Segmented hairpin topology for reduced losses at high-frequency operations
Nowadays, one of the key challenges in transport electrification is the reduction of
components' size and weight. The electrical machine plays a relevant role in this regard …
components' size and weight. The electrical machine plays a relevant role in this regard …
Hairpin windings: An opportunity for next-generation e-motors in transportation
S Nuzzo, D Barater, C Gerada… - IEEE Industrial Electronics …, 2021 - ieeexplore.ieee.org
Advances in electrical machines and power electronics (PEs) are helping to achieve the
power density and efficiency required by the transportation sector. However, the reliability of …
power density and efficiency required by the transportation sector. However, the reliability of …
Determination of hotspot temperature margin for rectangular wire windings considering insulation thermal degradation and partial discharge
Y Ji, P Giangrande, W Zhao, V Madonna… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
Increasing current density is a common way to improve the power density of electrical
machines (EMs) which also boosts the winding temperature. Higher winding temperature …
machines (EMs) which also boosts the winding temperature. Higher winding temperature …
AC losses analysis and design guidelines for hairpin windings with segmented conductors
M Pastura, R Notari, S Nuzzo, D Barater… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
In the last years, hairpin windings (HWs) are amongst the most studied and implemented
winding topologies to increase torque and power densities of electrical machines, especially …
winding topologies to increase torque and power densities of electrical machines, especially …
Hairpin windings for electric vehicle motors: Modeling and investigation of AC loss-mitigating approaches
PS Ghahfarokhi, A Podgornovs, AJM Cardoso… - Machines, 2022 - research.aalto.fi
The hairpin winding configuration has been attracting attention as a solution to increase the
power density of electric vehicle motors by enhancing the slot-filling factor. However, this …
power density of electric vehicle motors by enhancing the slot-filling factor. However, this …
Hairpin windings manufacturing, design, and ac losses analysis approaches for electric vehicle motors
PS Ghahfarokhi, A Podgornovs… - 2021 11th …, 2021 - ieeexplore.ieee.org
This paper investigates the hairpin winding configuration as a solution to increase the power
density of electric vehicle motors by enhancing the slot filling factor. Moreover, the paper …
density of electric vehicle motors by enhancing the slot filling factor. Moreover, the paper …
A multi-objective design optimization for a permanent magnet synchronous machine with hairpin winding intended for transport applications
Nowadays, interest in electric propulsion is increasing due to the need to decarbonize
society. Electric drives and their components play a key role in this electrification trend. The …
society. Electric drives and their components play a key role in this electrification trend. The …
Hairpin windings: Sensitivity analysis and guidelines to reduce ac losses
Nowadays, electrification in the transportation sector is one of the most viable solutions to
reduce CO2 emissions and meet fuel economy requirements. Being the electrical machine …
reduce CO2 emissions and meet fuel economy requirements. Being the electrical machine …
Investigation of resistivity impact on ac losses in hairpin conductors
M Pastura, D Barater, S Nuzzo… - IECON 2021–47th …, 2021 - ieeexplore.ieee.org
This work provides an analysis of the impact on AC losses in hairpin conductors, provided
by different values of resistivity. Starting from some specific stator geometries, the optimal …
by different values of resistivity. Starting from some specific stator geometries, the optimal …
AC losses reduction in Hairpin Windings produced via Additive Manufacturing
R Notari, M Pastura, S Nuzzo, D Barater… - 2022 International …, 2022 - ieeexplore.ieee.org
One of the key challenges of hairpin windings is the reduction of their high losses at high-
frequency operations. Hairpin layouts comprising conductors with variable cross sections …
frequency operations. Hairpin layouts comprising conductors with variable cross sections …