Search found 15 matches

by paganini
3 months ago
Forum: Syntax
Topic: Scenario Reduction
Replies: 5
Views: 2688

Re: Scenario Reduction

Hi
I attached the modified file.
SCENRED2_example (1).gms
(11.19 KiB) Downloaded 71 times
by paganini
3 months ago
Forum: Syntax
Topic: Scenario Reduction
Replies: 5
Views: 2688

Re: Scenario Reduction

thank you a lot Aileen
and sorry for not attaching data, my bad!
thanks again for your help and support and your example code that cleared up my misunderstanding, It's very kind of you.
by paganini
3 months ago
Forum: Modeling
Topic: Scenario Reduction
Replies: 0
Views: 612

Scenario Reduction

to whom it may concern, Hi I am working on a power system with uncertainty on Loads and Photovoltaic DG. for this system, 315 scenarios have been generated and each scenario has a probability. I am trying to reduce these scenarios from 315 to 20 (or maybe 15) by using the gams tool so-called SCENRED...
by paganini
3 months ago
Forum: Modeling
Topic: scenario generation and reduction using SCENRED
Replies: 3
Views: 2520

Re: scenario generation and reduction using SCENRED

Hi Norshela
have you studied how to use SCENRED ?
I have the same problem too and unfortunately no one response
by paganini
3 months ago
Forum: Syntax
Topic: Query in Scenario reduction
Replies: 5
Views: 1767

Re: Query in Scenario reduction

yeah that's ridiculous, posts are seen but no response so what is the purpose of this forum!!!
by paganini
4 months ago
Forum: Syntax
Topic: Query in Scenario reduction
Replies: 5
Views: 1767

Re: Query in Scenario reduction

Hi I have the same problem too
could you find out the solution ???
by paganini
4 months ago
Forum: Syntax
Topic: Scenario Reduction
Replies: 5
Views: 2688

Scenario Reduction

Hello everybody, I have 315 scenarios for a photovoltaic system and trying to use gams scenario reduction function "SCENRED2" to get 20 scenarios but I don't know how to use it, I read the documentation but get confused. Here is the data of my 315 scenarios : I would appreciate it if you could help ...
by paganini
6 months ago
Forum: Modeling
Topic: CONOPT warning
Replies: 0
Views: 406

CONOPT warning

Hi everybody I'm trying to solve an AC Power Flow problem using conopt. In small cases, the problem is solved and is locally optimal but for larger cases, it becomes infeasible and the solution report shows this message: ** Warning ** The number of nonlinear derivatives equal to zero in the initial ...
by paganini
6 months ago
Forum: Syntax
Topic: how to use the data numbers in a table as a set
Replies: 0
Views: 369

how to use the data numbers in a table as a set

Hi there, this is my question: I have a table over set "nl" which is the number of lines in a power system problem and the table has two columns "f_bus, t_bus". how can I define other sets so-called " ff and tt " and take the value of "f_bus and t_bus" as the set's element? in this case I'm trying t...
by paganini
1 year ago
Forum: Modeling
Topic: Time Execution in GAMS
Replies: 2
Views: 1268

Re: Time Execution in GAMS

Dear bussieck
Thank you alot