军用电站虚拟电能质量检测仪的设计与实现  

Design and Implementation of Power Line Harmonic Analyzer Based on Virtual Instrument

作　　者：钱克昌[1] 刘洪文[1] 赵锦成[1] 

机构地区：[1]军械工程学院,河北石家庄050003

出　　处：《现代电子技术》2007年第15期58-60,63,共4页Modern Electronics Technique

摘　　要：以军用电站为核心的军用电力系统具有多频率、频率波动大,电能质量要求高,且多为野外作业等特点,所以军用电站电能检测仪必须满足精度高、工作稳定、便于携带等要求。介绍了基于LabWindows/CVI的军用电站虚拟电能质量检测仪的工作原理和设计要点,采用单片机为核心的数据采样电路和高精度的双时窗FFT谱分析算法,实现检测仪精度高、工作稳定、抗干扰能力强的特点。实践证明,这种电能质量检测仪完全能够满足军用电站电能测试要求。The military power system, which core is military power station, has more than one frequency, more fluctuant frequency, better power quality,and often works in the field, so the power quality analyzer must have high accuracy and works well in the field. The working principle and design method of the power line harmonic analyzer which based on virtual instrument for military generating set are introduced. A new method which uses two window functions to do spectrum analysis is proposed,and the core of sampling circuit is based on microprocessor. The analyzer works well in the field and displays good characteristics of anti-interference. It is proved that this system can satisfy the demand of military power quality test.

关 键 词：LABWINDOWS/CVI 军用电站 电能质量 FFT 

分 类 号：TM930.12[电气工程—电力电子与电力传动]