Results 71 to 80 of about 494,648 (339)
Simulation of electrical faults of three phase induction motor drive system [PDF]
, 2009 The title of this project is Simulation of electrical faults of three phase induction motor drive system. Induction motor or asynchronous motor is a type of alternating current motor where power is supplied to the rotor by means of electromagnetic ...
Muhammad Alif, Mohd Nor
core
Optimal torque control of fault-tolerant permanent magnet brushloss machines [PDF]
, 2003 Describes a novel optimal torque control strategy for fault-tolerant permanent magnet brushless ac drives operating in both constant torque and constant power modes.
Atallah, K., Howe, D., Wang, J.B.
core +1 more source
Advanced Engineering Materials, EarlyView.The utilization of direct energy deposition (DED)‐arc additive manufacturing processes in industrial applications is increasing, and these processes have the potential for multi‐material applications. This work provides a overview of the state of research in DED‐arc made functional graded structures, to establish a link to potential industrial ...
Kai Treutler, Volker Wesling
wiley +1 more source
International Journal of Electrical Power & Energy SystemsThis paper proposes a new solution for the classification of short-circuits in medium-voltage distribution grids. The solution requires the measurements of the phase voltages at the time of the short-circuit and the voltage amplitudes of the short ...
Piotr Łukaszewski, Łukasz Nogal
doaj +1 more source
Numerical Modeling of Space–Time Characteristics of Plasma Initialization in a Secondary Arc
Energies, 2019 A numerical model based on the finite element simulation software COMSOL was developed to investigate the secondary arc that can limit the success of single-phase auto-reclosure solutions to the single-phase-to-ground fault.
Jinsong Li +4 more
doaj +1 more source
Disconnection of single-phase rooftop PVs after short-circuit faults in residential feeders
Australian Journal of Electrical and Electronics Engineering, 2016 AbstractThis paper presents an analysis on the disconnection time of single-phase rooftop photovoltaic systems (PVs), located in a three-phase four-wire low voltage distribution feeder, after a single-phase and a three-phase short-circuit fault on the low-voltage feeder.
Hosseinian Yengejeh, H. +2 more
openaire +3 more sources
Advanced Engineering Materials, EarlyView.AlCrFeCoNi high entropy alloy coating is applied on steel using electrospark deposition. The microstructure evolution and phase transformation of the as‐deposited and heat‐treated coatings is characterized and discussed. Reduced microhardness and yield strength are measured after heat treatment.
Jihui Yan +4 more
wiley +1 more source
Microwave Slow-Wave Structure and Phase-Compensation Technique for Microwave Power Divider [PDF]
, 2014 In this paper, T-shaped electromagnetic bandgap is loaded on a coupled transmission line itself and its electric performance is studied. Results show that microwave slow-wave effect can be enhanced and therefore, size reduction of a transmission-line ...
Gao, S. S. +4 more
core +1 more source
Production of Metallic Foam Precursors Using Current‐Activated Pressure‐Assisted Densification
Advanced Engineering Materials, EarlyView.A powder compaction metallurgical method, known as current‐activated pressure‐assisted densification, is applied to enhance the compaction of metal foam precursors. This method improves precursor quality by achieving higher density, lower electrical resistivity, and more uniform pore nucleation in the resulting foams, reducing energy consumption and ...
Tillmann Robert Neu +2 more
wiley +1 more source
PLL-less Nonlinear Current-limiting Controller for Single-phase Grid-tied Inverters: Design, Stability Analysis and Operation Under Grid Faults [PDF]
, 2016 A nonlinear controller for single-phase grid-tied inverters, that can operate under both a normal and a faulty grid with guaranteed closed-loop stability, is proposed.
Konstantopoulos, G.C. +2 more
core +1 more source