# Need help solving power network

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#### tryipod

##### Newbie level 3 Need help solving power network (power flow analysis)

I need help on solving this problem. I spent hours, but can't find it. Thanks in advance The source voltages and impedances in the network below are in per-unit.
(a) Sketch the admittance diagram of the system and indicate all appropriate values on the diagram.
(b) Determine the bus admittance matrix
(c) Determine the voltages at each bus.

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##### Newbie level 5 (a) All you have to do here is to convert the impedances to admittance and redraw the diagram, Y(admittance) = 1/Z(impedance). Ex. j0.5 = -j2
In order to solve the remainder of the problem you need to state which method of solving the network is required, (gauss seidel, newton raphson.....)

• tryipod

### tryipod

Points: 2

#### tryipod

##### Newbie level 3 (a) All you have to do here is to convert the impedances to admittance and redraw the diagram, Y(admittance) = 1/Z(impedance). Ex. j0.5 = -j2
In order to solve the remainder of the problem you need to state which method of solving the network is required, (gauss seidel, newton raphson.....)

Thanks and yes, I figured out the first one. but the voltage part on left and right side, what should I do on the diagram?

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(a) All you have to do here is to convert the impedances to admittance and redraw the diagram, Y(admittance) = 1/Z(impedance). Ex. j0.5 = -j2
In order to solve the remainder of the problem you need to state which method of solving the network is required, (gauss seidel, newton raphson.....)

Thanks and yes, I figured out the first one. but the voltage part on left and right side, what should I do on the diagram?
I was solving it with Y11=y10+y12_y13....
to find out bus admittance matrix.

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