摘要
各种非线性负荷的大量应用使电力系统中谐波含量剧增,谐波问题给电能计量的准确性带来了很大的负面影响。传统的谐波电能计量方法有很多缺点,为此本文提出一种基于快速傅里叶变换(FFT)和虚拟仪器开发环境LabVIEW的谐波电能计量与分析系统的设计方案。本文介绍了系统的总体设计方案,并分别给出了系统各部分的硬件组成和各模块的LabVIEW程序框图。
Application of nonlinear-load in power system causes the increase of harmonics content. The problem of harmonics has a lot of negative impact on the accuracy of electrical energy measurement. The traditional method of harmonics measurement has a lot of disadvantages. For this reason this paper presents a design scheme of electrical energy measurement and analysis system based on FFT （fast Fourier transformation） and LabVIEW. The system design program is introduced. The composition of hardware and the program diagram are given in detail.
出处
《电测与仪表》
北大核心
2010年第1期47-50,共4页
Electrical Measurement & Instrumentation
关键词
谐波
电能计量
虚拟仪器
LABVIEW
FFT
harmonics, electrical energy measurement, virtual instrument, LabVIEW, FFT
