Design and Application of a Hybrid Motor with a Rotor Structure Having Changeable Magnet and Reluctance Combination

摘要

In this study, design and application of a hybrid motor is introduced. The rotor of the hybrid motor includes separate magnet and reluctance parts. Each part also consists of six pieces. A considerable feature of the motor is that the combination of the parts can be suitably changed due to the magnet and reluctance pieces. The mechanical angle between the parts can also be varied. Three rotor constructions as completely magnet, completely reluctance and a hybrid rotor having three magnet and three reluctance pieces were studied in this work. First, finite element analysis (FEA) were used to analyze and predict the torque behaviors of the motors. Mathematical model of the proposed motor was formed in terms ofa,b,c variables considering the combination of the magnet and reluctance parts on the rotor. Simulations were performed through the mathematical equations for three motor types. The proposed motor and drive system were manufactured, and its performance was tested. Analysis and simulation results were verified by the experimental results of the static torque measurement and load tests. There is a good accordance between experimental and simulation results. The proposed hybrid motor shows a compound dc motor characteristic because of including both magnet and reluctance parts. Different load demand can be satisfied by the developed motor structure achieving different hybridization on the rotor.