Results 11 to 20 of about 116,954 (322)

Small‐signal analysis of multiple virtual synchronous machines to enhance frequency stability of grid‐connected high renewables

open access: yesIET Generation, Transmission & Distribution, 2021
The virtual synchronous machine technology is considered as an important technique to effectively control the shortcomings of renewable energy‐based power electronics interfaces, providing backup inertia and regulating grid stability. Conventionally, the
Thongchart Kerdphol   +7 more
doaj   +1 more source

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

Vectorial formalism for analysis and design of polyphase synchronous machines [PDF]

open access: yes, 2003
A vectorial formalism for analysis and design of polyphase synchronous machines without reluctance and saturation effects is described. We prove the equivalence of such a machine with a set of magnetically independent machines, which are electrically and
BOUSCAYROL, Alain   +2 more
core   +5 more sources

Stability analysis of a grid-connected VSC controlled by SPC [PDF]

open access: yes, 2018
In the near future a large part of traditional generation based on conventional synchronous machines (SM) will be replaced by renewable generation based on voltage source converters (VSC).
Candela García, José Ignacio   +3 more
core   +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

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