Transient Current Based Fault Location Method of Pole-to-pole Short-circuit for Modular Multilevel Converter Low-voltage Direct Current

Xiaoping GAO; Wentao HUANG; Nengling TAI; Zhoujun MA; Yong WANG; Canbing LI

doi:10.7500/AEPS20200106004

您当前的位置：

首页 >

文章列表页 >

Transient Current Based Fault Location Method of Pole-to-pole Short-circuit for Modular Multilevel Converter Low-voltage Direct Current

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

- Transient Current Based Fault Location Method of Pole-to-pole Short-circuit for Modular Multilevel Converter Low-voltage Direct Current
- Automation of Electric Power Systems Vol. 44, Issue 17, Pages: 127-135(2020)
- 作者机构：
  
  1.电力传输与功率变换控制教育部重点实验室(上海交通大学),上海市 200240
  2.河海大学能源与电气学院, 江苏省南京市 210098
  3.国网江苏省电力有限公司南京供电分公司,江苏省南京市 210019
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China;Shanghai Sailing Program;Major Scientific Research and Innovation Projects of Shanghai Education Commission
- DOI：10.7500/AEPS20200106004
  CLC：
- Received：06 January 2020，
  
  Revised：2020-03-31，
  
  Published Online：17 June 2020，
  
  Published：10 September 2020
- 稿件说明：
移动端阅览
高校平,黄文焘,邰能灵等.基于暂态电流的MMC-LVDC双极短路故障定位方法[J].电力系统自动化,2020,44(17):127-135.

GAO Xiaoping,HUANG Wentao,TAI Nengling,et al.Transient Current Based Fault Location Method of Pole-to-pole Short-circuit for Modular Multilevel Converter Low-voltage Direct Current[J].Automation of Electric Power Systems,2020,44(17):127-135.
高校平,黄文焘,邰能灵等.基于暂态电流的MMC-LVDC双极短路故障定位方法[J].电力系统自动化,2020,44(17):127-135. DOI： 10.7500/AEPS20200106004.

GAO Xiaoping,HUANG Wentao,TAI Nengling,et al.Transient Current Based Fault Location Method of Pole-to-pole Short-circuit for Modular Multilevel Converter Low-voltage Direct Current[J].Automation of Electric Power Systems,2020,44(17):127-135. DOI： 10.7500/AEPS20200106004.

摘要

随着分布式电源和直流负荷的大量接入，直流配电系统相较于交流系统更具优势。故障定位是直流配电网可靠、优质供电的关键支撑技术之一。分析了模块化多电平换流器(MMC)型柔性直流配电网双极短路故障暂态特性，提出了一种基于子模块闭锁后初始阶段暂态电流的故障精确定位方法，建立了双端MMC型柔性直流配电网的等效电路，推导了直流电流的时域表达式，构建包含故障距离和过渡电阻2个未知参数的时域方程组，并利用最小二乘法进行求解。该方法适用于不同接地方式。在PSCAD/EMTDC中搭建了双端柔性直流配电网模型。仿真结果验证了该方法的有效性、可靠性与准确性，针对两端换流站参数不对称和过渡电阻时变场景，所提方法也具有很高的定位精度。

Abstract

With the integration of large number of distributed power sources and DC loads

the DC distribution system has more advantages than AC system. Fault location is one of the key supporting technologies for reliable and high-quality power supply of DC distribution network. This paper analyzes the transient characteristics of the pole-to-pole short-circuit fault in the modular multilevel converter (MMC) based flexible DC distribution network and proposes a precise fault location method based on the transient current at the initial stage after the blocking of the sub modules. The equivalent circuit of two-terminal MMC based flexible DC distribution network is established. The time-domain expression of DC current is derived

the time-domain equations including two unknown parameters of fault distance and transition resistance are constructed

and the least square method is used to solve the equations. The method is suitable for different grounding modes. In PSCAD/EMTDC

a two-terminal flexible DC distribution network model is built. The simulation results verify the effectiveness

reliability and accuracy of the method. The proposed method also has high location accuracy for the scene of asymmetric parameters and time-varying transition resistance of converter stations at both terminals.

关键词

Keywords

references

江道灼 , 郑欢 . 直流配电网研究现状与展望 [J]. 电力系统自动化 , 2012 , 36 ( 8 ): 98 - 104 .

JIANG Daozhuo ， ZHENG Huan . Research status and developing prospect of DC distribution network [J]. Automation of Electric Power Systems ， 2012 ， 36 ( 8 )： 98 - 104 .

戴志辉 , 葛红波 , 陈冰研 , 等 . 柔性中压直流配电网线路保护方案 [J]. 电力系统自动化 , 2017 , 41 ( 17 ): 78 - 86 .

DAI Zhihui , GE Hongbo , CHEN Bingyan , et al . Line protection schemes for flexible medium voltage DC distribution networks [J]. Automation of Electric Power Systems , 2017 , 41 ( 17 ): 78 - 86 .

薛士敏 , 陈超超 , 金毅 , 等 . 直流配电系统保护技术研究综述 [J]. 中国电机工程学报 , 2014 , 34 ( 19 ): 3114 - 3122 .

XUE Shimin , CHEN Chaochao , JIN Yi , et al . A research review of protection technology for DC distribution system [J]. Proceedings of the CSEE , 2014 , 34 ( 19 ): 3114 - 3122 .

WANG Puyu , ZHANG Xiaoping , COVENTRY F , et al . Control and protection strategy for MMC MTDC system under converter-side AC fault during converter blocking failure [J]. Journal of Modern Power Systems and Clean Energy , 2014 ， 2 ( 3 ): 272 - 281 .

董旭柱 , 黄邵远 , 陈柔伊 , 等 . 智能配电网自愈控制技术 [J]. 电力系统自动化 , 2012 , 36 ( 18 ): 17 - 21 .

DONG Xuzhu ， HUANG Shaoyuan ， CHEN Rouyi ， et al . Selfhealing control technology for smart distribution system [J]. Automation of Electric Power Systems ， 2012 ， 36 ( 18 )： 17 - 21 .

齐郑，庄舒仪，何锡祺，等 . 基于母线扰动信号的配电网混合线路行波故障测距技术 [J]. 电力系统自动化 , 2019 , 43 ( 13 ): 124 - 130 .

QI Zheng ， ZHUANG Shuyi ， HE Xiqi ， et al . Traveling wave fault location technology for hybrid transmission line based on bus disturbance signal ［J］. Automation of Electric Power Systems ， 2019 ， 43 （ 13 ）： 124 - 130 .

宋国兵 , 李德坤 , 靳东晖，等 . 利用行波电压分布特征的柔性直流输电线路单端故障定位 [J]. 电力系统自动化 , 2013 , 37 ( 15 ): 83 - 88 .

SONG Guobing , LI Dekun , JIN Donghui , et al . One-terminal fault location for HVDC flexible transmission lines based on wave voltage distribution features [J]. Automation of Electric Power Systems , 2013 , 37 ( 15 ): 83 - 88 .

王帅 , 毕天姝 , 贾科 . 基于主动脉冲的MMC-HVDC单极接地故障测距 [J]. 电工技术学报 , 2017 , 32 ( 1 ): 12 - 19 .

WANG Shuai , BI Tianshu , JIA Ke . Single terminal fault location for MMC-HVDC transmission line using active pulse [J]. Transactions of China Electrotechnical Society , 2017 , 32 ( 1 ): 12 - 19 .

许珉，杨艳伟，申克运，等 . 基于小波变换的电缆短距离开路故障测距 [J]. 电力系统保护与控制， 2013 ， 41 ( 4 )： 112 - 116 .

XU Min ， YANG Yanwei ， SHEN Keyun ， et al . Cable short open-circuit fault location based on wavelet transform [J]. Power System Protection and Control ， 2013 ， 41 ( 4 )： 112 - 116 .

PARK J D ， CANDELARIA J ， MA L ， et al . DC ring-bus microgrid fault protection and identification of fault location [J]. IEEE Transactions on Power Delivery ， 2013 ， 28 ( 4 )： 2574 - 2584 .

杨亚超 , 黄纯 , 江亚群 , 等 . MMC-HVDC输电线路双端非同步故障测距方法 [J]. 电力系统自动化 , 2018 , 42 ( 16 ): 148 - 154 .

YANG Yachao ， HUANG Chun ， JIANG Yaqun , et al . Two-terminal asynchronous fault location method for MMC-HVDC transmission line [J]. Automation of Electric Power Systems , 2018 , 42 ( 16 ): 148 - 154 .

林芳雯 , 吴俊勇 , 郝亮亮 . 基于视在伪阻抗辨识的直流配电电缆单端在线故障定位方法 [J]. 电网技术 , 2016 , 40 ( 8 ): 2555 - 2561 .

LIN Fangwen ， WU Junyong ， HAO Liangliang . One-terminal on-line fault location method for DC distribution cable based on apparent seudo-impedance identification [J]. Power System Technology ， 2016 ， 40 ( 8 )： 2555 - 2561 .

杨亚超 , 黄纯 , 汪星耀 , 等 . 一种直流配电网线路故障测距新方法 [J]. 电网技术 , 2019 , 43 ( 5 ): 1787 - 1794 .

YANG Yachao ， HUANG Chun ， WANG Xingyao ， et al . A novel line fault location method for DC distribution network [J]. Power System Technology ， 2019 ， 43 ( 5 )： 1787 - 1794 .

宋国兵，周德生，焦在滨，等 . 一种直流输电线路故障测距新原理 [J]. 电力系统自动化， 2007 , 31 ( 24 )： 57 - 61 .

SONG Guobing ， ZHOU Desheng ， JIAO Zaibin ， et al . A novel fault location principle for HVDC transmission line [J]. Automation of Electric Power Systems ， 2007 ， 31 ( 24 )： 57 - 61 .

高淑萍 , 索南加乐 , 宋国兵 , 等 . 基于分布参数模型的直流输电线路故障测距方法 [J]. 中国电机工程学报 , 2010 , 30 ( 13 ): 75 - 80 .

GAO Shuping , SUONAN Jiale , SONG Guobing , et al . Fault location method for HVDC transmission lines on the basis of the distributed parameter model [J]. Proceedings of the CSEE , 2010 , 30 ( 13 ): 75 - 80 .

周嘉阳 , 李凤婷 , 刘渊 , 等 . 基于直流电抗电压的柔性直流配电网故障测距方法 [J]. 电力系统保护与控制 , 2018 , 46 ( 19 ): 95 - 101 .

ZHOU Jiayang , LI Fengting , LIU Yuan , et al . A fault location method for flexible DC distribution network based on DC rector voltage [J]. Power System Protection and Control , 2018 ,

46 ( 19 ): 95 - 101 .

和敬涵 , 张明 , 罗国敏 , 等 . 一种利用故障暂态过程的柔性直流配电网故障测距方法 [J]. 电网技术 , 2017 , 41 ( 3 ): 985 - 992 .

HE Jinghan , ZHANG Ming , LUO Guomin , et al . A fault location method for flexible DC distribution network based on fault transient process [J]. Power System Technology , 2017 , 41 ( 3 ): 985 - 992 .

秦红霞 , 孙刚 , 时伯年 , 等 . 柔性直流配网极间故障控制保护策略与主设备参数配合研究 [J]. 电力系统保护与控制 , 2016 ,

44 ( 21 ): 150 - 156 . QIN Hongxia , SUN Gang , SHI Bonian , et al . Research on control and protection strategy of MMC based DC distribution grid with interpoles fault [J]. Power System Protection and Control , 2016 , 44 ( 21 ): 150 - 156 .

LI B , HE J , TIAN J , et al . DC fault analysis for modular multilevel converter-based system [J]. Journal of Modern Power Systems and Clean Energy , 2017 , 5 ( 2 ): 275 - 282 .

段国朝 , 王跃 , 尹太元 , 等 . 模块化多电平变流器直流短路故障电流计算 [J]. 电网技术 , 2018 , 42 ( 7 ): 2145 - 2152 .

DUAN Guozhao ， WANG Yue ， YIN Taiyuan ， et al . DC short circuit current calculation for modular multilevel converter [J]. Power System Technology ， 2018 ， 42 ( 7 )： 2145 - 2152 .

王威儒 , 贺之渊 , 李国庆 , 等 . 含交流影响的MMC-HVDC直流故障电流递推计算方法 [J]. 中国电机工程学报 , 2019 , 39 ( 增刊1 ): 313 - 320 .

WANG Weiru , HE Zhiyuan , LI Guoqing , et al . Recursive calculation method for DC fault current of MMC-HVDC with AC influence [J]. Proceedings of the CSEE , 2019 , 39 ( Supplement 1 ): 313 - 320 .

赵成勇 , 李探 , 俞露杰 , 等 . MMC-HVDC直流单极接地故障分析与换流站故障恢复策略 [J]. 中国电机工程学报 , 2014 ,

34 ( 21 ): 3518 - 3526 . ZHAO Chengyong , LI Tan , YU Lujie , et al . DC pole-to-ground fault characteristic analysis and converter fault recovery strategy of MMC-HVDC [J]. Proceedings of the CSEE , 2014 , 34 ( 21 ): 3518 - 3526 .

肖立业，林良真，徐铭铭，等 . 未来电网—多层次直流环形电网与“云电力” [J]. 电工电能新技术， 2011 ， 30 ( 4 )： 64 - 69 .

XIAO Liye ， LIN Liangzhen ， XU Mingming ， et al . Future power grid multiple-level DC loop grid and “cloud powering” [J]. Advanced Technology of Electrical Engineering and Energy ， 2011 ， 30 ( 4 )： 64 - 69 .

奚鑫泽 , 黄文焘 , 张林 , 等 . 基于串联电抗的光伏电站直流汇集接入系统低压电缆综合保护方法 [J]. 电工技术学报 , 2018 , 33 ( 增刊2 ): 608 - 615 .

XI Xinze , HUANG Wentao ， ZHANG Lin , et al . Comprehensive protection method for low-voltage cable of PV plant DC collection system based on series reactance [J]. Transactions of China Electrotechnical Society , 2018 , 33 ( Supplement 2 ): 608 - 615 .

朱冠南 , 杨晓艺 , 高宇航 , 等 . 小电流直流电弧的动态模拟及其稳态特性研究 [J]. 电测与仪表 , 2020 , 57 ( 1 ): 42 - 48 .

ZHU Guannan , YANG Xiaoyi , GAO Yuhang , et al . Study on dynamic simulation and steady-state characteristics of small current DC arcs [J]. Electrical Measurement ＆ Instrumentation , 2020 , 57 ( 1 ): 42 - 48 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Open-circuit Fault Diagnosis and Location Strategy of Switches in Modular Multilevel Converter Based on Dual Sliding Mode Observers

Fault Location Method of Flexible DC Distribution Network Based on Active Control of Fault Current

Distributed Protection Scheme for DC Distribution Network Based on Current Transients

Related Author

BAI Zhihong

JIANG Shouzan

GUO Yongchun

Jun MEI

Bingtian ZHANG

Pengfei ZHU

Rui GE

Lingxiao YAN

Related Institution

College of Electrical Engineering, Zhejiang University

School of Electrical Engineering, Southeast University

NARI Group Corporation (State Grid Electric Power Research Institute)

NR Electric Co., Ltd.

Electric Power Research Institute of State Grid Jiangsu Electric Power Co., Ltd.

⁰