Title :
Influence of design parameters on wide speed range concentrated winding PM machines
Author :
Rahman, Shah Asifur ; Knight, Andrew M.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alberta, Edmonton, AB, Canada
Abstract :
This paper presents analysis of the influence of design choices on the performance of an interior permanent magnet synchronous machine with concentrated winding designed to operate at constant power over a wide (six to one) speed range. The influence that winding design and magnet field strength have on the balance between copper and iron losses in the field weakening region is investigated. An example design for a machine capable of 1000W operation over 1000rpm to 6100rpm is presented. Lumped parameter analysis is used in combination with time-stepped finite element analysis in order to illustrate the observed performance variations. Three different cases in wide speed range have been investigated for core losses. The affects that how harmonic components influence on the total core losses is also studied.
Keywords :
finite element analysis; machine windings; permanent magnet machines; synchronous machines; PM machines; copper loss; core loss; design parameters; field weakening region; harmonic components; interior permanent magnet synchronous machine; iron loss; lumped parameter analysis; magnet field strength; power 1000 W; time-stepped finite element analysis; wide-speed range concentrated winding; winding design; Core loss; Eddy currents; Harmonic analysis; Magnetic cores; Magnetic flux; Magnetic hysteresis; Windings; Field Weakening; core losses; design; harmonics;
Conference_Titel :
Electric Machines & Drives Conference (IEMDC), 2011 IEEE International
Conference_Location :
Niagara Falls, ON
Print_ISBN :
978-1-4577-0060-6
DOI :
10.1109/IEMDC.2011.5994736
