Trends in Electrical Engineering
Volume 5, Issue 3 (2015)
Published
Table of contents
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A 32-Bit Booth Multiplier Design Using GDI Logic Style
Abstract: Gate diffusion input (GDI) is the newest technology of designing a low-power digital combinational circuit. This logic allows reducing power dissipation, delay and area of any digital logic circuit. The gate diffusion input logic allows implementation of a wide range of any complex logic function. These functions can be realized using only two transistors. This technique is preferred for designing fast using less number of transistors while improving logic level …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 1–5 Read article
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A New Methodology for Reliability Analysis of Interconnected Power System by using Improved Genetic Algorithm
Abstract: Reliability of interconnected power system is an important parameter in power system analysis. Reliability of power system is measured by reliability indices. Analysis of reliability indices of interconnected power system is usually based on contingency enumeration approach or statistical approach. These methods have some limitations. Moreover, for large systems, these methods are not applicable. In this paper, an improved genetic algorithm based method is described for reliability indices calculation of …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 109–113 Read article
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Modeling of The DFIG Wind Turbine
Abstract: This paper studies the power-speed characteristics and the fundamentals of wind electrical systems along with the modeling of the various wind turbine structures and simulation of the same using MATLAB-SIMULINK. It deals with the vector control and modeling of the Doubly-Fed Induction Generator (DFIG), which can maintain the DC link voltage. This paper focuses on the analysis of traditional decoupled d-q vector control approaches for control of DFIG wind turbines. …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 114–118 Read article
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Analysis and Modeling of Acoustic Noise in the Switched Reluctance Motors with Finite Element Method
Abstract: Due to high importance of noise in switched reluctance motor (SRM), a coupled electromagnetic-structure simulation model is created for this motor using ANSYS finite element (FE) package. Since the main reason for producing noise and vibration in the SRM is the radial force applied to the stator pole, the radial force waveform is predicted using the 2D FE transient analysis in the developed electromagnetic model. Determination of the frequency modes …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 17–22 Read article
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Matlab/Simulink Implementation and Analysis of SVPWM, SPWM and THIPWM: A Modular Approach
Abstract: The SVPWM technique has become more popular today than ever before due to the availability of fast digital systems for implementing this switching scheme. This is the preferred switching scheme for three phase inverters when compared to traditional SPWM. This paper describes a modular implementation and analysis of three popular switching methods employed in voltage source inverters: Space Vector Pulse Width Modulation (SVPWM), Sinusoidal Pulse Width Modulation (SPWM) and Third …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 23–35 Read article
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Performance Analysis of Conventional Direct Torque Control Strategy for Wide Range Speed Control of Induction Motor Drives
Abstract: Decoupled control of induction motor drives is possible using Direct Torque Control (DTC) method which is very simple control approach paralleled to field oriented control. It is very good alternative for applications like traction or automobile where direct torque control is needed. But speed control from zero to rated or even beyond rated speed is required in such applications. Torque ripples, variable switching frequency and poor low speed performance are …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 36–45 Read article
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Comparative Performance Analysis of Swarm and Intelligent Evolutionary Techniques for Optimal Design of Distribution Transformer
Abstract: This paper addresses the method of optimal design of a three phase distribution transformer using Genetic Algorithms (GA), Particle Swarm Optimization (PSO) and Teaching-Learning-Based-Optimization Algorithm (TLBO). The design and analysis programs have been developed for constrained optimal design with cost as the objective function. The active part cost of the transformer has been minimized keeping in view BEE (Bureau of Energy Efficiency) standards and constraints. A design example on a …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 46–58 Read article
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Implementation of a Solar PV-Wind Hybrid System using MATLAB/SIMULINK
Abstract: This paper presents the simulation and analysis and control of a hybrid system based on solar and wind system employing a dc-dc boost converter and permanent magnet synchronous generator. Maximum power point tracking controllers of solar PV and wind system are operating on perturb and observe method that extract the maximum power from solar and wind sources. It requires the sensing of dc voltage and current output of solar PV …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 59–70 Read article
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Health Assessment of Oil Immersed Transformer Using Fuzzy Logic
Abstract: A transformer is an electrical device that transfers energy between two or more circuits through electromagnetic induction. Commonly, transformers are used to increase or decrease the voltages of alternating current in electric power applications. Mineral oil treats heart of the transformer, its functions are to insulate, suppress corona and arcing, and to serve as a coolant. The oil helps cool the transformer. Because it also provides part of the electrical …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 6–16 Read article
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Power Factor Correction Using Parallel Boost Converter
Abstract: Power factor, the ratio between the active or average power and the apparent power forms a very essential parameter of the power system. It is indicative of how effectively the active power of the system has been utilized. With rapid development in power semiconductor devices, the usage of power electronic systems has expanded to a new and wide application range that include residential, commercial, aerospace and many others. Power electronic …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 71–88 Read article
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Detailed Modeling Concepts, Stability Analysis and Emerging Trends in Wind Farm: A Survey
Abstract: Wind is omnipresent and found abundant in nature. This paper deals with an in-depth literature survey of wind energy conversion systems (WECS), their classification, and modeling of various sub-systems of WECS. The control methodologies adopted for transient, voltage, rotor angle, frequency and dynamic stability of WTGs connected to grid to remain within margins, is also studied. In addition to this, different controlling techniques for controlling grid side converter and rotor …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 89–108 Read article