HVDC &FACTS

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					                      HVDC and FACTS(ABSTRACT)
                                                  Pranitha.M, Preethi.S
                                                             Pranitha.M
                                                 pranitha.muthuraj@gmail.com
                                         EEE, 2nd year
                                                       Sri Ramakrishna engineering college
                                          vattamalaipalayam,N.G.G.O.colony,Cbe-22.
                                                              Preethi.S
                                                neethupreethi92@gmail.com
                                          EEE, 2nd year
                                                        Sri Ramakrishna engineering college
                                          vattamalaipalayam,N.G.G.O.colony,Cbe-22.



                                                                    3)SEA CABLE TRANSMISSION
INTRODUCTION
With an increasing demand on energy and the construction of         RECENT INNOVATIONS IN FACTS
large generation units, typically built at remote locations         SVC:
from the load centers, the technology changed from DC to            Static var compensation is used in present which improves
AC. Power to be transmitted, voltage levels and transmission        the system voltage.
distances increased.
DC transmission and FACTS (Flexible AC Transmission                 FIXED SERIES COMPENSATION:
Systems) has developed to a viable technique with high              Fixed series compensation is used in present to increase
power ratings since the 60s                                         stability.

HVDC AND FACTS                                                      RECENT TRENDS IN HVDC
A high-voltage, direct current (HVDC) electric power                The HVDC is moving into new trends by use of components
transmission system uses direct current for the bulk                like IGBT, commutation circuits like CCC and principles like
transmission of electrical power, in contrast with the more         PWM.
common alternating current systems. For long-distance
distribution, HVDC systems are less expensive and suffer            CONCLUSION
lower electrical losses.AC transmission systems                     HVDC became a technically and economically competitive
incorporating the power Electronic-based and other static           technology to the ac transmission.
controllers to enhance Controllability and increase power
transfer capability.

ADVANTAGES OF                    HVDC        OVER         AC
TRANSMISSION
The advantage of HVDC is the ability to transmit large
amounts of power over long distances with lower capital
costs and with lower losses than AC.

APPLICATIONS OF HVDC
1) LONG DISTANCE TRANSMISSION
2) BACK TO BACK SOLUTION
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