Results 41 to 50 of about 1,688,898 (159)

Prediction of the true harmonic current contribution of nonlinear loads using NARX neural network

open access: yesAlexandria Engineering Journal, 2018
This paper presents a method to predict the load current harmonics injected into micro grid power systems using Nonlinear Auto Regressive neural networks with eXogenous input (NARX neural network).
A.Y. Hatata, M. Eladawy
doaj   +1 more source

INFLUENCE OF OPERATING CONDITIONS ON LOADS AND FATIGUE STRENGTH IN A ROD COLUMN OF PCP

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2020
The relevance of the research is caused by the need to increase the reliability and resource of progressing cavity pumps, used in complicated well operating conditions, since they have low reliability in comparison with electrical submersible pumps, that
Kamil R. Urazakov, Bulat M. Latypov
doaj   +1 more source

A Study of Motor Bearing Fault Diagnosis using Modulation Signal Bispectrum Analysis of Motor Current Signals [PDF]

open access: yes, 2013
Failure of induction motors are a large concern due to its influence over industrial production. Motor current signature analysis (MCSA) is common practice in industry to find motor faults. This paper presents a new approach to detection and diagnosis of
Chen, Zhi   +5 more
core   +1 more source

Assessment of the impact of stator iron losses on the energy performance of a submersible electric motor under a stochastic assembly procedure of a post-repair submersible electric motor

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов
Relevance. In the Khanty-Mansi Autonomous Okrug–Yugra, there are more than 89 thousand units of the total operational fund of oil wells. This allows for stable production of about 41% of Russian oil.
Vladimir Z. Kovalev   +10 more
doaj   +1 more source

Comparison of Induction and PM Synchronous motor drives for EV application including design examples [PDF]

open access: yes, 2012
Three different motor drives for electric traction are compared, in terms of output power and efficiency at the same stack dimensions and inverter size. Induction motor (IM), surface-mounted permanent-magnet (PM) (SPM), and interior PM (IPM) synchronous ...
Pellegrino, Gian-Mario Luigi   +4 more
core   +1 more source

On the Influence of Stator Slot shape on the Energy Conservation Associated with the Submersible Induction Motors [PDF]

open access: yesAmerican Journal of Applied Sciences, 2011
Problem statement: A good design of Submersible Induction Motor is required to maintain maximum efficiency level. This can be achieved in one way by optimum design of magnetic circuit. The magnetic circuit of an Induction Motor is formed by the combination of Stator core, Rotor core and air gap.
openaire   +1 more source

Thermal analysis of induction and synchronous reluctance motors [PDF]

open access: yes, 2005
In this paper, the thermal behavior of two induction motors (2.2 and 4 kW, four poles) and two synchronous reluctance motors [(SynRMs) transverse-laminated] are investigated and compared.
Staton, D.   +10 more
core   +1 more source

Integrated thermal and electromechanical processes model of a submersible induction motor

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов
Relevance. More than 60% of oil wells in Russia are equipped with submersible electric centrifugal pumps. The tendency to increase the share of low- and medium-flow wells changes the operating conditions of submersible electric centrifugal pumps, which ...
Mikhail S. Ershov   +2 more
doaj   +1 more source

INTENSITY SETTER FOR A DEVICE OF SMOOTH START OF SUBMERSIBLE PUMP ELECTRIC MOTOR

open access: yesElectrical engineering & Electromechanics, 2016
Purpose. Development of an intensity setter, which in a rational law changes the opening thyristor the voltage regulator and effectively to changing power supply voltage stator windings of the electric pump deepening, ensuring a smooth start in a wide ...
V.I. Lobov, K.V. Lobova
doaj   +1 more source

Modeling and testing of digital protection relay for an induction motor [PDF]

open access: yes, 2010
The project details the modelling of the induction motor SEL701 Relay in PowerFactory. In order to prove operational reliability, both off-line and on-line testing were implemented to verify the characteristic curve of the relay by measuring trip times ...
Cho, Sungmin
core  

Home - About - Disclaimer - Privacy