Dear Prof. R D. Zemmerman,
I need a Matlab code even through Matpower of the problem of SCUC a detailed
exemple or an application on IEEE30 bus system
I thank you very much
Dr. Sebaa
very
Le mercredi 15 janvier 2020 à 00:34:06 UTC+1, Ray Daniel Zimmerman
<r...@cornell.edu> a écrit :
Unfortunately, there isn’t a simple way to do it with only linear constraints.
You could define new variables for the flows and use the opf_branch_flow_fcn()
and opf_branch_flow_hess() functions to implement an equality constraint that
defines these variables. These constraints would be very similar to the
existing inequality constraints used for branch flow limits. You could then
define linear constraints on these new variables. That might be simplest
conceptually, but you could also do it without explicitly adding the new flow
variables. That might perform better if speed is crucial.
Hope this helps,
Ray
On Jan 8, 2020, at 5:21 PM, Liang, Chen <clia...@caltech.edu> wrote:
Hello everyone,
I’m trying to solve an AC OPF with extra linear constraints on the line flows.
To be more specific, it is an equality constraint with some linear combination
of the line flows, say $\sum_{e\in E} f_e = constant$.
I read the user manual and found that branch flows are not variables used in
MATPOWER, and thus I need to add non-linear constraints (given that the
variables are node related quantities). However, the implementation of
non-linear constraints are not easy. Will there be an easier/systematical way
to implement linear constraint on line flows?
Thanks in advance. Any help is appreciated.
Best,
Chen
