Disjunctive programming with Big M approach

GAMS
1

Hello Seniors and Respected Teachers,
I am trying to solve a problem with disjunctive programming using a big M approach, I tried a lot but unable to solve the model , please help me in the solution of the model with binary variables. The model is attached.

Best regards
forum.gms (4.22 KB)

2

Your exact question is not clear. Please clarify.

Is there any specific constraint that you find difficult to model? Is there a logical condition that is causing issues?
You are more likely to get help if you are specific in your question.

  • Atharv
3

Hi,
I’m not sure how it could be helpful

Try this, using
X - variable
D - Parameter or constantly
y - binary
M - BigM
i and j - the SET.

X(j)-D(i) =l= M*(1-y(i,j));