Results 61 to 70 of about 23,396,150 (160)
Detection of Inter-turn Faults in Five-Phase Permanent Magnet Synchronous Motors
Advances in Electrical and Computer Engineering, 2014 Five-phase permanent magnet synchronous motors (PMSMs) have inherent fault-tolerant capabilities. This paper analyzes the detection of inter-turn short circuit faults in five-phase PMSMs in their early stage, i.e. with only one turn in short circuit by
SAAVEDRA, H., RIBA, J.-R., ROMERAL, L.
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The Influence of Measurement Methodology on the Accuracy of Electrical Waveform Distortion Analysis
Measurement Science Review, 2018 The present paper covers a review of documents that specify measurement methods of voltage waveform distortion. It also presents measurement stages of waveform components that are uncommon in the classic fundamentals of electrotechnics and signal theory,
Bartman Jacek, Kwiatkowski Bogdan
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Optimal designs for 3D shape analysis with spherical harmonic descriptors [PDF]
We determine optimal designs for some regression models which are frequently used for describing 3D shapes. These models are based on a Fourier expansion of a function defined on the unit sphere in terms of spherical harmonic basis functions.
Dette, Holger +2 more
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Discrete harmonic analysis associated with ultraspherical expansions [PDF]
, 2015 We study discrete harmonic analysis associated with ultraspherical orthogonal functions. We establish weighted l^p-boundedness properties of maximal operators and Littlewood-Paley g-functions defined by Poisson and heat semigroups generated by certain ...
Castro, Alejandro J. +7 more
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Identifying harmonic attributes from online partial discharge data [PDF]
, 2011 Partial discharge (PD) monitoring is a key method of tracking fault progression and degradation of insulation systems. Recent research discovered that the harmonic regime experienced by the plant also affects the PD pattern, questioning the conclusions ...
Rowland, S.M. +4 more
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Current Controller with FOPI Modification for VSI-based Active Power Filter
Emitor: Jurnal Teknik ElektroThe integration of photovoltaic (PV) systems into the grid, combined with nonlinear loads and bidirectional power flows, significantly impacts grid voltage stability and total harmonic distortion (THD) in low-voltage distribution systems.
Antonius Doddy Tyas Prasetyo +2 more
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Harmonic Analysis of a Nonstationary Series of Temperature Paleoreconstruction for the Central Part of Greenland [PDF]
Учёные записки Казанского университета: Серия Естественные науки, 2016 The results of the investigations of a transformed series of reconstructed air temperature data for the central part of Greenland with an increment of 30 years have been presented.
T.E. Danova, B.V. Perelygin
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Advances in Electrical and Computer EngineeringWind power generation system with five-phase PMSG contains a large amount of third harmonic in the stator phase current of the machine side due to the dead-time effect of the converter and non-sinusoidal air-gap magnetic field.
JIANG, Z., ZHANG, J.
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Energies, 2016 This paper presents a novel double-stator permanent-magnet machine integrated with a triple rotor magnetic gear structure, which is proposed to address problems of mechanical geared generators for low-speed applications.
Shehu Salihu Mustafa +4 more
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Some properties of harmonic mappings [PDF]
A harmonic map between Riemannian manifolds satisfies, in local coordinates, a second order semi-linear elliptic system of equations. This system of equations arise as the Euler-Lagrange equations of a natural Dirichlet or energy integral on maps between
Sealey, Howard C. J.
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