Need powerpoint presentation on hvdc light city infeed with hvdc light and extruded cables ....etc

[:=Read Full Message Here=:]

i want ppt on hvdc and fact before today 10.00am
plz make it soon because its for our urgent purpose ....etc

[:=Read Full Message Here=:]

Voltage Source Converter (VSC) based HVDC transmission systems are available in market for power rated between a few MVA to a few hundreds of MVA. The new system results in many application opportunities and new applications in turn bring up new issues of concern. This paper aims at exploring the HVDC transmission systems and also presents a comprehensive investigation on one of the concerned issues, which is the contribution of HVDC Light? to short circuit currents. Different AC network conditions, load conditions and fault types are considere ....etc

[:=Read Full Message Here=:]

BASIC HVDC AND CONVERTER OPERATION



Why HVDC rather than HVAC?
Long distances make HVDC cheaper
Improved page link stability
Fault isolation
Asynchronous link

Inverter operation ( = 140 )
Firing is delayed so much that the entire area enclosed between the voltage waveform and the zero line is of opposite polarity.

The equation written in terms of is still correct:

Vd=Vdio -0.766-Id. Xc+Er
2
Vd=-Vdio x 0.8609
However this is usually written in t ....etc

[:=Read Full Message Here=:]

VSC-HVDC Control and Application in Meshed
AC Networks


Abstract

VSC-HVDC is a fully controllable transmission
device, allowing rapid and independent control of active power
transmitted over the dc page link and reactive power at each end of
the dc link. Embedding VSC-HVDC in meshed ac networks
opens up new possibilities to improve power grid reliability and
efficiency.

INTRODUCTION

SC-HVDC is a transmission technology based on voltage
source converters (VSC) and insulated gate bipolar
....etc

[:=Read Full Message Here=:]

to get information about the topic advance technology full report ,ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-advanced-technology-in-sata-pata

http://seminarsprojects.net/Thread-advanced-mobile-presence-technology

http://seminarsprojects.net/Thread-advanced-hvdc-technologies

http://seminarsprojects.net/Thread-facts-group-of-advanced-transmission-technologies ....etc

[:=Read Full Message Here=:]

ABSTRACT
Urban electrical power systems with steep demand increase need easily located solutions with short lead time from decision to transmission. While AC cable solutions can offer sufficient power ratings, the problems of load controllability and short circuit power increase with every added circuit. These problems may be countered with Voltage Source Converter (VSC) based technology using Cables for transmission, such as HVDC Light. This technology offers up to 500 MW per station with small footprint, ideal for in feed to city centers. ....etc

[:=Read Full Message Here=:]

H-BRIDGE VSC WITH A T-CONNECTED TRANSFORMER BASED
THREE-PHASE FOUR-WIRE DSTATCOM FOR POWER QUALITY
IMPROVEMENT


I. INTRODUCTION


THE present day ac power distribution systems is
suffering from severe power quality problems. These
power quality problems include high reactive power
burden, harmonics currents, load unbalance, excessive
neutral current etc. . The power quality at the point
of common coupling (PCC) with the utility grid is
governed by the various stand ....etc

[:=Read Full Message Here=:]

MODELING AND APPLICATION OF VSC-HVDC IN THE
EUROPEAN TRANSMISSION SYSTEM

Abstract

The present paper focuses on the technical,
environmental, and economic features of VSC-based
HVDC technologies. The aim is to investigate the impact of
VSC-HVDC on the European power system: specific attention
is paid to the transmission capacity enhancement
attainable in targeted applications. Towards this purpose,
an original steady state model of the VSC-HVDC is presented
and tested. Then, a techno-economic analysis of the
impact of VSC ....etc

[:=Read Full Message Here=:]

To get full information or details of hvdc and facts please have a look on the pages

http://seminarsprojects.net/Thread-facts-hvdc-controller

http://seminarsprojects.net/Thread-hvdc-light-technology?pid=76486#pid76486

http://seminarsprojects.net/Thread-facts-and-hvdc-link-applications-of-vcs

if you again feel trouble on hvdc and facts please reply in that page and ask specific fields in hvdc and facts ....etc

[:=Read Full Message Here=:]