Browsing Elektrik-Elektronik Mühendisliği-Makale Koleksiyonu by Issue Date
Now showing items 1-20 of 40
-
A fuzzy voltage regulator (FVR) for a stand-alone synchronous generator
(Taylor & Francis Inc, 2007)This study deals with terminal voltage control of a stand-alone synchronous generator using fuzzy logic based controller as a fuzzy voltage regulator (FVR) instead of classical automated voltage regulators (AVR). In order ... -
Optimal tuning of PI coefficients by using fuzzy-genetic for V/f controlled induction motor
(Pergamon-Elsevier Science Ltd, 2008)This paper presents a novel speed control scheme of an induction motor using genetic-fuzzy logic. The aim of this paper is to improve a new method of the optimal tuning of proportional integral controller coefficients in ... -
Modeling and control of V/f controlled induction motor using genetic-ANFIS algorithm
(Pergamon-Elsevier Science Ltd, 2009)This paper deals with modeling and performance analysis of the voltage/frequency (V/f) control of induction motor drives. The V/f control, which realizes a low cost and simple design, is advantageous in the middle to ... -
DSP-based sliding mode speed control of induction motor using neuro-genetic structure
(Pergamon-Elsevier Science Ltd, 2009)In this paper, a novel approach is presented for optimization of sliding mode controller parameters. The main purpose is to optimize sliding surface slope and thickness of the boundary layer. The tuning of the electrical ... -
Ripple reduction at speed and torque of step motors used on a two-axis robot arm
(Pergamon-Elsevier Science Ltd, 2010)This paper presents the control of two axis robot arm. The system is consisted of two step motors, robot arm, computer and PIC16F84A. One of them controls the robot arm via parallel port of the computer. The other one ... -
Performance comparison of the sun tracking system and fixed system in the application of heating and lighting
(King Fahd Univ Petroleum Minerals, 2010)In this work, a sun tracking system application is used for water heating and street lighting in Van. The solar photovoltaic system is designed for a house whose power is 5 kilo-Watts. An experimental setup is carried out ... -
3-d imaging of inhomogeneous materials loaded in a rectangular waveguide
(IEEE-Inst Electrical Electronics Engineers Inc, 2010)A Newton-type method for the reconstruction of inhomogeneous 3-D complex permittivity variation of arbitrary shaped materials loaded in a rectangular waveguide is presented. The problem is first formulated as a system of ... -
Apparent power definitions: A comparison study
(Praise Worthy Prize Srl, 2011)This paper examines the concept of apparent power: It advocates the idea that the apparent power quantifies an ideal situation that represents optimum energy flow conditions not only for the energy supplier, but for the ... -
Off-line tuning of a PI speed controller for a permanent magnet brushless DC motor using DSP
(Pergamon-Elsevier Science Ltd, 2011)In this paper, a new method of tuning Proportional Integral (PI) coefficients for a permanent magnet brushless DC (PMBLDC) motor drives is proposed. Artificial neural network is used to identify the whole system using ... -
An analysis on the nonactive powers for nonsinusoidal conditions
(Gazi Üniv., 2011)In this paper, the nonactive part of the apparent power is decomposed into three different components. The qualitative and quantitative analyses show that reactive power component of the power decomposition gives the power ... -
Optimization of pı parameters for dsp-based permanent magnet brushless motor drive using response surface methodology
(Pergamon-Elsevier Science Ltd, 2012)This paper proposes response surface methodology (RSM) for tuning Proportional Integral (PI) coefficients for a Permanent Magnet Brushless Direct Current (PMBLDC) motor drive. Overshoot and settling time data are obtained ... -
Effect of Nb doping on structural, electrical and optical properties of spray deposited SnO2 thin films
(Academic Press Ltd - Elsevier Ltd, 2013)Nb doped SnO2 transparent conducting thin films were deposited by spray pyrolysis method. Microstructural, morphological, electrical and optical properties of the films were investigated as a function of niobium (Nb) doping, ... -
Virtual laboratory for sliding mode and PID control of rotary inverted pendulum
(Wiley-Blackwell, 2013)This paper presents a new virtual laboratory tool which teaches sliding mode control (SMC) and proportional-integral-derivative (PID) control to graduate students. Additionally, it describes performance differences between ... -
A study on characterization of Al/ZnS/p-Si/Al heterojunction diode synthesized by sol-gel technique
(Elsevier Science BV, 2013)In this paper, we investigated the morphological, optical and electrical properties of sol-gel spin coated ZnS film and device performance of fabricated Al/ZnS/p-Si/Al heterojunction diode. AFM images showed that surface ... -
An investigation of the Nb doping effect on structural, morphological, electrical and optical properties of spray deposited F doped SnO2 films(
(Iop Publishing Ltd, 2013)F and Nb + F co-doped SnO2 thin films were deposited on glass substrates by the spray pyrolysis method. The microstructural, morphological, electrical and optical properties of the 10 wt% F doped SnO2 (FTO) thin films were ... -
Growth and characterization of Ag/n-ZnO/p-Si/Al heterojunction diode by sol-gel spin technique
(Elsevier Science Bv, 2013)Polycrystalline ZnO thin film was obtained on the p-Si for the heterojunction diode fabrication by sol-gel method. X-ray diffraction study showed that the texture of the film is hexagonal with a strong (002) preferred ... -
Synthesis of a Fe3O4/paa-based magnetic fluid for Faraday-rotation measurements
(Inst Za Kovinske Materiale I In Tehnologie, 2013)Highly water-soluble Fe3O4/PAA (polyacrylic acid) nanoparticles (NPs) were synthesized with the high-temperature hydrolysis method. We report the first demonstration of Faraday rotation (FR) for a magnetic fluid (MF) ... -
A current decomposition-based method for computationally efficient implementation of power resolution meters in non-sinusoidal single-phase systems
(Polska Akad Nauk, 2013)For non-sinusoidal single-phase systems, the classical apparent power has been divided into various components using different techniques. These power resolutions generally aim at to provide a tool for the accurate ... -
The effect of fluorine and tungsten co-doping on optical, electrical and structural properties of tin (IV) oxide thin films prepared by solgel spin coating method
(Technical Univ Wroclaw, 2013)Fluorine and tungsten co-doped tin(IV) oxide (WFTO) thin films have been prepared first time by a sol gel spin coating method. The effect of F and W co-dopant ratio on optical, electrical and structural properties of SnO2 ... -
W doped SnO2 growth via sol-gel routes and characterization: Nanocubes
(Elsevier Gmbh, 2013)The effects of W doping on the characteristical properties of SnO2 thin films prepared by sol-gel spin coating method were investigated. The SnO2 thin films were deposited at various W doping ratios and characterized by ...
