[TRNSYS-users] Objective function Error

[Jeff Thornton]

Bishan,

Have you considered using TrnOpt from the TESS Component Libraries?  It handles all of the difficulties associated with setting up the GenOpt file and streamlines the entire process.  You just go in, choose the variables you want to optimize, the optimization method and the parameters of the optimization, and finally the equation name or component output that you want to optimize.  It’s SO much easier than struggling with the GenOpt interface.

Jeff 

Sent from my iPhone

> On Mar 26, 2019, at 7:52 AM, Bishan Thapa via TRNSYS-users <trnsys-users at lists.onebuilding.org> wrote:
> 
> Greetings Everyone,
> 
> I am trying to optimize a solar combisystem. I believe I am not able to make genopt understand what value of objective function I want to print out and all the variables I want to print out. Therefore, i keep on getting following error which is attached herewith the email.I go over genopt manual again and again but the section which describes how genopt prints out objective function eludes me every time. I calculate the cost function inside the equation and let the type 25 print out the result and that's why my output file section in initialization file looks like this where myoutput is the name of the file that type 25 prints out its result to. 
> 
> Output {
> File1 = myoutput.out;
> Path1 = Simulation.Files.Template.Path1;
> } 
> 
> And I want to print out the results from the output file which prints out Time and LCC in two columns and specified the Name and delimiteri in two ways which I am suspicious about.
> 
> 1) First way
> THis is how TRNOPT prints out the results.
> 
> ObjectiveFunctionLocation
> {
> Delimiter1 = "Simulation Result =" ;
> Name1      = "Results";
> Delimiter2 = "Variable Value 001 =" ;
> Name2      = "D_P";
> Delimiter3 = "Variable Value 002 =" ;
> Name3      = "AREA";
> }
> 
> 2) Second Way 
> Thinking it will print out LCC at the end of time =8760 hours.
> 
> ObjectiveFunctionLocation
> {
> Delimiter1 = "TIME8760,  " ;
> Name1      = "LCC";
> Delimiter2 = "Variable Value 001 =" ;
> Name2      = "D_P";
> Delimiter3 = "Variable Value 002 =" ;
> Name3      = "AREA";
> }
> 
> 
> 
> 
> 
> 
> 
> 
> Sincerely,
> Bishan Thapa
> 
> <bejay2.PNG>
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