3D structure line start synchronous reluctance motor design based on selective laser melting of 3D printing

Due to the features of high efficiency, high torque, and without using permanent magnets, the synchronous reluctance motors (SynRMs) have become popular in industry. Such advantages are contributed by the design of the rotor barriers and ribs that the flux flow path are arranged as shown in Fig. 1(a). However, the requirements of motors usually are not just high efficiency but some other more operation capabilities such as low vibration and easy start. Unfortunately, as compared with the industrial most commonly used induction motors (IMs), position sensors are additionally required for initiating starting of SynRMs [1] [2]. Moreover, the barriers and ribs of SynRMs may increase the risk of structure deformation as rotation. Hence, this paper proposes a novel design of applying the 3D bionic structure in the SynRMs with new flux path design to solve the said problems. Further, the additive manufacturing (3D printing) is adopted to fabricate the complicated prototype of the rotor.