Sigurd Skogestad Professor
Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), N7491 Trondheim, Norway

[A picture of Sigurd Skogestad June 2026]

Start here...

About me - CV - Powerpoint presentations - How to reach me - Email: skoge@ntnu.no
Teaching: Courses - Master students - Project students - New Master projects
Research: Publications - My Group - Research - Ph.D. students - Academic tree
"The overall goal of my research is to develop simple yet rigorous methods to solve problems of engineering significance"
"We want to find a self-optimizing control structure where close-to-optimalo operation under varying conditions is achieved with constant (or slowly varying) setpoints for the controlled variables (CVs). The aim is to move more of the burden of economic optimization from the slower time scale of the real-time optimization (RTO) layer to the faster setpoint control layer. More generally, the idea is to use the model (or sometimes data) off-line to find properties of the optimal solution suited for (simple) on-line feedback implementation"

[A picture of Sigurd Skogestad]

"News"...

August 2026 : Photos from IFAC World Congress in Busan.
Aug. 2023: Tutorial review paper on "Advanced control using decomposition and simple elements". Published in Annual reviews in Control (2023). [paper] [tutorial workshop] [slides from Advanced process control course at NTNU]
June 2026 (ESCAPE-36 in Sheffield): Sigurd receives George Stephanopoulos Award . [slides, photos]
Aug. 2026 (IFAC World Congress): "Advanced PID architectures for tracking changing active constraints" - including happy cows case study . [paper and Simulink]
February 2026: Ratio control: Theoretical basis and practical implementation (Journal of process control, 2026). Finally: The first theoretical treatment on when and how to use ratio control
November 2025 Advanced PID control as agents for the future (video). Informal presentation (20 min) by Sigurd at Departnent of Engineering Cybernetics, NTNU
16 June 2025 Workshop on advanced regulatory (PID) control (slides) (S. Skogestad and K. Forsman) DYCOPS conference, Bratislava
2024: Recent work on feedback-based optimization from the PhD theses of Lucas Bernardino and Risvan Dirza. This is very interesting and has a lot of potential, I think.
13 June 2024: "PID is the future of advanced control". Plenary lecture IFAC PID-2024 conference, Almeria, Spain [Slides]
03 May 2024: "Putting optimization into process control". Invited lecture at STU, Bratislava, Slovakia. [Youtube video] [Slides]
Oct. 2023: Workshop on dividing-wall distillation (with presentations), Trondheim
05 Jan. 2023: Tutorial paper on "Transformed inputs for linearization, decoupling and feedforward control" published in Journal of Process Control (JPC). [paper] This is an amazingly effective and simple approach - it is used in practice - and here is its theoretical basis
OLD NEWS

Books...

Book: S. Skogestad and I. Postlethwaite: MULTIVARIABLE FEEDBACK CONTROL-Analysis and design. Wiley (1996; 2005)
Book: S. Skogestad: CHEMICAL AND ENERGY PROCESS ENGINEERING CRC Press (Taylor&Francis Group) (Aug. 2008)
Bok: S. Skogestad: PROSESSTEKNIKK- Masse- og energibalanser Tapir (2000; 2003; 2009).

More information ...

[A picture of Sigurd Skogestad]

Publications from my Google scholar site
Download publications from my official publication list ....... or look HERE if you want to download our most recent and upublished work
Important publications from other authors
International conferences - updated with irregular intervals
Proceedings from conferences - some of these may be difficult to obtain elsewhere
ESCAPE history - Please send corrections if something is missing or wrong
Process control library - We have an group extensive library
Photographs that I have collected from various events (maybe you are included...)
SUBPRO (NTNU center on subsea production and processing) [ Annual reports ] [ Internal ]
Nordic Process Control working group - in which we participate
5-year Master program in Chemical and Biochemical Engineering at NTNU (MTKJ) - Sigurd Skogestad is Program Leader 2019-2025.
Debattinnlegg - Things I have written that are unrelated to chemical engineering
PROST - Our activity is part of PROST - Center for Process Systems Engineering at NTNU and SINTEF (this is a bit outdated...)

Some software we have written ...

Dynamic MATLAB distillation models (+ general stuff on distillation)
Dynamic MATLAB and Fortran model of industrial ammonia reactor
Other own Matlab software
Software from other sources
Some old deleted stuff


Created: 04 Nov 1995.