基于样本集的变压器油纸绝缘状态区间灰靶分类及老化诊断
|
摘要
为解决目前变压器油纸绝缘状态综合评估存在的模糊与不确定问题,提出了一种在无标准故障模型情况下对油纸绝缘状态评估分级的方法。首先,摒弃了传统的靶心度计算法,引入权重分配系数wk,并将各项指标的权重分配转化为基于离差平方和的目标函数最优化;其次,采用基于样本集的区间灰靶分类方法,计算获得了油纸绝缘系统状态等级划分的环形灰靶分级表;最后,通过具体实例验证了该方法的可行性。结果表明:所提出算法的评估结果与变压器油纸绝缘的实际状态具有一致性,且该方法的准确度较单一特征量诊断方法有所提高。该研究可为油纸绝缘状态综合诊断权重系数的合理分配及状态等级区间的计算提供有益参考。
To solve the problem of fuzzy and uncertainty in evaluation of transformer oil-paper insulation condition, we proposed a method for evaluating the state level of oil-paper insulation based on a non-standard model. Firstly, the traditional method of approaching degree was abandoned, and the weight allocation coefficient wk was introduced to change the problem of weight distribution on each index into the optimization of objective function based on the sum of squares. Secondly, the grey target classification method based on sample set was adopted, and a circular grey target classification table for state classification of oil-paper insulation system was analyzed. Finally, a specific example was given to validate feasibility of this method. The results show that the evaluation results of the proposed algorithm and the actual operation state of transformers have consistency. This study can provide a useful reference for rational allocation of weight coefficients and calculation of grade intervals in condition assessment on oil-paper insulation.
To solve the problem of fuzzy and uncertainty in evaluation of transformer oil-paper insulation condition, we proposed a method for evaluating the state level of oil-paper insulation based on a non-standard model. Firstly, the traditional method of approaching degree was abandoned, and the weight allocation coefficient wk was introduced to change the problem of weight distribution on each index into the optimization of objective function based on the sum of squares. Secondly, the grey target classification method based on sample set was adopted, and a circular grey target classification table for state classification of oil-paper insulation system was analyzed. Finally, a specific example was given to validate feasibility of this method. The results show that the evaluation results of the proposed algorithm and the actual operation state of transformers have consistency. This study can provide a useful reference for rational allocation of weight coefficients and calculation of grade intervals in condition assessment on oil-paper insulation.
引文
[1]陈伟根,谢波,龙震泽,等.基于小波包能量熵的油纸绝缘气隙放电阶段识别[J].中国电机工程学报,2016,53(2):563-569.CHEN Weigen,XIE Bo,LONG Zhenze,et al.Stage identification in air-gap discharge of oil-impregnated paper insulation based on wavelet packet energy entropy[J].Proceedings of the CSEE,2016,53(2):563-569.表3变压器应用各个单一特征量的诊断结果Table 3 Diagnose results of transformer using each single characteristic quantity单一特征量诊断结果单一特征量诊断结果Urmax绝缘老化严重tcdom绝缘老化严重Sr绝缘老化严重τmax绝缘状态一般Rg绝缘状态一般N条绝缘老化严重Wrmax绝缘状态一般Q/C绝缘老化严重
[2]LELEKAKIS N,GUO W Y,MARTIN D,et al.A field study of aging in paper-oil insulation systems[J].Electrical Insulation Magazine,2012,28(1):12-19.
[3]王晓剑,吴广宁,李先浪,等.酸值对变压器油纸绝缘系统回复电压参数影响规律研究[J].电力自动化设备,2013,33(12):133-139.WANG Xiaojian,WU Guangning,LI Xianlang,et al.Influence of acid value on recovery voltage parameters of transformer oil-paper insulation system[J].Electric Power Automation Equipment,2013,33(12):133-139.
[4]贺德华,蔡金锭,蔡嘉.油纸绝缘等效电路参数辨识及老化状态评估[J].高电压技术,2017,43(6):1988-1994.HE Dehua,CAI Jinding,CAI jia.Method for parameter identification of equivalent circuit of oil-paper insulation and its research[J].High Voltage Engineering,2017,43(6):1988-1994.
[5]邹阳,蔡金锭.油纸绝缘变压器时域极化谱特性实验分析[J].电工技术学报,2015,30(12):307-313.ZOU Yang,CAI Jinding.Experimental analysis on time-domain polarization spectrum of oil-paper insulation transformer[J].Transactions of China Electrotechnical Society,2015,30(12):307-313.
[6]祝顺才,蔡金锭.基于模糊-灰色聚类的油纸绝缘状态综合诊断[J].仪器仪表学报,2017,38(3):718-725.ZHU Shuncai,CAI Jinding.Comprehensive diagnosis of oil-paper insulation status based on fuzzy gray clustering[J].Chinese Journal of Scientific Instrument,2017,38(3):718-725.
[7]孙长海,粘凯昕,吴彦,等.基于时域介电法的油纸绝缘复合电老化性能[J].高电压技术,2016,42(9):2988-2994.SUN Changhai,ZHAN Kaixin,WU Yan,et al.Electrical aging property of oil impregnated paper under AC-DC combined voltages based on dielectric response methods[J].High Voltage Engineering,2016,42(9):2988-2994.
[8]董明,王丽,吴雪舟,等.油纸绝缘介电响应检测技术研究现状与发展[J].高电压技术,2016,42(4):1179-1189.DONG Ming,WANG Li,WU Xuezhou,et al.Status and progress study of dielectric response technology for oil-paper insulation[J].High Voltage Engineering,2016,42(4):1179-1189.
[9]郑蕊蕊,赵继印,吴宝春,等.基于加权灰靶理论的电力变压器绝缘状态分级评估方法[J].电工技术学报,2008,23(8):60-66.ZHENG Ruirui,ZHAO Jiyin,WU Baochun,et al.Method for insulative condition classification evaluation of power transformer based on weight coefficient grey target theory[J].Transactions of China Electrotechnical Society,2008,23(8):60-66.
[10]GAO T,ZHAO X M,CHEN T,et al.Face description based on adaptive local weighted Gabor comprehensive histogram feature[J].Multimedia Tools&Applications,2016,76(10):1-24.
[11]HU Z,LI Q,ZHANG Q,et al.Unsupervised simplification of image hierarchies via evolution analysis in scale-sets framework[J].IEEE Transactions on Image Processing,2017,26(5):2394-2407.
[12]李以策,郭江,张珂斐,等.基于改进灰色预测与熵权融合体系的变压器寿命预测研究[J].电测与仪表,2017,54(9):58-65.LI Yice,GUO Jiang,ZHANG Kefei,et al.Transformer life prediction model based on the improved grey forecasting and entropy weight fusion system[J].Electrical Measurement&Instrumentation,2017,54(9):58-65.
[13]舒持恺,杨侃.基于组合赋权的湖泊健康评价物元分析模型[J].水资源与水工程学报,2017,28(2):40-46.SHU Chikai,YAN Kan.Matter element analysis model of lake health evaluation based on the combination weighting method[J].Journal of Water Resources and Water Engineering,2017,28(2):40-46.
[14]YAN Z Z,CHEN E C.Higher-dimensional multifractal analysis of local entropy[J].Journal of Systems Science&Mathematical Sciences,2008,28(28):40-50.
[15]梁燕华,郭鹏,朱煜明,等.基于区间数的多时点多属性灰靶决策模型[J].控制与决策,2012,27(10):1527-1530,1536.LIANG Yanhua,GUO Peng,ZHU Yuming,et al.Multi-period and multi-criteria decision making model of grey target based on interval number[J].Control and Decision,2012,27(10):1527-1530,1536.
[16]王大澳,菅利荣,刘思峰,等.基于Choquet积分的多属性灰靶群决策方法[J].控制与决策,2017,32(7):1286-1292.WANG Daao,JIAN Lirong,LIU Sifeng,et al.Approach for multi-attribute grey target group decision-making based on Choquet integral[J].Control and Decision,2017,32(7):1286-1292.
[17]赵振东.多指标混合型灰靶决策在汽车悬架选型中的应用[J].机械设计与制造,2016,11(11):270-272.ZHAO Zhendong.Application of multi-attribute of mixed-type grey target theory in automobile suspension model selection[J].Machinery Design&Manufacture,2016,11(11):270-272.
[18]蔡金锭,林智勇,蔡嘉.基于等效电路参数的变压器油中糠醛含量判别法研究[J].仪器仪表学报,2016,37(3):706-713.CAI Jinding,LIN Zhiyong,CAI Jia.Study on the discrimination method of furfural content in transformer oil based on equivalent circuit parameters[J].Chinese Journal of Scientific Instrument,2016,37(3):706-713.
[19]黄云程,蔡金锭.应用去极化能量谱评估变压器绝缘老化受潮状态[J].电工电能新技术,2016,35(1):53-59.HUANG Yuncheng,CAI Jinding.Diagnosis of insulation condition of transformers by using depolarization energy spectrum[J].Advanced Technology of Electrical Engineering and Energy,2016,35(1):53-59.
[20]吴广宁,宋臻杰,杨飞豹,等.基于时域介电谱和去极化电量的变压器油纸绝缘老化特征量研究[J].高电压技术,2017,43(1):195-202.WU Guangning,SONG Zhenjie,YANG Feibao,et al.Study on aging characteristics of transformer oil-paper insulation based on the time domain dielectric spectroscopy and depolarization charge quantity[J].High Voltage Engineering,2017,43(1):195-202.
[2]LELEKAKIS N,GUO W Y,MARTIN D,et al.A field study of aging in paper-oil insulation systems[J].Electrical Insulation Magazine,2012,28(1):12-19.
[3]王晓剑,吴广宁,李先浪,等.酸值对变压器油纸绝缘系统回复电压参数影响规律研究[J].电力自动化设备,2013,33(12):133-139.WANG Xiaojian,WU Guangning,LI Xianlang,et al.Influence of acid value on recovery voltage parameters of transformer oil-paper insulation system[J].Electric Power Automation Equipment,2013,33(12):133-139.
[4]贺德华,蔡金锭,蔡嘉.油纸绝缘等效电路参数辨识及老化状态评估[J].高电压技术,2017,43(6):1988-1994.HE Dehua,CAI Jinding,CAI jia.Method for parameter identification of equivalent circuit of oil-paper insulation and its research[J].High Voltage Engineering,2017,43(6):1988-1994.
[5]邹阳,蔡金锭.油纸绝缘变压器时域极化谱特性实验分析[J].电工技术学报,2015,30(12):307-313.ZOU Yang,CAI Jinding.Experimental analysis on time-domain polarization spectrum of oil-paper insulation transformer[J].Transactions of China Electrotechnical Society,2015,30(12):307-313.
[6]祝顺才,蔡金锭.基于模糊-灰色聚类的油纸绝缘状态综合诊断[J].仪器仪表学报,2017,38(3):718-725.ZHU Shuncai,CAI Jinding.Comprehensive diagnosis of oil-paper insulation status based on fuzzy gray clustering[J].Chinese Journal of Scientific Instrument,2017,38(3):718-725.
[7]孙长海,粘凯昕,吴彦,等.基于时域介电法的油纸绝缘复合电老化性能[J].高电压技术,2016,42(9):2988-2994.SUN Changhai,ZHAN Kaixin,WU Yan,et al.Electrical aging property of oil impregnated paper under AC-DC combined voltages based on dielectric response methods[J].High Voltage Engineering,2016,42(9):2988-2994.
[8]董明,王丽,吴雪舟,等.油纸绝缘介电响应检测技术研究现状与发展[J].高电压技术,2016,42(4):1179-1189.DONG Ming,WANG Li,WU Xuezhou,et al.Status and progress study of dielectric response technology for oil-paper insulation[J].High Voltage Engineering,2016,42(4):1179-1189.
[9]郑蕊蕊,赵继印,吴宝春,等.基于加权灰靶理论的电力变压器绝缘状态分级评估方法[J].电工技术学报,2008,23(8):60-66.ZHENG Ruirui,ZHAO Jiyin,WU Baochun,et al.Method for insulative condition classification evaluation of power transformer based on weight coefficient grey target theory[J].Transactions of China Electrotechnical Society,2008,23(8):60-66.
[10]GAO T,ZHAO X M,CHEN T,et al.Face description based on adaptive local weighted Gabor comprehensive histogram feature[J].Multimedia Tools&Applications,2016,76(10):1-24.
[11]HU Z,LI Q,ZHANG Q,et al.Unsupervised simplification of image hierarchies via evolution analysis in scale-sets framework[J].IEEE Transactions on Image Processing,2017,26(5):2394-2407.
[12]李以策,郭江,张珂斐,等.基于改进灰色预测与熵权融合体系的变压器寿命预测研究[J].电测与仪表,2017,54(9):58-65.LI Yice,GUO Jiang,ZHANG Kefei,et al.Transformer life prediction model based on the improved grey forecasting and entropy weight fusion system[J].Electrical Measurement&Instrumentation,2017,54(9):58-65.
[13]舒持恺,杨侃.基于组合赋权的湖泊健康评价物元分析模型[J].水资源与水工程学报,2017,28(2):40-46.SHU Chikai,YAN Kan.Matter element analysis model of lake health evaluation based on the combination weighting method[J].Journal of Water Resources and Water Engineering,2017,28(2):40-46.
[14]YAN Z Z,CHEN E C.Higher-dimensional multifractal analysis of local entropy[J].Journal of Systems Science&Mathematical Sciences,2008,28(28):40-50.
[15]梁燕华,郭鹏,朱煜明,等.基于区间数的多时点多属性灰靶决策模型[J].控制与决策,2012,27(10):1527-1530,1536.LIANG Yanhua,GUO Peng,ZHU Yuming,et al.Multi-period and multi-criteria decision making model of grey target based on interval number[J].Control and Decision,2012,27(10):1527-1530,1536.
[16]王大澳,菅利荣,刘思峰,等.基于Choquet积分的多属性灰靶群决策方法[J].控制与决策,2017,32(7):1286-1292.WANG Daao,JIAN Lirong,LIU Sifeng,et al.Approach for multi-attribute grey target group decision-making based on Choquet integral[J].Control and Decision,2017,32(7):1286-1292.
[17]赵振东.多指标混合型灰靶决策在汽车悬架选型中的应用[J].机械设计与制造,2016,11(11):270-272.ZHAO Zhendong.Application of multi-attribute of mixed-type grey target theory in automobile suspension model selection[J].Machinery Design&Manufacture,2016,11(11):270-272.
[18]蔡金锭,林智勇,蔡嘉.基于等效电路参数的变压器油中糠醛含量判别法研究[J].仪器仪表学报,2016,37(3):706-713.CAI Jinding,LIN Zhiyong,CAI Jia.Study on the discrimination method of furfural content in transformer oil based on equivalent circuit parameters[J].Chinese Journal of Scientific Instrument,2016,37(3):706-713.
[19]黄云程,蔡金锭.应用去极化能量谱评估变压器绝缘老化受潮状态[J].电工电能新技术,2016,35(1):53-59.HUANG Yuncheng,CAI Jinding.Diagnosis of insulation condition of transformers by using depolarization energy spectrum[J].Advanced Technology of Electrical Engineering and Energy,2016,35(1):53-59.
[20]吴广宁,宋臻杰,杨飞豹,等.基于时域介电谱和去极化电量的变压器油纸绝缘老化特征量研究[J].高电压技术,2017,43(1):195-202.WU Guangning,SONG Zhenjie,YANG Feibao,et al.Study on aging characteristics of transformer oil-paper insulation based on the time domain dielectric spectroscopy and depolarization charge quantity[J].High Voltage Engineering,2017,43(1):195-202.