As iam from ee stream in btech,I was very much interested in doing the project on
enhancement of voltage quality in isolated power systems,due to which i need some technical support from you in providing the PPTS,PDFS regarding above mentioned topic.
thanks in advance for responding ....etc

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ABSTRACT
INTROUCTION
The aim of the power system has always been to supply electrical energy to customers. Earlier the consumers of electrical energy were mere acceptors. Interruptions and other voltage disturbances were part of the deal. But today electric power is viewed as a product with certain characteristics which can be measured, predicted, guaranteed, improved etc. Moreover it has become an integral part of our life. The term 'power quality' emerged as a result of this new emphasis placed on the customer uti ....etc

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to get information about the topic slides of voltage sag analysis related topic refer the page link bellow

http://seminarsprojects.net/Thread-voltage-sag-analysis?pid=184&mode=threaded ....etc

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Voltage Sag or Voltage Dip (IEC term) is defined by the IEE 1159 as the decrease in the RMS voltage level to 10% - 90% (1% - 90% for EN 50160) of nominal, at the power frequency for durations of cycle to one (1) minute. Also, voltage sag is classified as a short duration voltage variation phenomena, which is one of the general categories of power quality problems.

Voltage sag (dip) durations are subdivided into three categories: instantaneous ( cycle to 30 cycles), momentary (30 cycles to 3 seconds), and temporary (3 seconds to 1 minute). ....etc

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animation of voltage sag

ABSTRACT

The Power Quality term is widely used in recent years in power system field. Voltage sags is one of the
power quality issue, which is also known as dips, are important to industrial reliability. This paper presents a power
world simulation approach to find the voltage sag magnitudes in power system network. In this paper, investigations
have been conducted on a sample distribution system model taking into consideration with the practical operation of a
power system. ....etc

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I AM ANIL KUMAR PURSUING M.TECH, EE, PSCA. THIS TIME I NEED TO DO PROJECT WORK ON UPQC AS SAID ABOVE TOPIC. I NEED HELP FROM UR SIDE FOR COMPLETE THE M.TECH, SO I WANT TO KNOW THE ABOVE TOPIC IN FULL VERSION. PLEASE FORWARD THE ABOVE WORK TO MY MAIL..
[email protected]

thanking you..! ....etc

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requestIn another attempt , the authors propose the application of fuzzy logic (FL) technique within microgrid energy system based on the most modern power conditioning equipment devices such as Unified Power Quality Conditioner (UPQC). Similarly , a linear quadratic regulator (LQR) control technique embedded with the ANN is used to coordinate the operation of the series and shunt VSIs of the UPQC. In another development a control algorithm based on wavelet transform for UPQC to suppress current harmonics and voltage sags is propose ....etc

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to get information about the topic INTER LINE UNIFIED POWER QUALITY CONDITIONER full report,ppt and related topic refer the page link bellow
http://seminarsprojects.net/Thread-control-and-analysis-of-a-unified-power-flow-controller

http://seminarsprojects.net/Thread-power-quality-full-report

http://seminarsprojects.net/Thread-power-quality-full-report?page=2 ....etc

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power quality disturbances,classification,detection,mitigation using wavelet and SVM

please send material/data

[email protected] ....etc

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A voltage sag
abstraction

A voltage sag is a momentary decrease in the rms voltage, usually caused by a fault in the utility transmission line or distribution system within customer facility. It is a temporary voltage drop below 90% of the nominal voltage level. Voltage sags and momentary power interruptions are probably the most important power quality problems affecting industrial and large commercial customers.

A voltage sag is a sudden reduction in the supply voltage magnitude followed by a voltage reco ....etc

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