Electrical Engineering (EE): Recent submissions
Now showing items 141-160 of 345
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Behavior of Distance Relay Characteristics on Interconnecting Lines Fed From Wind Farms
(2018-05-14)Distance relays due to their selectivity and operating speed are used in HV/EHV line protection. The dynamic nature of Mho characteristic, which happens to be most primitive technique in line protection implemented with ... -
Efficient Design of Embedded Data Acquisition Systems Based on Smart Sampling
(2018-05-10)Data acquisition from multiple analog channels is an important function in many embedded devices used in avionics, medical electronics, robotics and space applications. It is desirable to engineer these systems to reduce ... -
Lightning Threat to Cables on Tall Towers and the Question of Electrical Isolation
(2018-04-23)Electromagnetic effects of lightning currents during a direct hit to tall communication towers, other instrumented towers and chimneys can be hazardous to associated cables, as well as, electrical and electronics systems. ... -
Operation of Three Phase Four Wire Grid Connected VSI Under Non-Ideal Conditions
(2018-04-12)The necessity to incorporate renewable energy systems into existing electric power grid and need of efficient utilization of electrical energy are growing every day. A shunt connected Voltage Source Inverter(VSI) capable ... -
Reactive Power Co-ordination in Grid Connected Wind Farms for Voltage Stability Enchancement
(2018-04-05)Recent decades have witnessed a significant increment in power contribution from wind generators. This increment in penetration requires power engineers to tackle multi-fold challenges concerning operational and stability ... -
Generalized Analytic Signal Construction and Modulation Analysis
(2018-04-02)This thesis deals with generalizations of the analytic signal (AS) construction proposed by Gabor. Functional extensions of the fractional Hilbert Transform (FrHT) are proposed using which families of analytic signals are ... -
Control, Modulation and Testing of High-Power Pulse Width Modulated Converters
(2018-04-02)Experimental research on high-power converters, particularly in an academic environment, faces severe infrastructural constraints. Usually, power source and loads of required ratings are not available. Further, more ... -
Optimum Savitzky-Golay Filtering for Signal Estimation
(2018-03-21)Motivated by the classic works of Charles M. Stein, we focus on developing risk-estimation frameworks for denoising problems in both one-and two-dimensions. We assume a standard additive noise model, and formulate the ... -
Hall-Effect Current Sensors for Power Electronic Applications : Design and Performance Validation
(2018-03-09)Closed loop Hall-effect current sensors used in power electronic applications require high bandwidth and small transient errors. For this, the behaviour of a closed loop Hall-e ect current sensor is modeled. Analytical ... -
Studies on Electrical Treeing in High Voltage Insulation Filled with Nano-Sized Particles
(2018-03-08)Polymers are widely used as insulating materials in high voltage power apparatus because of their excellent electrical insulating properties and good thermomechanical behavior. However, under high electrical stress, polymeric ... -
Transient Analysis of EHV/UHV Transmission Systems for Improved Protection Schemes
(2018-03-07)Ever increasing demand for electricity, exploitation of large hydro and nuclear power at remote location has led to power evacuation by long EHV/UHV transmission systems. This thesis concentrates on transient analysis of ... -
Supervised Learning of Piecewise Linear Models
(2018-03-07)Supervised learning of piecewise linear models is a well studied problem in machine learning community. The key idea in piecewise linear modeling is to properly partition the input space and learn a linear model for every ... -
A Networked Control Systems Framework for Smart Grids with Integrated Communication
(2018-02-28)Over the last decade, power systems have evolved dramatically around the world, owing to higher demand, stringent requirements on quality and environmental concerns that are becoming increasingly critical. With the ... -
Study on Pulsewidth Modulation Techniques for a Neutral-Point-Clamped Voltage Source Inverter
(2018-02-23)Neutral-point-clamped (NPC) three-level inverter is capable of handling higher dc bus voltage and producing output waveform of better quality than a conventional two-level inverter. The main objective of the present work ... -
PWM Techniques for Split-Phase Induction Motor Drive
(2018-02-18)A split-phase induction motor (SPIM) is obtained by splitting each of the three-phase stator windings of an induction motor into two equal halves. This results in two sets of three-phase windings with a spatial angle ... -
Frequency and Time Domain Response Analysis of Transformer Winding for Indirect Measurement of Series Capacitance and Construction of Ladder Network Models
(2018-02-10)This thesis proposes innovative methods to extract information embedded in the frequency and time domain response of the transformer winding, and utilizes them to suggest solutions to a few tasks that have until now been ... -
Intelligent Techniques for Monitoring of Integrated Power Systems
(2018-02-10)Continued increase in system load leading to a reduction in operating margins, as well as the tendency to move towards a deregulated grid with renewable energy sources has increased the vulnerability of the grid to blackouts. ... -
Stable Galerkin Finite Element Formulation for the Simulation of Electromagnetic Flowmeter
(2018-02-07)Electromagnetic flow meters are simple, rugged, non-invasive flow measuring instruments, which are extensively employed in many applications. In particular, they are ideally suited for the flow rate measurement of liquid ... -
Adaptive Sampling Pattern Design Methods for MR Imaging
(2018-02-07)MRI is a very useful imaging modality in medical imaging for both diagnostic as well as functional studies. It provides excellent soft tissue contrast in several diagnostic studies. It is widely used to study the functional ... -
Voltage Stability Analysis of Unbalanced Power Systems
(2018-02-07)The modern day power system is witnessing a tremendous change. There has been a rapid rise in the distributed generation, along with this the deregulation has resulted in a more complex system. The power demand is on a ...