Title :
Fault Analysis and Traveling-Wave Protection Scheme for Bipolar HVDC Lines
Author :
Zhang, Ying ; Tai, Nengling ; Xu, Bin
Author_Institution :
Dept. of Electr. Eng., Shanghai Jiao Tong Univ., Shanghai, China
fDate :
7/1/2012 12:00:00 AM
Abstract :
Explicit fault analysis is the basis of protection for the bipolar HVDC Line. The characteristics of the initial values of traveling waves under various internal fault conditions are investigated on the basis of the symmetrical component analysis. The criteria of fault classification and faulty-pole selection are put forward based on the zero- and positive-sequence backward traveling waves, and an integrated traveling wave-based protection scheme is proposed. The simulations based on real-time digital simulation show that the proposed scheme can detect faults rapidly, determine the fault type effectively, and select the faulty pole correctly.
Keywords :
HVDC power transmission; digital simulation; fault diagnosis; poles and towers; power transmission faults; power transmission lines; power transmission protection; bipolar HVDC line; fault analysis; fault classification; fault detection scheme; faulty-pole selection; integrated traveling wave-based protection scheme; internal fault condition; positive-sequence backward traveling wave; real-time digital simulation; symmetrical component analysis; zero-sequence backward traveling wave; Equations; Grounding; HVDC transmission; Inductors; Mathematical model; Resistance; Surges; Fault analysis; HVDC line protection; fault classification; symmetrical component; traveling wave;
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2012.2190528