Power 2

Bus data PU

Bus 1 Slack |V1|=1.02

Bus2 Load P=-2 Q=-0.5

Bus 3 Load |V2|=1 P3=1 |

3

1

2

3

|V1|=1.

|V3|=1.

100 MW

200MW

50MVAR

1

2

Z12

Z13

Y12/2

Y12/2

P3,Q3

P1,Q1

P2,Q2

Y13/2

Y13/2

In the system we studied in class one of the lines is removed. Both generators are set to 1 pu voltage magnitude.

Obtain the power flow solution using a) Gauss Seidel and b) Newton Raphson

Then check using power world (Files are posted)

Line data is on page 2.

Network Data

Notation

z12 is the series impedance in the equivalent pi model of line from bus 1- bus 2

y12/2 is the shunt admittance at each end in the equivalent pi model of line from

bus 1- bus 2

12

z1213i129ohmz12

z12

Zb

z120.0110.108i

pu

y121i80mhoy12y12Zb10

6

y121.1910

3

0.095i

pu

13

z132i50ohmz13

z13

Zb

z131.6810

3

0.042i

pu

y131i20mhoy13y13Zb10

6

y131.1910

3

0.024i

pu

23

z232i180ohmz23

z23

Zb

z231.6810

3

0.151i

pu

y231i70mhoy23y23Zb10

6

y231.1910

3

0.083i

pu