摘要
为了对电力谐波进行准确的测量,本文采用计算机实现数字化测量的方法,在LabVIEW7.1和MATLAB6.5平台上,运用虚拟仪器技术和数据库技术开发了网络化的电力谐波检测系统。系统可以远程采集谐波信号,并采用一种基于小波补偿的FFT谐波分析算法进行谐波分析,提取暂态扰动,得到各次稳态谐波的具体参数值和含有量,提高了谐波分析的精确度和直观性。系统具有分析效果好、投入成本低、易于功能扩展的优点。
In this paper, a networked detection and analysis system for harmonic has been designed and implemented, which has adopted the digital measurement methods using computers, and has combined the virtual instrument technology and database technology. The develop platform involves LabVIEW 7. 1 and MATLAB 6. 5. This paper has also proposed a new FFT algorithm based on the wavelet transform reconstruction. With this algorithm, not only each stable harmonic is obtained, but also those unstable disturbances can be analyzed. This system has advantages of better analyzed effection and low cost, and can be extended easily.
出处
《电子测量技术》
2007年第2期90-92,共3页
Electronic Measurement Technology
关键词
谐波分析
虚拟仪器
网络
小波
harmonic analysis
virtual instrument
network
wavelet
