Title :
Analytical method for predicting the air-gap flux density of Dual-Rotor Permanent-Magnet (DRPM) Machine
Author :
Xie, W. ; Dajaku, G. ; Gerling, D.
Author_Institution :
Inst. for Electr. Drives & Actuators, Univ. of Fed. Defense, Munich, Neubiberg, Germany
Abstract :
In this paper an analytical method for designing DRPM machine is presented. As well known, DRPM machine has high efficiency, high torque density and can be used as Electric Vehicle Drive and so on, thus developing a simple and accurate analytical method is necessary. The aim of this paper is to calculate the air-gap flux density taking into account the harmonics of the winding current, the winding type and the influence of radial and parallel magnetized magnets. A magnetic equivalent circuit of DRPM machine is developed, and both inner and outer magnet circuits are analyzed separately. Compared with finite-element method (FEM), the analytical method gets an accurate result.
Keywords :
equivalent circuits; finite element analysis; machine insulation; machine windings; magnetic circuits; magnetic flux; permanent magnet machines; rotors; DRPM machine; FEM; air-gap flux density prediction; analytical method; dual-rotor permanent-magnet machine; electric vehicle drive; finite-element method; high torque density; magnetic equivalent circuit; parallel magnetized magnet; radial magnetized magnet; winding harmonic current; Air gaps; Magnetic circuits; Magnetic flux; Rotors; Saturation magnetization; Stator windings; Air-Gap Flux Density; Analytical Method; DRPM Machine; Slotting Effect;
Conference_Titel :
Electrical Machines (ICEM), 2012 XXth International Conference on
Conference_Location :
Marseille
Print_ISBN :
978-1-4673-0143-5
Electronic_ISBN :
978-1-4673-0141-1
DOI :
10.1109/ICElMach.2012.6350278
