 3 X, -0.10 line 2 5 line 5 X = 0.025 X = 0.10 B51 852 line 4 X = 0.025 www www B31 B32 B53 841 B42 3 P=1.0 4 Q=201 P = 3.0 Q=0.3 Q-09 Ine 6 X = 0.05 P-2.C X-0.10 -3.0 261 6 B62