(24a) Lambda Tuning Methodology for Level and Other Integrating Processes
AIChE Spring Meeting and Global Congress on Process Safety
2014
2014 Spring Meeting & 10th Global Congress on Process Safety
17th Topical on Refinery Processing
Basic Process Control and Optimization
Monday, March 31, 2014 - 1:30pm to 2:00pm
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.
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2014 Spring Meeting & 10th Global Congress on Process Safety
AIChE Pro Members | $150.00 |
AIChE Graduate Student Members | Free |
AIChE Undergraduate Student Members | Free |
AIChE Explorer Members | $225.00 |
Non-Members | $225.00 |
17th Topical on Refinery Processing only
AIChE Pro Members | $100.00 |
Fuels and Petrochemicals Division Members | Free |
AIChE Graduate Student Members | Free |
AIChE Undergraduate Student Members | Free |
AIChE Explorer Members | $150.00 |
Non-Members | $150.00 |