Results 21 to 30 of about 6,349 (258)

Analytical Model to Calculate Radial Forces in Permanent-Magnet Synchronous Machines

open access: yesApplied Sciences, 2021
There are three principal sources of noise and vibration in electrical machines: electromagnetic sources, mechanical sources, and aerodynamic sources. Nowadays, one of the major advantages of permanent-magnet synchronous machines is their torque density.
Iratxo Gómez   +3 more
doaj   +1 more source

Model Validation of Synchronous Motors With a New Standstill Measurement Technique

open access: yesIEEE Access, 2023
Permanent magnet synchronous machines (PMSM), synchronous reluctance machines (SynRM), and electrically excited synchronous machines (EESM) are widely used in the industry and transportation sectors.
Andrea Credo   +3 more
doaj   +1 more source

Analysis of Direct Torque Control Response to Stator and Rotor Faults in Permanent Magnet Synchronous Machines

open access: yesEnergies, 2023
Direct-torque-control-driven permanent magnet synchronous machines eliminate the need for a position sensor while providing improved torque dynamics. However, the structure, regulation principle and nature of compensation of hysteresis-based controllers ...
Ibrahim M. Allafi, Shanelle N. Foster
doaj   +1 more source

Quantitative comparison of electromagnetic performance of electrical machines for HEVs/EVs

open access: yesCES Transactions on Electrical Machines and Systems, 2017
In this paper, various types of sinusoidal-fed electrical machines, i.e. induction machines (IMs), permanent magnet (PM) machines, synchronous reluctance machines, variable flux machines, wound field machines, are comprehensively reviewed in terms of ...
Z. Q. Zhu, W. Q. Chu, Y. Guan
doaj   +1 more source

Distribution Grid Stability—Influence of Inertia Moment of Synchronous Machines

open access: yesApplied Sciences, 2020
This paper shows the influence of grid frequency oscillations on synchronous machines coupled to masses with large moments of inertia and solves the maximum permissible value of a moment of inertia on the shaft of a synchronous machine in respect to the ...
Tomáš Petrík   +4 more
doaj   +1 more source

Eliminating rare earth permanent magnets on low‐speed high‐torque machines: A performance and cost comparison of synchronous reluctance machines, ferrite permanent magnet‐synchronous reluctance machines and permanent magnet synchronous machines for a direct‐drive elevator system

open access: yesIET Electric Power Applications, 2021
In the last few years, the reduction of the dependency on rare‐earth magnets has been one of the main concerns for electrical machine manufacturers. Synchronous reluctance machines (SynRMs) and ferrite permanent magnet‐assisted synchronous reluctance ...
Gurutz Artetxe   +4 more
doaj   +1 more source

Permanent Magnet Synchronous Machines

open access: yesEnergies, 2019
Interest in permanent magnet synchronous machines (PMSMs) is continuously increasing worldwide, especially with the increased use of renewable energy and electrification of transports.
Sandra Eriksson
doaj   +1 more source

Synchronous machine performance under geomagnetic disturbances

open access: yesHigh Voltage, 2021
Geomagnetic disturbances (GMDs) are known to disturb power system equipment performance. The danger is associated with geomagnetically induced currents (GICs) occurring at the Earth's surface during GMD.
Ilja Boguslawsky   +3 more
doaj   +1 more source

A Discrete Current Controller for High Power-Density Synchronous Machines

open access: yesEnergies, 2022
This paper proposes a complex vector discrete current controller based on the flux-linkage data to solve the current loop oscillation problem of high power-density synchronous machines.
Hongtai Ma   +5 more
doaj   +1 more source

Two‐dimensional analytical model for double field excitation synchronous machines

open access: yesIET Generation, Transmission & Distribution, 2021
This paper examines a two‐dimensional analytical magnetic model presented for double excitation synchronous machines (DESMs). DESMs employ both permanent magnets (PMs) and excitation coils (ECs), and therefore they offer the advantages of permanent ...
Alireza Hosseinpour   +2 more
doaj   +1 more source

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