Purpose The paper presents the results of work on control systems of bearingless electric
motors. Authors proposed the applications of bearingless electric machines for aircraft
actuation system. Suggested solution characterizes novel concept of on-board equipment
design such as More Electric Aircraft. Magnetic suspension technology allows elimination of
friction force and the negative performance features of classic bearing system. However, to
achieve all these purposes appropriately, dedicated control system must be also applied …

This paper discusses the advantages and major issues associated with the implementation
of magnetic suspension in aircraft systems such as nacelle actuators, generators and small
gas turbines. Magnetic bearings eliminate mechanical contacts between stator and rotor,
friction forces, removes the negative effects of operation such as heat and wear on the
friction elements, lubrication, heat dissipation, noise, etc. The development of a bearingless
system is presented in detail, including control system design, FEM modelling and rig …