摘要
分析了功率因数在相敏保护中重要地位,重点介绍常见的功率因数数字化获取的方法,对各种方法进行分析和比较,并指出了目前功率因数数字化检测存在的问题。针对一些算法存在的问题,介绍了一种频率测量与跟踪算法,可获取更好的测量准确度。
Analyzes the important position of power factor in phase-sensitive protection,mainly introduces the common digital acquiring methods of power factor,based on analyzing and comparing the various methods,points out the problems existing in the current power factor digital measurement.To the problems for some algorithms,introduces a frequency measurement and tracking algorithm method to obtain the better measuring accuracy.
出处
《煤矿机电》
2010年第5期52-54,共3页
Colliery Mechanical & Electrical Technology
基金
国家"十一五"科技支撑计划子项目(编号:2008BAB36B09)
关键词
相敏保护
功率因数
数字化
频率测量与跟踪
phase-sensitive protection
power factor
digital
frequency measurement and tracking
