How can I set some value of a global variable (used as a parameter) with genopt ?

asked 2020-01-29 14:18:36 -0500

looooic
79 ●1 ●3

updated 2020-01-30 06:43:16 -0500

__AmirRoth__

4436 ●5 ●17 http://bleedinggreenna...

Hi,

I would like to make a parametric study with Genopt to find the best parameter value of an PID to control my HVAC.

I have an ems program like that :

!- =========== ALL OBJECTS IN CLASS: ENERGYMANAGEMENTSYSTEM:PROGRAM =========== EnergyManagementSystem:Program, SET Param = 0.4, !- A28 SET Consigne = Param* HR_sum, !- A29

!- =========== ALL OBJECTS IN CLASS: ENERGYMANAGEMENTSYSTEM:GLOBALVARIABLE ===========

EnergyManagementSystem:GlobalVariable, Param, !-A1

I would like to determine the best value "Param" with genopt that minimize my humidity simulated curve with an measured humidity profile.

How can I set some value of the global variable "Param" with genopt ?

Thanks a lot

answered 2020-01-29 16:49:43 -0500

Julien Marrec

29042 ●85 ●74 http://www.effibem.com/

I'm not sure I understand what's your actual problem.

In IDF: SET Param = %param%

Then you add it as a GenOpt param in command.txt

Vary {
 Parameter{    // my EMS Global Param
    Name    = param;
    Min     = 0.1;
    Ini     = 3;
    Max     = 5.9;
    Step    = 0.2;
  }
}

Similar to the example files that GenOpt ships with, no? eg: https://github.com/lbl-srg/GenOpt/blo...

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Comments

Thank you for your reply. I simply resolved my problem.

Actually, I was working with Excalibem (write automatically the idf file and genopt file), and directly with Excalibem it was not easy to do this. But forcing %param% in the initial idf file for Excalibem turn it very easy.

Thanks.