电测与仪表Issue(22)：119-124,6.
一种介质损耗因数在线监测新方法
A Novel Method for Online Monitoring of Dielectric Loss Factor
摘要
Abstract
There are many inherent performance limitations using traditional algorithms for online measurement of die-lectric loss factor,including synchronous sampling,no inter-harmonics and invariable power system frequency. In a non-stationary signal environment where power frequency fluctuation and inter-harmonic components exist,meas-urement accuracy with traditional methods cannot be guaranteed. The paper proposes a high-accuracy modified meth-od for online monitoring of dielectric loss factor of power equipment. The theoretical basis of the algorithm is based on a new data processing procedure including data truncation and data addition,which can compensate for the phase dis-tortion caused by spectrum offset of addition data. The algorithm can accurately extract the fundamental signal and cal-culate the dielectric loss factor. Measured results of simulations and practical engineering projects show that the new al-gorithm is feasible for application without limitations rendered above.关键词
高准确度/改进方法/在线监测/介质损耗因数Key words
high-accuracy/modified method/online monitoring/dielectric loss factor分类
信息技术与安全科学引用本文复制引用
宋涛..一种介质损耗因数在线监测新方法[J].电测与仪表,2014,(22):119-124,6.基金项目
山东省高校科技计划项目 （）
