About the Institute

The Institute of Electrical Machines, Traction and Drives was founded in 1920, making it one of the oldest research institutes of TU Braunschweig. For decades, work focused on the electromagnetic design of electrical machines. Today this field is supplemented by the topic of power electronics, so that comprehensive research and teaching on energy conversion can be carried out at IMAB.

Electric Drive Systems (Prof. M. Henke)

The scientific work in the field of electric drives is characterised by an increasing integration of electrical engineering, mechanical engineering and information technology (industry 4.0). The focus of research is on electrical machine design and machine control for traction drives in electromobility, which are being worked on within the framework of cooperation projects in the NFF (Niedersächsisches Forschungszentrum Fahrzeugtechnik), as well as inductive charging and energy efficient industrial drive technology. The trend towards increasing power density in small space does not only result in new approaches for the design of electrical machines and their magnetic circuits, but also requires a strong interdisciplinary orientation of the work. We build machine prototypes and validate the designs on powerful test rigs in the IMAB lab.

Power Electronics (Prof. R. Mallwitz)

The use of renewable energy sources and the electrification of vehicles require efficient power electronic solutions. These new fields of application influenced the area of power electronics intensively. In the future these fields will further evolve and require sophisticated power electronic units. Also new materials and power electronic components like so called wide bandgap materials silicon carbide and gallium nitride enable further increases in efficiency and power density. The use of these new materials introduces new challenges and requirements regarding design, commutation loops and driver circuitry, sensor design and control techniques and the thermal design. The scientific challenges are the evaluation and design of highly efficient and compact and power dense converters for new applications which increasingly demand for interdisciplinary solutions.

The institute not only works with scientific partners, e.g. in fields of control, semiconductor technology, mechanical engineering and fluid mechanics, but also maintains close relationships with many industrial partners in Europe and several large national research organizations such as PTB and DLR.

In addition, the institute is a member of

NFF (Niedersächsisches Forschungszentrum Fahrzeugtechnik); Head of the research field Electromobility

ECPE (The Industrial and Research Network for Power Electronics in Europe)

efzn (Energieforschungszentrum Niedersachsen); Energy research of the efzn at TU Braunschweig

ITS automotive north e. V. (Association of scientists from different fields active in the transport sector)

The work in research and teaching at IMAB is carried out by
• 2 active university professors
• 2 retired university professors
• 1 senior engineer
• 18 PhD students
• 7 employees in technology and administration

Furthermore, the IMAB has a workshop equipped with state-of-the-art production facilities, state-of-the-art test rigs for the measurement of power electronics and electrical machines as well as extensive laboratory and experimental equipment.

Main research fields:

  • Electromechanical energy converters
    • force feedback devices
    • linear actuators and transducers
  • Innovative machine conceptsfor
    • high torque machines
    • high speed machines
    • application of superconductors for magnetic bearings
  • New transportation technologies
    • linear drives
    • contactless linear bearings
    • power conditioning for train drives
  • Numerical methods
    • Finite Different Method (FDM) and
      Finite Element Method (FEM) applications
    • optimisation of machines
    • system dynamics simulation
  • Power conditioning and power electronics
    • definition and design of machine specific inverter circuits
    • power supply / energy storage
    • flywheel energy storage systems
    • contactless power transfer

  last changed 12.03.2019
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