TRANSMISSION OF DATA OVER ELECTRIC POWER LINES



INTRODUCTION

aims at the utilization of the electricity power lines for the transmission of data
gains importance that every building is connected to the power grid that cannot be matched by either the telecommunications or cable TV wiring
provides new services to the users, which are difficult to implement by other technologies, e.g., remote electricity meter reading, broadband over internet and many

RELEVANCE OF PLT[/ ....etc

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ICING OF POWER TRANSMISSION lines during winter storms are a persistent problem that causes outages and costs millions of dollars in repair expenses. High-frequency excitation at approximately 8-200 kHz has been proposed as a method to melt ice. The method works by a combination of two mechanisms. At these frequencies, ice is a lossy dielectric, causing heating directly in the ice. In addition skin effect causes current to flow only in a thin layer on the surface of the line, causing resistive losses and consequent heating.In this article, w ....etc

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Abstract:
We developed an electrostatic micro power generator for low frequency energy harvesting applications. This micro power generator consists of a new vibration structure and new electret electrode. The advantage of this micro power generator is the high power generation structure of both the controlled gap
between electrodes and long-range moving at low frequency. This generator shows 40+W of power output at very low frequency vibration (2Hz, 0.4G).

INTRODUCTION:

Nowadays, micro powe ....etc

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pOWER TRANSMISSION THROUGH FRACTIONAL
FREQUENCY SYSTEM


ABSTRACT

The fractional frequency transmission system FFTS is a very promising long -distance transmission approach, which uses lower frequency (50/3) to reduce the electrical length of the AC power line, and thus its transmission capacity can be increased several fold . This paper introduces the primary experiments results of FFTS.

The experiment uses the phase-controlled cycloconverter as the frequency changer, stepping up 50/3Hz electricity to 50Hz electricity and ....etc

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A Technique for Orthogonal Frequency Division Multiplexing
Frequency Offset Correction

Abstract:
The Orthogonal Frequency Division Multiplexing (OFDM) is a Multi Carrier Modulation technique employing Frequency Division Multiplexing of orthogonal subcarriers. It is also sometimes called as discrete multitone modulation (DMT). It is better than CDMA in high bit rate and Broadband Communications .It is a multi carrier technique, which is very sensitive to Frequency Offset between transmitter and receiver. Th ....etc

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i am a 2nd yr electrical engg student..i am interested in wireless power transmission..want to work on it as a long term project..but i've very little notes about it..so i would like you to send me any project or seminar paper work already presented in this topic..thank you ....etc

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To get full information or details of wireless power transmission please have a look on the pages

http://seminarsprojects.net/Thread-wireless-power-transmission-full-report?pid=38275&mode=threaded

http://seminarsprojects.net/Thread-wireless-power-transmission-full-report?pid=52944&mode=threaded

http://seminarsprojects.net/Thread-wireless-power-transmission-full-report?pid=47235&mode=threaded

http://seminarsprojects.net/Thread-wireless-power-transmission--34300

http://seminarsprojects.net/Thread-wireless-power-transmission-full-report?pid=4 ....etc

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A Low-Voltage Low-Power Comparator With
Current-Controlled Dynamically-Biased
Preamplifiers For DCM Buck Regulators

Hoi Lee
Department of Electrical Engineering,
The University of Texas at Dallas,
Richardson, TX 75080-3021, USA.



Abstract-

Comparator-controlled power switch has been widely used to improve power efficiencies of discontinuous-conductionmode (DCM) buck regulators. Some major design challenges are capabilities of the comparator to operate at low voltage and dissipate low power for low-voltage DCM ....etc

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To get full information or details of ppt of wireless power transmission a next generation power transmission system please have a look on the pages

http://seminarsprojects.net/Thread-wireless-power-transmission-via-laser-ppt

http://seminarsprojects.net/Thread-wireless-power-transmission-full-report?pid=9752&mode=threaded

http://seminarsprojects.net/Thread-wireless-power-transmission--34300

http://seminarsprojects.net/Thread-wireless-power-transmission-advantages-disadvantages

if you again feel trouble on ppt of wireless power transmission ....etc

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Abstract

This paper is focused on the development of the new principles and operational algorithms of the transmission lines distance protection. The proposed distance protection algorithms utilize statistical information about the undefined and random parameters and quantities such as equivalent impedances of the systems at the unmonitored end of the power transmission line and current and voltage phasor measurements errors. Knowledge about the distribution of these parameters and values results in more secure and dependable procedur ....etc

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