Abstract
Recently, magnetic-geared motors that are a type of the low-speed and high-torque actuator attract attention. We have proposed a half- and a 3/4-permanent-magnet magnetic-geared motor, and their torque characteristics have been compared with conventional magnetic-geared motors. As a result, it was clarified that the maximum transmission torque and torque constant of both magnetic-geared motors are larger than those of the conventional magnetic-geared motors. This paper compares the torque characteristics of the half- and 3/4-permanent-magnet magnetic-geared motors with the conventional brushless motors in terms of the cogging torque, torque ripple, and N-T curve.
