Transverse Flux Generators –Principle and Operation Behaviour

Prof. Dr.-Ing. Bernd Orlik

Wind Turbine withconventional machine and gearbox

Wind turbine withTransverse Flux Machine

Flux Lines in a permanent magnetsynchronous machine

Three possible TMF structures

Coil CurrentMagnetic Flux through

the stator core

Function principle of a TFM

Function principle of a TFM

Coil CurrentMagnetic Flux through

the stator core

Function principle of a TFM

Linear TFM structure

One Phase of Permanent Magnet TFM

Permanent Magnet (magnetization „left“)

Permanent Magnet (magnetization „right“)

Rotor Cores made of Soft Magnetic Composite SMP1172

Stator cores withV-shaped connection elements

Geometry of one phase of the TFM

Magnetic circuit geometryof a two phase TFMwith external-rotor

Distribution ofmagnetic flux density at

maximum armature current

3D-FE Simulation

Magnetic Circuit of a TFM

Magnetic Circuit of a TFM

Magnetic Circuit with Flux Concentration

50kW-TFM - Cut through the machine

TFM in the test bay

Machine Data

mm518Machine Lengthmm925Outer DiameterNm8681,2Nominal Torquerpm55Nominal SpeedkW50Nominal Power

Air Gap Force Density comparison

TFM Control Concept