Following the global trend of carbon neutrality, green sustainable air transport becomes a
hot topic in relevant area of applied energy. Electrified air transport propulsion system …

The utilization of hybrid electric propulsion concept in aviation offers a viable solution to
address the limitations posed by the relatively low energy density of batteries in fully electric …

The rapidly increasing demand on power density levels of electric vehicle (EV) drive
systems is pushing the boundaries of traction motor performance. Hairpin windings are …

While the electromagnetic aspects of hairpin windings are actively being investigated and
discussed in recent literature, including the design rules together with the loss calculation …

Permanent magnet (PM) machines have been extensively used for various applications.
Nevertheless, thermal effect, particularly hotspot temperature, not only severely restricts …

Beyond the standard rated operations, there exists a recognized exigency for electric motors
possessing heightened overload capability, notably in contexts involving powerful electric …

In the electrification of the automotive drive train, an unprecedented change is currently
influencing the production technology of stators. Previously established round wire winding …

The growing interest in electric vehicles leads to new developments of efficient electric
traction motors with high power density. Since a large part of the losses in an electric motor …

Industry is increasingly adopting high-speed electric machines due to their high-power
density and low cost. However, increasing the speed leads to many challenges that are …

Alternating current (AC) copper losses in motors increase with carrier frequency of the pulse
width modulation (PWM) and are further increased by leakage flux of the permanent magnet …