电能质量测量系统中数据采集要求的定量分析

A quantitative analysis of the data acquisition requirements for measuring the parameters of power quality

电能质量的指标测量对仪表设计者提出了更大的挑战。这些指标有不同的特性,导致对于数据采集系统有不同的要求,不同的要求可能是相互矛盾的。本文对准确测量电能质量的指标所必需的要求进行了仔细的分析,它主要集中于采样方法和数字化处理。提出仔细选择数据采集器的硬件对于确保测量精度是极为重要的。

Measuring the parameters of power quality takes great challenges to instruments designers.The many parameters having different characteristics call for differentand possibly contradictory on the data acquisition system.This article reviews the requirements needed for accurating measurement of parameters of power quality.It focuses on the sampling method and the digitization process.The results show that careful selection of data acquisition hardware is paramount to ensure accurate measurements.