摘要
电涌保护器(SPD)在工作状态下会产生一定的泄漏电流,其泄漏电流的值可以反应SPD的老化程度。针对SPD的老化预测问题,利用其产生的泄漏电流,提出一种基于灰色预测模型的SPD老化预判方法。研究表明:灰色预测模型可以较好地应用于SPD泄漏电流的预测中,预测结果误差较小,具有较高的有效性和实用性,从而为SPD老化预判提供一种可能。此外,为电网电力系统中其他设备状态预判提供了一种崭新思路。
The surge protection device (SPD) can produce a leakage current (IL) in the working status, and the leakage current value can reflect the aging degree of SPD. According to aging prediction problem of SPD, based on grey prediction model, a kind of aging forecasting method is put forward. Research shows that the grey forecasting model can be better applied to SPD leakage current forecast and the result errors is small, so the method has high validity and practicability, which can provides a potential anticipation to forecasting the aging degree of SPD. In addition, it provides a new way of thinking for the state of other equipment in power system.
出处
《电瓷避雷器》
CAS
北大核心
2016年第6期73-76,共4页
Insulators and Surge Arresters
基金
2015年重庆市科学技术研究项目"智能变电站系统建模与测试技术研究"(编号:KJ1502203)
重庆市教育科学"十二五"规划课题"应用本科院校学生科技创新实践体系研究"(编号:2013-ZJ-066)
关键词
灰色预测
SPD
泄漏电流
老化预测
grey prediction
surge protection device (SPD)
leakage current
aging prediction