Environment & Safety Gas Processing/LNG Maintenance & Reliability Petrochemicals Process Control Process Optimization Project Management Refining

Lee, Y.

GS-Caltex Corp., Yeochon, Korea

Implement a constrained optimal control in a conventional level controller - Part 2

LG Chem, Ltd.: Lee, J. W.
GS-Caltex Corp.: Lee, Y.
LG Chem.: Shin, J.

Novel tuning method enables a conventional PI controller to explicitly handle the three important operational constraints of a liquid level loop in an optimal manner as well as copes with a broad range of level control from tight to averaging control

Consider the generalized IMC-PID method for PID controller tuning of time-delay processes

Yeungnam University: Lee, M.
GS-Caltex Corp.: Lee, Y.
KAIST: Park, S.

This simple analytical method provides PID parameters to give a desired closed-loop response while available for any class of time-delay processes

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