Proposal and operation characteristics of novel consequentpole permanent magnet motor

Abstract

A novel consequent-pole permanent magnet (PM) motor is proposed in the paper, which has an image pole pair for every pole pair of N and S. The three-phase synchronous impedances of the motor are balanced owing to the rotor configuration. In addition, it is possible to carry out field weakening with less d-axis current, which leads to a highly efficient operation in a high-speed range. This paper describes a basic principle and its operation characteristics of the newly proposed consequent-pole PM motor.

Modern Hybrid Excited Electric Machines

“…An innovative concept of a permanent magnet motor with sequence poles was proposed in [47]. The motor has a unique rotor configuration in which the actual PM pole pairs and image pole pairs are positioned every other pole pair.…”

Hybrid-Excited Permanent Magnet-Assisted Synchronous Reluctance Machine

“…The authors of [18] presented typical structures of these machines with PMs mounted on the surface and using magnetic concentrators (Figure 1j). The authors of [19] presented a Vernier permanent magnet machine with homopolar topology, while the authors of [20] presented research of the machine where rotor consists of two parts: with permanent magnets and the wound electromagnets.…”

“…(g) Hybrid-Excited Machines with DC winding on stator [15]; (h) stator of double stator inner rotor axial air gap flux switching permanent magnet machine [16]; (i) hybrid-excited claw pole generator [17]; (j) hybrid-excited Vernier machine [18]; (k) consequent-pole permanent magnet machines [19];…”

“…(a) Hybrid-excited synchronous machine with contactless energy transfer [1]; (b) hybridexcited switched-flux permanent magnet machine [3]; (c) doubly salient machine [7]; (d) axial flux hybrid excitation motor [9]; (e) axial-radial flux machine [12]; (f) dual rotor/stator machine [14]; (g) Figure 1. (a) Hybrid-excited synchronous machine with contactless energy transfer [1]; (b) hybridexcited switched-flux permanent magnet machine [3]; (c) doubly salient machine [7]; (d) axial flux hybrid excitation motor[9]; (e) axial-radial flux machine[12]; (f) dual rotor/stator machine[14]; (g) Hybrid-Excited Machines with DC winding on stator[15]; (h) stator of double stator inner rotor axial air gap flux switching permanent magnet machine[16]; (i) hybrid-excited claw pole generator[17]; (j) hybrid-excited Vernier machine[18]; (k) consequent-pole permanent magnet machines[19]; (l) rotor of induction motor, line-start synchronous reluctance motor, and line-start interior permanent magnet synchronous motor[23].…”