E-Core Hybrid Reluctance Motor With Permanent Magnets Inside Stator Common Poles

Abstract

In this paper, a new E-core hybrid reluctance motor (HRM) is proposed with permanent magnets (PMs), placed inside stator common poles. This motor is a 2-phase 12/16 HRM, which is characterized by a stator composed of four E-cores and a rotor with the same configuration of switched reluctance motors. The three poles of each E-core are identified as a common pole in the middle with no windings and two excitation poles in the sides with concentric windings. The windings of the excitation poles are wound such that both phases generate flux in the same direction as the PMs flux, so the demagnetization problem of the PMs is solved. The proposed motor is analyzed, and in order to illustrate the features and improvements, it is compared with two other well-established HRMs of the same size based on the simulation results obtained from the finite element analysis method. Moreover, some parameters like average torque, output power, and efficiency are compared, and it is illustrated that the proposed motor has better specifications compared to the other two. Finally, to verify the accurate design and operation of the proposed motor, its experimental verification is performed.