华电技术 ›› 2011, Vol. 33 ›› Issue (9): 67-68.

• 技术交流 • 上一篇    下一篇

一种变压器油中溶解气体故障诊断方法

柳大海1,韩冬1,张航1,张聪2,王振岳1   

  1. 1.许继电气股份有限公司,河南许昌461000; 2.漯河供电公司,河南漯河462000
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-09-25 发布日期:2011-09-25

Diagnosis method for fault of dissolved gas in transformer oil

LIU Dahai1, HAN Dong1, ZHANG Hang1, ZHANG Cong2, WANG Zhenyue1   

  1. 1.Xuji Electric Corporation Limited, Xuchang 461000, China; 2.Luohe Power Supply Company, Luohe 462000, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-09-25 Published:2011-09-25

摘要: 为了提高变压器油中溶解特征气体的分析诊断准确度,结合模糊理论和改进遗传算法对改良IEC三比值分析法气体比值边界和故障编码进行模糊处理,通过模糊推理得到故障诊断结果,大幅度降低其他干扰气体对诊断结果的影响,从而提高变压器油中溶解气体色谱分析的准确度和精度,提高变压器绝缘油的运行可靠性。

关键词: 变压器, IEC三比值法, 模糊理论, 遗传算法

Abstract: In order to enhance the accuracy of analysis and diagnosis on dissolved features gas in transformer oil, combining with fuzzy theory and advanced genetic algorithm, the fuzzy processing on the gas ratio boundary and fault codes of the improved IEC three ratio method was carried out; then the fuzzy inference was used to obtain the fault diagnosis result. This method can reduce the influence of other interfering gases on the diagnosis result greatly, enhance the accuracy of chromatographic analysis of the dissolved gas in transformer oil, and enhance the operation reliability of the transformer insulating oil.

Key words: transformer, IEC three ratio method, fuzzy theory, genetic algorithm