Prof Markus Mueller




+44(0)131 6505602


3.104 Faraday Building

Engineering Discipline: 

  • Electronics and Electrical Engineering

Research Institute: 

  • Energy Systems

Academic Qualifications: 

  • BSc(Eng) 1988 Imperial College, London
  • PhD 1991 Electrical Engineering, University of Cambridge

Professional Qualifications and Memberships: 

  • CEng Chartered Engineer
  • MIEE Member of the Institution of Electrical Engineers
  • MIEE Member of the Institution of Electrical and Electronics Engineers

Research Interests: 

Design of Novel Electrical Machines

The design of novel generator topologies for direct drive wave energy, wind energy and tidal current energy converters is my main area of research.

There are both electrical and mechanical challenges to overcome. Low speed machines will be physically larger and heavier than conventional high speed generators. Novel machine topologies using permanent magnets (PM) have been developed, which exhibit high power density, such as the transverse flux machine and the vernier hybrid machine. I have done work with both of these machine topologies. However, these machines suffer very large magnetic attraction forces requiring a significant mechanical structure to maintain a physical airgap. Air-cored machines eliminate the unwanted magnetic attraction force leading, but exhibit a much lower force density. However, the elimination of the attraction force has the potential to lead to a lighter mechanical structure. An air-cored tubular permanent magnet machine has been designed and currently a novel air-cored machine which makes more effective use of the magnetic material in the machine compared to the tubular machine.

The influence of the electrical design on the mechanical design and vice versa forms the main thrust of my research into low speed electrical machines. In order to generate the optimum machine design such an integrated approach must be adopted.

Further details of current and completed research projects may be found at


  • Direct Drive Wave, Wind & Tidal Energy Systems
  • Design and modelling of electrical machines
  • Electrical machines for renewable energy applications
  • Low speed electrical generators for wave, wind and tidal energy converters
  • Actuators for solar powered pumps
  • Permanent magnet and switched reluctance machines

Further Information: 

  • Grant holder: EPSRC, EU, NaREC, Industry, Scottish Enterprise
  • IEE activities: Technical Adviser to Power Conversion and Applications Network