Fault detection method based on LCL fault current controller
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    Abstract:

    Compared with AC distribution network, many problems should be solved in DC distribution network, such as fault current limiting, fault current blocking and power quality control. In order to reduce the number of equipment in DC system, a multi-functional fault current controller topology based on LCL structure is proposed, which has the capacity for fault current limiting, fault current blocking and voltage regulation. On account of the topology structure, the operation principle of LCL structure under different working objectives is studied, and the multiplexing process of filtering and limiting current of LCL structure is clarified. A fast detection method of fault current is also proposed. By matching the threshold value of voltage change rate and current change rate at different positions of current limiting device, the fast judgment of bipolar fault, single pole fault and high resistance fault are realized. Finally, the system simulation model is built to verify the validity of multi-functional of the fault current controller topology, and the rapidity of fault current detection.

    Reference
    [1] 张宸宇, 袁宇波, 袁晓冬, 等. 电力电子变压器直流端口传感器位置选取方法[J]. 电力工程技术, 2020, 39(4):22-27. ZHANG Chenyu, YUAN Yubo, YUAN Xiaodong, et al. Selection of DC port sensor position for power electronic transformer[J]. Electric Power Engineering Technology, 2020, 39(4):22-27.
    [2] 年珩, 孔亮. 环网式直流微网短路故障下断路器与限流器优化配置方法[J]. 中国电机工程学报, 2018, 38(23):6861-6872, 7120. NIAN Heng, KONG Liang. An optimization placement method for circuit breakers and fault current limiters of looped-type DC micro-grids for short circuit faults[J]. Proceedings of the CSEE, 2018, 38(23):6861-6872, 7120.
    [3] 韩乃峥, 贾秀芳, 赵西贝, 等. 一种新型混合式直流故障限流器拓扑[J]. 中国电机工程学报, 2019, 39(6):1647-1658, 1861. HAN Naizheng, JIA Xiufang, ZHAO Xibei, et al. A novel hybrid DC fault current limiter topology[J]. Proceedings of the CSEE, 2019, 39(6):1647-1658, 1861.
    [4] 汪洋, 陈凤云, 肖文, 等. 考虑不确定性和含换电站的直流微电网优化研究[J]. 智慧电力, 2020, 48(7):46-51. WANG Yang, CHEN Fengyun, XIAO Wen, et al. Optimization of DC microgrid considering uncertainty and battery swap station[J]. Smart Power, 2020, 48(7):46-51.
    [5] 薛士敏, 黄仁乐, 高峰, 等. 基于暂态电流突变量的直流配电系统快速纵联保护新原理[J]. 供用电, 2016, 33(8):37-44. XUE Shimin, HUANG Renle, GAO Feng, et al. High-speed pilot protection principle for DC distribution system based on the difference of transient currents[J]. Distribution & Utilization, 2016, 33(8):37-44.
    [6] 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.
    [7] 戴志辉, 黄敏, 苏怀波, 等. 环状柔直配网线路的单端量保护原理[J]. 中国电机工程学报, 2018, 38(23):6825-6836, 7117. DAI Zhihui, HUANG Min, SU Huaibo, et al. Single-terminal quantity based line protection for ring flexible DC distribution system[J]. Proceedings of the CSEE, 2018, 38(23):6825-6836, 7117.
    [8] YEAP Y M, GEDDADA N, SATPATHI K, et al. Time-and frequency-domain fault detection in a VSC-interfaced experimental DC test system[J]. IEEE Transactions on Industrial Informatics, 2018, 14(10):4353-4364.
    [9] 李斌, 何佳伟, 李晔, 等. 基于边界特性的多端柔性直流配电系统单端量保护方案[J]. 中国电机工程学报, 2016, 36(21):5741-5749, 6016. LI Bin, HE Jiawei, LI Ye, et al. Single-ended protection scheme based on boundary characteristic for the multi-terminal VSC-based DC distribution system[J]. Proceedings of the CSEE, 2016, 36(21):5741-5749, 6016.
    [10] 何佳伟, 李斌, 李晔, 等. 多端柔性直流电网快速方向纵联保护方案[J]. 中国电机工程学报, 2017, 37(23):6878-6887, 7078. HE Jiawei, LI Bin, LI Ye, et al. A fast directional pilot protection scheme for the MMC-based MTDC grid[J]. Proceedings of the CSEE, 2017, 37(23):6878-6887, 7078.
    [11] 李博通, 杨昕陆, 李斌, 等. 采用故障阻断型换流器的直流配电网故障处理技术综述[J]. 电力系统自动化, 2020, 44(5):101-113. LI Botong, YANG Xinlu, LI Bin, et al. Overview on fault pro-cessing technology for DC distribution network based on fault blocking converter[J]. Automation of Electric Power Systems, 2020, 44(5):101-113.
    [12] FENG X Y, QI L, PAN J P. A novel fault location method and algorithm for DC distribution protection[C]//2016 IEEE Industry Applications Society Annual Meeting. Portland, OR, USA. IEEE, 2016:1-5.
    [13] DHAR S, PATNAIK R K, DASH P K. Fault detection and location of photovoltaic based DC microgrid using differential protection strategy[J]. IEEE Transactions on Smart Grid, 2018, 9(5):4303-4312.
    [14] LUO G M, TAN Y J, YAO C Y, et al. Deep learning-based fault location of DC distribution networks[J]. The Journal of Engineering, 2019(16):3301-3305.
    [15] 何荣凯, 朱晋, 霍群海, 等. 新型直流电网潮流控制器及其控制方法[J]. 电力系统自动化, 2017, 41(4):131-135, 169. HE Rongkai, ZHU Jin, HUO Qunhai, et al. Novel power flow controller for DC grid and its control method[J]. Automation of Electric Power Systems, 2017, 41(4):131-135, 169.
    [16] 陆静, 陈曦, 吴熙, 等. 含线间潮流控制器的电力系统联合潮流计算[J]. 电力系统保护与控制, 2020, 48(4):22-29. LU Jing, CHEN Xi, WU Xi, et al. Joint power flow calculation of power system with interline power flow controller[J]. Power System Protection and Control, 2020, 48(4):22-29.
    [17] 李国庆, 王浩翔, 王振浩, 等. 含直流潮流控制器的交直流混合系统多目标最优潮流研究[J]. 电力系统保护与控制, 2019, 47(15):124-132. LI Guoqing, WANG Haoxiang, WANG Zhenhao, et al. Study of multi-objective optimal power flow of AC-DC hybrid system with DC power flow controller[J]. Power System Protection and Control, 2019, 47(15):124-132.
    [18] LIU W J, LIU F, ZHA X M, et al. An improved SSCB combining fault interruption and fault location functions for DC line short-circuit fault protection[J]. IEEE Transactions on Power Delivery, 2019, 34(3):858-868.
    [19] 尹靖元, 武文, 吴理心, 等. 串并联多功能复合控制器拓扑结构研究[J]. 电网技术, 2019, 43(2):562-569. YIN Jingyuan, WU Wen, WU Lixin, et al. Topology research of series-parallel multi-function composite controller[J]. Power System Technology, 2019, 43(2):562-569.
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History
  • Received:January 29,2021
  • Revised:April 15,2021
  • Adopted:October 19,2020
  • Online: August 11,2021
  • Published: July 28,2021
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