Question 2:

Assume the 3 bus power system shown below. Assume all lines have the same reactances and

their capacity limits are shown in red,

Busl

150MW

↓

250MW

Bus2

400 MW

Bus 3

GA

a): Can 500MW be delivered from bus 2 to bus 3? If not what is the maximum power that can be

transferred

b): Assume price of generation at generator A(Ga) is $1/MWH. Now a new generator is installed

at bus 3(generator B) which has price $2/MWH. Given capacity limits, what is the minimum cost

of meeting 500MW at bus 3