370.084 Magnetic bearings technology
This course is in all assigned curricula part of the STEOP.
This course is in at least 1 assigned curriculum part of the STEOP.

2024S, VO, 2.0h, 3.0EC

Course evaluation


  • Semester hours: 2.0
  • Credits: 3.0
  • Type: VO Lecture
  • Format: Presence

Learning outcomes

After successful completion of the course, students are able to

  • describe the force generation of active magnetic bearings.
  • choose bearing types for defined applications.
  • understand the basic concepts of robust control.
  • design a controller for a rigid or flexible magnetically levitated high-speed rotor.
  • design an unbalance compensation for an active magnetic bearing system.
  • understand the basic concept of self-sensing magnetic bearings.

Subject of course

  • Overview of magnetic bearings: Passive and active magnetic bearings, electro dynamic bearings.

The remaining part of the course deals mainly with active magnetic bearings.

  • Fundamentals of active magnetic bearings: Earnshaw-Theorem, components of an active magnetic bearing system, force generation, bearing topologies.
  • Basic concepts of robust control: Transfer matrices of control structures, Bode's sensitivity integral, singular value decomposition, H∞-control, µ-synthesis.
  • Control of magnetically stabilized rigid rotors: Modelling of the system, control of the axial movement, control of the radial movement, decentralized control, decoupled control, control using circular forces.
  • Control of magnetically stabilized flexible rotors: Finite element method based modelling, possible control approaches.
  • Unbalance compensation: Methods of unbalance compensation, design of an unbalance compensation.
  • Position sensors for magnetic bearings and self-sensing magnetic bearings.

Teaching methods

The contents of this lecture are elaborated and discussed based on lecture notes. Simple exercises are solved on a blackboard, Complex exercises are solved computer algebra software.

Mode of examination




Course dates

Tue14:00 - 17:0016.04.2024 Zoom Link wird über die Tiss-News ausgesendet. (LIVE)Vorlesung

Examination modalities


Course registration

Begin End Deregistration end
26.02.2024 10:00 29.06.2024 10:00 31.05.2024 10:00


Study CodeObligationSemesterPrecon.Info
066 503 Electrical Power Engineering and Sustainable Energy Systems Mandatory elective


Die Vorlesungsfolien werden nach der jeweiligen Vorlesung hochgeladen.

Die meisten Inhalte der Vorlesung sind in folgendem Buch zu finden:

G. Schweitzer, E. Maslen: Magnetic Bearings: Theory, Design, and Application to Rotating Machinery, ISBN: 978-3-642-00497-1.

Für die rotordynamischen Grundlagen wird auf die LVA "370.083 Dynamik rotierender Maschinen" und das zugehörige Skriptum verwiesen.

Previous knowledge

A basic knowledge of the course "LVA 370.083 Dynamics of Rotating Machines" is recommended.

Preceding courses

Accompanying courses