基于健康指数的电力变压器状态评估
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摘要
为提高变压器预测准确性,保证变压器可靠稳定运行,建立基于健康指数的变压器综合健康状况评估模型。该模型对变压器分层、分部件进行多参量统计分析,针对历史数据(运检数据、家族缺陷,设备基本信息、负载)和现状数据(例行试验数据)两个层面以及不同部件,建立量化指标体系。进一步提出采用统计工具SPSS(statistical product and service solutions),在研究变压器各参量之间关系的基础上,得出公共参量关联度及对健康指数的贡献值,最终利用统计方法确定量化权重及基于贡献度分析的健康指数评价模型。最后,以山东电网实际运行的变压器为例,验证了基于健康指数变压器状态评估模型的有效性,为输变电设备状态评价、检修提供科学依据。
To improve the forecasting accuracy and ensure reliable and stable operation of transformer,based onhealth index estimation model is proposed. The transformer data is divided into different levels and parts,so multi-parameter statistical analysis is carried on. The indicator system is scored and weighted by computing history data(in-spection and maintenance,family defects,basic information and loading history)and condition data(such as routinetest data). The condition parameters,which are classified on the component level,are scored and weighted,usingstatistical tools calculation. By using the statistical tools SPSS(statistical product and service solutions),multivari-ate statistical analysis is carried out. On the basis of studying the relationship between various parameters,a healthevaluation model,which is based on contribution analysis,is presented. A condition-based evaluation tool,thatquantifies power transformer degradation and clarifies the relationship between each health index,is put forward.The results are presented to verify the validity and feasibility of evaluating model and assessment algorithm. This pa-per provides a scientific method for the transmitting and transforming field.
To improve the forecasting accuracy and ensure reliable and stable operation of transformer,based onhealth index estimation model is proposed. The transformer data is divided into different levels and parts,so multi-parameter statistical analysis is carried on. The indicator system is scored and weighted by computing history data(in-spection and maintenance,family defects,basic information and loading history)and condition data(such as routinetest data). The condition parameters,which are classified on the component level,are scored and weighted,usingstatistical tools calculation. By using the statistical tools SPSS(statistical product and service solutions),multivari-ate statistical analysis is carried out. On the basis of studying the relationship between various parameters,a healthevaluation model,which is based on contribution analysis,is presented. A condition-based evaluation tool,thatquantifies power transformer degradation and clarifies the relationship between each health index,is put forward.The results are presented to verify the validity and feasibility of evaluating model and assessment algorithm. This pa-per provides a scientific method for the transmitting and transforming field.
引文
[1]LIAO Ruijin,ZHENG Hanbo,GRZYBOWSKI S,et al.An integrated decision-making model for condition assessment of power transformers using fuzzy approach and evidential reasoning[J].IEEE Transactions on Power Delivery,2011,26(2):1111-1118.
[2]DOMINELLI N,RAO A,KUNDUR P.Life extension and condition assessment:Techniques for an aging utility infrastructure[J].IEEE Transactions on Power and Energy Magazine,2006,4(3):24-35.
[3]WANG M,VANDERMAAR A J,SRIVASTAVA K D.Review of condition assessment of power transformers in service[J].IEEE Transactions on Electrical Insulation Magazine,2002,18(6):12-25.
[4]程志华,章剑光.状态检修技术及其辅助分析系统的应用[J].电网技术,2003,27(7):16-18.CHENG Zhihua,ZHANG Jianguang.Application of condition based maintenance technology and its computer aided analysis system[J].Power System Technology,2003,27(7):16-18.
[5]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.
[6]廖玉祥.一种电力变压器运行状态综合评估模型的研究[D].重庆:重庆大学,2006.LIAO Yuxiang.A study on the comprehensive evaluation model of the running state of power transformer[D].Chongqing:Chongqing University,2006.
[7]乔维德.基于模拟退火改进粒子群混合算法的变压器故障诊断[J].高压电器,2008,44(3):208-210.QIAO Weide.Transformer fault diagnosis based on SAPSOBP hybrid algorithm[J].High Voltage Apparatus,2008,44(3):208-210.
[8]SAHA T K.Review of modern diagnostic techniques for assessing insulation condition in aged transformers[J].IEEE Transactions on Dielectrics and Electrical Insulation,2003,10(5):903-917.
[9]国家电网公司.油浸式变压器(电抗器)状态评价导则[R].北京:国家电网公司,2008.State Grid.Guide for condition evaluation of oil-immersed power transformers(reactors)[R].Beijing:State Grid,2008.
[10]李喜桂,常燕,罗运柏,等.基于健康指数的变压器剩余寿命评估[J].高压电器,2012,48(12):80-85.LI Xigui,CHANG Yan,LUO Yunbai,et al.Remnant life estimation of power transformer based on health index[J].High Voltage Apparatus,2012,48(12):80-85.
[11]郭永基.中小容量电力变压器寿命评估的新方法[J].电力系统自动化,2001,25(21):38-41.GUO Yongji.New methodology for lifetime evaluation ofmedium and small sized power transformer[J].Automation of Electric Power Systems,2001,25(21):38-41.
[12]SWIFT G,MOLINSKI T S,LEHN W.A fundamental approach to transformer thermal modeling.I.theory and equivalent circuit[J].IEEE Transactions on Power Delivery,2001,16(2):171-175.
[13]周湶,徐智,廖瑞金,等.基于云理论和核向量空间模型的电力变压器套管绝缘状态评估[J].高电压技术,2013,39(5):1101-1106.ZHOU Quan,XU Zhi,LIAO Ruijin,et al.Insulation condition assessment of power transformer bushing based on cloud model and kernel vector space model[J].High Voltage Engineering,2013,39(5):1101-1106.
[14]熊浩,孙才新,张昀,等.电力变压器运行状态的灰色层次评估模型[J].电力系统自动化,2007,31(7):55-60.XIONG Hao,SUN Caixin,ZHANG Yun,et al.A hierarchical grey evaluation model for operation condition of power transformers[J].Automation of Electric Power Systems,2007,31(7):55-60.
[15]廖瑞金,郑含博,杨丽君,等.基于集对分析方法的电力变压器绝缘状态评估策略[J].电力系统自动化,2010,34(21):55-60.LIAO Ruijin,ZHENG Hanbo,YANG Lijun,et al.A power transformer insulation condition assessment method based on set pair analysis[J].Automation of Electric Power Systems,2010,34(21):55-60.
[16]张晗,常安,王奇,等.基于多源信息的变压器状态评价方案研究与应用[J].高压电器,2016,52(2):19-27.ZHANG Han,CHANG An,WANG Qi,et al.Research and application of transformer condition evaluation model based on multi-source information[J].High Voltage Apparatus,2016,52(2):19-27.
[17]范辉,高树国,王学磊,等.多指标加权分析的变压器故障油色谱诊断方法可靠性评估[J].高压电器,2016,52(6):178-182.FAN Hui,GAO Shuguo,WANG Xuelei,et al.Reliability assessment of the DGA fault diagnosis methodologies for transformers based on multi-indexes weighted analysis[J].High Voltage Apparatus,2016,52(6):178-182.
[18]张镱议,廖瑞金,杨丽君,等.基于云理论的电力变压器绝缘状态评估方法[J].电工技术学报,2012,27(5):13-20.ZHANG Yiyi,LIAO Ruijin,YANG Lijun,et al.An assessment method for insulation condition of power transformer based upon cloud model[J].Transactions of China Electrotechnical Society,2012,27(5):13-20.
[19]王钦,文福拴,刘敏,等.基于模糊集理论和层次分析法的电力市场综合评价[J].电力系统自动化,2009,33(7):32-37.WANG Qin,WEN Fushuan,LIU Min,et al.Combined useof fuzzy set theory and analytic hierarchy process for comprehensive assessment of electricity markets[J].Automation of Electric Power Systems,2009,33(7):32-37.
[20]TANG W H,SPURGEON K,WU Q H,et al.An evidential reasoning approach to transformer condition assessments[J].IEEE Transactions on Power Delivery,2004,19(4):1696-1703.
[21]廖瑞金,王谦,骆思佳,等.基于模糊综合评判的电力变压器运行状态评估模型[J].电力系统自动化,2008,32(3):70-75.LIAO Ruijin,WANG Qian,LUO Sijia,et al.Condition assessment model for power transformer in service based on fuzzy synthetic evaluation[J].Automation of Electric Power Systems,2008,32(3):70-75.
[22]巩学宾,闫明发,魏晶霞.一例变压器内部故障的油色谱分析诊断和处理[J].高压电器,2008,44(3):275-276.GONG Xuebin,YAN Mingfa,WEI Jingxia.Oil chromatogram analysis of a fault inside transformer[J].High Voltage Apparatus,2008,44(3):275-276.
[23]程锦,钟义,兰孝富.一起750 k V变压器内部故障分析与处理[J].高压电器,2016,52(2):200-204.CHENG Jin,ZHONG Yi,LAN Xiaofu.Analysis and treatment of the inner fault in a 750 k V transformer[J].High Voltage Apparatus,2016,52(2):200-204.
[2]DOMINELLI N,RAO A,KUNDUR P.Life extension and condition assessment:Techniques for an aging utility infrastructure[J].IEEE Transactions on Power and Energy Magazine,2006,4(3):24-35.
[3]WANG M,VANDERMAAR A J,SRIVASTAVA K D.Review of condition assessment of power transformers in service[J].IEEE Transactions on Electrical Insulation Magazine,2002,18(6):12-25.
[4]程志华,章剑光.状态检修技术及其辅助分析系统的应用[J].电网技术,2003,27(7):16-18.CHENG Zhihua,ZHANG Jianguang.Application of condition based maintenance technology and its computer aided analysis system[J].Power System Technology,2003,27(7):16-18.
[5]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.
[6]廖玉祥.一种电力变压器运行状态综合评估模型的研究[D].重庆:重庆大学,2006.LIAO Yuxiang.A study on the comprehensive evaluation model of the running state of power transformer[D].Chongqing:Chongqing University,2006.
[7]乔维德.基于模拟退火改进粒子群混合算法的变压器故障诊断[J].高压电器,2008,44(3):208-210.QIAO Weide.Transformer fault diagnosis based on SAPSOBP hybrid algorithm[J].High Voltage Apparatus,2008,44(3):208-210.
[8]SAHA T K.Review of modern diagnostic techniques for assessing insulation condition in aged transformers[J].IEEE Transactions on Dielectrics and Electrical Insulation,2003,10(5):903-917.
[9]国家电网公司.油浸式变压器(电抗器)状态评价导则[R].北京:国家电网公司,2008.State Grid.Guide for condition evaluation of oil-immersed power transformers(reactors)[R].Beijing:State Grid,2008.
[10]李喜桂,常燕,罗运柏,等.基于健康指数的变压器剩余寿命评估[J].高压电器,2012,48(12):80-85.LI Xigui,CHANG Yan,LUO Yunbai,et al.Remnant life estimation of power transformer based on health index[J].High Voltage Apparatus,2012,48(12):80-85.
[11]郭永基.中小容量电力变压器寿命评估的新方法[J].电力系统自动化,2001,25(21):38-41.GUO Yongji.New methodology for lifetime evaluation ofmedium and small sized power transformer[J].Automation of Electric Power Systems,2001,25(21):38-41.
[12]SWIFT G,MOLINSKI T S,LEHN W.A fundamental approach to transformer thermal modeling.I.theory and equivalent circuit[J].IEEE Transactions on Power Delivery,2001,16(2):171-175.
[13]周湶,徐智,廖瑞金,等.基于云理论和核向量空间模型的电力变压器套管绝缘状态评估[J].高电压技术,2013,39(5):1101-1106.ZHOU Quan,XU Zhi,LIAO Ruijin,et al.Insulation condition assessment of power transformer bushing based on cloud model and kernel vector space model[J].High Voltage Engineering,2013,39(5):1101-1106.
[14]熊浩,孙才新,张昀,等.电力变压器运行状态的灰色层次评估模型[J].电力系统自动化,2007,31(7):55-60.XIONG Hao,SUN Caixin,ZHANG Yun,et al.A hierarchical grey evaluation model for operation condition of power transformers[J].Automation of Electric Power Systems,2007,31(7):55-60.
[15]廖瑞金,郑含博,杨丽君,等.基于集对分析方法的电力变压器绝缘状态评估策略[J].电力系统自动化,2010,34(21):55-60.LIAO Ruijin,ZHENG Hanbo,YANG Lijun,et al.A power transformer insulation condition assessment method based on set pair analysis[J].Automation of Electric Power Systems,2010,34(21):55-60.
[16]张晗,常安,王奇,等.基于多源信息的变压器状态评价方案研究与应用[J].高压电器,2016,52(2):19-27.ZHANG Han,CHANG An,WANG Qi,et al.Research and application of transformer condition evaluation model based on multi-source information[J].High Voltage Apparatus,2016,52(2):19-27.
[17]范辉,高树国,王学磊,等.多指标加权分析的变压器故障油色谱诊断方法可靠性评估[J].高压电器,2016,52(6):178-182.FAN Hui,GAO Shuguo,WANG Xuelei,et al.Reliability assessment of the DGA fault diagnosis methodologies for transformers based on multi-indexes weighted analysis[J].High Voltage Apparatus,2016,52(6):178-182.
[18]张镱议,廖瑞金,杨丽君,等.基于云理论的电力变压器绝缘状态评估方法[J].电工技术学报,2012,27(5):13-20.ZHANG Yiyi,LIAO Ruijin,YANG Lijun,et al.An assessment method for insulation condition of power transformer based upon cloud model[J].Transactions of China Electrotechnical Society,2012,27(5):13-20.
[19]王钦,文福拴,刘敏,等.基于模糊集理论和层次分析法的电力市场综合评价[J].电力系统自动化,2009,33(7):32-37.WANG Qin,WEN Fushuan,LIU Min,et al.Combined useof fuzzy set theory and analytic hierarchy process for comprehensive assessment of electricity markets[J].Automation of Electric Power Systems,2009,33(7):32-37.
[20]TANG W H,SPURGEON K,WU Q H,et al.An evidential reasoning approach to transformer condition assessments[J].IEEE Transactions on Power Delivery,2004,19(4):1696-1703.
[21]廖瑞金,王谦,骆思佳,等.基于模糊综合评判的电力变压器运行状态评估模型[J].电力系统自动化,2008,32(3):70-75.LIAO Ruijin,WANG Qian,LUO Sijia,et al.Condition assessment model for power transformer in service based on fuzzy synthetic evaluation[J].Automation of Electric Power Systems,2008,32(3):70-75.
[22]巩学宾,闫明发,魏晶霞.一例变压器内部故障的油色谱分析诊断和处理[J].高压电器,2008,44(3):275-276.GONG Xuebin,YAN Mingfa,WEI Jingxia.Oil chromatogram analysis of a fault inside transformer[J].High Voltage Apparatus,2008,44(3):275-276.
[23]程锦,钟义,兰孝富.一起750 k V变压器内部故障分析与处理[J].高压电器,2016,52(2):200-204.CHENG Jin,ZHONG Yi,LAN Xiaofu.Analysis and treatment of the inner fault in a 750 k V transformer[J].High Voltage Apparatus,2016,52(2):200-204.