00:01
Hi, this is a question based on solving the power flow using gauss -seidel method.
00:11
So here, this is a iterative method where convergence is achieved.
00:16
So here we have bus 1 is at v is equal to 1 .05 pu and bus 3 is at v is equal to 1 .04 pu.
00:27
So p value is given as 200 megawatt and load, so bus 2 load minus p is equal to 400 megawatt and we have q value is given as 250 mvar.
00:42
Then we have the line impedance.
00:44
So line impedance per unit is given by, so bus 2 to 4 is equal to 0 .02 plus j 0 .04 and from bus 3 to 4 we have 0 .01 plus j 0 .03 and from bus 1 to 2 we have 0 .0125 plus j 0 .025.
01:15
Now, by using gauss -seidel method, we have, so angle, so we have angle for all buses, so angle for all bus is chosen as 0 degree for simplicity.
01:28
So then we have bus 1 is equal to, so initial we have v1 is equal to 1 .05 pu, then we have initializing the condition 1 .02, so pu and we have v3 is equal to 1 .04 pu.
01:44
Now we have to calculate the apparent power...