摘要
对现场设备 (LFP— 931A型光纤电流差动保护 )中采用的同步采样方法和基于GPS的同步采样方法的基本原理进行了详细描述 ,对两种方法进行了分析和比较 。
The digital current longitudinal differential protection can be realized by using mucroprocessor and the technology of data communication.The sampling synchronization scheme of the current for two ends of of transmission line is the key technique that must be solved.This paper describes two kinds of synchronized sampling scheme.One is used in LFP-931A digital current differential relay and another is based GPS technology.At the ned of this paper,the characteristics of the two kinds of scheme are analyzed and discussed,and a technical promoted assumption for the synchronous sampling system on the operating equipment at site is presented.
出处
《山东电力高等专科学校学报》
2002年第2期62-64,共3页
Journal of Shandong Electric Power College
关键词
数字电流纵差保护
数据采样
同步方法
线路保护
电力系统
继电保护
Digital current longitudinal differential protection Synchronous sampling Global positioning system Data communication
