JIN Rui,LIN Xiangning,SHI Bonian.Adaptive Setting Method of Grounding Distance Protection Based on Measured Impedance Trajectory[J].Automation of Electric Power Systems,2022,46(14):185-192.
JIN Rui,LIN Xiangning,SHI Bonian.Adaptive Setting Method of Grounding Distance Protection Based on Measured Impedance Trajectory[J].Automation of Electric Power Systems,2022,46(14):185-192. DOI: 10.7500/AEPS20210610003.
Adaptive Setting Method of Grounding Distance Protection Based on Measured Impedance Trajectory
When fault occurs at the outlet of the downstream line
the measured impedance trajectory of the distance protection device on the power supply side may enter the trip area of distance protection zone Ⅰ
causing an overshoot phenomenon. In this regard
the positional relationship of the measured impedance trajectories of the grounding distance element is firstly analyzed and compared under two conditions
i.e.
three-phase fault and single-phase fault grounding through transition resistance outside the protection range. Then
taking the adaptive offset impedance circle characteristic of AREVA P443 line distance protection device as an example
a method is proposed to estimate the measured impedance trajectory based on the measurement quantities before the fault happens and to calculate the trip zone in real time. Finally
PSCAD/EMTDC simulation is used to verify the correctness of the proposed method. Adjusting the offset of the impedance trip zone according to the proposed self-adaptive method can not only ensure that the distance protection zone Ⅰ covers the largest range of the line in real time
but also ensure that the protection will not mistrip with faults at the outlet of the downstream line.
QIN Yu , WEN Minghao , BAI Yu , et al . A novel distance protection scheme for HVDC transmission lines based on criterion extremum online estimation [J]. Proceedings of the CSEE , 2020 , 40 ( 12 ): 3888 - 3897 .
XU Z Y , ZHANG X , HE J , et al . First-zone distance relaying algorithm of parallel transmission lines for single-phase to ground faults [J]. International Journal of Electrical Power & Energy Systems , 2016 , 80 : 374 - 381 .
WANG Hongyu , LI Yongli , ZHANG Yunke , et al . Analysis and improvement of mal-operation in distance protection of multi-stage series transmission line with single power source [J]. Electric Power Automation Equipment , 2021 , 41 ( 2 ): 179 - 185 .
MA Wei , HUANG Xiaobo , WU Minhao , et al . An improved scheme of impedance measurement against transition resistance [J]. Power System Technology , 2020 , 44 ( 3 ): 1134 - 1139 .
QIU Yutao , MA Wei , DING Dong , et al . Overview of research on distance protection against transition resistance [J]. Power System Protection and Control , 2019 , 47 ( 1 ): 166 - 176 .
HUANG Shaofeng , CAO Kai , LUO Lan . A method of impedance measurement to eliminate influence of transition resistance [J]. Automation of Electric Power Systems , 2013 , 37 ( 23 ): 108 - 113 .
XU Z Y , XU G , RAN L , et al . A new fault-impedance algorithm for distance relaying on a transmission line [J]. IEEE Transactions on Power Delivery , 2010 , 25 ( 3 ): 1384 - 1392 .
XU Z Y , JIANG S J , YANG Q X , et al . Ground distance relaying algorithm for high resistance fault [J]. IET Generation , Transmission & Distribution, 2010 , 4 ( 1 ): 27 .
SHEN Bing , HE Benteng . A novel adaptive distance protection based on impedance locus estimation [J]. Proceedings of the CSEE , 2007 , 27 ( 31 ): 71 - 76 .
SHEN Bing , HE Benteng , ZHANG Wujun . New type adaptive distance relay with improved performance [J]. Automation of Electric Power Systems , 2007 , 31 ( 7 ): 39 - 44 .
SUONAN Jiale , ZHONG Ying , WANG Zengchao , et al . Distance protection algorithm based on parameter identification in frequency domain [J]. Automation of Electric Power Systems , 2012 , 36 ( 19 ): 73 - 77 .
HUANG Shaofeng , JIANG Qingkai . Analysis on impact of transition resistance on multi-phase compensation impedance element and its countermeasures [J]. Power System Technology , 2011 , 35 ( 8 ): 202 - 206 .
LI Huixin , XIE Jun , WANG Yulong , et al . Adaptive setting and performance optimization of protection devices on extra-high voltage transmission line [J]. Automation of Electric Power Systems , 2018 , 42 ( 17 ): 148 - 154 .
YANG Zengli , SHI Dongyuan , DUAN Xianzhong . Study on automatic adjustment in relay coordination of transmission line protection [J]. Automation of Electric Power Systems , 2007 , 31 ( 9 ): 51 - 55 .
WANG Yuelin , LI Fengting , LU Liang , et al . Single-phase adaptive grounding distance protection for tie line of PMSG wind farm based on voltage phasors [J]. Power System Technology , 2017 , 41 ( 5 ): 1668 - 1673 .
LIN Fuhong , ZENG Huimin . A single-phase ground distance protection for transmission line with strong ability of enduring fault resistance and load current [J]. Power System Protection and Control , 2013 , 41 ( 23 ): 132 - 138 .
National Development and Reform Commission . Setting guide for 220 kV~750 kV power system protections : DL/T 559—2007 [S]. Beijing : China Electric Power Press , 2008 .
ZHENG Tao , WANG Yunpeng , MA Jiaxuan , et al . Fuzzy logic based novel directional relay using positive-sequence fault component for line equipped with unified power flow controller [J]. Automation of Electric Power Systems , 2020 , 44 ( 17 ): 145 - 152 .
LI Haifeng , ZHU Xinchi , LIANG Yuansheng , et al . Fast differential protection for HVDC transmission line based on current control compensation [J]. Automation of Electric Power Systems , 2021 , 45 ( 11 ): 111 - 119 .
TONG Xiaoyang , ZHANG Shengpeng , ZHANG Guangxiao . Wide-area backup protection algorithm based on regional phasor measurement unit and nodal fault-injection current [J]. Automation of Electric Power Systems , 2021 , 45 ( 15 ): 158 - 165 .