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EL2620 Nonlinear Control 7.5 credits

This course addresses analysis and control of nonlinear dynamical systems, which arise naturally in engineering, natural sciences, and society. We will explore how nonlinear models are formulated, analyzed, simulated, and controlled, with examples drawn from mechanics, robotics, biological and epidemiological systems, and networked systems such as social and opinion dynamics.

The course emphasizes both theoretical foundations and practical modeling insight, preparing students to work with complex systems where linear approximations are insufficient.

Information per course offering

Termin

Information for Autumn 2026 Start 26 Oct 2026 programme students

Course location

KTH Campus

Duration
26 Oct 2026 - 11 Jan 2027
Periods

Autumn 2026: P2 (7.5 hp)

Pace of study

50%

Application code

11068

Form of study

Normal Daytime

Language of instruction

English

Course memo
Course memo is not published
Number of places

Min: 1

Target group
Open for all programmes as long as it can be included in your programme.
Planned modular schedule
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Schedule
Schedule is not published

Contact

Examiner
No information inserted
Course coordinator
No information inserted
Teachers
No information inserted

Course syllabus as PDF

Please note: all information from the Course syllabus is available on this page in an accessible format.

Course syllabus EL2620 (Autumn 2026–)
Headings with content from the Course syllabus EL2620 (Autumn 2026–) are denoted with an asterisk ( )

Content and learning outcomes

Course contents

The course covers control theory for nonlinear dynamic systems, including:

- analysis of input and output stability, for example with the low-gain theorem and the circle criterion

- stability analysis of equilibrium points through linearization and Lyapunov methods

- analysis of stability of passive systems

- design and analysis of closed-loop control for nonlinear systems through linearization, feedback linearization and Lyapunov-based methods

- design and analysis of sliding mode control

- observers for nonlinear systems

- setpoint control and setpoint tracking

- simulation of nonlinear dynamic models, including examples from several scientific applications.

Intended learning outcomes

After passing the course, the student should be able to:

1. model and analyze nonlinear dynamic systems that arise in engineering and applied scientific fields, such as mechanics, robotics, biological or epidemiological systems, and network systems, using appropriate mathematical representations and stability concepts

2. apply methods for nonlinear control systems and observer design – including Lyapunov-based methods, feedback linearization, passivity, and high-gain control and sliding mode control – to analyze stability and achieve desired control or management

3. use simulation tools to evaluate the behavior of nonlinear systems and control solutions, and critically reflect on model assumptions and limitations and communicate conclusions.

Literature and preparations

Specific prerequisites

Knowledge in control engineering 6 credits corresponding to completed course EL1000/EL1010/EL1020/EL1110/EL1120.

Literature

You can find information about course literature either in the course memo for the course offering or in the course room in Canvas.

Examination and completion

Grading scale

A, B, C, D, E, FX, F

Examination

  • INLA - Homework, 2.5 credits, grading scale: P, F
  • INLB - Home work, 2.5 credits, grading scale: P, F
  • TENT - Written exam, 2.5 credits, grading scale: A, B, C, D, E, FX, F

Based on recommendation from KTH’s coordinator for disabilities, the examiner will decide how to adapt an examination for students with documented disability.

The examiner may apply another examination format when re-examining individual students.

If the course is discontinued, students may request to be examined during the following two academic years.

Examiner

Ethical approach

  • All members of a group are responsible for the group's work.
  • In any assessment, every student shall honestly disclose any help received and sources used.
  • In an oral assessment, every student shall be able to present and answer questions about the entire assignment and solution.

Further information

Course room in Canvas

Registered students find further information about the implementation of the course in the course room in Canvas. A link to the course room can be found under the tab Studies in the Personal menu at the start of the course.

Offered by

Main field of study

Electrical Engineering

Education cycle

Second cycle

Transitional regulations

The expiration module LABA can be examined through new module INLA.

The expiration module lab can be examined through new module INLB.

The expiration module LABC can be examined through new module INLB.

The expiration module TENA can be examined through new module TENT.

Supplementary information

Replaces 2E1262.

In this course, the EECS code of honor applies, see:
http://www.kth.se/en/eecs/utbildning/hederskodex.