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Discovering Frequent Episodes With General Partial Orders
(2013-06-04)
Pattern Discovery, a popular paradigm in data mining refers to a class of techniques that try and extract some unknown or interesting patterns from data. The work carried out in this thesis concerns frequent episode mining, ...
Control Of High Power Wound Field Synchronous Motor Drives - Modelling Of Salient Pole Machine, Field Oriented Control Using VSI, LCI And Hybrid LCI/VSI Converters
(2013-05-02)
This thesis proposes control schemes and converter configurations for high power wound field synchronous motor (WFSM) drives. The model for a salient pole WFSM in any general rotating reference frame is developed which can ...
Power System Stabilizing Controllers - Multi-Machine Systems
(2013-05-02)
Electrical Power System is one of the most complex real time operating systems. It is probably one of the best examples of a large interconnected nonlinear system of varying nature. The system needs to be operated and ...
Active Reactive Induction Motor - A New Solution For Load Commutated SCR-CSI Based High Power Drives
(2013-05-28)
This thesis deals with a new solution for medium voltage drives. Load Commutated Inverter (LCI) fed synchronous motor drive is a popular solution for high power drive applications. Though the induction machine is more ...
An Efficient Solution To Generalized Model Of A Transformer Winding And Localization Of Discrete Changes Based On Measurements
(2008-01-31)
High voltage power transformers are designed to withstand a variety of overvoltages and short circuit forces. Occurrence of these events in a power system is natural, inevitable, and one of the main causes of transformer ...
Construction Of Equivalent Circuit Of A Single Isolated Transformer Winding From Frequency Response
(2013-06-14)
Frequency response analysis (FRA) of transformers is universally accepted as a highly sensitive tool to detect deformations in its windings. This is evident from the fact that customized commercial equipment (popularly ...
Hierarchical Logcut : A Fast And Efficient Way Of Energy Minimization Via Graph Cuts
(2013-06-10)
Graph cuts have emerged as an important combinatorial optimization tool for many problems in vision. Most of the computer vision problems are discrete labeling problems. For example, in stereopsis, labels represent disparity ...
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 ...