Hello madam or sir
I have two emergency questions; would you please answer me,
QUESTION 1:
Where I can find below information for IEEE 118 bus test case
PMIN, PMAX, GENCOST for generators
Capacity of lines and transformers
Whether capacitors are switchblade or fixed. Number of steps
I looked at
http://www.ee.washington.edu/research (file:ieee118cdf)
Matpower3.1b2 file: case118.m
But they didnt involve the correct value
QUESTION 2:
I think there is a bug in modeling phase shifters and trans in
Matpower3.1b2
Power flow, I guess the problem is in file: makeYbus.m at line 44
The correct is:
tap=tap.*exp(+j*pi/180 * branch(:, SHIFT));
please check the following example:
make below network and run runpf
bus = [1 3 0 0 0 0 1 1 0 135 1 1.1 0.95;
2 1 21.7 12.7 0 0 1 1 0 135 1 1.05 0.95];
gen = [1 23.54 0 150 -20 1 100 .8 80 0];
phase shift
branch = [1 2 0 0.06 0 130 130 130 1 10 1];
areas = [1 1];
gencost = [2 0 0 3 0.02 2 0];
the result would be
Bus Voltage Generation
# Mag(pu) Ang(deg) P (MW) . . .
----- ------- -------- --------
1 1.000 0.000 21.70 . . .
2 1.244 9.520 -
In the result bus2 precede bus1 by about 10 degree and has bigger magnitude
I think its a bug, is my guess true?
I think bus1 must precede bus2 by about 10 degree and has bigger magnitude
because bus1 is tap side .and TAP=VF(from bus)/VT(to bus)
Do you know another test system suitable for voltage stability studies and
have above details. from where I can obtain it?
Im looking forward hearing from you.
Best regards
Bye
Iman tabatabaie email:[email protected]
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