电压暂降事件分类及短路类型识别研究
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摘要
随着现代化敏感电力电子设备的广泛应用以及新型电力负荷的迅速发展,电能质量问题日益受到关注,其中最为突出的就是电压暂降。为了更好地研究电压暂降对电力系统的影响,文中首先根据来源电压暂降事件进行分类,主要来源包括短路故障、大型电机启动和雷电等。接下来对短路故障引起电压暂降进行识别,使电压暂降系统能够根据监测到的暂降波形识别出短路故障类型。最后通过江苏电网电压暂降监测系统中的数据波形的案例分析,归类到4种典型短路故障分类,验证了文中算法的可行性。
With the rapid development of modern power electronic devices and the rapid development of the new type of power load,the problem of power quality is paid more and more attention.In order to study the voltage sags better impact on the power system,firstly,according to the source voltage sag event classification,including the main source of short-circuit fault,large motor starting and lightning,then the voltage sags caused by short circuit fault identification,can make the voltage sag monitoring system according to the waveform recognition a fault type.Finally,through the case analysis of the data waveform of the voltage sag monitoring system in Jiangsu power grid,the paper classifies the four kinds of typical short circuit faults,and verifies the feasibility of the algorithm.
With the rapid development of modern power electronic devices and the rapid development of the new type of power load,the problem of power quality is paid more and more attention.In order to study the voltage sags better impact on the power system,firstly,according to the source voltage sag event classification,including the main source of short-circuit fault,large motor starting and lightning,then the voltage sags caused by short circuit fault identification,can make the voltage sag monitoring system according to the waveform recognition a fault type.Finally,through the case analysis of the data waveform of the voltage sag monitoring system in Jiangsu power grid,the paper classifies the four kinds of typical short circuit faults,and verifies the feasibility of the algorithm.
引文
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[16]姜江.电网技术线损的影响因素和降损措施[J].电力需求侧管理,2016,18(05):45-47.JIANG Jiang.Influencing factors and measures of technical line loss reduction.Power Demand Side Mangment,2016,18(05):45-47.
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[18]陈建华,杜磊,陈天华,等.多控制区多无功源协调的风电集群电压控制[J].江苏电机工程,2016,35(2):47-51.CHEN Jianhua,DU Lei,CHEN Tianhua,et al.Application of wide area synchronized measurement in protection and control of smart grid[J].Jiangsu Electrical Engineering,2016,35(2):47-51.
[2]张宸宇.微网及含微网的配电网电能质量综合控制研究[D].南京:东南大学,2016.ZHANG Chenyu.Research on power quality comprehensive control of microgrid and distribution grid with microgrid[D].Nanjing:Southeast University,2016.
[3]LI Yunwei,HE Jinwei.Distribution system harmonic compensation methods[J].IEEE Industrial Electronics Magazine,2014,12:18-31.
[4]WANG Chengshan,LI Yan,PENG Ke,et al.Coordinatedoptimal design of inverter controllers in a micro-grid with multiple distributed generation units[J].IEEE Trans on Power System,2013,28(3):2679-2687.
[5]王玲,高倩倩,陶顺,等.基于暂降类型判断的短路故障类型识别研究[J].电测与仪表,2013,50(6):8-13.WANG Ling,GAO Qianqian,TAO Shun,et al.Research of short-circuit fault type recognition based on sag type detection[J].Electrical Measurement&Instrumentation,2013,50(6):8-13.
[6]陶顺,肖湘宁.中性点不同接地方式下的电压暂降类型及其在变压器间的传递(二)[J].电工技术学报,2007(10):156-159.TAO Shun,XIAO Xiangning.Voltagesags types under different grounding modes of neutral and their propagation:partⅡ[J].Transactions of China Electrotechnical Society,2007(10):156-159.
[7]肖湘宁,陶顺.中性点不同接地方式下的电压暂降类型及其在变压器间的传递(一)[J].电工技术学报,2007(9):143-147,153.XIAO Xiangning,TAO Shun.Voltagesags types under different grounding modes of neutral and their propagation:part I[J].Transactions of China Electrotechnical Society,2007(9):143-147,153.
[8]杨志超,詹萍萍,严浩军,等.电压暂降原因分析及其源定位综述[J].电力系统及其自动化学报,2014(12):15-20.YANG Zhichao,ZHAN Pingping,YAN Haojun,et al.Review on cause analysis and source location for voltage sag[J].Proceedings of the CSU-EPSA,2014,(12):15-20.
[9]周林,吴红春,孟婧,等.电压暂降分析方法研究[J].高电压技术,2008(5):1010-1016.ZHOU Lin,WU Hongchun,MENG Jing,et al.Study of the voltage sag analysis methods[J].High Voltage Engineering,2008(5):1010-1016.
[10]KUMARS ROUZBEHI,ATASH MIRANIAN,JOSE IGNACIO CANDELA,et al.A generalized voltage droop strategy for control of multiterminal DC grids[J].IEEE Transactions on Industry Applications,2015,51(1):607-618.
[11]ZHANG Chenyu,ZHENG Jianyong,Mei Jun,et al.Control method for fault-tolerant active power filters[J].Journal of Power Electronics,2015,15(3):796-805.
[12]TAE-YONG DOH,JUNG RAE RYOO.Robust approach to repetitive controller design for uncertain feedback control systems[J].IET Control Theory and Applications,2013,7(3):431-439.
[13]HIROFUMI A.Control strategy and site selection of a shunt active power filter damping of harmonic propagation in power distribution system[J].IEEE Trans on Power Delivery,1997,12(1):354-363.
[14]VILATHGAMUWA D M,LOH P C,LI YUNWEI.Protection of microgrids during utility voltage sags[J].IEEE Trans on Industrial Electronics,2006,53(5):1427-1436.
[15]张宸宇,邓凯,史明明,等.基于小波变换的直流主动配电网电压波动源辨识[J].电力工程技术,2017,36(4):21-24,30.ZHANG Chenyu,DENG Kai,SHI Mingming,et al.Identification ofvoltage pollution source based on wavelet transform in DC active distributed network[J].Jiangsu Electrical Engineering,2017,36(4):21-24,30.
[16]姜江.电网技术线损的影响因素和降损措施[J].电力需求侧管理,2016,18(05):45-47.JIANG Jiang.Influencing factors and measures of technical line loss reduction.Power Demand Side Mangment,2016,18(05):45-47.
[17]陈梓铭.基于万有引力搜索算法的电力系统电压无功控制策略研究[J].江苏电机工程,2016,35(1):61-65.CHEN Ziming.Gravitational search algorithm based voltage reactive power control strategy research[J].Jiangsu Electrical Engineering,2016,35(1):61-65.
[18]陈建华,杜磊,陈天华,等.多控制区多无功源协调的风电集群电压控制[J].江苏电机工程,2016,35(2):47-51.CHEN Jianhua,DU Lei,CHEN Tianhua,et al.Application of wide area synchronized measurement in protection and control of smart grid[J].Jiangsu Electrical Engineering,2016,35(2):47-51.