TY - GEN
T1 - Research on non-fault-phase current characteristics in grounding fault in power transmission grid
AU - Song, Shuang
AU - Yang, Yifei
AU - Yuan, Yubo
AU - Liu, Yu
AU - Li, Peng
AU - Wang, Ye
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/12/18
Y1 - 2014/12/18
N2 - When grounding fault occurs in power transmission line in neutral-point grounded system, fault current of the fault phase tends to increase dramatically. In the meantime, the amplitude and phase of the current of non-fault phase also changes abruptly in some degree due to mutual inductance between phases. Firstly, by building model with complete electrical parameters based on induction between phases, this paper illustrates current characteristics of non-fault phase when single-phase grounding occurs in system with neutral-point solid grounding using physical conception. Then, RTDS model is built incorporating parameters of actual system to verify the accuracy and validity of the analysis model with complete electrical parameters using real-time simulation. In conclusion, amplitude and phase of non-fault phase is influenced by load condition, position of fault, system impedance, line impedance, etc., which offer favorable references for judging grid fault characteristics and positioning of fault in a fast and effective way.
AB - When grounding fault occurs in power transmission line in neutral-point grounded system, fault current of the fault phase tends to increase dramatically. In the meantime, the amplitude and phase of the current of non-fault phase also changes abruptly in some degree due to mutual inductance between phases. Firstly, by building model with complete electrical parameters based on induction between phases, this paper illustrates current characteristics of non-fault phase when single-phase grounding occurs in system with neutral-point solid grounding using physical conception. Then, RTDS model is built incorporating parameters of actual system to verify the accuracy and validity of the analysis model with complete electrical parameters using real-time simulation. In conclusion, amplitude and phase of non-fault phase is influenced by load condition, position of fault, system impedance, line impedance, etc., which offer favorable references for judging grid fault characteristics and positioning of fault in a fast and effective way.
KW - Complete Electrical Parameters Model
KW - Grounding Fault
KW - Neutral-Point Grounded System
KW - Non-Fault-Phase Current
KW - RTDS
UR - https://www.scopus.com/pages/publications/84942312679
U2 - 10.1109/CICED.2014.6991816
DO - 10.1109/CICED.2014.6991816
M3 - 会议稿件
AN - SCOPUS:84942312679
T3 - China International Conference on Electricity Distribution, CICED
SP - 774
EP - 779
BT - CICED 2014 - 2014 China International Conference on Electricity Distribution, Proceedings
PB - IEEE Computer Society
T2 - 2014 6th China International Conference on Electricity Distribution, CICED 2014
Y2 - 23 September 2014 through 26 September 2014
ER -