Results 1 to 10 of about 6,659 (163)

The More-Electric Aircraft and Beyond

open access: yesProceedings of the IEEE, 2023
Aviation is a significant contributor to greenhouse gas (GHG) emissions in the transportation sector. As the adoption of electric cars increases and GHG emissions due to other modes of transport decrease, the impact of air travel on environmental pollution has become even more significant.
Giampaolo Buticchi   +2 more
exaly   +2 more sources

Torque Performance Improvement of Doubly Salient Electromagnetic Machine by Harmonic Current Injection With Optimized Magnetomotive Force Ratio

open access: yesIEEE Access, 2021
The doubly salient electromagnetic machine (DSEM) has simple and reliable structure while suffering from the problem of torque ripple due to the salient pole structure.
Yongmei Wu   +3 more
doaj   +1 more source

Generalized High-Frequency Injection Framework for Sensorless Control of Synchronous Reluctance Machines

open access: yesIEEE Open Journal of the Industrial Electronics Society, 2023
The high-frequency injection (HFI) method is commonly used for sensorless control of synchronous reluctance motors (SynRMs) at low speeds. Injecting a high-frequency (HF) signal in a predefined direction, referred to as the $d$-axis, and further ...
Dmytro Prystupa   +8 more
doaj   +1 more source

Experimental Investigation of Heat Pipe Inclination Angle Effect on Temperature Nonuniformity in Electrical Machines

open access: yesEnergies, 2022
Heat pipes (HPs) are gaining increasing popularity in the propulsion motors of transportation electrification due to their remarkable thermal properties.
Xiaochen Zhang   +8 more
doaj   +1 more source

Performance Prediction of Direct Torque-Controlled PMSM Drives Considering Different Pulse Selectors Using FEA-Based Model

open access: yesIEEE Open Journal of Power Electronics, 2023
Despite the robustness and fast dynamic response, direct torque control (DTC) exhibits relatively large ripples in torque and flux during steady-state operation.
Ahmed Nasr   +6 more
doaj   +1 more source

Modeling Techniques and Stability Analysis Tools for Grid-Connected Converters

open access: yesIEEE Open Journal of Power Electronics, 2022
Large-scale integration of renewable generation interfaced to the network through power electronic converters has led to drastic changes in power system dynamics. In islanded microgrids or weak grids, different control concepts for the synchronization of
Qilin Peng   +5 more
doaj   +1 more source

Electric flight scheduling with battery-charging and battery-swapping opportunities

open access: yesEURO Journal on Transportation and Logistics, 2022
With the current advances in aircraft design and Lithium-Ion batteries, electric aircraft are expected to serve as a replacement for conventional, short-range aircraft. This paper addresses the main operational challenges for short-range flights operated
Mihaela Mitici   +2 more
doaj   +1 more source

Performance Enhancement of Direct Torque-Controlled Permanent Magnet Synchronous Motor with a Flexible Switching Table

open access: yesEnergies, 2020
In this paper, a flexible switching table (FST) for direct torque control (DTC) of permanent magnet synchronous motors (PMSMs) was proposed to enhance the steady-state and dynamic performances of the drive system.
Ahmed Nasr   +3 more
doaj   +1 more source

Influence of Novel Airframe Technologies on the Feasibility of Fully-Electric Regional Aviation

open access: yesAerospace, 2021
The feasibility of regional electric aviation to reduce environmental impact highly depends on technological advancements of energy storage techniques, available battery energy density, and high-power electric motor technologies.
Stanislav Karpuk, Ali Elham
doaj   +1 more source

Overview and analysis of PM starter/generator for aircraft electrical power systems

open access: yesCES Transactions on Electrical Machines and Systems, 2017
More Electrical Aircraft (MEA) which replaces the hydraulic and pneumatic power by electrical power leads to reducing emissions and fuel consumption. The MEA concept has led to a growing use of the starter/generator (S/G) system.
Zhuoran Zhang   +4 more
doaj   +1 more source

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