TY - GEN
T1 - One quick-action protection scheme for VSC-HVDC transmission lines with considering the frequency-dependent characteristics of cables
AU - Liu, Peiyao
AU - Guobing, Song
AU - Xu, Chu
AU - Ting, Wang
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/12/9
Y1 - 2016/12/9
N2 - The protection strategy for VSC-HVDC transmission has a poor performance in practice, and it is necessary to explore new protection schemes. Most transmission lines of VSC-HVDC use the cables which have obvious frequency-dependent characteristics, and large capacitors are installed at both ends of transmission lines, making it possible to construct the new single-end protections. This paper analyzes the circuits' topology of VSC-HVDC transmission line under internal and external faults, and then defines the transfer impedance of fault component circuits. With considering the frequency-dependent parameters of cables, it is found that the impedance of high frequency under external faults is quite larger than that under internal faults, which means that the high-frequency current can be used to distinguish internal and external faults. The simulation results prove the validity and good performance of the proposed protection scheme.
AB - The protection strategy for VSC-HVDC transmission has a poor performance in practice, and it is necessary to explore new protection schemes. Most transmission lines of VSC-HVDC use the cables which have obvious frequency-dependent characteristics, and large capacitors are installed at both ends of transmission lines, making it possible to construct the new single-end protections. This paper analyzes the circuits' topology of VSC-HVDC transmission line under internal and external faults, and then defines the transfer impedance of fault component circuits. With considering the frequency-dependent parameters of cables, it is found that the impedance of high frequency under external faults is quite larger than that under internal faults, which means that the high-frequency current can be used to distinguish internal and external faults. The simulation results prove the validity and good performance of the proposed protection scheme.
KW - VSC-HVDC transmission system
KW - cable
KW - high-frequency current
KW - single-end protection
KW - transfer impedance
UR - https://www.scopus.com/pages/publications/85009999507
U2 - 10.1109/APPEEC.2016.7779933
DO - 10.1109/APPEEC.2016.7779933
M3 - 会议稿件
AN - SCOPUS:85009999507
T3 - Asia-Pacific Power and Energy Engineering Conference, APPEEC
SP - 2480
EP - 2484
BT - IEEE PES APPEEC 2016 - 2016 IEEE PES Asia Pacific Power and Energy Engineering Conference
PB - IEEE Computer Society
T2 - 2016 IEEE PES Asia Pacific Power and Energy Engineering Conference, APPEEC 2016
Y2 - 25 October 2016 through 28 October 2016
ER -