Design of compact active magnetic bearing with higher load carrying capacity

Active magnetic bearings (AMB) are suitable for high speed applications because of their contactless operation. In many vital applications compact magnetic bearings with higher load carrying capacity are required for better utilization of available space, material and also for efficient operation. Hence in this present work efforts are made to design the AMB to achieve higher load carrying capacity and compact size. Two basic design parameters like number of poles and pole winding pattern are considered and their effect on the load carrying capacity and size of the AMB is presented. Eight-pole AMB of symmetric configuration with trapezoidal winding pattern has given the compact size with higher load carrying capacity.