ROTOR CONSTRUCTION FOR CONTROLLED-POLE ELECTRIC MACHINES

摘要

A rotor (9) in a high speed controlled-pole electric machine (1) including a rotor core (19) having an exterior surface; a first layer of remagnetizable magnetic material (13) positioned about the rotor core (19) exterior surface; and a first layer of high strength fiber or wire (15) binding the first layer of remagnetizable magnetic material (13) to the rotor core (19) exterior surface. The rotor (9) can also have additional layers of remagnetizable magnetic material (12) disposed about the first layer of remagnetizable magnetic material (13) and the rotor core (19) and each bound to the rotor core (19) by its own layer of high strength wire (14, 15). Magnetic properties of magnetic blocks (16) forming each layer (12, 13) can be specified individually for each layer (12, 13) to compensate for internal changes that can occur in externally applied magnetic fields due to the geometry of the rotor (9).