城市电网电压暂降事件聚类分析
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摘要
随着电压暂降问题日益突出,用户设备的电压暂降敏感性测试已成为研究热点。但三相设备的仿真测试中,缺乏贴近电网实际暂降的电压暂降样本库。为此,文章对某地区2015–2016年电网中实际电压暂降监测数据为数据源进行了聚类分析,采用两步聚类的方法,通过聚类变量的F校验,将电压暂降分为聚类成4类,并归纳了每一类电压暂降的幅值特征及其发生频率,为建立电压暂降样本库提供了依据。
With the voltage sag becoming more and more serious,the voltage sag Sensitivity test of equipment has become a research hotspot. However,in the simulations and tests of three-phase equipment,there is no voltage sag sample database that closes to the actual grid voltage sags. This paper classifies voltage sags in one urban power networks during 2015-2016. By using the method of two step clustering and F check method,the voltage sags are divided into four categories. The key characteristics and frequencies of each type voltage sag are summarized. The results provides the basis for the establishment of voltage sag sample database.
With the voltage sag becoming more and more serious,the voltage sag Sensitivity test of equipment has become a research hotspot. However,in the simulations and tests of three-phase equipment,there is no voltage sag sample database that closes to the actual grid voltage sags. This paper classifies voltage sags in one urban power networks during 2015-2016. By using the method of two step clustering and F check method,the voltage sags are divided into four categories. The key characteristics and frequencies of each type voltage sag are summarized. The results provides the basis for the establishment of voltage sag sample database.
引文
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[2]李情,程良伦,马智远.照明灯具电压暂降容忍度机理建模及试验分析[J].电器与能效管理技术,2016(20):53-57.LI Qing,CHENG Lianglun,MA Zhiyuan.Theory modeling and experimental analysis of lighting lamps voltage sag tolerance[J].Electrical&Energy Management Technology,2016(20):53-57.
[3]欧阳森,刘平,吴彤彤,等.低压脱扣器电压暂降敏感性试验研究[J].电网技术,2015,39(2):575-581.OUYANG Sen,LIU Ping,WU Tongtong,et al.Experimental research on sensitivity of low voltage releaser to voltage sag[J].Power System Technology,2015,39(2):575-581.
[4]陈海涛,钟庆,张尧.敏感设备电压暂降免疫度的仿真和分析[J].电力科学与技术学报,2013,28(3):65-70,82.CHEN Haitao,ZHONG Qing,ZHANG Yao.Simulation and analysis on the immunity degree of voltage sag for sensitive equipment[J].Journal of Electric Power Science and Technology,2013,28(3):65-70,82.
[5]DJOKIC S Z,STOCKMAN K,MILANOVIC J V,et al.Sensitivity of AC adjustable speed drives to voltage sags and short interruptions[J].IEEE Transactions on Power Delivery,2005,20(1):494-505.
[6]BOLLEN M H J,ZHANG L D.Analysis of voltage tolerance of AC adjustable-speed drives for three-phase balanced and unbalanced sags[J].IEEE Transactions on Industry Applications,2000,36(3):904-910.
[7]WELDEMARIAM L E,G腞TNER H J,CUK V,et al.Experimental investigation on the sensitivity of an industrial process to voltage dips[C]//2015 IEEE Eindhoven PowerTech,Eindhoven,2015:1-6.
[8]Daniel TLarose.数据挖掘方法与模型[M].北京:高等教育出版社,2011:16-18.
[9]田世明,杨增辉,时志雄,等.智能配用电大数据关键技术研究[J].供用电,2015,32(8):12-18.TIAN Shiming,YANG Zenghui,SHI Zhixiong,et al.Research on the key technology of big data for smart power distribution and utilization[J].Distribution&Utilization,2015,32(8):12-18.
[10]刘峰.大数据分析在配电网统计数据中的应用探索[D].广州:华南理工大学,2016.
[11]王骏,王士同,邓赵红.聚类分析研究中的若干问题[J].控制与决策,2012,27(3):321-328.WANG Jun,WANG Shitong,DENG Zhaohong.Some Problems in clustering analysis[J].Control and Decision,2012,27(3):321-328.
[12]许丽利.聚类分析的算法及应用[D].长春:吉林大学,2010.