直流微电网故障定位研究综述
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摘要
综述了国内外直流微电网故障定位的研究现状。首先,分析了直流微电网故障定位的基础,指出直流微电网接地方式的选取和故障特征分析对故障定位的重要性。之后,对现有直流微电网故障定位原理进行归类研究,将直流微电网故障定位方法分为注入信号法和故障分析法,指出:各类算法均有优缺点;注入信号法适用于离线故障定位,故障分析法适用于在线故障定位,2种定位方法的准确性均受过渡电阻影响大;现有故障定位算法无法同时对单极接地故障和极间短路故障进行定位,且制约其定位准确性的因素多。最后,指出直流微电网故障定位面临的关键问题,并对未来直流微电网故障定位进行展望。
This paper summarizes research status of fault location for the DC microgrid at home and abroad. It firstly analyzes foundation of fault location for the DC microgrid and points out importance of selection of grounding mode and analysis on fault characteristic for fault location. Then it classifies and studies current fault location principles, divides the fault location methods for the DC microgrid into the injection signal method and the fault analysis method, and points out advantages and disadvantages of different methods. The injection signal method is suitable for offline fault location while the fault analysis method is suitable for online fault location, but accuracy of these two methods are greatly affected by transition resistance. Current fault location algorithms can not locate pole-to-ground fault and pole-pole fault at the same time and there are many factors restricting location veracity. Finally, it points out key problems in fault location for the DC microgrid and makes prospects for future fault location for the DC microgrid.
This paper summarizes research status of fault location for the DC microgrid at home and abroad. It firstly analyzes foundation of fault location for the DC microgrid and points out importance of selection of grounding mode and analysis on fault characteristic for fault location. Then it classifies and studies current fault location principles, divides the fault location methods for the DC microgrid into the injection signal method and the fault analysis method, and points out advantages and disadvantages of different methods. The injection signal method is suitable for offline fault location while the fault analysis method is suitable for online fault location, but accuracy of these two methods are greatly affected by transition resistance. Current fault location algorithms can not locate pole-to-ground fault and pole-pole fault at the same time and there are many factors restricting location veracity. Finally, it points out key problems in fault location for the DC microgrid and makes prospects for future fault location for the DC microgrid.
引文
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[26] 宋国兵,蔡新雷,高淑萍,等.高压直流输电线路故障定位研究综述[J].电力系统保护与控制,2012,40(5):133-135.SONG Guobing,CAI Xinlei,GAO Shuping,et al.Survey of fault location research for HVDC transmission lines[J].Power System Protection and Control,2012,40(5):133-135.
[27] NANAYAKKARA K,RAJAPAKSE A,WACHAL R.Traveling-wave-based line fault location in star-connected multiterminal HVDC systems[J].IEEE Transactions on Power Delivery,2012,27(4):2286-2294.
[28] AZIZI S,SANAYE-PASAND M,ABEDINI M,et al.A traveling wave-based methodology for wide area fault location in multiterminal DC systems[J].IEEE Transactions on Power Delivery,2014,29(6):2552-2560.
[29] 陆海龙,刘静,王宏,等.基于EEMD及波速度变化特性的直流线路故障测距研究[J].陕西电力,2016,44(2):26-32,38.LU Hailong,LIU Jing,WANG Hong,et al.EEMD and traveling-wave location method for speed characteristics based fault HVDC transmission lines[J].Shaanxi Electric Power,2016,44(2):26-32,38.
[30] BEHESHTAEIN S,YU J,CUZNER R M.A novel wavelet-based feature extraction from common mode currents for fault location in a residential DC microgrid[C]//2017 IEEE 7th International Conference on Renewable Energy Research and Applications (ICRERA).Piscataway:IEEE Press,2017:706-711.
[31] YANG R,CUZNER R M.Single ground fault location algorithm in DC microgrid based on wavelet transform[C]//2016 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA).Piscataway:IEEE Press,2016:907-912.
[32] MOHANTY R,BALAJI U S M,PRADHAN A K.An accurate noniterative fault-location technique for low-voltage DC microgrid[J].IEEE Transactions on Power Delivery,2016,31(2):475-481.
[33] DEHGHANPOUR E,KHEIROLLAHI R.Developing a new fault location topology for DC microgrid systems[C]//2016 7th Power Electronics and Drive Systems Technologies Conference (PEDSTC).Piscataway:IEEE Press,2016:297-301.
[34] 贾科,李论,宣振文,等.基于扰动注入的柔性直流配电网主动故障定位及其仿真研究[J].电力系统保护与控制,2019,47(4):99-106.JIA Ke,LI Lun,XUAN Zhenwen,et al.Study on fault location method and simulation for VSC-DC distribution network based ondisturbance injection[J].Power System Protection and Control,2019,47(4):99-106.
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[36] 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,2017,9(5):4303-4312.
[37] FENG X,QI L,PAN J.A novel fault location method and algorithm for DC distribution protection[J].IEEE Transactions on Industry Applications,2017,53(3):1834-1840.
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[2] 温家良,吴锐,彭畅,等.直流电网在中国的应用前景分析[J].中国电机工程学报,2012,32(13):7-12.WEN Jialiang,WU Rui,PENG Chang,et al.Analysis of DC grid prospects in China[J].Proceedings of the CSEE,2012,32(13):7-12.
[3] 刘树,赵宇明,陈莉,等.柔性直流配电网控制保护系统设计与策略研究[J].供用电,2018,35(1):21-27,39.LIU Shu,ZHAO Yuming,CHEN Li,et al.Research on control and protection strategy and design scheme of VSC-DC distribution network control and protection system[J].Distribution & Utilization,2018,35(1):21-27,39.
[4] 邓得政,刘畅,李庚银.直流配电网经济调度方法研究[J].分布式能源,2018,3(2):39-46.DENG Dezheng,LIU Chang,LI Gengyin.Economic dispatch method of DC distribution network[J].Distributed Energy,2018,3(2):39-46.
[5] 薛士敏,齐金龙,刘冲.直流微网保护综述[J].中国电机工程学报,2016,36(13):3404-3412.XUE Shimin,QI Jinlong,LIU Chong.A research review of protection for DC mcrogrid[J].Proceedings of the CSEE,2016,36(13):3404-3412.
[6] 李霞林,郭力,王成山,等.直流微电网关键技术研究综述[J].中国电机工程学报,2016,36(1):2-17.LI Xialin,GUO Li,WANG Chengshan,et al.Key technologies of DC microgrids:an overview[J].Proceedings of the CSEE,2016,36(1):2-17.
[7] HAKALA T,LAHDEAHO T,JARVENTAUSTA P.Low-voltage DC distribution-utilization potential in a large distribution network company[J].IEEE Transactions on Power Delivery,2015,30(4):1694-1701
[8]DRAGI■EVíCT,LU X, VASQUEZ J C,,et al.DC microgrids-part II:a review of power architectures,applications,and standardization issues[J].IEEE Transactions on Power Electronics,2016,31(5):3528-3549.
[9] PLANAS E,ANDREU J,GáRATE J I,et al.AC and DC technology in microgrids:a review[J].Renewable and Sustainable Energy Reviews,2015,43:726-749.
[10] BEHESHTAEIN S,SAVAGHEBI M,VASQUEZ J C,et al.Protection of AC and DC microgrids:challenges,solutions and future trends[C]//IECON 2015-41st Annual Conference of the IEEE Industrial Electronics Society.Piscataway:IEEE Press,2015:5253-5260.
[11] 刘鑫蕊,谢志远,孙秋野,等.低压双极性直流微网故障分析及保护方案[J].电网技术,2016,40(3):749-755.LIU Xinrui,XIE Zhiyuan,SUN Qiuye,et al.Fault analysis and protection for LV bipolar DC microgrid[J].Power System Technology,2016,40(3):749-755.
[12] 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.
[13] MONADI M,GAVRILUTA C,LUNA A,et al.Centralized protection strategy for medium voltage DC microgrids[J].IEEE Transactions on Power Delivery,2017,32(1):430-440.
[14] ZUBIETA L E.Power management and optimization concept for DC microgrids[C]//2015 IEEE First International Conference on DC Microgrids (ICDCM).Piscataway:IEEE Press,2015:81-85.
[15] 贺海博.直流微电网协调控制策略研究[D].北京:华北电力大学,2016.
[16] KROPOSKI B,PINK C,BASSO T,et al.Microgrid standards and technology development[C] //IEEE Power Engineering Society General Meeting,2007.Piscataway:IEEE Press,2017:235-239.
[17] SALOMONSSON D,S?DER L,SANNINO A.Protection of low-voltage DC microgrids[J].IEEE Transactions on Power Delivery,2009,24(3):1045-1053.
[18] 薛士敏,齐金龙,刘冲,等.直流微网接地方式及新型保护原理[J].电网技术,2018,42(1):48-55.XUE Shimin,QI Jinlong,LIU Chong,et al.A research of grounding mode and new protection principle for DC microgrids[J].Power System Technology,2018,42(1):48-55.
[19] 王毅,于明,张丽荣.环形直流微网短路故障分析及保护方法[J].电力自动化设备,2017,37(2):7-14.WANG Yi,YU Ming,ZHANG Lirong.Short circuit fault analysis and protection scheme for looped DC microgrid[J].Electric Power Automation Equipment,2017,37(2):7-14.
[20] YANG J,FLETCHER J E,O’REILLY J.Short-circuit and ground fault analyses and location in VSC-based DC network cables[J].IEEE Transactions on Industrial Electronics,2012,59(10):3827-3837.
[21] 胡竞竞,高一波,严玉婷,等.电压源换流器直流侧短路故障特性分析[J].机电工程,2014(4):512-516.HU Jingjing,GAO Yibo,YAN Yuting,et al.DC side short-circuit fault analysis of VSC[J].Journal of Mechanical & Electrical Engineering,2014(4):512-516.
[22] 李斌,何佳伟.柔性直流配电系统故障分析及限流方法[J].中国电机工程学报,2015,35(12):3026-3036.LI Bin,HE Jiawei.DC fault analysis and current limiting technique for VSC-based DC distribution system[J].Proceedings of the CSEE,2015,35(12):3026-3036.
[23] 张浩,王先为,马焕,等.基于MMC的直流电网短路电流分析及保护策略[J].智慧电力,2019,47(2):93-100.ZHANG Hao,WANG Xianwei,MA Huan,et al.Short circuit current analysis in DC grid and its protection strategy based on modular multilevel converter[J].Smart Power,2019,47(2):93-100.
[24] 徐铭铭,王鹏,高明春.基于潮流计算的直流配电网单极接地故障定位算法[J].电力系统保护与控制,2018,46(8):103-109.XU Mingming,WANG Peng,GAO Mingchun.A fault location algorithm for the single-pole-to-ground fault of DC distribution network based on power flow calculation[J].Power System Protection and Control,2018,46(8):103-109.
[25] 朱清代,张纯,石玉东,等.直流输电单极故障引发接地极线路击穿的定位方法研究[J].电力系统保护与控制,2018,46(12):64-70.ZHU Qingdai,ZHANG Chun,SHI Yudong,et al.Research on location method of grounding electrode line fault caused by unipolar fault of HVDC transmission system[J].Power System Protection and Control,2018,46(12):64-70.
[26] 宋国兵,蔡新雷,高淑萍,等.高压直流输电线路故障定位研究综述[J].电力系统保护与控制,2012,40(5):133-135.SONG Guobing,CAI Xinlei,GAO Shuping,et al.Survey of fault location research for HVDC transmission lines[J].Power System Protection and Control,2012,40(5):133-135.
[27] NANAYAKKARA K,RAJAPAKSE A,WACHAL R.Traveling-wave-based line fault location in star-connected multiterminal HVDC systems[J].IEEE Transactions on Power Delivery,2012,27(4):2286-2294.
[28] AZIZI S,SANAYE-PASAND M,ABEDINI M,et al.A traveling wave-based methodology for wide area fault location in multiterminal DC systems[J].IEEE Transactions on Power Delivery,2014,29(6):2552-2560.
[29] 陆海龙,刘静,王宏,等.基于EEMD及波速度变化特性的直流线路故障测距研究[J].陕西电力,2016,44(2):26-32,38.LU Hailong,LIU Jing,WANG Hong,et al.EEMD and traveling-wave location method for speed characteristics based fault HVDC transmission lines[J].Shaanxi Electric Power,2016,44(2):26-32,38.
[30] BEHESHTAEIN S,YU J,CUZNER R M.A novel wavelet-based feature extraction from common mode currents for fault location in a residential DC microgrid[C]//2017 IEEE 7th International Conference on Renewable Energy Research and Applications (ICRERA).Piscataway:IEEE Press,2017:706-711.
[31] YANG R,CUZNER R M.Single ground fault location algorithm in DC microgrid based on wavelet transform[C]//2016 IEEE 6th International Conference on Renewable Energy Research and Applications (ICRERA).Piscataway:IEEE Press,2016:907-912.
[32] MOHANTY R,BALAJI U S M,PRADHAN A K.An accurate noniterative fault-location technique for low-voltage DC microgrid[J].IEEE Transactions on Power Delivery,2016,31(2):475-481.
[33] DEHGHANPOUR E,KHEIROLLAHI R.Developing a new fault location topology for DC microgrid systems[C]//2016 7th Power Electronics and Drive Systems Technologies Conference (PEDSTC).Piscataway:IEEE Press,2016:297-301.
[34] 贾科,李论,宣振文,等.基于扰动注入的柔性直流配电网主动故障定位及其仿真研究[J].电力系统保护与控制,2019,47(4):99-106.JIA Ke,LI Lun,XUAN Zhenwen,et al.Study on fault location method and simulation for VSC-DC distribution network based ondisturbance injection[J].Power System Protection and Control,2019,47(4):99-106.
[35] PAZ F,ORDONEZ M.Embedded fault location in DC microgrid systems based on a lock-in amplifier[C]//2017 IEEE 8th International Symposium on Power Electronics for Distributed Generation Systems (PEDG).Piscataway:IEEE Press,2017:1-6.
[36] 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,2017,9(5):4303-4312.
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