Newton-Raphson Power Flow Algorithm II. Lecture #21 EEE 574 Dr. Dan Tylavsky. During the last lecture, you (we) derived the functional form of the Jacobian entries:.
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Dr. Dan Tylavsky
Jacobian is close diagonally dominant and it is not surprising that no pivoting is required.
Changing the order of the eqn’s or variables will destroy the near diagonal dominance property.
All line charging susceptances
are given by j0.02
Read Input, Construct Y following power system assuming bus 1 is the slack bus, all bus voltages are approximately 1/bus
Assume Flat Bus Voltage Profile E=1/00
Assume Gen’s not on VAR limits.
Update Bus Voltage Vq+1=Vq+Vq, q+1= q+ q
Calculate Line Flows, Gen. Power and Mismatches
Perform bus type switching
Calculate Jacobian Entries and Solve Mismatch Eqn.
Determine optimal ordering for minimal fill. Permute input data.
Read following power system assuming bus 1 is the slack bus, all bus voltages are approximately 1/
Initial Estimate of
Main Steering Routine