dissolved gas analysis(dga) meaning in English
溶解气体分析
Examples
- 2 . design the scheme of expert system for transformer fault diagnosis based on dga and rough set theory ieee considers dissolved gas analysis ( dga ) is the most efficient method to examine the interior fault of transformer
基于气相色谱分析和粗糙集理论的电力变压器故障诊断专家系统方案设计变压器内部故障的检测有多种手段, ieee认为对变压器内部故障早期诊断最有效的方法是油中气体色谱分析法。 - Combining ann with dissolved gas analysis ( dga ) that is a typical method in transformer diagnosis , transformer fault diagnosis system with friendly interface and excellent capability is finished by java . besides , the method of selecting networks parameter is discussed detailedly , and the influence of different parameters on diagnosis results is analyzed
将变压器诊断中典型的油中气体分析法和神经网络方法相结合,采用java语言开发出界面友好、性能优秀的变压器故障诊断系统;此外,文中还详细探讨了网络各结构参数的选择方法,并且就变压器这一实际诊断系统,分析了不同结构参数对系统误差的影响。 - In accordance with the technological difficulties encountered in the process of insulation supervision based on the dissolved gases analysis ( dga ) , several kinds of model and method are presented to improve the reliability and precision of fault diagnosis of the power transformer . main research content includes : by deeply studying the common transformer faults diagnosing methods , such as three - ratio methods and improved electrical committee agreements , several shortcomings such as uncertainness judgment when the fault reasons , phenomenon and principles come out together while can not consistent to each other etc . for this reason , the old methods can not fully meet the need to engineering practical application . considering fuzzy relationship matrix can fully represents the causality between fault symptoms and fault types , when diagnosing complex equipments with multiple symptoms and fault causes such as power transformer , a synthetic fuzzy diagnosing model is firstly proposed to diagnose transformer ' s insulation faults based on dga in this paper
本文针对应用油中溶解气体分析方法进行变压器绝缘监督时所遇到的主要技术难点,提出了提高变压器故障诊断的准确性、可靠性的几种模诊断方法,主要研究内容有:通过对判断变压器故障常用的三比值法和改良电协研法的深入分析,其诊断准确率较高,但对故障原因、故障现象和故障机理间同时存在不确定性和模糊性的变压器等电气设备的故障诊断,难于满足工程应用的需要;在处理变压器等结构复杂设备的多症状、多原因故障诊断时,模糊关系矩阵可以全面反映这种症状与故障类型间的因果关系,进而提出了变压器故障诊断的模糊综合诊断模型;同时作者还深入分析了模糊算子的特性;针对常用的模糊评判结果的模糊集的集化方法的不足性,提出了将模糊综合诊断与模糊规则推理结合起来进行故障诊断的方法,能达到较好的效果。 - Dissolved gas analysis ( dga ) is one of the mainly technology methods to diagnose the internal malfunction in transformer . by request of dl / t722 - 2000 , < guide to the analysis and the diagnosis of gases dissolved in transformer oil > , the component of h _ 2 , c _ 2h _ 2 , c _ 2h _ 4 , c _ 2h _ 6 , ch _ 4 , co and co _ 2 is used to judge and analyze the internal malfunction in transformer
本系统首先接收气相色谱仪发送的数据信息,并对这些数据进行处理与分析,计算出谱图数据的波峰高度、波峰面积、波峰起始点、基线等值,在此基础上依据定量分析及故障诊断原理对变压器进行诊断,得出结论。