Can anyone helps me with my optimization Problem.  Following are the issues :-

• I have to minimize the function TRC, i am unable to do. 
• I am unable to add a constraint with if statement. 
• Check whether i have represented I1 and I2 with respect to alpha and beta right or wrong

Attaching the sheet below, the background marked in yellow is the problem area. Thankyou

Basic_model.mw