LINE PROTECTION METHOD FOR THREE TERMINAL FLEXIBLE DC DISTRIBUTION NETWORK BASED ON VARIATION CHARACTERISTICS OF CURRENT FAULT COMPONENTS

Gao Shuping; Zuo Junjie; Song Guobing; Shen Quwang; Li Yuanze

doi:10.19912/j.0254-0096.tynxb.2022-0538

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Acta Energiae Solaris Sinica ›› 2023, Vol. 44 ›› Issue (8) : 139-148. DOI: 10.19912/j.0254-0096.tynxb.2022-0538

LINE PROTECTION METHOD FOR THREE TERMINAL FLEXIBLE DC DISTRIBUTION NETWORK BASED ON VARIATION CHARACTERISTICS OF CURRENT FAULT COMPONENTS

Gao Shuping¹, Zuo Junjie¹, Song Guobing², Shen Quwang¹, Li Yuanze¹

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Abstract

This paper analyzes the fault characteristics by using the difference of current loop when different faults occur in the equivalent circuit composed of modular multilevel converter（MMC） converter and input series output parallel-dual active bridge（ISOP-DAB） converter, and verifies it with theoretical data analysis. A protection method using the absolute value change characteristics of current fault components of double ended lines to judge the internal and external faults and fault pole selection is proposed. Finally, a three terminal flexible DC distribution network model with distributed energy is established on PSCAD/EMTDC to output fault data. The protection algorithm is implemented using Matlab to verify the feasibility of the proposed protection scheme.

Key words

renewable energy / fault detection / equivalent circuit / three terminal flexible DC distribution network / fault characteristic analysis

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Gao Shuping, Zuo Junjie, Song Guobing, Shen Quwang, Li Yuanze. LINE PROTECTION METHOD FOR THREE TERMINAL FLEXIBLE DC DISTRIBUTION NETWORK BASED ON VARIATION CHARACTERISTICS OF CURRENT FAULT COMPONENTS[J]. Acta Energiae Solaris Sinica. 2023, 44(8): 139-148 https://doi.org/10.19912/j.0254-0096.tynxb.2022-0538

References

[1] 赵军, 李扬, 李浩, 等. 中低温能源在中国[J]. 太阳能学报, 2022, 43(2): 250-260.
ZHAO J, LI Y, LI H, et al.Mid-/low-temperature energy in China[J]. Acta energiae solaris sinica, 2022, 43(2): 250-260.
[2] 张文亮, 汤广福, 查鲲鹏, 等. 先进电力电子技术在智能电网中的应用[J]. 中国电机工程学报, 2010, 30(4):1-7.
ZHANG W L, TANG G F, ZHA K P, et al.Application of advanced power electronics in smart grid[J]. Proceedings of the CSEE, 2010, 30(4): 1-7.
[3] 王珍意, 黄文杰, 赵川, 等. 含分布式电源的中压柔性直流配电网研究[J]. 电力科学与技术学报, 2020, 35(1): 102-108.
WANG Z Y, HUANG W J, ZHAO C, et al.Research on flexible medium voltage DC distribution network with distributed generation[J]. Journal of electric power science and technology, 2020, 35(1): 102-108.
[4] YANG Y C, HUANG C, XU Q M.A fault location method suitable for low-voltage DC line[J]. IEEE transactions on power delivery, 2020, 35(1): 194-204.
[5] 周登钰, 张新燕, 赵理飞, 等. 含大规模风光功率汇集的多端柔性直流系统分析[J]. 太阳能学报, 2020, 41(2): 93-100.
ZHOU D Y, ZHANG X Y, ZHAO L F, et al.Analysis of multi-terminal flexible DC system with large scale power collection[J]. Acta energiae solaris sinica, 2020, 41(2): 93-100.
[6] DUAN J D, LI Z N, ZHOU Y, et al.Study on the voltage level sequence of future urban DC distribution network in China: a review[J]. International journal of electrical power & energy systems, 2020, 117: 105640.
[7] 王圣辉, 范春菊, 姜山. 基于暂态电压比原理的直流配电网故障保护方案[J]. 电力自动化设备, 2020, 40(7): 196-203.
WANG S H, FAN C J, JIANG S, et al.Fault protection scheme for DC distribution network based on ratio of transient voltage principle[J]. Electric power automation equipment, 2020, 40(7): 196-203.
[8] WANG Y Z, YUAN Z C, FU J, et al.A feasible coordination protection strategy for MMC-MTDC systems under DC faults[J]. International journal of electrical power & energy systems, 2017, 90: 103-111.
[9] TANG L X, OOI B T.Managing zero sequence in voltage source converter[C]//Conference Record of the 2022 IEEE Industry Application Conference, 37th Annual Meeting, Pittsburgh, PA, USA, 2002: 795-802.
[10] 徐岩, 刘婧妍, 张诗杭, 等. 基于遗传算法的直流配电网线路故障定位方法[J]. 太阳能学报, 2020, 41(12): 1-8.
XU Y, LIU J Y, ZHANG S H, et al.Fault location method based on genetic algorithm for DC distribution network[J]. Acta energiae solaris sinica, 2020, 41(12): 1-8.
[11] 徐岩, 刘婧妍. 直流系统故障选线和故障类型识别方法研究[J]. 太阳能学报, 2018, 39(8): 2279-2286.
XU Y,LIU J Y.Research of fault line selection and fault type recognition method of DC system based on Graph theory[J]. Acta energiae solaris sinica, 2018,39(8): 2279-2286.
[12] 王聪博, 贾科, 毕天姝, 等. 基于暂态电流波形相似度识别的柔性直流配电线路保护[J]. 电网技术, 2019, 43(10): 3823-3832.
WANG C B, JIA K, BI T S, et al.Protection for flexible DC distribution system based on transient current waveform similarity identification[J]. Power system technology, 2019, 43(10): 3823-3832.
[13] 李再男, 段建东, 路文超, 等. 柔性中压直流配电网线路加速纵联保护[J]. 电力系统自动化, 2021, 45(9): 80-88.
LI Z N, DUAN J D, LU W C, et al.Accelerated line pilot protection of flexible MVDC distribution network[J]. Automation of electric power systems,2021, 45(9): 80-88.
[14] 陈少宇, 黄文焘, 邰能灵, 等. 基于单端暂态电压的含限流电抗器直流配电网保护方法[J]. 电力系统自动化, 2021, 45(8): 185-193.
CHEN S Y, HUANG W T, TAI N L, et al.Protection method based on single-terminal transient voltage for DC distribution network with current limiting reactor[J]. Automation of electric power systems, 2021, 45(8): 185-193.
[15] 戴志辉, 刘雪燕, 刘自强, 等. 基于限流电抗电压积分值的环状柔性直流配电网保护方案[J]. 电力自动化设备, 2020, 40(12): 104-116.
DAI Z H, LIU X Y, LIU Z Q, et al.Protection scheme for ring flexible DC distribution grids based on integration of current-limiting reactance voltage[J]. Electric power automation equipment, 2020, 40(12): 104-116.
[16] 高飘, 郑晓冬, 晁晨栩, 等. 基于边界暂态能量的多端柔性直流输电线路保护[J]. 电力系统自动化, 2021, 45(17): 171-179.
GAO P, ZHENG X D, CHAO C X, et al.Protection for multi-terminal flexible DC transmission lines based on boundary transient energy[J]. Automation of electric power systems, 2021, 45(17): 171-179.
[17] 郑涛, 吴琼, 吕文轩, 等. 基于直流电流过零特征的柔性直流配电网保护方案研究[J]. 电网技术, 2020, 44(5):1806-1815.
ZHENG T, WU Q, LYU W X, et al.Research on protection scheme of flexible DC distribution grids based on DC current zero-crossing characteristics[J]. Power system technology, 2020, 44(5): 1806-1815.
[18] 薛英林, 徐政. C-MMC直流故障穿越机理及改进拓扑方案[J]. 中国电机工程学报, 2013, 33(21): 63-70.
XUE Y L, XU Z.DC Fault ride-through mechanism and improved topology scheme of C-MMC[J]. Proceedings of the CSEE, 2013, 33(21): 63-70.
[19] JIA K, ZHAO Q J, ZHU Z X, et al.Modeling of DC distribution system based on high frequency transient components[J]. IEEE transactions on smart grid, 2021, 12(1): 671-679.
[20] 孙丽敬, 张海, 刘瑛琳, 等. 一种基于极性判别的环状直流配电网线路后备保护方法[J]. 电力建设, 2018, 39(6): 49-55.
SUN L J, ZHANG H, LIU Y L, et al.Study on the back-up protection method for loop DC distribution lines based on polarity discrimination[J]. Electric power construction, 2018, 39(6): 49-55.
[21] 刘思源, 徐东旭, 梅念, 等. 直流侧故障对模块化多电平换流器的影响研究[J]. 电力系统保护与控制, 2017, 45(10): 48-54.
LIU S Y, XU D X, MEI N, et al.Research on the effect of DC side fault on modular multilevel converter[J]. Power system protection and control, 2017, 45(10): 48-54.