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Research Paper

PIC controller based power factor improvement and harmonic reduction by using single-phase active power filter: a case study and prototype

Abstract In This paper presents a technique for single-phase power factor correction of non-linear loads employing an active power filter. The current control strategy is the same used in the boost pre-regulator, which is the average current mode technique. The project will focus on the design methodology and the analysis of the control strategy which allows the compensation of harmonics and phase displacement of the input current, for single and multiple non-linear and linear loads. Experimental results of an active filter controlling a 200W to the 1KW rectifier with a capacitive filter, a 58OW multiple loads, which consists of a rectifier with a capacitive filter are presented.”In the last years, the use of electronic equipment has been increasing rapidly. This equipment draws The current from the AC mains has harmonic components, which leads to low power factor, low efficiency, interference in some instruments and communication equipment by the EMI, overtaxed electrical-distribution systems, overheated transformers and electromagnetic fields. A classical solution is the use of passive filters to suppress harmonics in power systems. However, passive filters have many disadvantages, such as large size, resonance, and fixed compensation characteristics. Therefore, it does not provide a complete solution. The most usual single-phase non-linear load is the frontend rectifier followed by a bulk capacitor, which draws current from the input during its charging. The boost pre-regulator is used to reduce the harmonic contents and improves the power factor. The boost pre-regulator has some disadvantage because it cannot be used in equipment already in service, and it is applied only to one kind of non-linear load which is the front end rectifier followed by a bulk capacitor. A very interesting solution is the use of a single-phase active power filter, which is connected in parallel with then on-linear loads. The active power filters concept uses in power electronics to produce harmonic components which cancel the harmonic components from the non-linear loads. It can limit harmonics to acceptable levels and can adapt itself in case of harmonic component alteration or even changes in then on-linear loads types. Usually, the technique used to control the single-phase active filter senses the non-linear load current and calculates its harmonics. This project will focus on the design and the control strategy for a shunt single-phase active power.

Published by: Ajit Manohar Bansode

Author: Ajit Manohar Bansode

Paper ID: V4I2-1652

Paper Status: published

Published: April 16, 2018

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Technical Notes

Techniques to test web application system based on scenarios

Software Testing is the most significant stage in Software Development Life Cycle. The overall aim of any software industry is to provide quality to the end user. To ensure high-quality software it is required to test. Testing ensures all the requirements are met and the software/application is bug-free. As we are aware websites are rapidly increasing day by day and testing needs to be done to ensure if the site is user-friendly to the end user and there are no bugs in the production environment. This paper mainly focuses on Web application testing, types of web application testing and black box testing techniques. There are many testing techniques used to optimize the test cases, this paper mainly explains the most commonly used techniques used for the web application testing.

Published by: Reddy Sangeetha DM

Author: Reddy Sangeetha DM

Paper ID: V4I2-1646

Paper Status: published

Published: April 16, 2018

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Research Paper

Heat recovery analysis of boiler furnace using refractory materials

Now a day failure of refractory material in boiler furnace which is applied for different sites and different applications is the major problem has been faced by boiler manufacturing industries and they are trying to solve this. Different reasons for failure can be inappropriate transportation problem and loose application of refractory, excessive temperature developed in the shell, sigma phase embrittlement, failure of anchors, improper storage of material etc. The materials and its properties used for refractory are studied here with its different types. This report is related to the thermal analysis of refractory which is 305 mm thick and temperature distribution at the certain distance by using ANSYS software.3D Model is drawn in solid works and then imported to ANSYS for next analysis. By applying thermal conditions we get the results. This project is sponsored by Thermax where they want to get temperature distribution and the surface temperature of ceramic paper which is on an outer side of refractory facing to the environment.

Published by: Anagha Jadhav, Dr. R. R. Arakerimath

Author: Anagha Jadhav

Paper ID: V4I2-1833

Paper Status: published

Published: April 16, 2018

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Research Article

Criteria to consider for a successful performance testing tool selection

To inform our audience about the criteria for a successful performance testing tool selection for testing performance on any software stack. The right test tool enables the productivity, optimization, and scale required. It provides the opportunity to find best test tool and evaluate its services faster, and establish successful implementation using it.

Published by: Rama R Anem

Author: Rama R Anem

Paper ID: V4I2-1768

Paper Status: published

Published: April 16, 2018

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Research Paper

An experimental study to assess the effectiveness of planned teaching programme on knowledge regarding weaning diet among mothers of under five in the selected village of district Gurdaspur

Weaning is a systematic process of introduction of suitable food at the right time, in addition to mothers’ milk, in order to provide needed nutrients to the baby. If the baby is to maintain the expected rate of growth and remain healthy and well nourished, supplementary feeding has to be resorted to round about the 6th month of life. The present study aimed to assess the knowledge of mothers of under-five regarding weaning diet, the effectiveness of planned teaching programme regarding weaning and to find out the association between knowledge with selected demographic variables. The findings of the study revealed that the planned teaching programme was effective in increasing the knowledge level of mothers of under five. There was the significant association between education and monthly income of the family. There was no significant association among age, religion, occupation, living status, type of family, the frequency of meals, and source of information

Published by: Rachna Kumari

Author: Rachna Kumari

Paper ID: V4I2-1870

Paper Status: published

Published: April 16, 2018

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Research Paper

Bus recognition for the visually impaired person

This paper depicts a transport acknowledgment framework which points to the simplicity of voyaging and development of visually impaired individuals with the guide of sensor organize. For them to travel from one place to another place is a difficult task, so they need the special requirement to travel. The blind person gives the input about his destination using android app. The latitude and longitude of the present location of the blind person will be noted in the microcontroller of a blind unit with the help of GPS antenna. The stored information in the microcontroller of the blind unit is transmitted to bus unit through Zigbee system. Sign made in the transport that visually impaired individuals display in the station. Voice model and APR 9600 audio playback systems are used to update and inform the blind person about the bus arriving and reaching destinations. Audio output is generated by the voice synthesizer. The expected outcome of the project is to obtain an easy navigation system for blind people

Published by: Vandana K, Varsha V, Shambhavi, Namitha R, Madhu Patil

Author: Vandana K

Paper ID: V4I2-1912

Paper Status: published

Published: April 13, 2018

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