Improvement of Rotor Angle Stability and Dynamic Performance of AC/DC Interconnected Transmission System
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2013 by IJETT Journal|
|Year of Publication : 2013|
|Authors : Ramesh Gantha , Rasool Ahemmed|
Ramesh Gantha , Rasool Ahemmed. "Improvement of Rotor Angle Stability and Dynamic Performance of AC/DC Interconnected Transmission System". International Journal of Engineering Trends and Technology (IJETT). V4(5):1471-1476 May 2013. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group.
this paper illustrates a study on improvement of rotor angle and dynamic performance of AC/DC interconnected system. High voltage direct current transmission is an economic way for long distance power delivery and/or interconnection of asynchronous system with different frequencies. With the development of modern power system, HVDC system plays much more important role in power grids due to their huge capacity and capability of long distance transmission. An AC/DC parallel transmission system and a three - in feed HVDC system are modeled using PSCAD /EMTDC. Simulations corresponding to different situations are performed. From thes imulation results , HVDC Light is proven to beable to improve the rotorangle stability and dynamic performance of AC/DC inter connected transmission system, and support the AC voltage during the system fault to enlarge the margin of the voltagest ability which is the basic difference from conventional HVDC. HVDC Light can also prevent commutation failure in multi - in feed HVDC system and help the recovery of HVDC system too.
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HVDC Light ; AC / DC transmission system ; Power stability; commutation failure