Results 1 to 10 of about 192,046 (260)

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

IEEE 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, Shijia Yu, Xiangpei Gu, Chuang Liu   +3 more
doaj   +1 more source

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

IEEE 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, Xiaoyan Huang, He Zhang, Vasyl Varvolik, Giampaolo Buticchi, Shuo Wang, Xiaochen Zhang, Jing Li, Chris Gerada   +8 more
doaj   +1 more source

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

Energies, 2022
Heat pipes (HPs) are gaining increasing popularity in the propulsion motors of transportation electrification due to their remarkable thermal properties.
Xiaochen Zhang, Han Zhao, Jing Li, Fengyu Zhang, Yue Zhang, Hongyu Yan, Zhihao Niu, David Gerada, He Zhang   +8 more
doaj   +1 more source

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

IEEE 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, Chunyang Gu, Jing Li, Giampaolo Buticchi, Salman Ijaz, Chris Gerada, He Zhang   +6 more
doaj   +1 more source

Modeling Techniques and Stability Analysis Tools for Grid-Connected Converters

IEEE 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, Giampaolo Buticchi, Nadia Mei Lin Tan, Sandro Guenter, Jiajun Yang, Patrick Wheeler   +5 more
doaj   +1 more source

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

EURO 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, Madalena Pereira, Fabrizio Oliviero   +2 more
doaj   +1 more source

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

Energies, 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, Chunyang Gu, Serhiy Bozhko, Chris Gerada   +3 more
doaj   +1 more source

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

CES 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, Jian Huang, Yunyi Jiang, Weiwei Geng, Yanwu Xu   +4 more
doaj   +1 more source

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

Aerospace, 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

Series Arc Detection and Complex Load Recognition Based on Principal Component Analysis and Support Vector Machine

IEEE Access, 2019
The increasing household loads make series arc faults more complex, which are difficult to be detected by traditional circuit breakers and lead to the frequent occurrence of residential fire accidents.
Jun Jiang, Zhe Wen, Mingxin Zhao, Yifan Bie, Chen Li, Mingang Tan, Chaohai Zhang   +6 more
doaj   +1 more source