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Induction motor is the most popular load in the transportation systems like Hybrid vehicle, Traction and Propeller. Now-a-days most of the researches are done on hybrid vehicle. It is very important to study about the cost effective, efficiency and quality on induction motor performance. For easy transportation purpose the weight of the motor is low and similarly for the performance of the motor the...
Data mining is the process of extracting the hidden predictive model from large databases. It has various methods and algorithms. Classification is a supervised method, which builds a model for predicting the new instances. Different algorithms like decision tree, neural networks, support vector machines, k nearest neighbour, Bayesian classification are available for the classification. Decision tree...
Asset Management Systems (AMS) are pivotal to build reliable and safe smart grids. An important function of AMS is the monitoring and diagnosis of the power transformers. Various tests are performed on power transformers to detect incipient faults. Among the available methods, Dissolved Gas Analysis (DGA) has been widely used and shown promise. However, interpreting the results of the DGA is challenging...
In AC power system reactive power is one of the major concerns which affect the quality of power. So the compensation of reactive power is essential to improve the power quality. Using various FACTS controllers, the reactive power compensation will be done. In this proposed work the reactive power compensation was done by using static synchronous compensator (STATCOM). A STATCOM is one of the fundamental...
This paper presents a Synchronous Reference Frame Theory(SRF theory) based control strategy for Dynamic Voltage Restorer(DVR) using MATLAB/SIMULINK. The DVR is a normal three phase inverter which converts DC to AC and vice-versa using the dc link capacitor. Whenever utility is distorted by voltage related faults, DVR is active and it protects the load from utility distortions. The control strategy...
Imaging is a broad field which covers all aspects of the analysis, modification, compression, visualization, and generation of images. There are at least two major areas in imaging science in which applied mathematics has a strong impact: image processing, and image reconstruction. In image processing the input is a (digital) image such as a photograph, while in image reconstruction the input is a...
A Model Predictive -Direct Torque Control (MP-DTC) technique is proposed for Matrix Converter (MC)-based Permanent Magnet Synchronous Motor (PMSM) drive system, which reduces the torque ripples, does not need the duty cycle calculation, and ensures the fixed switching frequency. The predictive model of PMSM and MC is realized by means of State model. Then, the advanced MC-fed model predictive DTC...
Reactive power is a subject of great concern for the operation of Alternating Current (AC) power systems. It has always been a challenge to obtain the balance between a minimum amount of reactive power flow to maximize capacity for active power flow and a sufficient amount of reactive power flow to maintain a proper system voltage profile. This work mainly deals with the compensation of reactive power...
In solar energy conversion system the presence of harmonics pose a threat to the supply system. The Selective Harmonic Elimination (SHE) method is used for reducing the harmonics. Solar panel produces DC, which is converted to an AC using three-phase PWM inverter. The switching angles for the inverter are calculated using Differential Evolution (DE) algorithm. The required high voltage transfer gain...
Today the need for renewable energy sources is on the rise because of the acute energy crisis in the world. India has planned to produce 20 Giga Watt of solar power by the year 2020 whereas it has only produced less than half a Giga Watt as on December 2013. Solar power plays an important role in our India. The main objective of this work is to reduce the utility power consumption by the way of sharing...
The purpose of this paper is to develop the Sinusoidal Pulse Width Modulation (SPWM) for toggling the switches of Matrix Converter for its operation as several Power Electronics Converters. The SPWM generation is developed with the help of Quartus based Field Programmable Gate Array (FPGA). Quartus II is a software tool produced by Altera for analysis and synthesis of HDL design which enables the...
According to recent studies, most of the radio spectrum is being underutilized. Cognitive radio has been proposed as a solution to address the problem of spectrum underutilization. It allows the secondary users to occupy spectrum allocated to primary users if primary users do not use the allocated spectrum at the current time and location. To detect unused spectrum cognitive radio must perform spectrum...
This Paper presents the function of Single Phase Matrix converter as a Dual Converter (Bi-directional speed control of DC drive), Rectifier and also as Inverter. Sinusoidal Pulse Width Modulation (SPWM) technique is used to generate control pulses for the Matrix Converter switches to produce output. The switching sequences for the Matrix Converter to operate as a Dual Converter, Rectifier and Inverter...
This paper is a study in enhancing the scope of application of Rapid Prototyping (RP) parts through deposition or plating of thin metallic foils. The RP technology that is chosen for this study is fused deposition modelling (FDM) and the RP material on which plating is carried out is the thermoplastic material known as ABS. Through electroless and electrolytic deposition of nickel layers over the...
This paper possess the fuzzy segmented based performance analysis for the reconstruction of a non linear PET Liver image using fuzzy logic controlled Maximum Likelihood Expectation Maximization (MLEM). The various types of iteration method used are MAP, MLEM and OSEM. MLEM, an iteration approach, has more advantage for reconstructing the Positron Emission Tomography (PET) when comparing with the analytical...
This paper explains the image reconstruction in Positron Emission Tomography using Maximum a Posterior (MAP). Till date, Diagnostic reconstruction methods offer a direct mathematical solution for the edifice of an image. This tactic requires a minimization of a convex cost function which in turn results in many problems related to the computational difficulty. Further, Iterative techniques are based...
Gradual increase in the usage of electric vehicles in order to reduce the green house gas emission and shortage of conventional fossil fuels gave us the platform to discuss about this modified switched reluctance motor. The switched reluctance motor presented here is rotor and stator swapped one, in which the rotor part of the conventional SRM is kept as stationary part with windings in it and the...
This paper addresses a nonlinear PET Brain image reconstruction based on a weighted least-square (WLS). In previous years, the analytical approach was used to reconstruct the Positron Emission Tomography (PET). This approach requires a minimization of a convex cost function and accompanied by many problems related to the computational complexity. The poles apart iteration methods are Conjugate Gradient...
Establishing ownership of content is a burning issue in video processing be it on-line or otherwise. Here, in this paper, an attempt has been made to address the issue of proprietorship using the concept of random walk. While transmitting videos, it is natural that the videos are prone to various types of attacks. It may also be possible to extract watermarks at the competitors end. In this paper,...
Security is the most important thing in the world. Password is used for security but it does not provide the effective security. So single biometric is preferred but due to lack of reliability, it is not efficient. So Multibiometric is used. Multibiometric provides more reliability. Fingerprint and Iris are the most unique features because it is unchangeable anywhere most of the time, compare to other...
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