基于肯德尔相关系数的高压开关设备机械状态评估方法研究

智能高压开关设备在线评估技术是进行故障诊断和实施状态检修的前提和基础,采用了一种基于肯德尔相关系数计算曲线相似度的方法,以本公司自主研制开发的126kV智能隔离断路器为研究对象,在大量现场实验数据的基础上对智能隔离断路器机械状态评估进行了分析和探索。实验结果表明具有非常良好的实用性和可移植性,执行速度快,可靠性高等诸多优点,在开关设备评估中具有很好的应用前景。

Research on the Mechanical State Evaluation Method of High Voltage Switchgear Based on Kendall Correlation Coefficient

Online evaluation technique for the intelligent high voltage switchgear is the premise and foundation for fault diagnosis and implementation of condition- based maintenance. With respect to the intelligent 126kV disconnecting circuit breaker developed by our company,this paper uses a method for calculating the curve similarity based on Kendall correlation coefficient to analyze and explore the evaluation of mechanical state of the intelligent discounting circuit breaker on the basis of lots of site experiment data.Experimental results indicate that this evaluation approach has excellent usability and transportability,high execution speed and high reliability,and has a good perspective of application in the evaluation of switching devices.