CHEN Tiantian,LI Yinhong.Two-section Traveling Wave Protection for Flexible DC Grid Based on Positive and Negative Difference of Voltage Refractive Wave Amplitude[J].Automation of Electric Power Systems,2022,46(3):129-136.
CHEN Tiantian,LI Yinhong.Two-section Traveling Wave Protection for Flexible DC Grid Based on Positive and Negative Difference of Voltage Refractive Wave Amplitude[J].Automation of Electric Power Systems,2022,46(3):129-136. DOI: 10.7500/AEPS20210420009.
Two-section Traveling Wave Protection for Flexible DC Grid Based on Positive and Negative Difference of Voltage Refractive Wave Amplitude
Aiming at the problem that the traveling wave protection of the flexible DC grid line can not take into account the operation speed and the ability to withstand the transition resistance under the long-line fault
a two-section traveling wave protection scheme based on the positive and negative difference of voltage refractive wave amplitude is proposed. First
by analyzing the propagation process of the fault traveling wave on the transmission line
the expressions of each refractive wave are derived
and the positive and negative difference characteristics of the refractive wave amplitude of the line port voltage under the condition of internal and external faults are obtained. Then
based on these characteristics
a two-section traveling wave protection scheme is proposed
in which the first section is composed of traditional traveling wave protection criterion
and the second section is based on the port voltage amplitude and recovery time. Finally
based on the PSCAD/EMTDC simulation platform
the effectiveness of the protection scheme is verified.
TANG Guangfu , HE Zhiyuan , PANG Hui . Research, application and development of VSC-HVDC engineering technology [J]. Automation of Electric Power Systems , 2013 , 37 ( 15 ): 3 - 14 .
MA Weimin , WU Fangjie , YANG Yiming , et al . Flexible HVDC transmission technology's today and tomorrow [J]. High Voltage Engineering , 2014 , 40 ( 8 ): 2429 - 2439 .
WANG Yanting , FAN Xinkai , ZHANG Baohui . The analytical analysis and protection setting of traveling wave protection in VSC-HVDC grid [J]. Proceedings of the CSEE , 2019 , 39 ( 11 ): 3201 - 3212 .
YANG Saizhao , XIANG Wang , WEN Jinyu . Review of DC fault protection methods for the MMC based DC grid [J]. Proceedings of the CSEE , 2019 , 39 ( 22 ): 6600 - 6617 .
ZHAO Chengyong , LYU Yu . Location method of pole-to-pole short-circuit fault for flexible DC grid based on simplified model of overhead line [J]. Automation of Electric Power Systems , 2020 , 44 ( 15 ): 112 - 119 .
DONG X Z , LUO S X , SHI S X , et al . Implementation and application of practical traveling-wave-based directional protection in UHV transmission lines [J]. IEEE Transactions on Power Delivery , 2016 , 31 ( 1 ): 294 - 302 .
ZHAO Xibei , XU Jianzhong , LU Tiebing , et al . Overvoltage analysis on overhead line based MMC-HVDC system under single-pole-to-ground [J]. Automation of Electric Power Systems , 2018 , 42 ( 7 ): 44 - 49 .
DONG Xinzhou , TANG Lanxi , SHI Shenxing , et al . Configuration scheme of transmission line protection for flexible HVDC grid [J]. Power System Technology , 2018 , 42 ( 6 ): 1752 - 1759 .
HALEEM N M , RAJAPAKSE A D . Fault-type discrimination in HVDC transmission lines using rate of change of local currents [J]. IEEE Transactions on Power Delivery , 2020 , 35 ( 1 ): 117 - 129 .
ZHOU Guangyang , LI Yan , HE Darui , et al . Protection scheme for VSC-MTDC system with fault current limiter [J]. Transactions of China Electrotechnical Society , 2020 , 35 ( 7 ): 1432 - 1443 .
ZHENG Wei , ZHANG Nan , YANG Guangyuan . Comparative and improvement investigation on the DC transmission line traveling wave protections of Siemens and ABB [J]. Power System Protection and Control , 2015 , 43 ( 24 ): 149 - 154 .
WANG Yanting , ZHANG Baohui , FAN Xinkai . Fast protection scheme for overhead transmission lines of VSC-based HVDC grid [J]. Automation of Electric Power Systems , 2016 , 40 ( 21 ): 13 - 19 .
LETERME W , BEERTEN J , VAN HERTEM D . Nonunit protection of HVDC grids with inductive DC cable termination [J]. IEEE Transactions on Power Delivery , 2016 , 31 ( 2 ): 820 - 828 .
DAI Zhihui , LIU Ziqiang , YANG Mingyu , et al . Pilot protection for flexible DC grids based on amplitude integral of transient wavelet [J]. Proceedings of the CSEE , 2020 , 40 ( 20 ): 6578 - 6593 .
LIN Xiangning , LIU Qi , FAN Lixiang , et al . Blocking pilot protection based on ratio of superimposed energy for VSC-MTDC grid [J]. Electric Power Automation Equipment , 2020 , 40 ( 4 ): 2 - 8 .
DAI Zhihui , LIU Ziqiang , LIU Xueyan , et al . Single-ended protection for flexible DC transmission line based on curvature of initial traveling wave [J]. Transactions of China Electrotechnical Society , 2021 , 36 ( 9 ): 1831 - 1841 .
LAN T K , LI Y H , DUAN X Z . High fault-resistance tolerable traveling wave protection for multi-terminal VSC-HVDC [J]. IEEE Transactions on Power Delivery , 2021 , 36 ( 2 ): 943 - 956 .
ZHOU Jiapei , ZHAO Chengyong , LI Chengyu , et al . Boundary protection scheme for multi-terminal flexible DC grid based on voltage of DC reactor [J]. Automation of Electric Power Systems , 2017 , 41 ( 19 ): 89 - 94 .
DOMMEL H W . Digital computer solution of electromagnetic transients in single- and multiphase networks [J]. IEEE Transactions on Power Apparatus and Systems , 1969 , 88 ( 4 ): 388 - 399 .
QIAO Lihua , TAO Ran , SONG Guobing , et al . A summary of the boundary characteristics used in DC system relay protection [J]. Power System Protection and Control , 2019 , 47 ( 19 ): 179 - 186 .
SHU Bingcheng , LI Haifeng , WU Jiyang , et al . Influence of sampling frequency on traveling wave protection of DC line [J]. Electric Power Automation Equipment , 2016 , 36 ( 5 ): 91 - 95 .