Puttaswamy P S

GSSS Institute of Engineering and Technology for Women | GSSSIETW · Department of Electrical and Electronics Engineering

Electric arc furnace (EAF) serves as a major contributor for the global industrialization due to its wide versed application for manufacturing of high-grade steel. The dynamic operation of EAF is considered to be highly nonlinear and chaotic. Hence, to examine their operations and effects on the electrical network, it is necessary to create an accu...

The technological requirements in the industrial and domestic sectors greatly depend on the sensitive and controllable electrical and electronic equipment to meet the application-specific demands, the usage of these nonlinear devices inherently contribute to the degradation of electric power quality, among the various power quality disturbances, Ha...

The control methods of Shunt active power filter for current harmonics compensation have been evolving ever since. Some of the popular ones being, Instantaneous Reactive Power Theory (IRPT or PQ Theory), Synchronous Reference Frame Theory (SRFT or DQ Theory), Adaptive detection algorithm (ADA), Power Balance theory, PLL algorithm etc. The paper foc...

The Production of the quality steel is achieved by melting iron and steel scraps by utilizing electric power in an electric arc furnace, it acts as one of the major troublesome load in the electric power system due to high nonlinear and chaotic nature, thereby creating severe power quality disturbances to the interconnected network, therefor the ne...

limited by scaling challenges of CMOS devices, the option to improve device performance is to look for novel materials and devices. Carbon, Carbon nanotubes (CNT) and graphene are prominent contenders for substituting silicon in near future. Graphene nanoribbon (GNR) which share many of the fascinating electrical and mechanical properties of CNT ar...

p> Graphene based top-gated Field effect transistor (GFET) is designed and simulated using the device simulator packages. The paper describes fabrication process and the device simulation aspects of the GFET device. Two devices with different gate lengths of 200nm and 350nm are simulated. Device simulations are carried out in open source TCAD softw...

Multilevel inverters (MLI) are suitable for high power and medium voltage applications. Number of topologies has been introduced among which the cascaded H-bridge (CHB) inverter is widely used because of its simplicity. It consists of number of power semiconductor switches and DC voltage sources to generate step voltage waveform. The use of separat...

The lungs reflect the health condition of a person, and hence it has been imaged and analysed by diagnosticians for over a century, and it requires knowledge and experience. The human observer’s time and effort could be used productively if the lung image analysis is automated. This is especially true in case of screening of the lung chest x-rays....

Stochastic performance of an electric arc furnace (EAF) has drawn researcher’s attention due to power quality problems introduced by EAF operation. In this paper, Electric arc furnace is modeled to investigate power quality problems. Voltage flicker, harmonics and inter-harmonics are the main power quality disturbances that arise in the electrical...

In industries, it is very much required to maintain speed of DC motor accurately or precisely for some applications like drills, lathes, spinning and weaving, elevators, cranes etc. This is possible only by taking feedback of speed from DC motor and control the speed according to required accuracy. PLC and DC Drive makes major role in maintaining t...

In this paper, we present a case study of understanding and classifying the learning styles of undergraduate engineering students. The distribution in each of the four dimensions of learning styles is determined. Based on the results, the students were informed about their respective learning styles and the ways in which they could improve the perf...

The ephemeral power quality distortions such as voltage swell, harmonics, transients, voltage sag are incrementing every day with the proliferation of number of solid state contrivances. The technical difficulties like mis-operation, heating are upshots of this and hence identification and relegation of the noise become an essential work. The three...

The voltage signal disturbances may lead to the difficulties viz. heating, device aging, etc. Enhancement of the devalued supplied power voltage is a prime task that needs identification and also the classification of the noise. Therefore, for disturbances namely voltage sag, transients, swell and harmonic voltage disparities, identification by Hil...

In this paper we discuss about the implementation of Active Shape Model based contour detection algorithm on the digital x-rays of lungs. The effect of considering the mean values while forming the gray level profiles is shown and a modified method where median values improve the result is also presented.

This paper deals with Bi-modal Image segmentation with active shape model. This method has been applied to varieties of segmentation problems, where considerable information about the shape is available. The discussion about the implementation on a set of both synthetic and natural bimodal images is presented.

A microprocessor based firing scheme for adjustable firing angle of thyristors of line commutated converter is presented. A full range control of the firing angle from zero degree to one hundred eighty degree is achieved through microprocessor software. The scheme uses minimum hardware and is capable of controlling the rectifier, inverter as well a...

This paper proposes novel low-power full-adder cell to be used as Shannon adder in the neural network applications. By using the Shannon's theorem, the gate count is reduced, thereby the total chip area gets minimized. Hence, the power also gets reduced to a considerable amount. The designs are implemented using synthesis tool which results in sign...

Worldwide fast depletion of conventional energy resources necessitates the implementation of renewable energy sources for generation to satisfy the growing demand. Since last decade, technological innovations and a changing economic and regulatory environment have resulted considerable revival of interest in connecting wind generation to the grid....

Proportional-Integral-Derivative (PID) Controllers plays a significant role in many industrial and commercial applications. Designing of PID controller is always a challenging problem especially for high order systems. It is known that PID Controller is employed in every aspect of industrial automation. The PID Controller applications are spanned f...

This paper presents a methodology for selection of location of static VAR compensator based on static voltage stability analysis of a power system. The analysis presented here uses the L-index of load buses. This includes voltage stability information of a normal power flow in the range of 0 to 1(no load to voltage collapse). An approach has been d...

DC motors are important components of most of the process control industries. PID controllers are extensively used in DC motors for speed as well as position control. Tuning of PID controller parameters is an iterative process and needs an optimization to achieve the desired performance. In this paper a modified form of Interactive Evolutionary Com...