Power loss analysis in thermal design of permanent-magnet machines—A review

R Wrobel, PH Mellor, M Popescu… - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
This paper reviews recent developments in power loss analysis applicable, but not limited
to, the thermal design of permanent-magnet machines. Accurate and computationally …

Dielectric characteristics of electric vehicle traction motor winding insulation under thermal aging

KN Gyftakis, M Sumislawska… - IEEE Transactions …, 2015 - ieeexplore.ieee.org
The electric motor is the heart of the electric vehicle. It is crucial that any occurring faults are
detected promptly so that a catastrophic failure is avoided. At the same time, deep …

Investigation of mechanical loss components and heat transfer in an axial-flux PM machine

R Wrobel, G Vainel, C Copeland… - IEEE Transactions …, 2015 - ieeexplore.ieee.org
This paper investigates components of mechanical loss together with heat transfer effects in
an axial-flux permanent-magnet motor. The mechanical loss components generated within …

Prediction and measurement of the heat transfer coefficient in a direct oil-cooled electrical machine with segmented stator

R Camilleri, P Beard, DA Howey… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
The heat transfer coefficient (HTC) is a critical parameter that is required for accurate thermal
modeling of electrical machines. This is often achieved from empirical correlations of ideal …

A semi-flooded cooling for a high speed machine: Concept, design and practice of an oil sleeve

Z Xu, A La Rocca, P Arumugam… - IECON 2017-43rd …, 2017 - ieeexplore.ieee.org
This paper proposes a semi-flooded cooling concept for a high speed machine design. The
electrical machine considered is for an aircraft starter-generator system where power density …

Experimental study of oil cooled induction motor for hybrid and electric vehicles

B Assaad, K Mikati, TV Tran… - 2018 XIII international …, 2018 - ieeexplore.ieee.org
In this paper, we present an experimental study of a new design of the traditional Totally
Enclosed Fan-Cooled (TEFC) induction motor. This design proposes to remove the turbine …

Stator heat extraction system for axial flux yokeless and segmented armature machines

H Vansompel, A Hemeida… - 2017 IEEE International …, 2017 - ieeexplore.ieee.org
The torque density of electric motors strongly depends on the performance of the cooling
system. In the axial flux yokeless and segmented armature machine, cooling inherently …

[PDF][PDF] Mechanical failure mode causes of in-wheel motors

M Biček, G Gotovac, D Miljavec… - Strojniški vestnik-Journal of …, 2015 - academia.edu
The presented survey includes a comprehensive overview of mechanical failure mode
causes for direct driven electric in-wheel motors. As electric vehicles evolve and develop, in …

Assessing the temperature and current density of flat winding coils for concentrated windings within a segmented stator machine

R Camilleri, MD McCulloch - IEEE Transactions on Industry …, 2021 - ieeexplore.ieee.org
This article re-evaluates flat windings to improve the current density of concentrated
windings. The article produces finite element and lumped parameter thermal models to …

A new flat winding construction for direct liquid cooled axial flux machine with segmented stators

R Camilleri, MD McCulloch - 2018 XIII International …, 2018 - ieeexplore.ieee.org
This paper proposes a new flat winding construction for use in a direct liquid cooled
segmented stator. Following a demonstration of how the conductivity across the windings …