Design and Optimization of Integrated Bearingless Motor to Magnetic-Geared Motor with Different Motor Topologies
Sprache des Titels:
Englisch
Original Buchtitel:
IEEE International Conference on Communications
Original Kurzfassung:
Magnetic-geared motors have many advantages over mechanical gearboxes, such as reduced maintenance and overload protection. Meanwhile, the limited life of the mechanical bearings that hold the high-speed rotor is a problem in terms of durability. To solve this problem, the authors proposed a magnetic-geared motor with additional three-phase windings to achieve magnetic
suspension for the high-speed rotor. However, the torque density of the motor proposed in a previously published paper is small compared to the general magnetic-geared motor. Additionally, the magnetic suspended high-speed rotor in the previous paper model has surface mounted permanent magnet structure. Thus, accurate rotational angle detection is required. In this paper, a novel
bearingless motor with a high-speed rotor is proposed for a consequent-pole-type magnetic-geared motor. Compared to the previously proposed magnetic-geared motor, this system has the advantage of higher torque density and improved controllability.
In addition, the magnetic suspension characteristics and torque capability in different motor topologies were analyzed by finite element analysis.
Forschungs-