Hi Jose,
the link you posted helps a lot, I've been working on this issue these days.
Earliear I also found a paper about the difference between transformer
model of Netomac and matpower, it shows something simuliar to this
psse transformer modeling issue. Since that paper was published 15
Certainly, testing with a small system is the only way to find out what the
internal model *really* is (since you can't inspect the code in this
case). Anyway, I would add another suggestion: export from Netomac to
PSS/E RAW format, and inspect the transformer records very carefully. Read
the
Dear Shuo,
I'd try to simulate a simply network with 1 reference bus with 1
transformer and 1 subsequent load to test the behaviour between Matpower
and netomac.
I'm not used to netomac, so can't help here directly.
Nice regards,
Chris
2016-05-10 13:22 GMT+02:00 Shuo Chen
Dear Chris,
thanks for your reply, actually we are getting the same transformer
data. In my power system uk is far more larger than ur (more than
50:1), so it can be assumed that ux = uk.
i'm wondering whether there is any little difference between netomac
and matpower by modeling the
Dear Shuo Chen,
I'm used to similar data and calculate r and x as (ur, uk in p.u., base_MVA
and S_transformer in MVA):
- r = ur * base_MVA / S_transformer
- x = sqrt(uk^2 - ur^2) * base_MVA / S_transformer
- ratio = 1 (in your case, where rated = nominal voltage)
- angle = 0 (in your case,
Dear Ray and matpower users,
i'm writing my thesis about a data-converter for two power system
simulation softwares: PSSE@Netomac from Siemens and matpower. Here is
a problem with transformer modeling, i've read a lot in this archive
but still can't solve it, so i decide to post my
