TY - GEN
T1 - On the Effects of Advanced End-Winding Cooling on the Design and Performance of Electrical Machines
AU - Madonna, Vincenzo
AU - Giangrande, Paolo
AU - Walker, Adam
AU - Galea, Michael
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/10/24
Y1 - 2018/10/24
N2 - High performance and reliable electrical machines are often required in modern applications and an appropriate thermal management allows to fulfil such demand. Thermal management is crucial for improving performance, reducing size and preserving the insulation lifetime of electrical machines. From this prospective, a novel cooling method for machine end-windings is proposed in the present work. Its cooling action focuses on the end-windings, since they are commonly identified as the machine hot-spot. The effectiveness of the proposed cooling method is experimentally proved and the improvement, in terms of current density, for a given wire insulation thermal class, is quantified. A previously designed permanent magnet synchronous machine, implementing a traditional housing water jacket, is used as a case study. The influence of the improved current density on machine torque density is investigated, through finite element simulations, when the proposed cooling method is integrated to the existing housing water jacket.
AB - High performance and reliable electrical machines are often required in modern applications and an appropriate thermal management allows to fulfil such demand. Thermal management is crucial for improving performance, reducing size and preserving the insulation lifetime of electrical machines. From this prospective, a novel cooling method for machine end-windings is proposed in the present work. Its cooling action focuses on the end-windings, since they are commonly identified as the machine hot-spot. The effectiveness of the proposed cooling method is experimentally proved and the improvement, in terms of current density, for a given wire insulation thermal class, is quantified. A previously designed permanent magnet synchronous machine, implementing a traditional housing water jacket, is used as a case study. The influence of the improved current density on machine torque density is investigated, through finite element simulations, when the proposed cooling method is integrated to the existing housing water jacket.
KW - AC motors
KW - Design optimization
KW - Finite element analysis
KW - Permanent magnet machines
KW - Sensitivity analysis
KW - Thermal management
UR - http://www.scopus.com/inward/record.url?scp=85057186885&partnerID=8YFLogxK
U2 - 10.1109/ICELMACH.2018.8507170
DO - 10.1109/ICELMACH.2018.8507170
M3 - Conference contribution
AN - SCOPUS:85057186885
T3 - Proceedings - 2018 23rd International Conference on Electrical Machines, ICEM 2018
SP - 311
EP - 317
BT - Proceedings - 2018 23rd International Conference on Electrical Machines, ICEM 2018
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 23rd International Conference on Electrical Machines, ICEM 2018
Y2 - 3 September 2018 through 6 September 2018
ER -