Characteristic Analysis on Short-circuit Current for Asymmetric Bipolar Modular Multilevel Converter Based Multi-terminal Direct Current Grid

Liping HE; Shilin GAO; Hua YE

doi:10.7500/AEPS20190729014

您当前的位置：

首页 >

文章列表页 >

Characteristic Analysis on Short-circuit Current for Asymmetric Bipolar Modular Multilevel Converter Based Multi-terminal Direct Current Grid

Basic Research | 更新时间：2025-06-16

- Characteristic Analysis on Short-circuit Current for Asymmetric Bipolar Modular Multilevel Converter Based Multi-terminal Direct Current Grid
- Automation of Electric Power Systems Vol. 44, Issue 12, Pages: 101-107(2020)
- 作者机构：
  
  1. 临沂大学自动化与电气工程学院，山东省临沂市 276000
  2. 清华大学电机工程与应用电子技术系，北京市 100084
  3. 山东大学电气工程学院，山东省济南市 250061
- 作者简介：
- 基金信息：
  
  National Key R&D Program of China
- DOI：10.7500/AEPS20190729014
  CLC：
- Received：29 July 2019，
  
  Revised：2020-02-21，
  
  Published Online：24 April 2020，
  
  Published：25 June 2020
- 稿件说明：
移动端阅览
何莉萍,高仕林,叶华.不对称双极多端柔性直流电网短路电流特性分析[J].电力系统自动化,2020,44(12):101-107.

HE Liping,GAO Shilin,YE Hua.Characteristic Analysis on Short-circuit Current for Asymmetric Bipolar Modular Multilevel Converter Based Multi-terminal Direct Current Grid[J].Automation of Electric Power Systems,2020,44(12):101-107.
何莉萍,高仕林,叶华.不对称双极多端柔性直流电网短路电流特性分析[J].电力系统自动化,2020,44(12):101-107. DOI： 10.7500/AEPS20190729014.

HE Liping,GAO Shilin,YE Hua.Characteristic Analysis on Short-circuit Current for Asymmetric Bipolar Modular Multilevel Converter Based Multi-terminal Direct Current Grid[J].Automation of Electric Power Systems,2020,44(12):101-107. DOI： 10.7500/AEPS20190729014.

摘要

含金属回线的不对称双极柔性直流电网的短路电流特性分析是其故障类型判别和故障隔离的基础。不对称双极电网发生各种故障时的短路电流具有相似的特性，难以区分。文中针对不对称双极多端直流电网的短路电流特性进行分析。首先，建立直流电网的等效电路，其中换流器和线路分别简化为RLC串联电路和RL串联电路；然后，基于建立的等效电路，分析了单端换流站的短路电流特性；最后，基于单端换流站短路电流特性，分析各换流站的放电回路，研究了不对称双极多端柔性直流电网在各种故障类型下的短路电流特性。中国张北双极柔性直流电网的仿真结果验证了分析得到的多端柔性直流电网短路电流特性的正确性。

Abstract

Characteristic analysis on short-circuit current for asymmetric bipolar modular multilevel converter (MMC) based multi-terminal direct current (MMC-MTDC) grid with dedicated metallic return (DMR) is the foundation of its fault type discrimination and fault isolation. The characteristics of short-circuit currents with different faults are similar

which are difficult to distinguish. This paper analyzes the short-circuit current characteristics of asymmetric bipolar MTDC grids. Firstly

the equivalent circuit of the MTDC grid is established

where the converter and overhead line are simplified to RLC series circuit and RL series circuit

respectively. Then

based on this

the short-circuit current characteristics of a single-terminal converter station are analyzed. Finally

based on the short-circuit current characteristics of a single-terminal converter station

the short-circuit current characteristics of the asymmetric bipolar MMC-MTDC grid with various faults are studied by analyzing the discharging circuit of MMCs. Simulation results on the Zhangbei bipolar MMC-MTDC grid of China validate the correctness of the characteristic analysis on short-circuit current for MMC-MTDC grids.

关键词

Keywords

references

RODRIGUEZ P , ROUZBEHI K . Multi-terminal DC grids: challenges and prospects [J]. Journal of Modern Power Systems and Clean Energy , 2017 , 5 ( 4 ): 515 - 523 .

赵西贝 , 许建中 , 卢铁兵 , 等 . 采用架空线的MMC-HVDC单极接地过电压分析 [J]. 电力系统自动化 , 2018 , 42 ( 7 ): 44 - 49 .

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 .

LI Bin , HE Jiawei , TIAN Jie , 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 .

王姗姗 , 周孝信 , 汤广福 , 等 . 模块化多电平换流器HVDC直流双极短路子模块过电流分析 [J]. 中国电机工程学报 , 2011 , 31 ( 1 ): 1 - 7 .

WANG Shanshan , ZHOU Xiaoxin , TANG Guangfu , et al . Analysis of submodule overcurrent caused by DC pole-to-pole fault in modular multilevel converter HVDC system [J]. Proceedings of the CSEE , 2011 , 31 ( 1 ): 1 - 7 .

郭晓茜 , 崔翔 , 齐磊 . 架空线双极MMC-HVDC系统直流短路故障分析和保护 [J]. 中国电机工程学报 , 2017 , 37 ( 8 ): 2177 - 2184 .

GUO Xiaoqian , CUI Xiang , QI Lei . DC short-circuit fault analysis and protection for the overhead line bipolar MMC-HVDC system [J]. Proceedings of the CSEE , 2017 , 37 ( 8 ): 2177 - 2184 .

王江天 , 王兴国 , 马静 , 等 . 双极MMC-HVDC系统故障限流及换流器快速重启策略研究 [J]. 中国电机工程学报 , 2017 , 37 ( 增刊1 ): 21 - 29 .

WANG Jiangtian , WANG Xingguo , MA Jing , et al . Research on fault current limiting and fast restart strategy for the bipolar MMC-HVDC system [J]. Proceedings of the CSEE , 2017 , 37 ( Supplement 1 ): 21 - 29 .

孙栩 , 王华伟 , 雷霄 , 等 . 架空线柔性直流电网的直流短路电流限制研究 [J]. 电力自动化设备 , 2017 , 37 ( 2 ): 219 - 223 .

SUN Xu , WANG Huawei , LEI Xiao , et al . Restriction of DC short circuit current for overhead lines of flexible DC grid [J]. Electric Power Automation Equipment , 2017 , 37 ( 2 ): 219 - 223 .

LI Chengyu , ZHAO Chengyong , XU Jianzhong , et al . A pole-to-pole short-circuit fault current calculation method for DC grids [J]. IEEE Transactions on Power Systems , 2017 , 32 ( 6 ): 4943 - 4953 .

ZHANG Zheren , XU Zheng . Short-circuit current calculation and performance requirement of HVDC breakers for MMC-MTDC systems [J]. IEEJ Transactions on Electrical & Electronic Engineering , 2016 , 11 ( 2 ): 168 - 177 .

汤兰西 , 董新洲 . MMC直流输电网线路短路故障电流的近似计算方法 [J]. 中国电机工程学报 , 2019 , 39 ( 2 ): 490 - 498 .

TANG Lanxi , DONG Xinzhou . An approximate method for the calculation of transmission line fault current in MMC-HVDC grid [J]. Proceedings of the CSEE , 2019 , 39 ( 2 ): 490 - 498 .

王艳婷 , 张保会 , 范新凯 . 柔性直流电网架空线路快速保护方案 [J]. 电力系统自动化 , 2016 , 40 ( 21 ): 13 - 19 .

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 .

XIANG Wang , YANG Saizhao , XU Lie , et al . A transient voltage-based DC fault line protection scheme for MMC-based DC grid embedding DC breakers [J]. IEEE Transactions on Power Delivery , 2019 , 34 ( 1 ): 334 - 345 .

LI Rui , XU Lie , YAO Liangzhong . DC fault detection and location in meshed multi-terminal HVDC systems based on DC reactor voltage change rate [J]. IEEE Transactions on Power Delivery , 2016 , 32 ( 3 ): 1516 - 1526 .

周家培 , 赵成勇 , 李承昱 , 等 . 基于直流电抗器电压的多端柔性直流电网边界保护方案 [J]. 电力系统自动化 , 2017 , 41 ( 19 ): 89 - 94 .

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 .

余修勇 , 肖立业 , 林良真 , 等 . 基于单端量的柔性直流电网故障识别方案 [J]. 高电压技术 , 2018 , 44 ( 2 ): 440 - 447 .

YU Xiuyong , XIAO Liye , LIN Liangzhen , et al . Single-ended fast fault detection scheme for MMC-based HVDC [J]. High Voltage Engineering , 2018 , 44 ( 2 ): 440 - 447 .

张峻榤 , 向往 , 饶宏 , 等 . 含直流断路器的架空柔性直流电网直流故障保护方案研究 [J]. 中国电机工程学报 , 2018 , 38 ( 16 ): 4631 - 4645 .

ZHANG Junjie , XIANG Wang , RAO Hong , et al . Research on DC fault protection scheme of overhead MMC based DC grid with DC circuit breaker [J]. Proceedings of the CSEE , 2018 , 38 ( 16 ): 4631 - 4645 .

裴翔羽 , 汤广福 , 张盛梅 , 等 . 双极柔性直流电网短路电流暂态特性分析 [J]. 全球能源互联网 , 2018 , 1 ( 4 ): 403 - 412 .

PEI Xiangyu , TANG Guangfu , ZHANG Shengmei , et al . Analysis on transient characteristics of short-circuit current for bipolar VSC based DC grid [J]. Journal of Global Energy Interconnection , 2018 , 1 ( 4 ): 403 - 412 .

TÜNNERHOFF P , RUFFING P , SCHNETTLER A . Comprehensive fault type discrimination concept for bipolar full-bridge-based MMC HVDC systems with dedicated metallic return [J]. IEEE Transactions on Power Delivery , 2018 , 33 ( 1 ): 330 - 339 .

XU Jianzhong , GOLE A M , ZHAO Chengyong . The use of averaged-value model of modular multilevel converter in DC grid [J]. IEEE Transactions on Power Delivery , 2015 , 30 ( 2 ): 519 - 528 .

朱思丞 , 赵成勇 , 许建中 . 含多类型故障限流设备动作的直流电网保护时序配合 [J]. 电力系统自动化 , 2019 , 43 ( 21 ): 195 - 207 .

ZHU Sicheng , ZHAO Chengyong , XU Jianzhong . Time-sequence coordination of protection in DC grid with multi-type fault current limiting devices [J]. Automation of Electric Power Systems , 2019 , 43 ( 21 ): 195 - 207 .

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Arm Energy Compensation Based Model Predictive Control Strategy for Modular Multilevel Converter Under Low-frequency Condition

MMC电容能量对交流系统惯量支撑能力分析

用于大规模新能源架空线路送出的储能型柔性直流输电系统

Related Author

YANG Xingwu

YANG Zhenwen

WANG Yani

JIANG Youhua

ZHANG Yuhua

SONG Jinfeng

LIN Junjie

ZHANG Haobo

Related Institution

College of Electrical Engineering, Shanghai University of Electric Power

College of Electronics and Information Engineering, Shanghai University of Electric Power

Shanghai Electric Group Co., Ltd.

School of Electric Power, South China University of Technology

⁰