Güncel Gönderiler: Elektrik-Elektronik Mühendisliği-Makale Koleksiyonu
Toplam kayıt 103, listelenen: 81-100
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Optimizing karnopp friction model parameters of a pendulum using RSM
(Elsevier Science Bv, 2014)Accurate mathematical models of physical systems are essential for understanding the behaviour of actual systems under different operating conditions and for designing control systems. In mechanical systems, difficulty of ... -
Effective utilization of cables and transformers using passive filters for non-linear loads
(Elsevier Sci Ltd, 2015)In the literature, it is well known that transformers and cables have excessive losses or overheating under non-sinusoidal current conditions. Accordingly, they have reduced current carrying capabilities (or loading ... -
Bb-bc, pso and imo algorithms for economic dispatch problem of wind-thermal power plants
(Gazi Üniv, 2016)In this study, for examining the effect of wind power systems on energy systems, three new heuristic methods were compared to solve economic dispach problem of wind-thermal (hybrid) plants. These three heuristic algorithms ... -
A power resolution for cost effective compensation and harmonic source detection in smart power grids
(Istanbul Univ, 2017)It is seen from the preliminary work [1] of this paper that in the literature there is a need for a power resolution, which can be utilized for (i) the direct provision of the optimum compensation capacitor's power and ... -
Effect of the different T-Joint design at power transformer
(Gazi Univ, 2016)In the modern manufacturing processes, sheets of the transformer core composed as stacked with 5 pieces of cut parts which have top and bottom yoke and 3 legs. Also it is seen literature resarch about a part of experimental ... -
Increasing PV hosting capacity in distorted distribution systems using passive harmonic filtering
(Elsevier Science Sa, 2017)Adding new capacity expansion alternatives using distributed generation (DG) technologies, particularly penetration of renewable energy, has several economical, and technical advantages such as the reduced system costs, ... -
Cogging torque reduction by optimal design of PM synchronous generator for wind turbines
(Pergamon-Elsevier Science Ltd, 2017)In this study, design and optimization of a surface-mounted permanent magnet synchronous generator (PMSG) have been carried out for use in low power wind turbines. In the successive optimization steps based upon the ... -
An algorithm for estimating derating of induction motors supplied with under/over unbalanced voltages using response surface methodology
(Inst Engineering Technology-Iet, 2017)One of the adverse effects of unbalanced three-phase voltages on the induction motors (IMs) is overheating of the windings. The IMs should be loaded at less than their rated power in case of unbalanced supply voltages to ... -
Intrinsically switchable frequency reconfigurable barium strontium titanate resonators and filters
(Ieee-Inst Electrical Electronics Engineers Inc, 2017)Multimode transceivers for the next generation of wireless devices require new and innovative frequency-agile microwave circuit designs to reduce their complexity, size, and cost. Intrinsically switchable frequency ... -
Optimal resonance-free third-order high-pass filters based on minimization of the total cost of the filters using Crow Search Algorithm
(Elsevier Science Sa, 2017)The most common damped filters (DFs) are the second-order, third-order, C-type, and double-tuned filters. Other DFs such as the first-order and band-pass filters exist, but their high operating losses considerably diminish ... -
Investigation of dielectric properties of heterostructures based on ZnO structures
(De Gruyter Poland Sp Zoo, 2017)The voltage and frequency dependence of dielectric constant epsilon', dielectric loss epsilon", electrical modulus M", M', loss tangent tan delta and AC electrical conductivity sigma(AC) of p-Si/ZnO/PMMA/Al, p-Si/ZnO/Al ... -
A cross-shape coil structure for use in wireless power applications
(MDPI AG, 2018)This paper presents a novel coil structure employing two parallel-connected subunit rectangular coils. The structure is based on the fact that the rectangular coils are less sensitive to misalignment along its longer side. ... -
A circuit model-based analysis of magnetically coupled resonant loops in wireless power transfer systems
(Istanbul Univ, 2018)Magnetically coupled resonant loops can be represented by a lumped element circuit model. Each parameter in the lumped element model can be expressed as a function of loop geometry and the separation between the loops; ... -
Ecebuntu - an innovative and multi-purpose educational operating system for electrical and computer engineering undergraduate courses
(Istanbul Univ, 2018)ECEbuntu is a free, easily distributable, customized operating system based on Ubuntu 12.04 long term support (LTS) designed for electrical/electronic and computer engineering (ECE) students. ECEbuntu is aimed at universities ... -
A frequency-tuned magnetic resonance-based wireless power transfer system with near-constant efficiency up to 24 cm distance
(Tubitak Scientific & Technical Research Council Turkey, 2018)In magnetic resonance-based wireless power transfer systems, the main challenge arises from varying distances between coils during power transfer because distance variations ultimately reduce the power transfer efficiency. ... -
Monitoring, surveillance, and management of the electromagnetic spectrum: current issues in electromagnetic spectrum monitoring
(Istanbul Univ, 2018)This paper discusses the current aspects of the surveillance and management of the electromagnetic spectrum under various topics that are vital to wireless communications. On the basis of the recent technological advancements ... -
A new wind turbine generating system model for balanced and unbalanced distribution systems load flow analysis
(MDPI, 2018)Wind turbine generating systems (WTGSs), which are conventionally connected to high voltage transmission networks, have frequently been employed as distributed generation units in today's distribution networks. In practice, ... -
A cross-shape coil structure for use in wireless power applications
(MDPI, 2018)This paper presents a novel coil structure employing two parallel-connected subunit rectangular coils. The structure is based on the fact that the rectangular coils are less sensitive to misalignment along its longer side. ... -
Comparative evaluation of common passive filter types regarding maximization of transformer's loading capability under non -sinusoidal conditions
(Elsevier Science Sa., 2018)This study aims to comparatively evaluate the widely known five passive harmonic filters as single-tuned, double-tuned, triple-tuned, damped-double tuned and C-type ones by regarding their contribution on the loading ... -
Design of a multi-channel quartz crystal microbalance data acquisition system
(IOP Publishing, 2018)In this study a multi-channel data acquisition system has been designed, by which mass changes in small quantities can be monitored and recorded by means of a quartz crystal microbalance (QCM) technique. The whole system ...
