Title :
Modified Carter's Coefficient
Author :
Laldin, Omar ; Sudhoff, Scott D. ; Pekarek, Steven
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
Analytical models of electric machinery often utilize Carter´s coefficient to account for the increased airgap reluctance due to flux entering the sides of the stator teeth. In this letter, a modified coefficient is proposed to account for wide stator slots, wherein a component of flux directly enters the stator backiron. The proposed coefficient is implemented in an analytical model of a wound rotor synchronous machine and is validated using two-dimensional (2-D) finite element analysis.
Keywords :
finite element analysis; rotors; stators; synchronous machines; airgap reluctance; electric machinery; modified Carter coefficient; stator backiron; stator teeth; two-dimensional finite element analysis; wide stator slots; wound rotor synchronous machine; Analytical models; Atmospheric modeling; Computational modeling; Rotors; Stators; Synchronous machines; Analytical model (AM); Carter’s coefficient; Carter´s coefficient; effective airgap; electrical machines;
Journal_Title :
Energy Conversion, IEEE Transactions on
DOI :
10.1109/TEC.2015.2415457
