基于Seebeck效应的配电变压器绕组材质无损鉴别装置及测试分析
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摘要
基于配电变压器绕组回路Seebeck效应,研发绕组材质鉴别装置并进行测试分析。结合实际情况分析了干式变压器绕组回路Seebeck效应。根据实际回路温度分布及绕组材料特性,对铜、铝绕组回路的热电势进行理论计算,得出了绕组材质判断阈值。基于理论研究成果研发变压器绕组材质鉴别装置,对多台配电变压器进行测试分析。测试结果证明该绕组材质鉴别装置能有效鉴别铜、铝绕组材质。
Based on the Seebeck effect in winding circuit of distribution transformer,the winding material identification equipment is developed and tested. The Seebeck effect of winding circuit of dry-type transformer is analyzed based on the actual situation. According to the temperature distribution of actual winding circuit and the characteristics of winding material,the theoretical thermoelectric potential of copper and aluminum winding circuits are calculated to obtain the identification threshold. Based on the theoretical results,a transformer winding material identification equipment is developed,and multiple distribution transformers are tested and analyzed. The test results show that the developed winding material identification equipment can effectively identify copper and aluminum winding materials.
Based on the Seebeck effect in winding circuit of distribution transformer,the winding material identification equipment is developed and tested. The Seebeck effect of winding circuit of dry-type transformer is analyzed based on the actual situation. According to the temperature distribution of actual winding circuit and the characteristics of winding material,the theoretical thermoelectric potential of copper and aluminum winding circuits are calculated to obtain the identification threshold. Based on the theoretical results,a transformer winding material identification equipment is developed,and multiple distribution transformers are tested and analyzed. The test results show that the developed winding material identification equipment can effectively identify copper and aluminum winding materials.
引文
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[15]ROWE D M. General principles and basic considerations[M]. Boca Raton,USA:CRC Press,2005:1-14.
[16]陈伟根,苏小平,孙才新,等.基于有限体积法的油浸式变压器绕组温度分布计算[J].电力自动化设备,2011,31(6):23-27.CHEN Weigen,SU Xiaoping,SUN Caixin,et al. Temperature distribution calculation based on FVM for oil-immersed power transformer windings[J]. Electric Power Automation Equipment,2011,31(6):23-27.
[2]孙定华,李顺利.论铝线变压器的特点及其他[J].变压器,2015,52(1):15-19.SUN Dinghua,LI Shunli. Discussion on the characteristics of aluminum transformer and others[J]. Transformer,2015,52(1):15-19.
[3]OLIVARES J C,LEON F D. Selection of copper against aluminum windings for distribution transformers[J]. IET Electric Power Applications,2010,4(6):474-485.
[4]陈金猛,潘斌,李志新,等.配电变压器绕组材质辨识研究现状及展望[J].变压器,2016,53(11):16-19.CHEN Jinmeng,PAN Bin,LI Zhixin,et al. Status and prospect of winding material identification research of distribution transformer[J]. Transformer,2016,53(11):16-19.
[5]张仁奇,李小军,蒋欣,等.配电变压器线圈用材的X射线鉴别方法[J].无损检测,2015,37(1):49-55.ZHANG Renqi,LI Xiaojun,JIANG Xin,et al. An X-ray radiographic comparison and identification method for coil materials in distribution transformers[J]. Nondestructive Testing,2015,37(1):49-55.
[6]孙云东,董俊国,张明博,等.基于改进自然降温法的变压器绕组材质无损检测方法[J].电力系统及其自动化学报,2016,28(1):129-133.SUN Yundong,DONG Junguo,ZHANG Mingbo,et al. Nondestructive detection method of transformer winding material based on improved natural cooling method[J]. Proceedings of the CSU-EPSA,2016,28(1):129-133.
[7]何良,刘隆晨,毛强.一种用于配电变压器绕组材质诊断的新方法[J].四川电力技术,2015,38(6):47-50.HE Liang,LIU Longchen,MAO Qiang. A new method for the diagnosis of power distribution transformer windings[J]. Sichuan Electric Power Technology,2015,38(6):47-50.
[8]杜林,余欣玺,周年荣,等.基于热电效应的变压器绕组材质鉴别方法[J].高电压技术,2016,42(7):2275-2280.DU Lin,YU Xinxi,ZHOU Nianrong,et al. Transformer winding material identification method based on thermoelectric effect[J]. High Voltage Engineering,2016,42(7):2275-2280.
[9]晏维,邱国跃,袁旭峰.半导体温差发电技术应用及研究综述[J].电源技术,2016,40(8):1737-1740.YAN Wei,QIU Guoyue,YUAN Xufeng. Application and research of semiconductor thermoelectric power generation technology[J]. Chinese Journal of Power Sources,2016,40(8):1737-1740.
[10]石玥,高方圆,董国波,等.新型高效热电材料研究进展[J].金属功能材料,2014,21(1):31-37.SHI Yue,GAO Fangyuan,DONG Guobo,et al. Research progress of new high efficient thermoelectric material[J]. Metallic Functional Materials,2014,21(1):31-37.
[11] PLATZEK D,KARPINSKI G. Measuring the spatial resolution of the Seebeck coefficient and the electric potential[C]∥24th International Conference on Thermoelectric. Clemson,SC,USA:[s.n.],2005:13-16.
[12]温亚娟.典型热电材料的第一原理计算[D].杭州:杭州电子科技大学,2014.WEN Yajuan. The first principle studies of several typical thermoelectric materials[D]. Hangzhou:Hangzhou Dianzi University,2014.
[13]LOWHOM N D,WONG-NG W K,ZHANG Weiping. Round-robin studies of two potential Seebeck coefficient standard reference materials[C]∥26th International Conference on Thermoelectrics. Jeju Island,South Korea:[s.n.],2007:361-365.
[14]王雪,王增平.变压器绕组参数在线计算方法[J].电力自动化设备,2012,32(7):71-75.WANG Xue,WANG Zengping. Online calculation of transformer winding parameters[J]. Electric Power Automation Equipment,2012,32(7):71-75.
[15]ROWE D M. General principles and basic considerations[M]. Boca Raton,USA:CRC Press,2005:1-14.
[16]陈伟根,苏小平,孙才新,等.基于有限体积法的油浸式变压器绕组温度分布计算[J].电力自动化设备,2011,31(6):23-27.CHEN Weigen,SU Xiaoping,SUN Caixin,et al. Temperature distribution calculation based on FVM for oil-immersed power transformer windings[J]. Electric Power Automation Equipment,2011,31(6):23-27.
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