reduction of harmonics using filter ppt

Abstract

This paper shows the method of improving the power quality using shunt active power filter. The proposed topic comprises of PI controller, filter hysteresis current control loop, dc page link capacitor. The switching signal generation for filter is from hysteresis current controller techniques. With the all these element shunt active power filter reduce the total harmonic distortion. This paper represents the simulation and analysis of the using three phase three wire system active filter to co ....etc

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NOVEL ACTIVE POWER FILTERS FOR HARMONICS SUPPRESSION



INTRODUCTION
CONCEPT OF HARMONICS
Harmonics can be defined as entities having a frequency in integral multiples of the fundamental frequency. This means, if we have a fundamental frequency of f Hz, the entities 2f, 3f, 4f, 5f etc. are called as harmonics. During the past decades many power electronic devices such as 6-pulse converters, variable speed motor drives, and other power electronic equipment for energy fl ....etc

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dikha de dikha de dikha de dikha de dikha de dikha de dikha de dikha de dikha de dikha de dikha de dikha dedikha de ....etc

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to get information about the topic mitigation of harmonics using active power filter related topic refer the page link bellow

http://seminarsprojects.net/Thread-harmonics-mitigation-using-active-power-filter-a-technological-review ....etc

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In this paper, the implementation of a shunt active power filter with a small series reactor for a three-phase system is presented. The system consists of multiple non-linear loads, which are a combination of harmonic current sources and harmonic voltage sources, with significant unbalanced components.The filter consists of a three-phase current-controlled voltage source inverter (CC-VSI) with a filter inductance at the ac output and a dc-bus capacitor. The CC-VSI is operated to directly control the ac grid current to be sinuso ....etc

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To get full information or details of active power filter for reactive power compoensation please have a look on the pages

http://seminarsprojects.net/Thread-application-of-shunt-active-power-filter-full-report?pid=38472&mode=threaded

http://seminarsprojects.net/Thread-wideband-harmonic-compensation-with-a-voltage-source-hybrid-active-power-filter

if you again feel trouble on active power filter for reactive power compoensation please reply in that page and ask specific fields ....etc

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to get information about the topic reduction of harmonics using active power filters related topic refer the page link bellow

http://seminarsprojects.net/Thread-an-improved-single-phase-active-power-filter-with-optimum-dc-capacitor ....etc

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transient overvoltages in electrical distribution system and suppression techniques detailed information ....etc

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Harmonics Mitigation Using Active Power Filter:
A Technological Review

Zainal Salam*, Tan Perng Cheng and Awang Jusoh
Department of Energy Conversion, Faculty of Electrical Engineering, Universiti Teknologi Malaysia,
81310 UTM, Skudai, Johor, Malaysia.

abstract
This paper is intended to review the development of active power filter (APF) technologies that are commonly used to mitigate harmonics in utility power lines. This review can also be considered as a tutorial-type paper as it provide ....etc

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A Multi-cell Linear Power Amplifier for Driving Piezoelectric Loads
RAKESH K P
S-7 AEI
Roll No: 48
College Of Engineering , Trivandrum
2007-11 batch


Introduction
Describes about multicell amplifier , developed by connecting floating signal modules in series to drive piezoelectric devices.

PIEZOELECTRIC devices or actuators have been used as positioners or driving motors in many fields such as optics, precision machining, and fluid control, as well as in optical disk drives ....etc

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