Lambda Tuning Methodology for Level and Other Integrating Processes

Developed by: AIChE
  • Type:
    Conference Presentation
  • Conference Type:
    AIChE Spring Meeting and Global Congress on Process Safety
  • Presentation Date:
    March 31, 2014
  • Duration:
    30 minutes
  • Skill Level:
  • PDHs:

Share This Post:

Tuning PID controllers for integrating processes, such as levels, can be frustrating and counterintuitive.  For example, reducing the controller proportional gain on an oscillating loop can actually increase the oscillation amplitude!   This presentation will show how to recognize an integrating process, measure the process dynamics and provide a straightforward method to calculate PID tuning parameters.  Most importantly, this method can be used to calculate controller tuning to achieve the control response that optimizes the process performance.  For example, in some cases the best process performance requires aggressive tuning with good load regulation capability.  In other cases it might require the “least aggressive” tuning that maintains a process variable (e.g. level) within the maximum allowable deviation from setpoint yet provides maximum attenuation of process variability.  This tuning method can also be applied to lag dominant or “near integrating” processes which greatly reduces the time to measure process dynamics.  Plant examples will be used to illustrate the concepts and results.

Once the content has been viewed and you have attested to it, you will be able to download and print a certificate for PDH credits. If you have already viewed this content, please click here to login.



Do you already own this?

Log In for instructions on accessing this content.


AIChE Member Credits 0.5
AIChE Members $15.00
AIChE Undergraduate Student Members Free
AIChE Graduate Student Members Free
Non-Members $25.00