The Study on Single-Phase Adaptive Reclosure of Transmission Lines with Series Capacitance
DOI: 10.23977/poweet.2017.11004 | Downloads: 18 | Views: 6427
Author(s)
Liu Qiao 1, Yao Tian-liang 1, Liang Zhen-feng 2, Yang Xiao-ping 2
Affiliation(s)
1 China Energy Engineering Group Gansu Electric Power Design Institute CO.,LTD,Lan Zhou,China
2 Institute of Resources and hydro-electric Engineering, Xi 'An University of Technology Xi 'An, China
Corresponding Author
Liu QiaoABSTRACT
To solve the problem of single-phase adaptive reclose in line with series compensation, this paper proposes a criterion using the different frequency components belonged to the recovery voltage to defect transient faults and permanent faults. Firstly, this paper analysis the frequency characteristics after fault-phase circuit breaker tripped in single-phase ground fault, establishes the recovery voltage identification model including the DC component and each component. When single-phase-to-ground fault occurs and both sides of the circuit breaker open, the recovery voltage as a known quantity, each frequency component is obtained by least square fitting. The amplitudes of various frequency components are adopted to distinguish the permanent faults from transient faults. Through theoretical analysis and PSCAD simulation show that the criterion is correct and effective and can detect the nature of single-phase fault quickly.
KEYWORDS
Power system, Series compensation, Recovery voltage, Least square fitting, Single-phase adaptive reclosure.CITE THIS PAPER
Qiao, L. , Tian-liang, Y. , Zhen-feng, L. , Xiao-ping, Y. The Study on Single-Phase Adaptive Reclosure of Transmission Lines with Series Capacitance. International Journal of Power Engineering and Engineering Thermophysics (2017) 1: 25-31.
REFERENCES
[1] LIANG Zhen-feng, SUONAN Jia-le, SONG Guo-bing, et al. Research review of adaptive reclosure in transmission lines[J]. Power System Protection and Control, 2013, 41(6):140-167.
[2] LIU Hao-fang, WANG Zeng-ping, XU Yan, et al.Criterion for determining fault nature in adaptive single-phase reclosing for shunt compensated EHV/UHV transmission lines[J]. Power System Technology, 2006,30(9): 29-34.
[3] NIU Xiao-min, WANG Xiao-tong,SHI, Wei, et al. Secondary arc current and recovery voltage of series compensated transmission line[J].Power System Technology, 1998, 22(9): 9-16. SUONAN
[4] Goldsworthy D L. A linearized model for MOV-protected series capacitors[J].IEEE Transactions on Power Systems, 1987, 2(4): 953-958.
[5] YANG Qi-xun, HUANG Shao-feng. Micro computer relay protection foundation [M], Beijing: China power press, 2007.
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