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

Hydrocarbon Processing / February 2010
LG Chem, Ltd.: Lee, J. W.
GS-Caltex Corp.: Lee, Y.
LG Chem.: Shin, J.
Process Control

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

HP Control: Back to the future: Process control in 2010

Hydrocarbon Processing / February 2010
Tesoro Corp.: Kern, A.G.
Process Control

Where will process control money be spent in 2010? The choices include field instruments, safety systems (SISs), control system upgrades (DCSs), multivariable predictive control (MPC) and decision-sup..

HP Integration Strategies: Control in the field enables high-availability control

Hydrocarbon Processing / February 2010
ARC Advisory Group: O'Brien, L.
Process Control

Replacing analog 4-20 mA technology with a digital network was a major driver behind developing FOUNDATION fieldbus technology. However, what really differentiates FOUNDATION fieldbus from Profibus PA..

Implement a constrained optimal control in a conventional level controller - Part 1

Hydrocarbon Processing / January 2010
LG Chem, Ltd.: Lee, J. W.
Yeungnam University: Lee, M.
LG Chem.: Shin, J.
Process Control

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

Fine tune accuracy in analytic measurement - Part 3

Hydrocarbon Processing / December 2009
Swagelok Company: Nordstrom, D.  |  Waters, T.
Process Control

Follow these steps to avoid compromising a sample

HP Control: More on APC designs for minimum maintenance

Hydrocarbon Processing / December 2009
Tesoro Corp.: Kern, A.G.
Process Control

Perhaps Zak Friedman struck the perfect balance in his series of editorials,1 because while Dr. Latour thinks Zak went too far in his suggestions to prune multivariable control (MPC) matrices,2 I woul..

Fine tune accuracy in analytic measurement - Part 2

Hydrocarbon Processing / November 2009
Swagelok Company: Nordstrom, D.  |  Waters, T.
Process Control

Follow these recommendations for correct analyzer calibration

HP Control: APC for min maintenance or max profit? - Part 2

Hydrocarbon Processing / November 2009
Clifftent Inc.: Latour, P. R.
Process Control

While I have promoted proper control system performance indicators18–25 since 1964, like Dr. Y. Zak Friedman,1 I also am aware of some deeper problems with realizing its full commercial potential..

Practical process control system metrics

Hydrocarbon Processing / October 2009
Tesoro Corp.: Kern, A.G.
Process Control / Information Systems

Here are several useful examples

Agile supply chain planning

Hydrocarbon Processing / October 2009
M3 Technology: Acuff, C.  |  Jasper, D.
Chevron Corp.: Thomas, C.  |  Tong, D.
Process Control / Information Systems

Providing a common workspace improves data integration