TY - GEN
T1 - Modeling and reduction of stator teeth eddy-current losses in IPM machines
AU - Blum, Julian
AU - Merwerth, Jörg
AU - Herzog, Hans Georg
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/11/17
Y1 - 2014/11/17
N2 - A known drawback of interior permanent magnet synchronous machines are the high eddy-current losses in the stator teeth, especially in the field-weakening region. For a deep analysis of this phenomenon, an analytic loss modeling approach solely based on fundamental machine parameters like the inductances, the permanent magnet flux, and the magnet configuration is derived. Due to its formulation, the method allows a hybrid modeling with numerically calculated inductances and thus yields reasonable results even at the presence of saturation. It provides a deep understanding of key influencing parameters and reveals the dependency of eddy-current losses in the stator teeth on the direct and quadrature component of the stator current. Different parameter studies are performed with the model and compared to FEM simulations to underline the validity of the derived formulation.
AB - A known drawback of interior permanent magnet synchronous machines are the high eddy-current losses in the stator teeth, especially in the field-weakening region. For a deep analysis of this phenomenon, an analytic loss modeling approach solely based on fundamental machine parameters like the inductances, the permanent magnet flux, and the magnet configuration is derived. Due to its formulation, the method allows a hybrid modeling with numerically calculated inductances and thus yields reasonable results even at the presence of saturation. It provides a deep understanding of key influencing parameters and reveals the dependency of eddy-current losses in the stator teeth on the direct and quadrature component of the stator current. Different parameter studies are performed with the model and compared to FEM simulations to underline the validity of the derived formulation.
KW - IPM
KW - analytic
KW - interior permanent magnet
KW - iron loss
UR - http://www.scopus.com/inward/record.url?scp=84916201859&partnerID=8YFLogxK
U2 - 10.1109/ICELMACH.2014.6960350
DO - 10.1109/ICELMACH.2014.6960350
M3 - Conference contribution
AN - SCOPUS:84916201859
T3 - Proceedings - 2014 International Conference on Electrical Machines, ICEM 2014
SP - 1300
EP - 1306
BT - Proceedings - 2014 International Conference on Electrical Machines, ICEM 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 21st International Conference on Electrical Machines, ICEM 2014
Y2 - 2 September 2014 through 5 September 2014
ER -