Insulation Diagnosis of XLPE Cables by Expert System and Its Application

XLPE电缆绝缘专家系统诊断及其应用

• 批准号: 05650311
• 负责人: KANEKO Kiyoji
• 金额: $ 1.41万
• 依托单位: Kyushu Tokai University (1994)Tokai University (1993)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05650311/
• 关键词: Expert system; XLPE cable; Insulation degradation diagnosis; Degradation trend monitoring; Diagnosis on live-wire state; Practical application of expert system; 絶縁診断; ファジィ推論

This study has developed and practical applied an expert system for diagnosing insulation degradation of 6.6kV XLPE cables, during 2 years for 1993 and 1994. In this expert system, the main program of computer applications is written in C-language, the main inference routine is constructed by a backward inference rule of OPS83. In addition, the inference with insulation characteristic value is done by a fuzzy inference method. At the beginning of this study, a prototype expert system has been performed by using some insulation characteristic value cbtained from a power outage test. The expert system has made remarkable achievements that the diagnosis results of system almost agreed with those of the experts. However, since it is not allowed to stop the power supply for a long time, the power outage test can not be insisted as an advantageous method. And also, the insulation diagnosis analyzing only insulation characteristic value is no advantage for monitoring degradation trends of cab … More le insulation. In order to correct these defects, the expert system has added a knowledge base of insulation degradation data obtained from visual inspection tests. The knowledge base has been constructed by hearing of the experts. The computer program of expert system has been modified for applying to a live-wire state of XLPE cables. In this case, the diagnosis is carried out by analyzing insulation resistance value and sheath insulation resistance value obtained from the live-wire test. The modifications have improved the diagnosis accuracy of the expert system. Since the insulation degradation differs in some conditions such as manufacturing form, installation environment and installation years, the criteria of diagnosis has reformed by reflecting the conditions in the expert system. In the system evaluation, it has been found that both results of the system and the experts coincide with each other in 85%.Furthermore, the expert system has been improved as the insulation characteristic value is automatically inputted by a live-wire insulation diagnoser via a GP-IB cable. The live-wire insulation diagnoser has been used through the kind offer from Fujikura LTD.The improvement of system enable us to always monitor the trends and diagnose the insulation degradation. This study achieves the expert system which has excellent performance, and has practical applied the system to 6 lines of the XLPE cables operating in a factory. Less

本研究在1993年和1994年的两年时间里，开发并实际应用了一个诊断6.6kV交联聚乙烯电缆绝缘劣化的专家系统。该专家系统的计算机应用主程序用C语言编写，主推理程序采用OPS 83的反向推理规则。此外，采用模糊推理方法对绝缘特征值进行推理。在本研究开始时，一个原型的专家系统已被执行，通过使用一些绝缘特性值cbetrayed从停电测试。专家系统取得了显著的成绩，系统诊断结果与专家诊断结果基本一致。但是，由于不允许长时间停止供电，因此不能坚持停电测试作为有利的方法。另外，仅分析绝缘特征值的绝缘诊断方法不利于监测驾驶室的老化趋势 ...更多信息 低绝缘。为了纠正这些缺陷，专家系统增加了一个知识库的绝缘退化数据从目视检查测试。知识库是通过听取专家的意见而构建的。对专家系统的计算机程序进行了修改，使之适用于XLPE电缆的带电状态。在这种情况下，通过分析从带电测试获得的绝缘电阻值和护套绝缘电阻值来进行诊断。这些改进提高了专家系统的诊断精度。由于绝缘劣化在制造形式、安装环境和安装年限等条件下有所不同，因此通过在专家系统中反映这些条件，对诊断标准进行了改革。系统评估结果表明，系统与专家评估结果的一致性达到85%以上，并通过GP-IB电缆由带电绝缘诊断仪自动输入绝缘特征值，从而改进了专家系统。带电绝缘诊断仪已通过藤仓公司的实物报价使用。系统的改进使我们能够随时监测趋势并诊断绝缘退化。本研究实现了性能优良的专家系统，并将该系统实际应用于某厂运行的6条交联聚乙烯电缆。少

项目成果

K.Kaneko et al.: ""Insulation Diagnosis of MV XLPE Cables by Expert Systems"" FUJIKURA Technical Report. No.85. 32-34 (1993)

K.Kaneko 等人：“专家系统对中压 XLPE 电缆的绝缘诊断”FUJIKURA 技术报告。

Jong-Bum Lee,Kiyoji Kaneko,Young-Chan Choi,Hiroto Kubota,Ryu-ichiro Ohyama: "An Expert System for Diagnosing Insulation Degradation of XLPE Cables" 9th International Symposium on High Voltage Engineering(ISH). (受理).

Jong-Bum Lee、Kiyoji Kaneko、Young-Chan Choi、Hiroto Kubota、Ryu-ichiro Ohyama：“诊断 XLPE 电缆绝缘退化​​的专家系统”第九届国际高电压工程研讨会 (ISH)（已接受）。

金古喜代治,大山龍一郎,崔 永燦,新元 孝,小野幹幸: "高圧CVケーブルの絶縁劣化診断評価に関する考察" 東海大学工学部紀要. 33. 1-9 (1993)

Kiyoharu Kaneko、Ryuichiro Oyama、Yongsan Choi、Takashi Shinmoto、Mikiyuki Ono：“关于高压 CV 电缆绝缘劣化诊断和评估的考虑”东海大学工学部通报 33. 1-9 (1993)。

Young-Chan Choi,Heroto Kubota,Kiyoji Kaneko,Ryu-ichiro Ohyama,Jorg-Bum Lee: "Insulation Deagnosis of XLPE Cables by Expert System Using Fuzzy Inference" 4th International Conference on Insulated power Cables. (受理).

Young-Chan Choi、Heroto Kubota、Kiyoji Kaneko、Ryu-ichiro Ohyama、Jorg-Bum Lee：“使用模糊推理的专家系统对 XLPE 电缆进行绝缘诊断”第四届国际绝缘电力电缆会议（已接受）。

Yong-Chan Choi, K.Kaneko et al.: ""An Expert System on Insulation Diagnosis of XLPE Cables by Fuzzy Inference"" Proc.of KIEE. (accept).

Yong-Chan Choi、K.Kaneko 等人：“通过模糊推理进行 XLPE 电缆绝缘诊断的专家系统”Proc.of KIEE。