Permanent magnet excited synchronous machine for application in explosion risk areas such as drives in oil and gas industry, comprises part poles or whole poles magnetized by magnetizing units

摘要

The synchronous machine is designed, so that the rotor (L), for the production of an excitation field, has a permanent magnetic (PM) structure for the production of an excitation field, distributed over the circumference of the rotor iron sheet stack (LB). So that the part poles or the whole poles (P1,P2,P3.....Px) are magnetised by means of the magnetising units. The permanent magnets (PM) of the rotor (L), have the smallest possible subdivision over the surface of the rotor sheet iron stack (LB).