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Karunya Institute of Technology and Sciences
Developing 5 bus system
Chitra S, Jayakumar J, Venkateshkumar P, Shanty Chacko, and Sivabalan
International Journal of Electrical and Electronics Research, eISSN: 2347470X, Pages: 51-56, Published: 30 March 2022 FOREX Publication
In many residential buildings the electrical wires of individual houses are laid in the same conduit pipe and some mistakes could be made in identifying similar coloured wires when they are laid in same conduit pipe. Most of the faults are caused by the neutral interconnection in the wiring system. Usually neutral wires are connected to neutral bus within the panel board or switchboard, and are "bonded" to earth ground. In our secondary distribution, tree system of supply is mostly utilized. The voltage of each phase to neutral will be maintained at rated value even during the unbalanced load conditions. If neutral wire connection is poor the voltage at each phase will be different from one another, such an isolated neutral point is called floating neutral and the voltage of the point is always changing. This is the reason for over voltage causing damage to appliance’s which should be protected. In this paper, a smart system that identifies power leakage and provides over voltage protection to the residential building is proposed.
Honey Baby, Jayaraj Jayakumar, Mobi Mathew, Mohamed G. Hussien, and Nallapaneni Manoj Kumar
IET Renewable Power Generation, ISSN: 17521416, eISSN: 17521424, Published: 2022 Institution of Engineering and Technology (IET)
Reshma Jose, Shanty Chacko, J. Jayakumar, and T. Jarin
International Journal of Pattern Recognition and Artificial Intelligence, ISSN: 02180014, Published: 2022 World Scientific Pub Co Pte Ltd
Image processing plays a significant role in various fields like military, business, healthcare and science. Ultrasound (US), Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) are the various image tests used in the treatment of the cancer. Detecting the liver tumor by these tests is a complex process. Hence, in this research work, a novel approach utilizing a deep learning model is used. That is Deep Belief Network (DBN) with Opposition-Based Learning (OBL)-Grey Wolf Optimization (GWO) is used for the classification of liver cancer. This process undergoes five major processes. Initially, in pre-processing the color contrast is improved by Contrast Limited Adaptive Histogram Equalization (CLAHE) and the noise is removed by Wiener Filtering (WF). The liver is segmented by adaptive thresholding following pre-processing. Following that, the kernelizedFuzzy C Means (FCM) method is used to segment the tumor area. The form, color, and texture features are then extracted during the feature extraction process. Finally, these traits are categorized using DBN, and OBL-GWO is employed to enhance system performance. The entire evaluation is done on Liver Tumor Segmentation (LiTS) benchmark dataset. Finally, the performance of the proposed DBN-OBL-GWO is compared to other models and their achievements are proved. The proposed DBN-OBL-GWO achieves a better accuracy of 0.995, precision of 0.948 and false positive rate (FPR) of 0.116, respectively.
Dr. K. Sasikala, Dr. J. Jayakumar, Dr. A. Senthil Kumar, Dr. Shanty Chacko, and Dr. Hephzibah Jose Queen
International Journal of Electrical and Electronics Research, eISSN: 2347470X, Pages: 550-556, Published: 2022 FOREX Publication
The main aim of this paper is to highlight the benefits of Machine Learning in the power system applications. The regression-based machine learning model is used in this paper for predicting the power system analysis and Economic analysis results. In this paper, Predictive ML models for two modified IEEE 14-bus and IEEE-30 bus systems, integrated with renewable energy sources and reactive power compensative devices are proposed and developed with features that include an hour of the day, solar irradiation, wind velocity, dynamic grid price, and system load. An hour-wise input database for the model development is generated from monthly average data and hour-wise daily curves with normally distributed standard deviations. A very significant Validation technique (K Fold cross validation technique) is explained. Correlation between Input and output variable using spearman’s correlation analysis using Heat maps. Followed by the Multiple Linear Regression based Training and testing of the Modified IEEE 14 and IEEE30 Bus systems for base load case, 10% and 20% load increment with the 5-fold cross validation is also presented. Comparative analysis is performed to find the best fit ML Model for our research.
P. H. Femy and J. Jayakumar
Energy Harvesting and Systems, ISSN: 23298774, eISSN: 23298766, Published: 2022 Walter de Gruyter GmbH
Abstract Energy consumption in the field of transportation comes next to industrial consumption worldwide. If transportation is completely powered by renewable energy, the utilization of fossil fuels can be drastically reduced, which will result in a lesser amount of greenhouse gas emissions. Electric vehicles (EVs) can act as an alternative to make transportation pollution-free. Large-scale usage of EVs causes high electricity demand on the supply system. This problem can be overcome by utilizing renewable energy sources (RESs) for Electric Vehicle charging. Due to the unpredictability of RESs, coordinating EV charging with other loads and renewable generation is problematic. By using EVs as energy units, power fluctuations in the electric grid can be compensated. This paper presents a summary of recent research in the domain of integration of electric vehicles (EVs) to the smart grid. Electric vehicles-smart grid integrated systems face several issues related to communication, grid infrastructure and control in the future power system. Smart grid technologies are summarized in Section 2. The existing research articles in this area are classified into two based on the purpose: EVs integration into the electric grid and Vehicle to grid services. Finally, the research gaps and future scope of incorporating electric vehicles with renewable energy sources and the Smart grid are highlighted.
Khammampati R Sreejyothi, P. Venkatesh Kumar, and J. Jayakumar
8th International Conference on Advanced Computing and Communication Systems, ICACCS 2022, Pages: 1403-1408, Published: 2022 IEEE
The importance of the Micro grid is increasing day to day because of reducing transmission cost, In comparison to the grid, microgrids have more renewable energy sources and it is easier to spot faults. If the main grid goes down, the microgrid can keep consumers comfortable by supplying power to homes and businesses for a while. The microgrid is best suitable in hilly areas and remote locations. Microgrid delivers important loads with a high-quality, consistent energy supply. This paper presents a Power quality improvement in Micro Grid used SRF theory. The microgrid is the interconnection of hybrid sources and load. The hybrid sources are PV cell, Fuel Cell, and Super Capacitor. By integrating these small sources, microgrids are implemented in generating the electrical power at load demand. The voltage and reactive power support to the external grid are examined using rDSTATCOM deployed at various locations throughout the microgrid. The simulation results were verified in MATLAB/SIMULINK software.
Hephzibah Jose Queen, J. Jayakumar, and T. J. Deepika
Lecture Notes in Electrical Engineering, ISSN: 18761100, eISSN: 18761119, Volume: 795, Pages: 291-302, Published: 2022 Springer Singapore
Hephzibah Jose Queen, Jayakumar J., and Deepika T. J.
Indonesian Journal of Electrical Engineering and Computer Science, ISSN: 25024752, eISSN: 25024760, Pages: 1260-1268, Published: December 2021 Institute of Advanced Engineering and Science
<p>The primary aim of this work is to feature the advantages of integrating natural source of energy from the solar and wind to the prevailing electric power systems. Two types of analysis are carried out in two test systems (standard and modified test systems) and the outcome of the test systems are compared. The two analyses are technical analysis and economic analysis. The stability of the voltage is analyzed under technical analysis and the price of energy consumed from the electric grid is calculated and analyzed under the economic analysis. Dynamic hourly load data, hourly solar radiation, hourly wind velocity, and dynamic electricity prices are considered for the standard IEEE system and modified test system (with the integration of RES). Voltage stability index (L-Index) and price of the electricity consumed from electric grid are found for standard test system and the outcome is compared with the outcome of modified test systems. MATLAB coding is done for techno-economic analysis for both test systems. It is inferred from the outcome that the integration of renewable energy sources fairly contributes to the economic benefit of the system by lowering the power purchased from the grid and enhance the stability of the system.</p>
Khammampati R Sree Jyothi, P. Venkatesh Kumar, and J. JayaKumar
E3S Web of Conferences, ISSN: 25550403, eISSN: 22671242, Volume: 309, Published: 7 October 2021 EDP Sciences
This paper presents a review of DSTATCOM Topologies and power quality control Techniques. The used topologies are Three-phase Three-wire and Three-phase four-wire and control techniques are Instantaneous reactive power theory(IRP), Synchronous Reference Frame Theory(SRF), Model Predictive Control (MPC), Sliding mode control(SMC), Adaptive Neuro-fuzzy interface systems(ANFIS) and Artificial intelligence based controllers. These control techniques are used to mitigate the reactive power compensation, load balancing, Neutral current compensation, harmonics reduction and maintains the Total harmonic Distortion in IEEE519 standards. Performance investigated in Single-phase Distribution systems by connecting with STATCOM and without DSTATCOM in MATLAB/SIMULINK
Manjinder Singh and Harpreet Kaur
International Journal of Electrical and Electronics Research, eISSN: 2347470X, Pages: 57-65, Published: 2021 FOREX Publication
Filling dead pixels or eliminating unwanted things is typically preferred within the applications of remotely sensed images. In proposed article, a competent image imprinting technique is demonstrated to resolve this drawback, relied nonlocal total variation. Initially remotely sensed images are effected by ill posed inverse problems i.e. image destripping, image de-noising etc. So it is required to use regularization technique to makes these problems well posed i.e. NLTV method, which is the combination of nonlocal operators and total variation model. Actually this method can make use of the good features of non-local operators for textured images and total variation method in edge preserving for color images. To optimize the proposed variation model, an Ant Colony Optimization algorithm is used in order to get similarity with the original image. And evaluate the outcomes of proposed technique with the existing technique i.e. MNLTV optimized by Bregmanized-operator-splitting algorithm which is a prediction based method. The investigation of all outcomes confirms the efficacy of this rule.
Anita Philips, Jayakumar Jayaraj, Josh F.T., and Venkateshkumar P.
International Journal of Pervasive Computing and Communications, ISSN: 17427371, eISSN: 1742738X, Pages: 596-610, Published: 2021 Emerald
Purpose Digitizing of the electrical power grid promotes the advantages of efficient energy management alongside the possibilities of major vulnerabilities. A typical inadequacy that needs critical attention to ensure the seamless operation of the smart grid system remains in the data transmission between consumer premises smart devices and the utility centres. Many researches aim at establishing security protocols to ensure secure and efficient energy management resulting in perfect demand–supply balance. Design/methodology/approach In this paper, the authentication of the smart meter data has been proposed with enhanced Rivest–Shamir–Adleman (RSA) key encryption using an efficient way of generating large prime numbers. The trapdoor one-way function applied in the RSA algorithm makes it almost impossible for the reverse engineering attempts of cracking the key pair. Findings The algorithm for generating prime numbers has been tested both with the convention method and with the enhanced method of including a low-level primality test with a first few hundred primes. The combination of low-level and high-level primality tests shows an improvement in execution time of the algorithm. Originality/value There is a considerable improvement in the time complexities when using the combination method. This efficient generation of prime numbers can be successfully applied to the smart meter systems, thereby increasing the strength and speed of the key encryption.
Jayaraj Jayakumar, Balakrishnan Nagaraj, Shanty Chacko, and P. Ajay
Wireless Communications and Mobile Computing, ISSN: 15308669, eISSN: 15308677, Volume: 2021, Published: 2021 Hindawi Limited
Testing and implementation of integrated and intelligent transport systems (IITS) of an electrical vehicle need many high-performance and high-precision subsystems. The existing systems confine themselves with limited features and have driving range anxiety, charging and discharging time issues, and inter- and intravehicle communication problems. The above issues are the critical barriers to the penetration of EVs with a smart grid. This paper proposes the concepts which consist of connected vehicles that exploit vehicular ad hoc network (VANET) communication, embedded system integrated with sensors which acquire the static and dynamic parameter of the electrical vehicle, and cloud integration and dig data analytics tools. Vehicle control information is generated based on machine learning-based control systems. This paper also focuses on improving the overall performance (discharge time and cycle life) of a lithium ion battery, increasing the range of the electric vehicle, enhancing the safety of the battery that acquires the static and dynamic parameter and driving pattern of the electrical vehicle, establishing vehicular ad hoc network (VANET) communication, and handling and analyzing the acquired data with the help of various artificial big data analytics techniques.
Hephzibah Jose Queen, Jayakumar J., Deepika T. J., K. Victor Sam Moses Babu, and Surya Prakash Thota
IEEE Access, eISSN: 21693536, Pages: 123504-123516, Published: 2021 Institute of Electrical and Electronics Engineers (IEEE)
This paper proposes a predictive techno-economic analysis in terms of voltage stability and cost using regression-based machine learning (ML) models and effectiveness of the analysis is validated. Predictive analysis of a power system is proposed to address the need for faster and accurate analyses that would aid in the operation and control of modern power system. Several methods of analyses including metaheuristic optimization algorithms, artificial intelligence techniques and machine learning algorithms are being developed and used. Predictive ML models for two modified IEEE 14-bus and IEEE-30 bus systems, integrated with renewable energy sources (solar and wind) and reactive power compensative device (STATCOM) are proposed and developed with features that include hour of the day, solar irradiation, wind velocity, dynamic grid price and system load. An hour-wise input database for the model development is generated from monthly average data and hour-wise daily curves with normally distributed standard deviations. The data feasibility tests and output database generation is performed using MATLAB. Linear and higher order polynomial regression models are developed for the 8760hr database using Python 3.0 in JupyterLab and a best-fit predictive ML model is identified by analysing the coefficients of determination. The voltage stability and cost predictive ML models were tested for a 24hr input profile. The results obtained and the comparison with the expected values are furnished. Prediction of the outputs for the test data validate the accuracy of the developed model.
Journal of Green Engineering, ISSN: 19044720, eISSN: 22454586, Pages: 1648-1667, Published: 2021
Anita Philips, J. Jayakumar, and M. Lydia
Advances in Intelligent Systems and Computing, ISSN: 21945357, eISSN: 21945365, Volume: 1227, Pages: 117-132, Published: 1 January 2021 Springer Singapore
Journal of Green Engineering, ISSN: 19044720, eISSN: 22454586, Pages: 13150-13176, Published: December 2020
Journal of Green Engineering, ISSN: 19044720, eISSN: 22454586, Pages: 11205-11232, Published: November 2020
International Journal of Renewable Energy Research, eISSN: 13090127, Pages: 1844-1856, Published: 2020
V.M. Dileepan and J. Jayakumar
International Journal of Electric and Hybrid Vehicles, ISSN: 17514088, eISSN: 17514096, Pages: 315-348, Published: 2020 Inderscience Publishers
Rama Rao Bomma, J. Jayakumar, and T. Bogaraj
Lecture Notes in Electrical Engineering, ISSN: 18761100, eISSN: 18761119, Volume: 626, Pages: 515-540, Published: 2020 Springer Singapore
Honey Baby*, , J. Jayakumar, and
International Journal of Innovative Technology and Exploring Engineering, eISSN: 22783075, Pages: 619-626, Published: October 2019 Blue Eyes Intelligence Engineering and Sciences Engineering and Sciences Publication - BEIESP
In the modern era, most of the utility grid is connected with Renewable Energy resources (RERs). In addition to this, many power electronic converters and reactive power compensating devices are also incorporated into the existing grid. This makes the system complicated. Penetration of renewable energy resources affect many power system parameters like grid stability, quality of power, reactive power balance and Sufficient energy utilization. However, the Distributed Generation (DG) towards the power electronic interface creates some critical power quality events such as reactive power management, harmonics and voltage profile which makes the distributed system become a polluted one. This paper depicts the review of modelling and incorporation of various reactive power compensating devices like TCSC, SVC and STATCOM into RES. Power generation model of solar, wind and fuel farm is discussed in this paper. Reactive power compensating devices and its location and sizing are important for the stable and secure operation of the electric grid. Consequently, power quality issues, real-time interconnection issues and policies related to reactive power management are in this paper.
Shanty Chacko, , F. T. Josh, J. Jayakumar, , and
International Journal of Innovative Technology and Exploring Engineering, eISSN: 22783075, Pages: 467-472, Published: August 2019 Blue Eyes Intelligence Engineering and Sciences Engineering and Sciences Publication - BEIESP
Digital images that are compressed by JPEG compression schemes are affected by compression artifacts. The blocking artifacts and the ringing artifacts are the commonly seen compression artifacts. These artifacts need to be removed when we decompress the image for various applications. The objective of this work is to remove these artifacts without degrading the image. These compression artifacts can be reduced by low pass filtering of compressed mages. Low pass filtering of images cause loss of information whereby the images get blurred or the clarity of images get reduced. In this work, compressed image is first enhanced using linear enhancement technique and the resulting enhanced image is filtered using Gaussian type filter. The enhanced artifacts are removed more effectively when filtering is done in the enhanced image domain. After the removal of compression artifacts the linear enhancement is removed by the inverse of the transform which is used for linearly enhancing the image. After the removal of artifacts images will be of good quality which can be used in application areas like analysis medical image, analysis of satellite image, remote sensing and product inspection in industry.
Appadurai Anitha Angeline, Lazarus Godson Asirvatham, Duraisamy Jude Hemanth, Jayaraj Jayakumar, and Somchai Wongwises
Sustainable Energy Technologies and Assessments, ISSN: 22131388, Pages: 53-60, Published: June 2019 Elsevier BV
International Journal of Mechanical Engineering and Technology, ISSN: 09766340, eISSN: 09766359, Pages: 391-396, Published: February 2019
Indian Journal of Environmental Protection, ISSN: 02537141, Pages: 806-811, Published: 2019
Patent Number: 202041011809
Intelligent Integrated Control System for Electric Vehicle Battery