Vol 3 Issue 3 July 2015-September 2015

Abstract: Voltage instability is one of the major sources of power system insecurity. Modern power systems are operated to closer to stability limit due to economic and environmental constraints. The current scenario of modern power system is that, they are heavily loaded due to continuously increasing demand. Wind energy generation is the best solution to meet the continuously increasing demand. STATCOM, one of the FACTS device is the solution for voltage instability problems. The main purpose of the paper is to find the optimal location for the placement of STATCOM in a wind integrated power system for the enhancement of voltage stability. The analysis made in the paper is done with the power system analysis toolbox (PSAT), a powerful toolbox in MATLAB. Also this paper investigates the enhancement of voltage stability using STATCOM in a wind integrated central Travancore grid.

Keywords: Voltage stability, P-V curve, maximum loading point, STATCOM, wind integrated power system.

Title: Load Ability Improvement by Placing STATCOM in A Wind Integrated Power System

Author: Ashwini .L.H, Lakshmikanth Reddy .V

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract: A remote ECG monitoring system design method based on GPRS wireless communication is proposed. This method mainly uses LPC2138 controller, combined with SIM 900 GPRS module though AT instructions to devise ECG monitoring instrument. Design and develop remote ECG monitoring software in doctor’s workstation, realizing the remote monitoring of ECG signals.

Keywords: GPRS, ECG monitoring, LPC 2138.

Title: Design of Remote ECG Monitoring System Based On GPRS

Author: SUPRIYA B. LATE, PROF. DILIP S. BHOSALE

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract: The focus of this paper is effectuation of Inter IC (IIC) protocol interface for serial communicating purpose using V H DL and field programmable gate array of Spartan 3E board of cyclone II FPGA. To enable devices to communicate with each other over a serial data bus without data loss. Many serial communication protocols are proposed like SPI, CAN, UART. IIC protocol is advantageous in terms of simplicity of operation, less pin counts etc. Complete operation of Inter IC protocol includes read and write mode of operation. Read and write operation depends on which mode is selected and corresponding signals are generated. The complete module is designed in using active HDL tool of FSM approach and implemented on FPGA using Xiling software.

Keywords: IIC, SCL, SDA, VHDL, FPGA.

Title: VLSI Architecture for Serial Communication Inter–IC Protocol

Author: Prachi Ikhar, Prof. S. N. Rawat

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract: To get sufficient amount of yield from our land there exist no alternative of irrigation. To reduce the cost of irrigation, to reduce the waste of water and to keep people save from current shocks the designed and implemented Wireless Automated Irrigation System Using Lab VIEW will play an important role. The system checks the moisture amount in the soil through soil moisture sensor. The solenoid valve will automatically pump water into the irrigation field. By using this type of moisture sensor, the nature of soil can easily find out whether the soil is wet or dry. If it is dry, it will be watered automatically. In this system, the main controlling device is microcontroller Atmega32. Here soil moisture sensor will provide the status of the soil to the microcontroller, depending on that; microcontroller will display the status of the soil on the LCD and switch on or off the pumping motor through relay. The aim of this research is to design and implement a user friendly, reliable and automated wireless watering system. The system has simpler features designed with the objective of low cost and effective with less power consumption. It also has special feature of wireless transmission and reception the sensor values; also user can monitor the sensor values from remote computer through Lab VIEW.

Keywords: The Groove moisture sensor, Microcontroller, LCD, Relay, Solenoid valve, Lab VIEW, Wireless network.

Title: Design and Implementation of Wireless Automated Irrigation System

Author: Abu Rayhan, Sumi Akter, Monir Morshed, Md. Abdullah Al Mamun, Md. Atiar Rahman, Fazlul Huq

International Journal of Electrical and Electronics Research

ISSN 2348-6988

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Abstract: Memories are affected by errors in radiation environment it causes data corruption. Some of the error correcting codes are widely used to protect the memory from the errors but the main disadvantage is this codes make encoder, decoder very complex and lead to delay and area overhead, so to maintain the memory reliability, it necessary to protect memory by using protection codes. Decimal Matrix Code (DMC) is used to correct the error in the memory, protect the memory from the Multiple Cell Upset (MCU) and it maintain the memory reliability. This coding technique is maximize the error correction capability, this is the advantage of this code, and it uses Encoder Reuse Technique (ERT) to minimize the area overhead. ERT uses DMC encoder to be a part of decoder and it reduces the redundant bits.

Keywords: Multiple Cell Upset (MCU), Decimal Matrix Code (DMC), Encoder Reuse Technique (ERT), Memory.

Title: REDUCING REDUNDANT BITS AND ENHANCED MEMORY RELIABILITY USING DECIMAL MATRIX CODE

Author: V.Vithya, Dr. P. Sakthivel

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract: Electrocardiogram (ECG) is the time varying signal represents the heart’s electrical activity. The signal provides the information of coronary heart diseases, rhythm disorders etc. The classification of ECG signal is difficult since the morphological and temporal characteristics of ECG signal shows significant variations for different patients under different physical conditions. Many techniques available for analysis such as Neuro-Fuzzy, Self-organizing maps etc,. This uses time-plane features ST, R, T segments thus increasing the computational complexity. In this paper, we use cross wavelet transform for the analysis and classification of electrocardiogram (ECG) signals. The cross-correlation between two time varying signals gives a measure of similarity between two waveforms. The application of the continuous wavelet transform to two time varying signals and the cross examination of the two decompositions reveal localized similarities in time and frequency.  The application of the cross wavelet transform to signal yields wavelet cross spectrum (WCS) and wavelet coherence (WCOH). The proposed algorithm analyzes ECG data utilizing cross wavelet transform and explores the resulting spectral differences. A pathologically varying pattern from the normal pattern in the QT zone of the inferior leads shows the presence of inferior myocardial infarction. A normal beat ensemble is selected as the absolute normal ECG pattern template, and the coherence between various other normal and abnormal subjects is computed. The WCS and WCOH of various ECG patterns show distinguishing characteristics over two specific regions R1 and R2, where R1 is the QRS complex area and R2 is the T-wave region. The Physikalisch-Technische Bundesanstalt diagnostic ECG database is used for evaluation of the methods. A heuristically determined mathematical formula extracts the parameter from the WCS and WCOH. Empirical tests establish that the parameters are relevant for classification of normal and abnormal cardiac patterns. The overall accuracy, sensitivity and specificity after combining the three leads are obtained.

Keywords: Cross wavelet transform, fiducial points, interpolation, myocardial infarction, wavelet coherence (WCOH).

Title: Similarity Measurement Technique of Two ECG Signals Analysis and Pattern Classification

Author: Anil Kumar S. N, Dr. Sarika Tale

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract: A systematic method for deriving multiport converters (MPCs) from the full bridge (FB) converter (FBC) and bidirectional dc–dc converters (BDCs) is proposed in this paper through sharing the parasitized switching legs by the BDCs and the FBC. By employing the proposed method, families of FB and BDC-based MPCs (FB-BDC-MPCs), including some existing ones, are developed for renewable generation systems with the merits of simple topology, reduced devices, and single-stage power conversion. Voltage regulations between any two ports can be achieved by employing pulse width modulation and phase-angle shift control scheme. Furthermore, zero-voltage switching for all the switches can be realized in the proposed FB-BDC-MPCs. A typical four-port converter developed by the proposed method, named buck/boost four-port converter (BB-FPC), is analyzed in detail as an example in terms of operation principles, design considerations, and control strategy. Experiment results have been carried out on a prototype of BB-FPC, which demonstrate the feasibility and effectiveness of the proposed topology derivation method.

Keywords: Bidirectional dc–dc converter (BDC), full-bridge converter (FBC), multiport converter (MPC), renewable power based servo Drive.

Title: MULTI-INPUTPORT FULL BRIDGE BIDIRECTIONAL DC-DC CONVERTER FOR RENEWABLE ENERGY BASED DC DRIVE

Author: Dr. P. SELVAM, S.SUBRAMANIAN, G.RAMAKRISHNA PRABU

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract: This paper presents the FMEA (Failure Modes and Effect Analysis) as a methodology to analyze the electro-pneumatics system. A minor failure may lead to severe impact on the performance of the equipment. The Failure Mode and Effect analysis is a primarily a quality planning tool to identify failure and effect and prioritize the risk on system, product or service. It is used to establish control, prioritize process and prevent process errors. Thus, the various possible causes of failure and their effects of an electro-pneumatic system used in along with ways of prevention are discussed in the work.

Keywords: FMEA, Risk Priority Number (RPN), Recommendations, Detection Number, Severity Number, Occurrence.

Title: Failure Modes and Effect Analysis of Electro-Pneumatics System

Author: Priya Banerjee

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract: Power system consists of three main aspects: generation, transmission and distribution, so a proper and efficient analysis of each of these aspects is required. Distributed Generation (DG) refers to any electric power production technology that is integrated within distribution systems, close to the point of use. DG in a distribution network has several advantages such as reduction in line losses, emission pollutants and overall costs due to improved efficiency, and improvement of voltage profile, power quality, system reliability and security. In order to insert a DG many researchers have applied different methods and algorithms unit in a distribution network, first of all we have to find a suitable location. DG can be inserted on a sensitive load location which shows maximum losses on varying its load. Lot of work has been done over the investigation of sensitive load location. The aim of this paper is to explore the impact of insertion of single DG at first load sensitive location using line losses. The analysis of results show that there is increase in the line losses at some individual bus level but overall both active and reactive losses of a bus system decreases.

Keywords: Distributed Generation, Sensitive load.

Title: Impact of Distributed Generation on Line Losses for Sensitive Load Location

Author: Malika Raina, Navdeep Batish, Jang Bahadur Singh

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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Abstract: Classifying text with respect to sentiment is being used very often in diverse fields these days. Number of movies releasing worldwide is increasing day by day. As the movie market is becoming more and more popular, movie reviews help in providing an insight to the movies. With number of reviews increasing up to thousands or even lakhs, it is imperative to classify them in the best possible manner to provide apt ratings as per the scale. Conventionally, sentiment prediction systems just look at words in isolation and provide positive and negative scores to the sentences. In this research, we aim to employ a statistical technique (Naïve Bayes classification) to the movie review data and find the overall sentiment of the document. We compare the conventional prediction system with a new technique to exploit features. The entire research is done in parts. Mining features of reviews that have been commented on the websites, Identifying relevant corpus to apply algorithms on after mining the corpus and finally concluding the results. We apply methods using R Studio software. I conclude by examining factors and devising ways for feature selection in the above mentioned technique.

Keywords: Sentiment classification, review, text mining, feature extraction.

Title: Bigram Extraction and Sentiment Classification on Unstructured Movie Data

Author: Shubham Tripathi

International Journal of Electrical and Electronics Research

ISSN 2348-6988 (online)

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