PEF3006 Process Control

Automatic model adaption for air heater using LabVIEW

The logfile airheater_logfile.lvm stems from an experiment on the air heater. The file containes three colums of data:
  • Time, t [s]
  • Control signal, u [V], manipulating the heating element.
  • Pipe outlet temperature response, T_out [grader C].
The top-level VI in the LLB-file air_heater_model_adaption_brute_force_optim_240916.llb implements adaption of the following model parameters from the data in the above logfile:
  • Gain K [C/V]
  • Time-constant T [s]
  • Time-delay tau [s]
  • Environmental temperature Temp_env [C]
The teacher will run the VI in the lecture. (You can of course try it yourself, after you have downloaded both the LVM file and the LLB file.)

Updated 1 Oct 2016 by Finn Aakre Haugen, teacher. E-mail: Finn.Haugen@hit.no.