Results 31 to 40 of about 1,896,325 (283)

Thermal Analysis of Dual-Axis-Direction Hybrid Excitation Generator for Electric Vehicles

Energies, 2022
Electric vehicle (EV) generators have characteristics of small volume and high power density, which leads to high temperature rise. The temperature rise will directly influence the service life and reliability of the generator, so thermal analysis of EV ...
Yu Cao, Shushu Zhu, Junyue Yu, Chuang Liu   +3 more
doaj   +1 more source

Overview of Hybrid Excitation in Electrical Machines

Energies, 2022
Hybrid excitation is a technology that combines the advantages of field windings and permanent magnets for inducing magnetic flux. This article studies the benefits of hybrid excitation and provides an outlook on their possible applications, such as wind
Gustav Mörée, Mats Leijon
doaj   +1 more source

Electromagnetic Design and Flux Regulation Analysis of New Hybrid Excitation Generator for Electric Vehicle Range Extender

Journal of Electrical and Computer Engineering, 2021
Aiming at the problem of uncontrollable magnetic field of permanent magnet generators, a new hybrid excitation generator (HEG) with parallel magnetic circuit is proposed.
Wenjing Hu, Xueyi Zhang, Huihui Geng, Ting Gao, Liwei Shi, Di You   +5 more
doaj   +1 more source

Control research on axial-flux hybrid-excitation generator for offshore vertical axis maglev wind turbine

Energy Reports, 2022
Vertical axis wind turbines generally have poor starting performance, but in recent years, they have gradually played a great potential in offshore floating wind power generation system.
Jiming Chen, Qiang Zhang, Jing Liu, Chongwang Xu, Jingnan Zhu   +4 more
doaj   +1 more source

Enhancing the Performance of DFIG Wind Turbines Considering Excitation Parameters of the Insulated Gate Bipolar Transistors and a New PLL Scheme

Frontiers in Energy Research, 2021
The major aim for achieving the successful synchronization of a wind turbine system to the grid is to mitigate electrical and mechanical stresses on the wind generator.
Kenneth E. Okedu, Kenneth E. Okedu, Hind F. A. Barghash   +2 more
doaj   +1 more source

Hybrid excitation synchronous generators for island operation

IET Electric Power Applications, 2012
Hybrid excitation synchronous machines (HESMs), which combine the best features of traditional electrically excited synchronous machines (SMs) and permanent magnet synchronous machines (PMSMs), are investigated. Such machines provide energy efficiency benefits over traditional field-winding-excited machines, especially in the lower power region upto a ...
K. Kamiev, J. Nerg, J. Pyrhönen, V. Zaboin, V. Hrabovcová, P. Rafajdus   +5 more
openaire   +1 more source

Fractional-order Sliding Mode Control of Hybrid Drive Wind Turbine for Improving Low-voltage Ride-through Capacity

Journal of Modern Power Systems and Clean Energy, 2023
A hybrid drive wind turbine equipped with a speed regulating differential mechanism can generate electricity at the grid frequency by an electrically excited synchronous generator without requiring fully or partially rated converters.
Ziwei Wang, Wenliang Yin, Lin Liu, Yue Wang, Cunshan Zhang, Xiaoming Rui   +5 more
doaj   +1 more source

Optimal PID Controllers for AVR System Considering Excitation Voltage Limitations Using Hybrid Equilibrium Optimizer

Machines, 2021
Automatic voltage regulator (AVR) represents the basic voltage regulator loop in power systems. The central part of this loop is the regulator, which has parameters that define the speed of the voltage regulation, quality of responses, and system ...
Martin Ćalasan, Mihailo Micev, Milovan Radulović, Ahmed F. Zobaa, Hany M. Hasanien, Shady H. E. Abdel Aleem   +5 more
doaj   +1 more source

Dynamic Performance of a Hybrid Synchronous Machine with Ultra-High XD/XQ Ratio

ABUAD Journal of Engineering Research and Development, 2023
This paper presents a hybrid synchronous machine with ultra-high XD/XQ ratio. A conventional synchronous machine has two components of output power; the excitation and the reluctance component.
Linus Uchechukwu Anih, Eugene Okenna Agbachi, Emeka Simon Obe   +2 more
doaj   +1 more source

Sizing and Energy Management of a Hybrid Locomotive Based on Flywheel and Accumulators [PDF]

, 2009
The French National Railways Company (SNCF) is interested in the design of a hybrid locomotive based on various storage devices (accumulator, flywheel, and ultracapacitor) and fed by a diesel generator.
Jaafar, Amine, Sareni, Bruno, Roboam, Xavier, Jeunesse, A., Jeunesse, Alain, Akli, Cossi Rockys   +5 more
core   +1 more source