“Feedback: Still the Simplest and Best Solution”

Authors: Sigurd Skogestad,
Affiliation: NTNU, Department of Chemical Engineering
Reference: 2009, Vol 30, No 3, pp. 149-155.

Keywords: Classical control, stabilizing control, fundamental limitations, self-optimizing control, robustness

Abstract: Most engineers are (indirectly) trained to be 'feedforward thinkers' and they immediately think of 'model inversion' when it comes to doing control. Thus, they prefer to rely on models instead of data, although feedback solutions in most cases are much simpler and more robust.

PDF PDF (279 Kb)        DOI: 10.4173/mic.2009.3.5

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[1] Alstad, V., Skogestad, S., Hori, E. (2009). Optimal measurement combinations as controlled variables, Journal of Process Control, 19:138-148 doi:10.1016/j.jprocont.2008.01.002
[2] Halvorsen, I., Skogestad, S., Morud, J., Alstad, V. (2003). Optimal selection of controlled variables, Ind. Eng. Chem. Res., 4.14:3273-3284 doi:10.1021/ie020833t
[3] Havre, K., Stornes, K., Stray, H. (2000). Taming slug flow in pipelines, ABB Review, 4:55-63.
[4] Kline, R. (1993). Harold Black and the negative-feedback amplifier, IEEE Control Systems Magazine, 1.4:82-85 doi:10.1109/37.229565
[5] Maarleveld, A. Rijnsdrop, J. (1970). Constraint control of distillation columns, Automatica, 6(1):51-58 doi:10.1016/0005-1098(70)90074-9
[6] Morari, M., Stephanopoulos, G., Arkun, Y. (1980). Studies in the synthesis of control structures for chemical processes, part i, AIChE J., 2.2:220-232.
[7] Skogestad, S. (2000). Plantwide control: the search for the self-optimizing control structure, J. Proc. Control, 10:487-507 doi:10.1016/S0959-1524(00)00023-8
[8] Skogestad, S. (2004). Near-optimal operation by self-optimizing control: From process control to marathon running and business systems, Computers and Chemical Engineering, 29(1):127-137 doi:10.1016/S0959-1524(00)00023-8
[9] Skogestad, S. (2004). Simple rules for model reduction and PID controller tuning, Modeling, Identification and Control, 2.2:85-120 doi:10.4173/mic.2004.2.2
[10] Skogestad, S. Postlethwaite, I. (2005). Multivariable feedback control - analysis and design, Wiley, Chichester, 572 pp.1996; 2nd Edition.
[11] Srinivasan, B., Bonvin, D., Visser, E. (2003). Dynamic optimization of batch processes - iii, role of measurements in handling uncertainty. Comp. Chem. Eng., 27(1):27-44 doi:10.1016/S0098-1354(02)00117-5
[12] Storkaas, E. Skogestad, S. (2007). Controllability analysis of two-phase pipeline-riser systems at riser slugging conditions, Control Engineering Practice, 15:567-581 doi:10.1016/j.conengprac.2006.10.007
[13] Wiener, N. (1948). Cybernetics : or Control and communication in the animal and the machine, Technology Press, Cambridge, MA, 194 pp.

  title={{Feedback: Still the Simplest and Best Solution}},
  author={Skogestad, Sigurd},
  journal={Modeling, Identification and Control},
  publisher={Norwegian Society of Automatic Control}