Results 21 to 30 of about 110,601 (324)

Analysis of an Axial Field Hybrid Excitation Synchronous Generator

Energies
An axial field hybrid excitation synchronous generator (AF-HESG) is proposed for an independent power supply system, and its electromagnetic performance is studied in this paper.
Junyue Yu, Shushu Zhu, Chuang Liu
doaj   +2 more sources

A Consequent-Pole Hybrid Exciter for Synchronous Generators [PDF]

IEEE Transactions on Energy Conversion, 2021
In low-to-medium power generating sets, a self-powered brushless excitation system is typically employed. This solution is cost-effective, simple and compact, but it suffers from an unreliable voltage build-up at start-up, a slow dynamic response and a relatively low efficiency for the exciter.
Stefano Nuzzo, Paolo Bolognesi, Giovanni Decuzzi, Paolo Giangrande, Michael Galea   +4 more
openaire   +3 more sources

Robust Control for Torque Minimization in Wind Hybrid Generators: An H_∞ Approach

Mathematics, 2023
This study focuses on implementing a wind turbine emulator based on a permanent magnet synchronous machine with excitation auxiliary windings and thoroughly investigates the space harmonics created by this innovative topology in MATLAB/Simulink. A Hybrid
Amina Mseddi, Omar Naifar, Mohamed Rhaima, Lassaad Mchiri, Abdellatif Ben Makhlouf   +4 more
doaj   +1 more source

Safety boots [PDF]

, 2020
Nowadays, safety boots are necessary and essential to workers in order to avoid harm and injury at a workplace. Safety boots can be defined as a personal protective equipment (PPE) for foot protection at workplace from getting foot injuries caused by ...
Abubakar, Muhammad Umarazizi, Othman, Siti Amira, Peh, Hoo Keong   +2 more
core   +1 more source

Analysis of Performance Improvement of Passenger Car Synchronous Homopolar Generator with the Addition of Ferrite Magnets

Applied Sciences, 2023
Electric machines with hybrid excitation have increased torque density while maintaining a wide range of speed control. This article presents the results of the optimal design of a synchronous homopolar generator (SHG) with ferrite magnets on the rotor ...
Vladimir Prakht, Vladimir Dmitrievskii, Vadim Kazakbaev   +2 more
doaj   +1 more source

The synchronous generator based on a hybrid excitation with the extended range of voltage adjustment [PDF]

E3S Web of Conferences, 2019
In the paper a synchronous generator based on a hybrid excitation, including permanent magnets and field coil, is studied. The structures of rotor magnetic circuit allowing one to expand the range of generator voltage adjustment are explained and ...
Popenda Andrzej, Chwalba Sławomir
doaj   +1 more source

A Novel Hybrid Excitation Doubly Salient Generator with Separated Windings by PM Inserted in Stator Slot for HEVs

Energies, 2022
Aiming to design a generator with high reliability, high efficiency, and especially a constant output voltage over a wide speed range for hybrid electric vehicles (HEVs), this paper proposes a novel topology of a hybrid excitation doubly salient ...
Mengyao Wang, Baoquan Kou, Lu Zhang, Yuansheng Zhao, Jian Xu   +4 more
doaj   +1 more source

Performance Analysis and Optimization of Built-In Permanent Magnet and Salient-Pole Electromagnetic Hybrid Excitation Generators for Vehicles

Journal of Engineering, 2022
To solve the problems of the low power density of pure electric excitation generator and nonadjustable magnetic field of pure permanent magnet (PM) generator, a salient-pole hybrid excitation generator (HEG) was proposed in this paper.
Huihui Geng, Xue-Yi Zhang, Yanhong Gao, Shilong Yan, Yufeng Zhang, Yutong Han, Lei Wang, Sizhan Hua   +7 more
doaj   +1 more source

Design and Optimization of a Hybrid Excitation System for Magnetically Driven Rotating DC Arc Plasma Generators

IEEE Access, 2021
To eliminate the disadvantages of both the uncontrollability in the magnetic field of a permanent magnet excitation system and the high energy consumption of an electric excitation system in a traditional magnetically rotating arc plasma generator, a ...
Xiaowen Xu, Zhuoxiang Ren, Shiyou Yang
doaj   +1 more source

Research on Levitation Force Control of an Axial-flux Hybrid-Excitation Generator with PI-Based Torque Distribution

Journal of Physics: Conference Series, 2023
An asymmetric-primary axial-flux hybrid-excitation generator (APAFHG) has already been proposed to improve the starting performance of vertical axis wind turbines.
Jiming Chen, Chongwang Xu, J. Zhu, Jing Liu   +3 more
semanticscholar   +1 more source