Yayın tarihi için Mühendislik ve Mimarlık Fakültesi listeleme
Toplam kayıt 550, listelenen: 41-60
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A Novel Power Control Strategy for Wind-Driven Permanent Magnet Synchronous Generator Based on a Single Leg Multi-Mode Power Converter
(IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015-03-22)This paper presents a novel power control strategy for a hybrid power supply system consisting of wind-driven permanent magnet synchronous generator (PMSG) and energy storage device. In this study, a single leg multi-mode ... -
Strain modulated band gaps of semiconducting zigzag single walled carbon nanotubes
(NATL INST OPTOELECTRONICS, 1 ATOMISTILOR ST, PO BOX MG-5, BUCHAREST-MAGURELE 76900, ROMANIA, 2015-06-24)Strain can alter the electronic properties of materials. At the nanoscale, small displacements of atoms could have large effects. In this study, we have examined how elastic strain can modify the energy band gaps of ... -
Critical aspects of wind energy systems in smart grid applications
(PERGAMON-ELSEVIER SCIENCE LTD, THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAND, 2015-08-10)Wind energy is an important contributor of modern power systems as a renewable energy source. However, wind energy poses new challenges because of its unique characteristics, such as limited predictability, short-term and ... -
Performance Characteristic of Digital Peak Current Mode Control Switching Power Supply
(IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015-09-08)The purpose of this paper is to discuss performance characteristic of digital peak current mode control switching power supply. The proposed method can capture the peak current value in real time by using the voltage ... -
Theoretical Guidelines for the Utilization of Instructional Social Networking Websites
(Anadolu Üniversitesi Fen Bilimleri Enstitüsü, 2015-10-01)In the past 10 years, the internet has been transformed, along with the emergence of interaction and communication technologies. Indeed, there has been an emerging movement in the interaction and communication technologies. ... -
Hibrit Akış Tipi Sıralama Probleminde Üstünlük Özellikleri Ve Genetik Algoritma Yardımı İle İş Sıralama
(YILDIZ TECHNICAL UNIV, YILDIZ CAMPUS, BESIKTAS, ISTANBUL, 34349, TURKEY, 2015-11-03)Products are accessed easier with the industrial revolution. Product accessibility increases the customer demand. Consequently, to satisfy increased customer demands companies expand their manufacturing capacities. After ... -
Improvement in Transient Response of Fast P Control DC-DC Converter with Static Model
(IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015-11-22)The purpose of this paper is to propose the digital control method that is comprised of the fast P control and model control for an improvement of the transient response of the dc-dc converter. The electronic devices are ... -
A Consideration of Signal Frequency Detector in Digital Peak Current Mode DC-DC Converter
(IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015-11-22)The purpose of this paper is to reveal the designing of the static characteristic of the digital peak current mode dc-dc converter using a voltage controlled oscillator (VCO). In the proposed method, it is able to sample ... -
Miniaturization of Buck-Boost DC-DC Converter with Fast P Control
(IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015-11-22)This paper presents a consideration about miniaturization of buck-boost dc-dc converter with the fast P control. From frequency characteristics, it is identified that fast P control method is useful to suppression of output ... -
A Consideration of Loss Component in Model Control DC-DC Converter
(IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015-11-22)Recently, the energy saving is required. It is necessary for the energy saving to operate the electric device in the sleep mode. Therefore, the output voltage rises abnormally because the dc-dc converter is required the ... -
Design of Power Control Unit for Heat Recovery Device Used in Renewable Energy System
(IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015-11-22)Heat recovery devices are used for saving energy especially for the renewable energy systems because of effective usage of electrical energy while providing air conditioning in spaces which needs fresh air. These devices ... -
A New Quick Response Digital Control DC-DC Converter with Dynamic Unstable Gain
(IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2015-11-22)In this paper, we present a new quick response digital control dc-dc converter based on a dynamic unstable gain to improve transient response. In the proposed method, the proportional gain is set to the small value in the ... -
Multi-Period Prediction of Solar Radiation Using ARMA and ARIMA Models
(ELSEVIER SCIENCE BV, SARA BURGERHARTSTRAAT 25, PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS, 2015-12-09)Due to the variations in weather conditions, solar power integration to the electricity grid at a high penetration rate can cause a threat for the grid stability. Therefore, it is required to predict the solar radiation ... -
Seven Level Asymmetric Cascade Inverter with Space Vector PWM Added PR Control
(IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2016)Inverters are used to convert the DC energy to AC energy for renewable energy conversation or high power industrial applications. Asymmetric inverters are preferred about their some advantages. Nowadays, control of inverters ... -
Design a Grid Tie Inverter for PMSG Wind Turbine using FPGA & DSP Builder
(IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2016)The recent makeshift in fuel choice, renewable energy sources has been considered as the most popular form of its kind because of its environment friendly approaches, less cost tariff policy and the natural fuel abundance. ... -
Improvement for Fast Response of Current Sensorless Model Control DC-DC Converter
(IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA, 2016)The switching power supply is required the wide load range operation for the energy saving. In such a situation, the output voltage must be regulated. The model control is able to regulate the output voltage, because the ... -
Domains of Dynamic Instability of FGM Conical Shells Under Time Dependent Periodic Loads
(Springer Nature, 2016-02)On the basis of the dynamic version of linear Donnell type equations and with deformations before instability taken into account, the dynamic instability of simply supported, functionally graded (FG) truncated conical ... -
Rational approximations for solving cauchy problems
(BISKA Bilişim Teknoloji, 2016-08-16)In this letter, numerical solutions of Cauchy problems are considered by multivariate Pad´e approximations (MPA). Multivariate Pad´e approximations (MPA) were applied to power series solutions of Cauchy problems that solved ... -
On the numerical solution of differential-algebraic equations (DAEs) by Laguerre Polynomials approximation
(BISKA Bilişim Teknoloji, 2016-12-01)In this study, we investigate numerical solution of differential-algebraic equations (DAEs) using the Laguerre polynomials approximation. Two different problems are solved using the Laguerre polynomials approximation and ... -
Numerical solution of the neutral functional-differential equations with proportional delays via collocation method based on Hermite polynomials
(BISKA Bilişim Teknoloji, 2016-12-20)In this paper, a collocation method based on Hermite polynomials is presented for the numerical solution of the neutral functional-differential equations (NFDEs) with proportional delays. By using Hermite polynomials and ...
