Author_Institution :
Electr. Machines & Drives Group, Univ. of Sheffield, Sheffield, UK
Abstract :
In this paper, partitioned stator flux reversal permanent magnet (PS-FRPM) machines having different stator/rotor pole combinations with consequent-pole PM (CPM) stator are proposed and analyzed. Compared with the conventional 12-stator-pole PS-FRPM machines having 10-, 11-, 13-, and 14-rotor-pole rotors and surface-mounted PM (SPM) stator, the PM volume in the proposed PS-FRPM machines with CPM stator can be saved by 28.33%, 30%, 30%, and 33.33%, respectively, while the torque density are similar, i.e., 98.59%, 96.69%, 95.50%, and 97.15%, respectively. Besides, the proposed PS-FRPM machines with CPM stator can exhibit only <;1% smaller efficiency compared with the existing PS-FRPM machines with SPM inner stator.
Keywords :
permanent magnet machines; rotors; stators; torque; 10-rotor-pole rotors; 11-rotor-pole rotors; 13-rotor-pole rotors; 14-rotor-pole rotors; CPM stator; SPM inner stator; consequent-pole PM stator; conventional 12-stator-pole PS-FRPM machines; partitioned stator flux reversal permanent magnet machine; stator-rotor pole combination; surface-mounted PM stator; torque density; Harmonic analysis; Rotors; Stator windings; Torque; Windings; Consequent-pole; efficiency; partitioned stator (PS); permanent magnet (PM); permanent magnet volume; surface-mounted; torque density;
