Title :
The energy based directional protection of transmission lines
Author :
He, Benteng ; Jin, Huafeng ; Li, Ju
Author_Institution :
Dept. of Electr. Eng., Zhejiang Univ., Hangzhou, China
Abstract :
In this paper we present an ultra high speed relay based on the energy function in the fault component. The fault direction can be held for a long time after the fault inception and which will not be influenced by the transient harmonics. To resolve the problems caused by the unbalanced situation in system swing, we propose an adaptive determination of fault direction. As a result, the speed and the security are both improved. Computer simulations with the Electromagnetic Transients Program (EMTP) are also included
Keywords :
EMTP; power system simulation; power transmission faults; power transmission lines; relay protection; EMTP; Electromagnetic Transients Program; energy based directional protection; energy function; fault component; fault direction; fault inception; system swing; transient harmonics; transmission lines; ultra high speed relay; unbalanced situation; EMTP; Energy resolution; Passive networks; Power harmonic filters; Power system transients; Protection; Protective relaying; Relays; Transmission lines; Voltage;
Conference_Titel :
Power System Technology, 1998. Proceedings. POWERCON '98. 1998 International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-4754-4
DOI :
10.1109/ICPST.1998.729268
