Figure 1 shows the network diagram of a 132kv power system

Question

Figure 1 shows the network diagram of a 132kV power system. The network has three buses and two generating units. The loads of (l.O+jO.35) pu and (3.2+J1.2) pu are connected at bus 2 and 3 respectively. The generator connected at bus 2 injects 1.2 pu of active power.

V,=i.042

S =  3.2+ j1.2

Figure 1:132kV system - all values are given in pu with V_b=132kV and S_b=100MVA

(a) Perform two, Newton-Raphson method based, load flow iterations (without using computer simulations). Calculate voltage at each bus and power losses of the system in actual units. Clearly show the load flow calculation steps.

Perform two, Fast Decoupled method based, load flow iterations (without using computer simulations). Calculate voltage at each bus and power losses of the system in actual units. Clearly show the load flow calculation steps.