變壓器故障診斷專(zhuān)家系統(tǒng)的改良設(shè)計(jì)
鄭燁1,黃海2,趙海峰1,袁帥1
(1 湖南省送變電工程公司,湖南 長(zhǎng)沙 410007;
2 湖南省電力公司長(zhǎng)沙供電分公司,湖南 長(zhǎng)沙 410001)
摘 要: 介紹了變壓器局部放電模型、分類(lèi)以及局部放電信號(hào)在線檢測(cè)技術(shù),針對(duì)變壓器局部放電的故障診斷,設(shè)計(jì)了一種基于模糊推理的變壓器局部放電專(zhuān)家系統(tǒng),該系統(tǒng)建立在傳統(tǒng)的專(zhuān)家系統(tǒng)和模糊推理器上。通過(guò)仿真實(shí)驗(yàn)結(jié)果表明,改良后的專(zhuān)家系統(tǒng)對(duì)四種典型局部放電信號(hào)的識(shí)別率有較大提高,為進(jìn)行局部放電的模式識(shí)別提供了一種可靠方法。
關(guān)鍵詞: 局部放電;故障診斷;模糊推理;專(zhuān)家系統(tǒng)
中圖分類(lèi)號(hào):TM41 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2014)01-0047-04
Improved Design of Expert System for Transformer Fault Diagnosis
ZHENG Ye1, HUANG Hai2, ZHAO Hai-feng1, YUAN Shuai1
(1 Hunan Electric Power Transmission & Transformation Corporation, Changsha 410007, China;
2 Changsha Power Supply Branch of Hunan Electric Power Company, Changsha 410001, China)
Abstract: Introduction was made to the model and categories of transformer partial discharge, as well as the online detection technology of partial discharge signals. Aiming at the fault diagnosis of transformer partial discharge, this paper designed a kind of expert system of transformer partial discharge based on fuzzy reasoning. This system was built on the traditional expert systems and fuzzy reasoning unit. The results of simulation experiments show that the improved expert system greatly raised the recognition rate of four typical partial discharge signals, which provides a reliable method for partial discharge pattern recognition.
Key words: partial discharge; fault diagnosis; fuzzy reasoning; expert system
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