
Modern Power System Analysis with MATLAB Applications
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3. Consider the 2-bus system with base = 100 MVA, as shown in the figure. Using Newton-
Raphson method, obtain the voltage at bus 2 at the end of first and second iteration, starting
with flat start.
100 MW
50 M va
bus
V
1
= 1.0 ∠ 0°
0.12 + j 0.16
1 2
4. The figure shown below is the one-line diagram of a 3-bus power system with generation at
buses 1 and 2. The voltage at bus 1 is, V
1
= 1.0
0° per-unit. Voltage magnitude at bus 2 is
fixed at 1.05 per-unit with real power generation of 400 MW. A load consisting of 500 MW
and 400Mvar is taken from bus 3. Line admittances are marked in per-unit ...