戴铭;何正友;赵静;贾勇;

• 1:西南交通大学电气工程学院

摘要(Abstract)：

提出一种小波变换和支持向量机(support vector machine,SVM)相结合的配电网电容器投切扰动源定位方法。该算法使用小波变换对电容器投切产生的暂态扰动信号进行分析,提取扰动能量和扰动持续时间2个特征量作为SVM分类器的输入,以识别扰动,实现投切电容器的自动定位。基于PSCAD/EMTDC仿真软件建立典型10kV配网模型,并选取3个不同位置的电容器进行投切操作,仿真电容器投切产生的暂态扰动。以改变电容器投入时间得到的不同投切事件作为算法样本进行了仿真分析。结果表明,所提算法定位电容器投切扰动源的准确率可达99.17%。

关键词(KeyWords)： 电能质量;电容器投切扰动源;小波变换;支持向量机

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(50877068);; 教育部优秀新世纪人才支持计划项目(NCET-06-0799)~~

作者(Author): 戴铭;何正友;赵静;贾勇;

Email:

DOI:

参考文献(References)：

• [1]赵静,何正友,钱清泉.利用广义形态滤波与差分熵的电能质量扰动检测[J].中国电机工程学报,2009,29(7):121-127.Zhao Jing,He Zhengyou,Qian Qingquan.Detection of power quality disturbances utilizing generalized morphological filter and difference-entropy[J].Proceedings of the CSEE,2009,29(7):121-127(in Chinese).
• [2]王丽霞,何正友,赵静.基于数学形态学的电能质量扰动检测和定位[J].电网技术,2008,32(10):63-68.Wang Lixia,He Zhengyou,Zhao Jing.Detection and location of power quality disturbance based on mathematical morphology[J].Power System Technology,2008,32(10):63-68(in Chinese).
• [3]占勇,程浩忠,丁屹峰,等.基于S变换的电能质量扰动支持向量机分类识别[J].中国电机工程学报,2005,25(4):51-56.Zhan Yong,Cheng Haozhong,Ding Yifeng,et al.S-transform-based classification of power quality disturbance signals by support vector machines[J].Proceedings of the CSEE,2005,25(4):51-56(in Chinese).
• [4]薛蕙,杨仁刚.基于小波包除噪的电能质量扰动检测方法[J].中国电机工程学报,2004,24(3):85-90.Xue Hui,Yang Rengang.Power quality disturbance detection method using wavelet package transform based de-noising scheme[J].Proceedings of the CSEE,2004,24(3):85-90(in Chinese).
• [5]Sabin D D,Grebe T E,Brooks D L,et al.Rules-based algorithm for detecting transient overvoltages due to capacitor switching and statistical analysis of capacitor switching in distribution systems[C].IEEE Transmission Distribution Conference,1999:630-635.
• [6]Santoso S.On determining the relative location of switched capacitor banks[J].IEEE Transactions on Power Delivery,2007,22(2):1108-1116.
• [7]王继东,王成山.基于小波变换的电容器投切扰动源定位[J].电力自动化设备,2004,24(5):20-24.Wang Jidong,Wang Chengshan.Capacitor switching disturbance source locating based on wavelet transform[J].Electric Power Automation Equipment,2004,24(5):20-24(in Chinese).
• [8]张凯,关根志,张海龙.用小波变换和瞬时功率定位电能质量扰动源[J].高电压技术,2008,34(3):573-577.Zhang Kai,Guan Genzhi,Zhang Hailong.Location for disturbance source based on wavelet transform and instantaneous power[J].High Voltage Engineering,2008,34(3):573-577(in Chinese).
• [9]Sochuliakova D,Niebur D,Nwankpa C O,et al.Identification of capacitor position in a radial system[J].IEEE Transactions on Power Delivery,1999,14(4):1368-1373.
• [10]Chang G W,Shih M H,Chu S Y,et al.An efficient approach for tracking transients generated by utility shunt capacitor switching[J].IEEE Transactions on Power Delivery,2006,21(1):510-512.
• [11]Kim J,Grady W M,Arapostathis A,et al.A time domain procedure for locating switched capacitors in power distribution systems[J].IEEE Transactions on Power Delivery,2002,17(4):1044-1049.
• [12]Kim J,Grady W M,Arapostathis A,et al.A frequency domain procedure for locating switched capacitors in power distribution systems[C].IEEE Power Engineering Society Summer Meeting,2000:945-950.
• [13]Abu-Elanien Ahmed E B,Salama M M A.A wavelet-ANN technique for locating switched capacitors in distribution systems[J].IEEE Transactions on Power Delivery,2009,24(1):400-409.
• [14]杨健维,罗国敏,何正友.基于小波熵权和支持向量机的高压输电线路故障分类方法[J].电网技术,2007,31(23):22-26.Yang Jianwei,Luo Guomin,He Zhengyou.High voltage transmission line fault classification based on entropy weight of wavelet and support vector machines[J].Power System Technology,2007,31(23):22-26(in Chinese).
• [15]薛蕙,杨仁刚,罗红,等.利用小波变换分析配电网电能质量扰动[J].电网技术,2003,27(7):60-65.Xue Hui,Yang Rengang,Luo Hong,et al.Analysis of power quality disturbance in distribution network by wavelet transform[J].Power System Technology,2003,27(7):60-65(in Chinese).
• [16]何正友,蔡玉梅,王志兵,等.电力暂态信号小波分析的后处理方法研究[J].电网技术,2005,29(21):46-51.He Zhengyou,Cai Yumei,Wang Zhibing,et al.A study on post-analysis methods of wavelet-transformed power system transient signals[J].Power System Technology,2005,29(21):46-51(in Chinese).
• [17]薛慧,杨仁刚,郭永芳.利用复值小波检测轻微的电力系统扰动[J].电网技术,2004,28(17):24-27.Xue Hui,Yang Rengang,Guo Yongfang.Detection of minute disturbance by complex wavelet transform[J].Power System Technology,2004,28(17):24-27(in Chinese).
• [18]耿云玲,王群,何怡刚.基于复数小波相位信息的电能质量扰动的检测、定位与分类[J].电工技术学报,2006,21(8):112-116.Geng Yunling,Wang Qun,He Yigang.Detection,location and classification of power quality disturbances based on phase of complex wavelet[J].Transactions of China Electrotechnical Society,2006,21(8):112-116(in Chinese).
• [19]陆波,尉询楷,毕笃彦.支持向量机在分类中的应用[J].中国图象图形学报,2005,10(8):29-35.Lu Bo,Wei Xunkai,Bi Duyan.Applications of support vector machines in classification[J].Journal of Image and Graphics,2005,10(8):29-35(in Chinese).