Abstract
This paper introduces a high-load-type active magnetic bearing (HL-AMB) for an induction-heated roll. To support the induction coil installed in a heated roller, a novel active magnetic bearing that can support a load of about 10 kN and has a compact body is introduced. The HL-AMB consists of fan-shaped bias cores and cross-shaped control cores. Bias cores produce a large bias force and bias moment to support the mass of a levitated object, and control cores produce control forces and moments. In this paper, the design and control system of the HL-AMB are described and the results of levitation and rotational tests are presented.
