基于变权重理论和融合实时信息配电开关柜的状态评价
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摘要
针对当前开关柜状态评价的信息动态性差的问题,提出了一种基于变权重理论和多源实时信息融合的状态评价模型。首先,选取开关柜的超声波值、暂态地电波(TEV)值、红外测温值、真空度、绝缘电阻和开关柜实时信息作为评价的状态量,以判断设备的性能状态;然后,在常权重、开关柜短板效应、设备运行环境和人为因素所带来状态量变化的基础上,引入基于变权重理论,构建了开关柜状态量的权重计算模型,以实时调整设备权重;最后,基于云模型,计算设备状态量的隶属度矩阵,并采用加权平均算子层层融合数据,定义开关柜状态评价模型。实际算例表明,考虑设备实时信息的多元数据融合更符合设备的运行情况,为设备的差异化运维与检测提供理论依据。
Aiming at the problem of poor dynamic state for switch cabinet state evaluation,a state evaluation model of distribution switchgear based on variable weight theory and multiple-source real-time information fusion is proposed. Firstly,the ultrasonic switch cabinet,transient wave( TEV),infrared temperature value,vacuum degree,insulation resistance and switchgear real-time information were selected as the state evaluation parameters,so as to determine the device performance. With the switch cabinet state changing caused by constant weight,short board effect,switchgear equipment operating environment and human factors,the weight calculation model of the switchgear state was constructed based on the variable weight theory to adjust the weight of the equipment in real time.Finally,based on the model,the membership matrix of device state was computed,and the weighted average operator layers were used for data fusion,thusstate evaluation model of switch cabinet was defined. A practical example shows that the multivariate data fusion considering real-time information is more suitable for the operation of the device,providing a theoretical basis for the differential operation and maintenance of the equipment.
Aiming at the problem of poor dynamic state for switch cabinet state evaluation,a state evaluation model of distribution switchgear based on variable weight theory and multiple-source real-time information fusion is proposed. Firstly,the ultrasonic switch cabinet,transient wave( TEV),infrared temperature value,vacuum degree,insulation resistance and switchgear real-time information were selected as the state evaluation parameters,so as to determine the device performance. With the switch cabinet state changing caused by constant weight,short board effect,switchgear equipment operating environment and human factors,the weight calculation model of the switchgear state was constructed based on the variable weight theory to adjust the weight of the equipment in real time.Finally,based on the model,the membership matrix of device state was computed,and the weighted average operator layers were used for data fusion,thusstate evaluation model of switch cabinet was defined. A practical example shows that the multivariate data fusion considering real-time information is more suitable for the operation of the device,providing a theoretical basis for the differential operation and maintenance of the equipment.
引文
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[16]KHALEGHI B,KHAMIS A,KARRAY F O,et al.Multisensor data fusion:A review of the state-of-the-art[J].Information Fusion,2013,14(1):28-44.
[2]张勇.变电站高压电气设备在线绝缘监测系统的研究[D].济南:山东大学,2015:22-27.ZHANG Y.Research on on-line insulation monitoring system for substation high voltage electrical equipment[D].Jinan:Shandong University,2015:22-27.
[3]蔡骥然,郑永康,周振宇,等.智能变电站二次设备状态监测研究综述[J].电力系统保护与控制,2016,44(6):148-154.CAI J R,ZHENG Y K,ZHOU ZH Y,et al.Review on condition monitoring of two equipment in Smart Substation[J].Journal of Power System Protection and Control,2016,44(6):148-154.
[4]杨虹,张来福,姜敏,等.输变电设备在线监测及诊断技术的研究[J].现代电子技术,2017,40(9):163-165.YANG H,ZHANG L F,JIANG M,et al.Research on online monitoring and diagnosis technology of power transmission and transformation equipment[J].Modern Electronics Technique,2017,40(9):163-165.
[5]KORNHUBER S,JANI K,BOLTZE M,et al.Partial discharge(PD)detection on medium voltage switchgears using non-invasive sensing methods[C].International Conference on Condition Monitoring and Diagnosis,IEEE,2013:392-395.
[6]LIN X,QI H,TENG Y,et al.Evaluation method of high-voltage circuit breaker running state based on matter-element theory and AHP[C].International Conference on Product Service and Entertainment,IEEE,2010:1-4.
[7]赵虎.高压SF6断路器状态评估方法研究[D].成都:西南交通大学,2013:31-46.ZHAO H.Research on state evaluation method of high voltage SF6 circuit breaker[D].Chengdu:Southwest Jiaotong University,2013:31-46.
[8]SHI S,KE W,LI C,et al.Power transformer status evaluation and warning based on fuzzy comprehensive evaluation and Bayes discrimination[J].Electric Power Automation Equipment,2016,41(3):31-40.
[9]CHEN P,SONG X,CHEN Y,et al.Fuzzy comprehensive evaluation on the operation conditions of high voltage circuit breaker[J].High Voltage Apparatus,2016,45(12):3109-3117.
[10]陈伟根,魏延芹,廖瑞金.高压断路器运行状态的变权模糊综合评判方法[J].高压电器,2009,45(3):73-77.CHEN W G,WEI Y Q,LIAO R J.Variable weight fuzzy comprehensive evaluation method for operation condition of high voltage circuit breaker[J].High Voltage Apparatus,2009,45(3):73-77.
[11]DEHGHANIAN P,WANG Y,GURRALA G,et al.Flexible implementation of power system corrective topology control[J].Electric Power Systems Research,2015,28(1):79-89.
[12]熊俊,王勇,黄慧红,等.环网柜局部放电带电检测技术分析与应用:以广州供电局为例[J].现代电力,2010,27(5):25-29.XIONG J,WANG Y,HUANG H H,et al.Analysis of on-line PD detection technology on switchgears and its application to Guangzhou distribution system[J].Modern Electronic Power,2010,27(5):25-29.
[13]王丹丹.室内10 k V真空开关柜安全运行状态评估策略的研究[D].郑州:河南理工大学,2011.WANG D D.Research on safety assessment of indoor10 k V vacuum switchgear[D].Zhengzhou:Henan Polytechnic University,2011.
[14]谢静,束洪春,王科,等.基于突变级数法的高压开关柜状态评价[J].高电压技术,2014,40(8):2372-2380.XIE J,SHU H CH,WANG K,et al.State evaluation algorithm based on catastrophe progression method of high voltage switchgears[J].High Voltage Engineering,2014,40(8):2372-2380.
[15]谢静,束洪春,王科,等.基于模糊分层理论的高压开关柜状态评估算法[J].高电压技术,2014,40(10):3186-3192.XIE J,SHU H CH,WANG K,et al.State evaluation basedon AHP fuzzy theory of high voltage switchgears[J].High Voltage Engineering,2014,40(10):3186-3192.
[16]KHALEGHI B,KHAMIS A,KARRAY F O,et al.Multisensor data fusion:A review of the state-of-the-art[J].Information Fusion,2013,14(1):28-44.