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Received:June 27, 2017
Received:June 27, 2017
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.
keywords: partial discharge trend assessment discharge type discharge capacity discharge repetition rate
文章编号：20181004 中图分类号： 文献标志码：
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）.
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