Results 91 to 100 of about 3,403,673 (242)

Evaluation of DC-link voltage ripple in five-phase PWM voltage source inverters

open access: yesThe Journal of Engineering, 2019
This paper presents the analysis of the DC-link voltage switching ripple in five-phase PWM voltage source inverters with balanced load. The analysis is particularly important for the design and selection of a DC-link capacitor making it possible to meet ...
M. Vujacic   +4 more
doaj   +1 more source

Sensorless speed control of a five-phase induction machine under open-phase condition

open access: yesThe Journal of Engineering, 2014
Recently, multiphase machines have been promoted as competitors to their three-phase counterparts in high-power safety-critical drive applications. Among numerous advantages of multiphase induction machine (IM) drives, self-starting and operation under ...
Ahmed S. Morsy   +3 more
doaj   +1 more source

Distribution System Voltage Management and Optimization for Integration of Renewables and Electric Vehicles: Research Gap Analysis [PDF]

open access: yes, 2013
California is striving to achieve 33% renewable penetration by 2020 in accordance with the state’s Renewable Portfolio Standard (RPS). The behavior of renewable resources and electric vehicles in distribution systems is creating constraints on the ...
Arghandeh, Reza   +4 more
core  

Dyadic Green's Functions and Guided Surface Waves for a Surface Conductivity Model of Graphene

open access: yes, 2008
An exact solution is obtained for the electromagnetic field due to an electric current in the presence of a surface conductivity model of graphene. The graphene is represented by an infinitesimally-thin, local and isotropic two-sided conductivity surface.
Chew W. C.   +3 more
core   +2 more sources

Dual-loop control strategy applied to PV/battery-based islanded DC microgrids for swarm electrification of developing regions

open access: yesThe Journal of Engineering, 2019
In this work, a dual-loop control strategy is applied to a highly distributed architecture of photovoltaic (PV)/battery-based DC microgrid, suitable for swarm electrification of developing regions.
Mashood Nasir   +5 more
doaj   +1 more source

Switchable Imbibition in Nanoporous Gold

open access: yes, 2014
Spontaneous imbibition enables the elegant propelling of nano-flows because of the dominance of capillarity at small length scales. The imbibition kinetics are, however, solely determined by the static geometry of the porous host, the capillarity, and ...
Duan, Huiling   +4 more
core   +2 more sources

Analysis of Steady-State Error in Torque Current Component Control of PMSM Drive

open access: yesAdvances in Electrical and Computer Engineering, 2017
The paper presents dynamic properties of a vector controlled permanent magnet synchronous motor drive supplied by a voltage source inverter. The paper deals with a control loop for the torque producing stator current.
BRANDSTETTER, P.   +2 more
doaj   +1 more source

Analysis of active harmonic compensation algorithms for grid-connected photovoltaic inverters / Aktyvusis harmonikų kompensavimas saulės elektrinių tinklo inverteriais – algoritmų analizė

open access: yesMokslas: Lietuvos Ateitis, 2014
A review of various standards, concerning distributed generation, and different Active Harmonic Compensation (AHC) or Active Power Filtering (APF) methods are presented in this paper. Short overview of each control method is given.
Andrius Platakis
doaj   +1 more source

Ferroelectricity induced by spin-dependent metal-ligand hybridization in Ba$_2$CoGe$_2$O$_7$

open access: yes, 2010
We have investigated the variation of induced ferroelectric polarization under magnetic field with various directions and magnitudes in a staggered antiferromagnet Ba$_2$CoGe$_2$O$_7$.
Furukawa, N.   +4 more
core   +1 more source

A Review on Weighting Factor Design of Finite Control Set Model Predictive Control Strategies for AC Electric Drives

open access: yesIEEE transactions on power electronics
Model predictive control (MPC) has been widely applied to ac electric drives over the last decade. Despite the proposed solutions, researchers are still seeking to find more effective solutions for weighting factor (WF) design, parameter dependency ...
Emrah Zerdali   +2 more
semanticscholar   +1 more source

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