search

sharnett / jabr-power-flow

A Python implementation of a conic programming formulation to the power flow problem on tree networks, as described by Rabih Jabr.
MIT License
7 stars 4 forks source link

bus 38 in case118_v2 is being a bastard #8

Closed sharnett closed 10 years ago

sharnett commented 10 years ago

Newton and Jabr aren't matching, something like .97 vs .94. Try tightening the tolerances on both, Jabr first, to see what happens.

sharnett commented 10 years ago

Looks like after changing the initial angle at the reference bus from 30 degrees to 0, things worked themselves out.

sharnett commented 10 years ago

Erroneous, forgot to take absolute value.

sharnett commented 10 years ago

Check the power flow equations around that bus for both solutions. Are they both actually right? Is that possible? Tightening tolerances doesn't help. Starting newton from the jabr solution doesn't change newton's mind. Maybe try that the other way.

sharnett commented 10 years ago

Shame on me. Tap ratios got me again. This is the last time I will be bested by tap ratios