光声光谱技术在电厂变压器在线监测中的应用
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引用本文:曾 毅1,李志军2,严新荣3,冯英岭2,宗起振2,吴 淼4.光声光谱技术在电厂变压器在线监测中的应用[J].计算技术与自动化,2017,(4):60-63
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曾 毅1,李志军2,严新荣3,冯英岭2,宗起振2,吴 淼4 (1.安徽华电六安电厂有限公司,安徽 六安 237126 2.国电南京自动化股份有限公司江苏 南京 2111533.中国华电集团科技环保部北京 100073
4.无锡出入境检验检疫局
江苏 无锡 214001) 
中文摘要:发电厂作为智能电网的起点,其安全运行的重要性不言而喻,而发电厂中变压器作为发电输电的关键设备,需要长期高负荷运行,一旦发生故障会对电厂的经济效益和社会生产造成巨大影响。光声光谱技术作为一种新的变压器油中溶解气体在线监测技术,相较于传统的气相色谱法有着诸多优势:测量精度高、检测时间短、长期稳定性好、无需载气结构简单、多种气体同时在线监测、显著减少维护成本等。由此可见,光声光谱法更加适用于变压器油中气体在线监测,能够对变压器状况做到实时监测,对典型故障作出预警,增加变压器的安全性和可靠性。实际应用结果表明,具有及其广阔的推广应用前景。
中文关键词:光声光谱  在线监测  溶解气体分析  DFB  有源光声池
 
Photoacoustic Spectroscopy Applyed to Transformer On-line Monitoring in Power Plant
Abstract:Power plant as the starting point of the smart grid,the safe operation is the importance of self-evident,the transformer in power plants as the key part of power transmission equipment,had been worked in high load for a long time,In the event of failure,it will make huge impact economic to power plant and social production.Photoacoustic spectroscopy as a new kind of dissolved gas in transformer oil online monitoring technology,compared with the traditional gas chromatography has many advantages: high accuracy,short test time,good stability with long-term,no need carrier of simple structure,kinds of gas monitored on-line at the same time,reduced the maintenance costs significantly,etc.Photoacoustic spectroscopy,therefore,is more suitable for gas in transformer oil on-line monitoring,will achieve real-time monitoring of transformer condition and the typical fault warning.The practical results show that,it has the broad application prospect.
keywords:photoacoustic spectroscopy  on-line monitoring  dissolved gas analysis  DFB  active photoacoustic cell
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