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上海电力学院学报:2018,34(1):19-23,52
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电力电缆局部放电的趋势评估方法
(1.兴义供电局;2.苏州光格设备有限公司)
Trend Assessment Method of Partial Discharge in Power Cable
(1.Xinyi City Power Supply Bureau, Xinyi 5624002, China;2.Suzhou Agioe Co., Ltd., Suzhou 215123, China)
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投稿时间:2017-06-27    
中文摘要: 局部放电是一种长期存在并不断恶化的物理现象,对放电长期趋势的定量评估是局部放电诊断的重点所在.选取放电类型的概率评估、放电量幅值和放电重复率作为定量评估的3个重要参数,结合概率统计的原理,采用移动平均法来计算放电量和重复率的平均增长率,并计算出总体放电相似度,作为定量趋势评估的计算结果.从实际应用来看,按此趋势评估方法计算出来的放电增长率,与实际的放电情况相符.
Abstract:Partial discharge is a long-standing and continually deteriorating physical phenomenon.Quantitative evaluation of discharge trend is important to partial discharge diagnosis.Probability of discharge types,discharging amplitude and repetition rate are selected to be 3 important parameters of quantitative evaluation.Based on the principle of probability statistics,the average growth rate of discharging amplitude and repetition rate is calculated by using the moving average method,and the overall discharge similarity is also calculated as the calculation result of the quantitative trend assessment.From the practical application,the growth rate of discharge calculated by this trend assessment method is matched with the actual discharge situation.
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基金项目:南方电网公司科技项目——基于无线时钟同步技术的电缆局部放电在线监测技术研究(GZ2014-2-0026).
引用文本:
黄吉洋,杜建国,杨忠,等.电力电缆局部放电的趋势评估方法[J].上海电力学院学报,2018,34(1):19-23,52.
HUANG Jiyang,DU Jianguo,YANG Zhong,et al.Trend Assessment Method of Partial Discharge in Power Cable[J].Journal of Shanghai University of Electric Power,2018,34(1):19-23,52.