Title :
Pulsating torque reduction of surface-mounted permanent magnet synchronous motor with unequal slot angle
Author :
Yokoi, Yuichi ; Higuchi, Tatsuro
Author_Institution :
Div. of Electr. Eng. & Comput. Sci., Nagasaki Univ., Nagasaki, Japan
Abstract :
In the paper, we introduce the concept of uneven slot arrangement for the reduction of pulsating torque in a surface-mounted permanent magnet synchronous motor. The effect of the arrangement of slots and magnets on torque pulsation is studied numerically. The inequality in the slot arrangement reduces the 12th harmonic pulsating torque and increases the 6th harmonic one. In addition, we shape torque waveforms, based on the obtained results.
Keywords :
permanent magnet motors; surface mount technology; synchronous motors; torque; magnets arrangement; pulsating torque reduction; surface-mounted permanent magnet synchronous motor; torque pulsation; torque waveform shaping; unequal slot angle; uneven slot arrangement; Harmonic analysis; Magnetic domains; Permanent magnet motors; Permanent magnets; Synchronous motors; Torque; Windings; magnet arc width; pulsating torque reduction; uneven slot arrangement; winding method;
Conference_Titel :
Electrical Machines and Systems (ICEMS), 2012 15th International Conference on
Conference_Location :
Sapporo
Print_ISBN :
978-1-4673-2327-7
