April 2008

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HP Control: Part 2—What happened to simple useful APC techniques?

This is the second part of my interview with Greg Martin about simple control techniques, unjustifiably retired. In this part we address single-input, single-output (SISO) predictors and simple engine..

Friedman, Y. Z., Petrocontrol

This is the second part of my interview with Greg Martin about simple control techniques, unjustifiably retired. In this part we address single-input, single-output (SISO) predictors and simple engineering calculations. Zak: SISO or multi-input, single-output (MISO) dynamic predictors can be used for comparing analyzer readings versus inference models. When a reliable analyzer exists I apply a bias correction for the inferential model to compensate for the analyzer delay. Have you seen dynamic predictors being used for that or other purposes? Greg: I have packaged SISO predictive controllers where there is a single manipulated variable (MV), a single control variable (CV) plus severa

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