[HTML][HTML] State-of-the-art review of railway traction motors for distributed traction considering South Korean high-speed railway

S Paul, PW Han, J Chang, YD Chun, JG Lee - Energy Reports, 2022 - Elsevier
This paper presents a critical review of traction motors used for distributed traction (DT)
applications in high-speed railways (HSR). The motor topologies that can be used for DT …

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 …

[HTML][HTML] Effect of Environmental and Operating Conditions on Partial Discharge Activity in Electrical Machine Insulation: A Comprehensive Review

Y Ji, P Giangrande, W Zhao - Energies, 2024 - mdpi.com
Electrical machines for transportation applications are subjected to harsh environmental
conditions during their operations. Partial discharge (PD), which is one of the main reasons …

Electrical machine design considering corona-resistant wire for more electric aircraft applications

Y Ji, P Giangrande, H Zhao, W Zhao… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
Higher dc link voltage and shorter rise time keep challenging the insulation system of
inverter-fed low-voltage electrical machines (EMs). In more electric aircraft (MEA) …

Computationally efficient stator ac winding loss analysis model for traction motors used in high-speed railway electric multiple unit

PW Han, UJ Seo, S Paul, J Chang - IEEE Access, 2022 - ieeexplore.ieee.org
The aim of this proposed work is to develop a computationally efficient and accurate AC
winding loss analysis model for the traction motors for use in high-speed railways (HSRs) …

Voltage rise rate‐related generalised probabilistic lifetime model of turn‐to‐turn insulation in inverter‐fed motors

Y Yang, X Bai, Y Lei, K Liu, G Wu - High Voltage, 2024 - Wiley Online Library
The lifetime model of turn‐to‐turn insulation in inverter‐fed motors is studied. A lifetime
model has been built by considering the effect of inverter‐generated high voltage rise rate …

Time-to-failure analysis of short-duty cycle, inverter-fed electrical machines exposed to prevailing electrical stress

Y Ji, P Giangrande, H Wang, W Zhao… - … on Aerospace and …, 2023 - ieeexplore.ieee.org
Compact and efficient electric drives are desirable in transport applications and an
increased dc-link voltage value combined with fast-switching devices represents a …

Lifetime estimation of corona-resistance wire for electrical machines operating under the partial discharge regime

Y Ji, P Giangrande, W Zhao, V Madonna… - … IEEE Workshop on …, 2023 - ieeexplore.ieee.org
The trend towards higher onboard DC link voltage keeps increasing the partial discharge
(PD) risk of electrical machines (EMs) for more electric aircraft (MEA) applications …

[HTML][HTML] Bi-directional coupled electro-thermal behaviors of traction motor for high-speed railway distributed traction system

S Paul, JG Lee, PW Han, J Chang, VK Tran… - Case Studies in Thermal …, 2023 - Elsevier
This research proposes a bi-directional electromagnetic-thermal coupled analysis model
based on node-to-node data transfer for a totally enclosed air over (TEAO) permanent …

Polyamide-imides as novel high performance primary protective coatings of silica optical fibers: Influence of the structure and molecular weight

ON Zabegaeva, AF Kosolapov, SL Semjonov… - Reactive and Functional …, 2024 - Elsevier
Polyimides are commonly used as primary protective optical fiber coatings for high-
temperature applications. However, a number of significant drawbacks such as thermal and …