电力系统数据采样的方法

随着电力的快速发展,电力系统对发、输、配、用电量的采集也有了更高的要求。电量采集作为电力系统实时控制、监测、调度自动化的重要环节,越来越受到人们的关注。交流采样实时性好、相位失真小、投资少、便于维护,特别是随着计算机和集成电路技术的发展,交流采样原有的困难已逐步得到克服,呈现出取代直流采样的趋势。文章主要介绍电力系统中常用数据采样的方法,分析了两种采样方法的特点,介绍了交流采样的算法,有助于合理选择使用。

Some Methods on Data Sampling in Power System

Along with rapid development of power industry,power system demands higher requirement on data acquisition of generation,transmission,distribution,and power consumption.As an important link of real-time control,monitoring,dispatching automation,power consumption acquisition obtains more and more attention.AC sampling possesses favorable real-time performance, small phase distortion and investment,and convenient maintenance,especially with the development of computer and integrated circuits technology,the original difficulty of AC sampling has been solved gradually,and it represents the tendency of replacing DC sampling.The paper mainly introduces common data sampling methods in power system,and analyzes the character of the methods,as well as introduces arithmetic of AC sampling,and this helps to choose it reasonable.