Pilot Protection Based on Spearman Rank Correlation Coefficient for Transmission Line Connected to Renewable Energy Source

Ke JIA; Zhe YANG; Chao WEI; Liming ZHENG; Yanbin LI; Tianshu BI

doi:10.7500/AEPS20190630001

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Pilot Protection Based on Spearman Rank Correlation Coefficient for Transmission Line Connected to Renewable Energy Source

Application Research | 更新时间：2025-06-16

- Pilot Protection Based on Spearman Rank Correlation Coefficient for Transmission Line Connected to Renewable Energy Source
- Automation of Electric Power Systems Vol. 44, Issue 15, Pages: 103-111(2020)
- 作者机构：
  
  1. 新能源电力系统国家重点实验室（华北电力大学），北京市 102206
  2. 国电东北新能源发展有限公司，辽宁省沈阳市 110000
  3. 国家电网有限公司华北分部，北京市 100053
- 作者简介：
- 基金信息：
  
  Abstract:
  Renewable energy sources are directly or indirectly connected to the grid through power electronic devices. Their fault currents have limited amplitudes, controlled angles, rich harmonics and strong;which are significantly different from that of conventional synchronous generators. The performance of conventional percentage restrained differential protection is facing challenges. In order to solve this problem, this paper proposes a pilot protection method based on Spearman rank correlation coefficient for transmission lines. When the system operates normally or an external fault occurs, a traversing current is flowing through the transmission line, so the current waveforms on both sides are completely opposite. When an internal fault occurs, there are huge differences between the transient current waveforms on both ends. Therefore, the Spearman rank correlation coefficient can be used to measure the correlation degree between the current waveforms on two ends, to distinguish the faults inside and outside the zone. The method is suitable for all kinds of renewable energy power plants, and has good performance on tolerating transition resistance and noise. Compared with the existing protection based on fault characteristics of renewable energy sources, the proposed method also shows good operation performance when the output power of renewable energy sources is weak and the breaker recloses into a permanent fault. Both simulation results and field recording data verify the effectiveness of the proposed method.
  Foundation:This work is supported by National Key R&D Program of China;National Natural Science Foundation of China
- DOI：10.7500/AEPS20190630001
  CLC：
- Received：30 June 2019，
  
  Revised：2020-04-08，
  
  Published Online：06 June 2020，
  
  Published：10 August 2020
- 稿件说明：
移动端阅览
贾科,杨哲,魏超等.基于斯皮尔曼等级相关系数的新能源送出线路纵联保护[J].电力系统自动化,2020,44(15):103-111.

JIA Ke,YANG Zhe,WEI Chao,et al.Pilot Protection Based on Spearman Rank Correlation Coefficient for Transmission Line Connected to Renewable Energy Source[J].Automation of Electric Power Systems,2020,44(15):103-111.
贾科,杨哲,魏超等.基于斯皮尔曼等级相关系数的新能源送出线路纵联保护[J].电力系统自动化,2020,44(15):103-111. DOI： 10.7500/AEPS20190630001.

JIA Ke,YANG Zhe,WEI Chao,et al.Pilot Protection Based on Spearman Rank Correlation Coefficient for Transmission Line Connected to Renewable Energy Source[J].Automation of Electric Power Systems,2020,44(15):103-111. DOI： 10.7500/AEPS20190630001.

摘要

新能源电源均直接或间接通过电力电子装置并网，其故障电流幅值受限、相角受控、谐波含量高、波形非线性度强，与传统同步电源有着明显区别。传统比率制动式差动保护的动作性能面临挑战。为解决该问题，文中提出了基于斯皮尔曼等级相关系数的送出线路纵联保护方法。当正常运行或者区外故障时，流过送出线路的是穿越性电流，因此两侧电流波形完全相反。当发生区内故障时，两侧暂态电流波形存在巨大差异，因此可以利用斯皮尔曼等级相关系数量度两侧电流波形的相关程度，从而区分区内、区外故障。该方法适用于各类新能源场站，且具备较好的抗过渡电阻和抗噪声能力。同时，与现有基于新能源故障特征的保护相比，该方法在新能源弱出力以及重合于永久性故障时也表现出了较好的动作性能。仿真结果和现场录波数据均证实了该方法的有效性。

Abstract

Renewable energy sources are directly or indirectly connected to the grid through power electronic devices. Their fault currents have limited amplitudes

controlled angles

rich harmonics and strong nonlinearity

which are significantly different from that of conventional synchronous generators. The performance of conventional percentage restrained differential protection is facing challenges. In order to solve this problem

this paper proposes a pilot protection method based on Spearman rank correlation coefficient for transmission lines. When the system operates normally or an external fault occurs

a traversing current is flowing through the transmission line

so the current waveforms on both sides are completely opposite. When an internal fault occurs

there are huge differences between the transient current waveforms on both ends. Therefore

the Spearman rank correlation coefficient can be used to measure the correlation degree between the current waveforms on two ends

to distinguish the faults inside and outside the zone. The method is suitable for all kinds of renewable energy power plants

and has good performance on tolerating transition resistance and noise. Compared with the existing protection based on fault characteristics of renewable energy sources

the proposed method also shows good operation performance when the output power of renewable energy sources is weak and the breaker recloses into a permanent fault. Both simulation results and field recording data verify the effectiveness of the proposed method.

关键词

Keywords

references

国家能源局 . 国家能源局新闻发布会介绍2017年度相关能源情况等 [EB/OL].( 2018-01-24 )[ 2019-04-18 ]. http://www.nea.gov.cn/2018-01/24/c_136921015.htm http://www.nea.gov.cn/2018-01/24/c_136921015.htm .

National Energy Administration . Energy situations in 2017 introduced on the press conference of National Energy Administration [EB/OL]. ( 2018-01-24 )[ 2019-04-18 ]. http://www.nea.gov.cn/2018-01/24/c_136921015.htm http://www.nea.gov.cn/2018-01/24/c_136921015.htm .

郑黎明 , 贾科 , 毕天姝 , 等 . 基于余弦相似度的新能源场站T接型送出线路纵联保护 [J]. 电力系统自动化 , 2019 , 43 ( 18 ): 111 - 124 .

ZHENG Liming , JIA Ke , BI Tianshu , et al . Cosine similarity based pilot protection of teed transmission line connected to renewable energy power plants [J]. Automation of Electric Power Systems , 2019 , 43 ( 18 ): 111 - 124 .

于淼 , 汤亚芳 , 黄亦欣 , 等 . 双馈风机控制方式对继电保护影响的研究 [J]. 电力系统保护与控制 , 2020 , 48 ( 2 ): 180 - 187 .

YU Miao , TANG Yafang , HUANG Yixin , et al . Research on the influence of control mode of DFIG on relay protection [J]. Power System Protection and Control , 2020 , 48 ( 2 ): 180 - 187 .

黄涛 , 陆于平 , 蔡超 . DFIG等效序突变量阻抗相角特征对故障分量方向元件的影响分析 [J]. 中国电机工程学报 , 2016 , 36 ( 14 ): 3929 - 3940 .

HUANG Tao , LU Yuping , CAI Chao . Analysis of phase angle characteristics of DFIG equivalent sequence superimposed impedances and its impact on fault components based direction relay [J]. Proceedings of the CSEE , 2016 , 36 ( 14 ): 3929 - 3940 .

JIA K , GU C , XUAN Z , et al . Fault characteristics analysis and line protection design within a large-scale photovoltaic power plant [J]. IEEE Transactions on Smart Grid , 2018 , 9 ( 5 ): 4099 - 4108 .

宋杰辉 , 杨炳元 , 吴俊杰 . 双馈风场进线对220 kV母线采样值差动保护的影响 [J]. 电力系统保护与控制 , 2019 , 47 ( 13 ): 100 - 106 .

SONG Jiehui , YANG Bingyuan , WU Junjie . Influence of double fed wind field incoming line on sampled value differential protection of 220 kV bus [J]. Power System Protection and Control , 2019 , 47 ( 13 ): 100 - 106 .

陈实 , 邰能灵 , 范春菊 , 等 . 逆变型电源接入对选相元件的影响分析 [J]. 电力系统自动化 , 2017 , 41 ( 12 ): 106 - 112 .

CHEN Shi , TAI Nengling , FAN Chunju , et al . Influence of inverter-interfaced generator on element of phase selectors [J]. Automation of Electric Power Systems , 2017 , 41 ( 12 ): 106 - 112 .

李彦宾 , 贾科 , 毕天姝 , 等 . 电流差动保护在逆变型新能源场站送出线路中的适应性分析 [J]. 电力系统自动化 , 2017 , 41 ( 12 ): 100 - 105 .

LI Yanbin , JIA Ke , BI Tianshu , et al . Adaptability analysis of current differential protection of outgoing transmission line emanating from inverter-interfaced renewable energy power plants [J]. Automation of Electric Power Systems , 2017 , 41 ( 12 ): 100 - 105 .

瞿继平 , 吴兴全 , 闫凯 , 等 . 光伏电站弱电源特性对送出线路继电保护的影响 [J]. 电力自动化设备 , 2015 , 35 ( 5 ): 146 - 151 .

QU Jiping , WU Xingquan , YAN Kai , et al . Influence of PV station weak power feature on relay protection of outgoing transmission line [J]. Electric Power Automation Equipment , 2015 , 35 ( 5 ): 146 - 151 .

宋国兵 , 陶然 , 李斌 , 等 . 含大规模电力电子装备的电力系统故障分析与保护综述 [J]. 电力系统自动化 , 2017 , 41 ( 12 ): 2 - 12 .

SONG Guobing , TAO Ran , LI Bin , et al . Survey of fault analysis and protection for power system with large scale power electronic equipment [J]. Automation of Electric Power Systems , 2017 , 41 ( 12 ): 2 - 12 .

欧阳金鑫 , 唐挺 , 郑迪 , 等 . 低电压穿越控制下双馈风电机组短路电流特性与计算方法 [J]. 电工技术学报 , 2017 , 32 ( 22 ): 216 - 224 .

OUYANG Jinxin , TANG Ting , ZHENG Di , et al . Characteristics and calculation method of short-circuit current of doubly fed wind generator under lower voltage ride through [J]. Transactions of China Electrotechnical Society , 2017 , 32 ( 22 ): 216 - 224 .

何世恩 , 索南加乐 , 杨铖 , 等 . 适应于酒泉风电送出的750 kV线路纵联保护原理研究 [J]. 电力系统保护与控制 , 2010 , 38 ( 16 ): 87 - 91 .

HE Shien , SUONAN Jiale , YANG Cheng , et al . A 750 kV transmission line pilot protection suitable to Jiuquan wind power base delivery [J]. Power System Protection and Control , 2010 , 38 ( 16 ): 87 - 91 .

宋国兵 , 王晨清 , 唐吉斯 , 等 . 适用于风电接入系统的时域模型识别纵联保护新原理 [J]. 电网技术 , 2016 , 40 ( 11 ): 3580 - 3585 .

SONG Guobing , WANG Chenqing , TANG Jisi , et al . Novel pilot protection based on time-domain model identification for wind power integration [J]. Power System Technology , 2016 , 40 ( 11 ): 3580 - 3585 .

段建东 , 崔帅帅 , 刘吴骥 , 等 . 基于电流频率差的有源配电网线路保护 [J]. 中国电机工程学报 , 2016 , 36 ( 11 ): 2927 - 2934 .

DUAN Jiandong , CUI Shuaishuai , LIU Wuji , et al . Line protection based on current frequency difference for active distribution network [J]. Proceedings of the CSEE , 2016 , 36 ( 11 ): 2927 - 2934 .

毕天姝 , 李彦宾 , 贾科 , 等 . 基于暂态电流波形相关性的新能源场站送出线路纵联保护 [J]. 中国电机工程学报 , 2018 , 38 ( 7 ): 2012 - 2019 .

BI Tianshu , LI Yanbin , JIA Ke , et al . Transient current waveform similarity based pilot protection for transmission lines connected to renewable energy power plants [J]. Proceedings of the CSEE , 2018 , 38 ( 7 ): 2012 - 2019 .

周家培 , 赵成勇 , 李承昱 , 等 . 采用电流突变量夹角余弦的直流电网线路纵联保护方法 [J]. 电力系统自动化 , 2018 , 42 ( 14 ): 165 - 171 .

ZHOU Jiapei , ZHAO Chengyong , LI Chengyu , et al . Pilot protection method for DC lines based on included angle cosine of fault current component [J]. Automation of Electric Power Systems , 2018 , 42 ( 14 ): 165 - 171 .

曹雅榕 . 永磁直驱风电机组暂态特性及对配网保护的影响研究 [D]. 北京 : 华北电力大学 , 2016 : 22 - 24 .

CAO Yarong . Research on transient characteristics of directly-driven wind turbine with permanent magnet synchronous generator and impact on distribution protection [D]. Beijing : North China Electric Power University , 2016 : 22 - 24 .

SULLA F , SVENSSON J , SAMUELSSON O . Symmetrical and unsymmetrical short-circuit current of squirrel-cage and doubly-fed induction generators [J]. Electric Power Systems Research , 2011 , 81 ( 7 ): 1610 - 1618 .

欧阳金鑫 , 熊小伏 , 张涵轶 . 电网短路时并网双馈风电机组的特性研究 [J]. 中国电机工程学报 , 2011 , 31 ( 22 ): 17 - 25 .

OUYANG Jinxin , XIONG Xiaofu , ZHANG Hanyi . Characteristics of DFIG-based wind generation under grid short circuit [J]. Proceedings of the CSEE , 2011 , 31 ( 22 ): 17 - 25 .

李光琦 . 电力系统暂态分析 [M]. 3版 . 北京 : 中国电力出版社 , 2007 : 49 - 50 .

LI Guangqi . Transient analysis of power system [M]. 3rd ed . Beijing : China Electric Power Press , 2007 : 49 - 50 .

彭和平 , 孙奇明 , 严明皓 . 适用于光纤自愈环网的线路差动保护综合同步方法 [J]. 电力系统自动化 , 2011 , 35 ( 11 ): 77 - 81 .

PENG Heping , SUN Qiming , YAN Minghao . Synthesis method of data synchronization for line differential protections using optical fiber self-cure ring networks [J]. Automation of Electric Power Systems , 2011 , 35 ( 11 ): 77 - 81 .

张保会 , 尹项根 . 电力系统继电保护 [M]. 2版 . 北京 : 中国电力出版社 , 2010 : 105 - 106 .

ZHANG Baohui , YIN Xianggen . Power system protection relaying [M]. 2nd ed . Beijing : China Electric Power Press , 2010 : 105 - 106 .

汤效军 . 电力线载波通信技术的发展及特点 [J]. 电力系统通信 , 2003 , 24 ( 1 ): 47 - 51 .

TANG Xiaojun . The development and characteristics of power line carrier techniques [J]. Telecommunications for Electric Power System , 2003 , 24 ( 1 ): 47 - 51 .

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