| 灰关联分析在电容型设备绝缘故障诊断中的应用初探 |
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| 引用本文： | 王楠,律方成,李和明.灰关联分析在电容型设备绝缘故障诊断中的应用初探[J].高压电器,2003,39(5):32-35. |
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| 作者姓名： | 王楠 律方成 李和明 |
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| 作者单位： | 华北电力大学,河北,保定,071003 |
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| 基金项目： | 华北电力大学博士基金(060103) |
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| 摘 要： | 在线监测电容型设备绝缘所获得的tanδ值是波动的,这与环境温湿度、电压等外界因素的影响有关。笔者分析了这些因素对tanδ的影响后,引入了灰关联分析来量化tanδ序列变化与各因素序列变化的接近性,并通过对灰关联度排序实现故障诊断,实例分析验证了方法的有效性。最后,对灰关联分析在电容型设备故障诊断中的应用提出了一些建议。
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| 关 键 词： | 电容型设备 故障诊断 在线监测 灰关联分析 介质损耗因素 |
| 文章编号： | 1001-1609(2003)05-0032-04 |
| 修稿时间： | 2003年4月25日 |
PRELIMINARY APPLICATION OF GREY RELATIONAL ANALYSIS TO INSULATION FAULT DIAGNOSIS FOR CAPACITIVE EQUIPMENT |
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| WANG Nan,LU Fang-cheng,LI He-ming.PRELIMINARY APPLICATION OF GREY RELATIONAL ANALYSIS TO INSULATION FAULT DIAGNOSIS FOR CAPACITIVE EQUIPMENT[J].High Voltage Apparatus,2003,39(5):32-35. |
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| Authors: | WANG Nan LU Fang-cheng LI He-ming |
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| Abstract: | Due to influence of some factors such as ambient temperature, humidity and bus voltage, the on-line measured dielectric dissipation factor tanδ of capacitive equipment is fluctuant. In this paper, the influence of those factors on tanδ is analyzed. Then grey relational analysis is introduced to quantify similarity between tanδ data series and effective factor data series. Through sorting grey relational degree, the fault diagnosis is realized. A practical case shows the approach is valid. Finally, proposals are provided for further application of grey relational analysis to insulation fault diagnosis for capacitive equipment. |
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| Keywords: | capacitive equipment fault diagnosis on-line monitoring grey relational analysis dielectric dissipation factor |
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