hi i have a function with 5 constraints , i need someone to help me write the 5th one

hi, am having an issue with a new constraint that was added to the code;

|Sk-Sk-1|>Delta SOCmin

Sk-Sk-1=dx

Sk-1-Sk=ds

DeltaSOCmin=0.2

For the first cosntraint of line 345 the code was performing normally,the problem is when adding this new constraint (line 349) the results are violation of constraint and the function F is returning Inf .The question is if it should be written another way or what are the changes that should be done to avoid violation , thanks

Answer 1

[Divyajyoti Nayak]

Hi Anwar,

If your constraint is |S[k] - S[k-1]| > dSOCmin then the condition in the if statement should be

if any(abs(dx)<=dSOCmin | abs(ds)<=dSOCmin)

But this won't avoid the violation, as atleast one of the absolute values is less than dSOCmin.

I don't think the code is the problem but rather the values calculated in dx and ds.

[Anwar]

Hi Divyajyoti,

this is an optimisation algorithm of EV states of charges;the values of dx and ds varries between 30 to 70, and they should respect the boundries by not being above 40 (SOCmax) and not under 20 (SOCmin),and geuss what the algorithm works perfectely without any violation of both conditions without mentionning the second constraint (if any(abs(dx)<dSOCmin | abs(ds)<dSOCmin) and the moment mentionning it in the code the algorithm start giving values of 10 AND 15 for the abs (ds) and the result is a violation (INF F)

[Divyajyoti Nayak]

Hey Anwar,

Could you give the code you are working with so that I may reproduce the issue at my end?