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Now showing items 11-20 of 164
Diffraction Tomographic Imaging With A Circular Array
(Indian Institute of Science, 2005-06-02)
In the conventional diffraction tomography a linear array is used to receive forward scattered field. Then a standard algorithm like back propagation or Fourier domain interpolation is used for reconstruction of the object. ...
Development Of Algorithms For Power System State Estimation Incorporating Synchronized Phasor Measurements
(2013-07-16)
The ability to implement Wide Area Monitoring and Control in power systems is developing into a need in order to prevent wide scale cascading outages. Monitoring of events in the power system provides a great deal of insight ...
High Frequency Link Inverters And Multiresonant Controllers
(2013-10-08)
High frequency link power converters for DC – 3Φ AC applications are investigated. Low cost, reduced size, galvanic isolation and efficient large boosting of voltage level are the key motivations behind the selection of ...
A Novel Technique For Enhancing The Pollution Flashover Strength Of Ceramic Disc Insulators
(2013-07-16)
Pollution is the single largest cause of transmission/distribution line outages, next
to lightning, which result in expensive power outages. A major significance of the
problem is that it can repeatedly occur even at ...
Studies On Silicone Rubber Nanocomposites As Weathershed Material For HVDC Transmission Line Insulators
(2013-06-17)
Outdoor insulators are one of the most important parts of a power system. The reliability of a power system depends also on the reliability of the insulators. The main functions of an insulator used for outdoor applications ...
A Study On High Voltage AC Power Transmission Line Electric And Magnetic Field Coupling With Nearby Metallic Pipelines
(2008-10-03)
In the recent years, there has been a trend to run metallic pipelines carrying petroleum products and high voltage AC power lines parallel to each other in a relatively narrow strip of land. The case of electromagnetic ...
Space-Vector-Based Pulse Width Modulation Strategies To Reduce Pulsating Torque In Induction Motor Drives
(2015-05-27)
Voltage source inverter (VSI) is used to control the speed of an induction motor by applying AC voltage of variable amplitude and frequency. The semiconductor switches in
a VSI are turned on and off in an appropriate ...
A Macroscopic Physical Model For Lightning Return Stroke
(2014-10-15)
In the design of most of the modern systems, lightning threat needs to be considered at the design phase itself. This demands a suitable model and owing to associated complexity, only simplified modeling have been attempted. ...
Reactive Power Planning And Operation of Power Systems with Wind Farms for Voltage Stability Improvement
(2017-09-23)
In recent years, the electric power industry around the world is changing continuously due to transformation from regulated market structure to deregulated market structure. The main aim of the transformation of electric ...