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Facts & Hvdc

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Facts & Hvdc
A Paper presented on
“FACTS & HVDC TRNAMISSION SYSTEMS”

PRESENTED BY
NITIN K. MOHURLE
(T.E.ELECTRICAL)
SHRAM SADHANA TRUST’S
COLLEGE OF ENGINEERING & TECHNOLOGY
BAMBHORI, JALGAON
E-mail:- nitin.mohurle2000@gmail.com
FACTS AND HVDC TRNSMISSION SYSTEMS Nitin Mohurle
Shram Sadhana Trust’s College of Engineering And Technology,
Jalgaon
nitin.mohurle2000@gmail.com

Abstract — Development of electrical power supplies began more than one hundred years ago. At the beginning, there were only small DC networks within narrow local boundaries, which were able to cover the direct needs of industrial plants by means of hydro energy. With an increasing demand on energy and the construction of large generation units, typically built at remote locations from the load centres, the technology changed from DC to AC. Power to be transmitted, voltage levels and transmission distances increased. FACTS (Flexible AC Transmission System) and HVDC (High Voltage Direct Current) are controllable devices whose functions are to enhance the security, capacity and flexibility of power transmission systems. Application of these components in power systems implies an improvement of transient and voltage stability, power oscillation damping and optimal power flow. DC transmission and FACTS (Flexible AC Transmission Systems) has developed to a viable technique with high power ratings since the 60s. From the first small DC and AC "mini networks", there are now systems transmitting 3 - 4 GW over large distances with only one bipolar DC transmission: 1.000 - 2.000 km or more are feasible with overhead lines. With submarine cables, transmission levels of up to 600 – 800 MW over distances of nearly 300 km have already been attained, and cable transmission lengths of up to 1.300 km are in the planning stage. As a multiterminal system, HVDC

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