@Philip
What do you intend to achieve overall? What is the end result of your
simulation? It would help someone to advice you better.Kron reduction is
usually done for the purpose of simplifying a system for studies like transient
stability or coherent generators.Make your end-point clear so that one can know
exactly where to help.
Ben
On Monday, August 8, 2016 6:21 PM, Carlos E Murillo-Sanchez
<[email protected]> wrote:
Hmm... that is an odd question. Looking at the Kron reduction myself, I find
that there are six off-diagonal elements with positive real parts, which would
imply six "lines" in this 54 bus "network" with negative resistance. I suppose
that you could actually synthesize values for pi models that would give you the
observed coefficients in the reduced matrix, but some of the parameters would
not be physically possible.
carlos.
Philip Adedotun Olaniyi wrote:
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{}#yiv8020865503 Thank you so much sir. My next question would be, is it
possible to compute the bus and branch tables from the 54-by-54 admittance
matrix? Thank you From: [email protected]
[mailto:[email protected]] On Behalf Of Carlos E
Murillo-Sanchez
Sent: Friday, August 05, 2016 11:10 AM
To: MATPOWER discussion forum <[email protected]>;
[email protected]
Subject: Re: Ybus-matrix When you simplified away the PQ buses, you lost
the ability to specify loads in them. So, theoretically, you could perform a
load flow in which you can only have loads at the 54 generator buses. You
cannot use runpf, though, as runpf starts by building the Ybus matrix from the
bus and branch tables; it does not take Ybus as an input. You would have to
call newtonpf.m directly with suitable parameters.
carlos.
Philip Adedotun Olaniyi wrote:
Hi MATPOWER community, I asked a question earlier and would like to modify
it. I have a reduced 54-by-54 admittance matrix for case118. Can I use this as
an input in MATPOWER for my power flow analysis? How do I go about it? I would
appreciate your help. Thank you.
