Title :
Sizing equation analysis for field controlled PM machines: a unified approach
Author :
Tapia, Juan A. ; Aydin, Metin ; Huang, Surong ; Lipo, Thomas A.
Author_Institution :
Dept. of Electr. Eng., Univ. of Concepcion, Chile
Abstract :
In this paper, the sizing equation analyses are presented for two different radial and axial flux field controlled PM machines. These types of machines have two sources of excitation which allows one to easily control the airgap flux. Variable flux component provided by the field winding and fixed flux component obtained from PM converge into the airgap so that an additive or subtractive effect can be achieved over a wide range such that the machine speed range can be increased. A detailed analysis is made is order to evaluate the performance, power density and efficiency. In addition, guidelines for optimal design of the two machines are pointed out.
Keywords :
AC machines; air gaps; machine theory; machine vector control; machine windings; magnetic flux; magnetic variables control; permanent magnet machines; additive effect; airgap flux control; axial flux field controlled PM machines; efficiency; excitation sources; field winding; fixed flux component; machine speed range; power density; radial flux field controlled PM machines; sizing equation analyses; subtractive effect; variable flux component; Automation; Equations; Influenza; Iron; Machine windings; Magnetic analysis; Magnetic flux; Permanent magnets; Stator windings; Structural discs;
Conference_Titel :
Electric Machines and Drives Conference, 2003. IEMDC'03. IEEE International
Print_ISBN :
0-7803-7817-2
DOI :
10.1109/IEMDC.2003.1210374