MIT-World Peace University (MIT-WPU) is a top educational institute located in Pune, India. It is recognized within&nbsp;UGC under Government of Maharashtra Act No. XXXV 2017.&nbsp;

It is part of the MIT group of institutions (established in 1983) which covers 10+ campuses across India and has more than 50,000+ students enrolled across various disciplines at a given point of time. The institute houses 15 schools ranging from Engineering &amp; Technology, Design, Pharmacy, Commerce, Governance among others. It offers undergraduate, postgraduate and PhD programs among different disciplines.&nbsp;

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MIT World Peace University

School of Electrical Engineering

Growing dependence of modern society on electrical energy has resulted into increasingly complex nature of electrical power systems. It requires operation of the network closer to their stability limits. This leads to compensated transmission lines. Installing capacitors of fixed or controllable value provides a viable solution to improve power system stability and also to optimize power flow transmission capability of electrical grids transmission capability of power grid, optimize power flow and to improve system stability. However, installations of capacitors results into changing directions and values of fault currents and voltages in the networks. It causes problems for protective relays and fault locators. Distance relay is prone to maloperate due to large variations in voltage and current. Since fault location and classification are important tasks to safe guard electric power systems, as per the literature survey various practical or theoretical schemes are used to attain the reliable protection system for transmission lines equipped with compensation capacitors. This paper highlights merits and demerits of different methodologies to enhance distance protection of compensated transmission lines. © 2015 IEEE.

Engineering and Technology

World University root node

2015 International Conference on Pervasive Computing: Advance Communication Technology and Application for Society, ICPC 2015

Recent developments in distance protection of compensated transmission lines

In this paper Levenberg-Marquardt, Conjugate gradient, Resilient back-propagation algorithms are compared for power quality monitoring. Three Networks are trained in MATLAB. Each network is trained with the single algorithm mentioned above. Data for training is generated with the help of numerical model of power quality events in MATLAB. Voltage sag and swell is taken into consideration. The networks are so trained that it should detect and classify the voltage sag/swell accurately. Training performance of each network is presented with the help of performance and validation graph. Trained networks are tested with the help of simulation model. Simulation model is made in MATLAB which can generate sag/swell of any magnitude for any time period. Algorithms are compared on the basis of the ability of trained network to detect as well as classify the sag/swell and the performance of training.

2015 Annual IEEE India Conference (INDICON)

Comparison between three back-propagation algorithms for power quality monitoring

A Robust Multi frame image Super Resolution Reconstruction (SRR) is a process which produces a better or superior quality, High Resolution (HR) image from multiple numbers of blurred noisy low resolution (LR) images of the similar scene, acquired under different conditions. It produces a high quality super resolution image with higher spatial frequency, reduced noise and image blur as compared to the original images. The inputs images can be in the form of medical images, surveillance footage, digital video, satellite terrain imagery, or images from many other sources. In many visual applications like military and civilian areas the imaging sensors used are having very poor resolution outputs. Due to some limitations i.e. cost or hardware, resolution cannot be improved by replacing imaging sensors, hence super resolution algorithms plays a crucial role in improving the resolution of the output image. The Super resolution (SR) algorithms can be implemented in such cases as SR algorithms is a low cost algorithm and easy to implement. Super Resolution Reconstruction (SRR) is a computationally intensive process. The purpose of this paper is to develop a super resolution reconstruction algorithm which can be useful to real time data and data generated synthetically. A fast and robust technique of Multi frame Super Resolution Reconstruction is presented where frame to frame motion estimation and image registration is developed iteratively using Lucas Canada Pyramidal optical flow algorithm. For the iterative approach, the high resolution image estimate obtained is the solution of Median Shift and Add method, along with Gaussian filter and down sampling. Further iteratively gradient back projection and gradient regularization is carried out to obtain High Resolution (HR) image. A MATLAB based GUI for Super Resolution Reconstructed image is developed which calculates the image quality parameters such as PSNR, RMSE, SD, SSIM and percentage change in pixels value in HR image with respect to original frame. A PSNR plot for different test vectors is plotted with respect to number of frames and number of iterations. A MATLAB based tool is also developed for synthetic data generation. The HR image of different test vectors (real and synthetic) are shown in the form of MATLAB based GUI developed with and without adaptive filters. The change in the image quality parameters like SD and SSIM with and without adaptive filters is also shown in the form of table. The proposed method and its experimental results show that there is significant improvement in image quality, maintaining the edge information and has a higher PSNR and better visual effect. © 2015 IEEE.

Proceedings - 1st International Conference on Computing, Communication, Control and Automation, ICCUBEA 2015

A matlab based GUI for multiframe super resolution reconstruction of different gray scale images with and without adaptive filter

Power Systems suffer from various types of faults such as Phase and Earth Faults. These faults lead to overcurrent in the circuits. Numerical Relays embedded with Digital Signal Processor (DSP) can be used to protect the system components as they can perform complex processing faster with higher accuracy and also avoid problem of false tripping. DSP based processing can also be optimized for real time. In this paper, TMS320F28335 based Implementation of Numerical Relay is discussed. TMS320F28335 is a floating point Digital Signal Controller (DSC). Short Time Fourier Transform (STFT) is used to detect the spurious signals and faults more accurately. The proposed overcurrent protection system is implemented on real time basis with the help of AntiAliasing filter and Signal Conditioning Circuit to scale the inputs from Current Transformer. Anti-Aliasing filter is designed based on the fault current simulation data generated using Power System Simulation Software. Fault current patterns generated are analyzed by calculating Fourier Transform coefficients that decide the filter specifications. Code Composer Studio (CCS) IDE is used for the development of algorithm. The paper discusses development of overcurrent protection algorithm based on RMS calculation for single phase circuits using TMS320F28335. The overcurrent relay Inverse Definite Minimum Time (IDMT) characteristics curves based on the simulated fault current data are used as basis and are implemented for Single Phase Circuits. © 2014 IEEE.

School of Electronics & Communication Engineering

Proceedings of 6th IEEE Power India International Conference, PIICON 2014

TMS320F28335 based single phase overcurrent protection Implementation using Numerical Relay

A different type of load draws non-sinusoidal current from the mains, degrading the power quality by causing harmonic distortion. These nonlinear loads appear to be prime sources of harmonic distortion in a power system. In addition, the harmonic currents produced by nonlinear loads can interact adversely with a wide range of power system equipment, most notably capacitors, transformers and motors, causing additional losses, overheating and overloading and interferences. The aim of this paper is to review an active power filter that commonly used to mitigate harmonics. Thus, to solve this harmonics problems The system is verified by simulation using Matlab/Simulink simulation package. The paper starts with a brief overview of harmonic distortion problems and their impacts on electric power quality, how the active power filter mitigate this problems and the verifying using Matlab software. The proposed filter minimizes the harmonic distortion is within an acceptable range

International Journal of Computational Engineering Research

Reduction In Harmonic Distortion Of The System Using Active Power Filter In Matlab / Simulink .

Magnetizing inrush current in transformer results from any abrupt changes of the magnetizing voltage. When a transformer is first energized, a transient current up to 10 to 50 times larger than the rated transformer current can flow for several cycles. This current is called as magnetizing inrush current. Magnitude of this current is dependent on number of parameters like switching instant of supply voltage, residual flux, the hysteresis characteristics of the transformer core, impedance of the primary circuit, etc. This magnetizing inrush current causes system disturbances and damages the transformer windings. To improve this situation inrush current is required to be reduced. This paper discusses inrush current limiters that reduce inrush current at the time of switching of the transformer. Here, inrush current limiters using power electronic converters like diode bridge with DC reactor and voltage source PWM converter are used. Simulations using MATLAB are carried out and results are tabulated. Experiment using DC reactor type inrush current limiter are carried out and results are given in the paper. {\textcopyright} 2012 IEEE.

PEDES 2012 - IEEE International Conference on Power Electronics, Drives and Energy Systems

Use of power electronic converters to suppress transformer inrush current

The power source in micro-grid (MG) is either atmosphere dependent source (e.g. wind generator, solar etc.) or it will be small hydro or diesel turbine. This introduces power quality concerns in MG. It is because of small power number (MW per Hz.) due to limited size of the system and limited resources for system stability. In this paper, a new application of the UPFC is introduced. The slightly modified UPFC can be used to improve the voltage profile of the micro-grid with or without grid connectivity. The proposed method will address the voltage stability concern in the MG using modified UPFC in low and medium voltage system. ©2010 IEEE.

2010 IEEE International Conference on Sustainable Energy Technologies, ICSET 2010

Application of UPFC for improving micro-grid voltage profile

Pole placement approach of controller design is capable of providing system stability, setpoint tracking and disturbance rejection. The proposed work focuses on design of a digital controller using pole placement method for magnetic suspension ball system which is an open loop unstable system. The digital controller design is a 2-DOF controller using the transfer function approach for given constraints in terms of peak overshoot and rise time. The objective is to determine a controller which satisfies the specialized constraints. This paper introduces design process for a digital controller using pole placement method for a magnetic suspension system.

Design of Digital Controller using Pole Placement Method

In large power utilities the provision of emergency eserve which is used for restoring the total system following the oss of on-line generation is an important indication of system ecurity. This reserve also has to be produced wholly within the ystem itself. Thus provision of adequate reserve is essential to ystem security but it is costly. This paper deals with the odeling and identification of small isolated power systems as an mergency reserve for the Maharashtra State power system. © 2008 IEEE.

2008 Joint International Conference on Power System Technology POWERCON and IEEE Power India Conference, POWERCON 2008

Design and development of power grid restoration scheme for Maharashtra state with generating plant Islanding

In large power utilities, mal-operation of power system leads to cascade tripping of generating stations. In this situation the concept of intelligent distributed islanding may be one of the solution. Detailed study of power system is necessary to locate generating stations and associated load to successful distributed islanding of power system. © 2008 IEEE.