| 基于气体传感器的变压器在线DGA系统的研究 |
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| 引用本文： | 赵立华,李洋流,李国强.基于气体传感器的变压器在线DGA系统的研究[J].传感器与微系统,2009,28(11):46-48. |
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| 作者姓名： | 赵立华 李洋流 李国强 |
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| 作者单位： | 1. 大庆石化公司,黑龙江,大庆,163714
2. 哈尔滨工业大学机电工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 设计的在线溶解气体分析（DGA）系统采用高分子膜提取油中溶解气体，利用气体传感器对气体体积分数进行检测，使用无线通信模块将气体体积分数信息传输到主控室的计算机上。与离线色谱相比，在气体体积分数测量范围为（4～200）×10^-6，对H2测量最大绝对误差为2×10^-6，对cO测量在（100～2000）×10“的最大绝对误差为30×10^-6，可以达到对变压器油中溶解气体进行在线监测分析的要求。
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| 关 键 词： | 变压器 在线溶解气体分析 气体传感器 无线传输 |
Study of on-line transformer DGA system based on gas sensor |
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| ZHAO Li-hua,LI Yang-liu,LI Guo-qiang.Study of on-line transformer DGA system based on gas sensor[J].Transducer and Microsystem Technology,2009,28(11):46-48. |
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| Authors: | ZHAO Li-hua LI Yang-liu LI Guo-qiang |
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| Affiliation: | ZHAO Li-hua1,LI Yang-liu2,LI Guo-qiang2(1.Daqing Petrochemical Company,Daqing 163714,China,2.School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150001,China) |
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| Abstract: | To satisfy this requirement,most of the electrical utilities run standard dissolved gas analysis(DGA).As summarizing disadvantage of current theories used in real-time gas concentration measurement,an on-line DGA system which mounted PTFE membrane,gas sensors,weak signal detection module,wireless communication module is developed.Compared with GC result of DGA,for hydrogen detection,the biggest error of the system is 2×10~(-5) at rang of(4～200)×10~(-6);for carbon monoxide detection,the biggest error of the system is 30×10~(-6)at range of(100～2000)×10~(-6).The system can meet the requirement of on-line DGA.An additional potential of cost reductions and safely improvements can be achieved. |
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| Keywords: | transformers on-line DGA gas sensors wireless communication |
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