Warning: Solver not applicable (gurobi)

[ellensonny]

hello Prof,
Power balance constraints:

and there is part of my codes:

but the result says like "Warning: Solver not applicable (gurobi)".Doesn't my code correctly express the constraints of the mathematical model? If so,how to solve it? Thanks for your reply.

[johanlofberg]

you are using trigonometric functions which gurobi doesn't support

[ellensonny]

So how to solve this problem generally ,Prof? Modify the mathematical model to eliminate trigonometric functions, or change to a suitable solver?

[johanlofberg]

A better model is always best of course.

I don't think there is any other global solver in YALMIP except the built-in bmibnb to handle everything in the model. Hence, very very hard and likely not possible to solve

[ellensonny]

ok.Thank you very much for reply.