A New Hybrid-Excited Doubly Salient Permanent Magnet Machine With Flux Concentration Effect and DC-biased Sinusoidal Current

摘要

This paper proposes a new hybrid-excited doubly salient permanent magnet machine (HE-DSPMM). The proposed machine employs the PMs in both the yoke and slot openings of the stator, and the concentrated PM flux can effectively enhance the torque capability of the machine. Moreover, by injecting the dc-biased sinusoidal current into the armature windings, the proposed machine can achieve the flux regulation without the field windings. The topology and operation principle of the proposed machine are described. Then, the electromagnetic performance of the machine is investigated based on finite element analysis. The results show that the proposed machine has the high torque capability and flexible flux regulation ability.