摘要
为便于实时监测谐波和加强谐波管理,针对电力系统谐波的特点,本文提出一种实时在线谐波检测装置的设计与实现方法。用89C51实现整个检测过程,满足实时在线检测的要求。对于谐波检测过程中的频谱混叠和频谱泄漏问题,这里采用滤波器和自适应算法提高谐波检测的精度。同时利用虚拟仪器技术,设计出良好的用户界面。实验证明,该装置具有高精度,高性价比等优点。
According to characteristic of electric power, equipment for harmonic detection, basing on realtime online detection is designed. It can serves for people who takes charge of the harmonic detection and management. In order to fulfill the need of real-time online, the whole processing is carried out with 89C51. Spectrum aliasing and spectrum leakage are exactly expressed. Low pass filter and adaptive arithmetic are used for improving precision of detection output. Otherwise, we design the excellent user interface with virtual instrument technique. The experiment result tells us that this equipment has much good performance, such as high precision, and low price.
出处
《电子质量》
2007年第6期1-3,共3页
Electronics Quality
关键词
谐波检测
频谱混叠
频谱泄漏
虚拟仪器
Harmonic detection
Spectrum aliasing
Spectrum leakage
Virtual instrument
