基于LabVIEW实现的非正弦电力系统参数检测  

Parameter Measuring in Nonsinusoidal Electric Power System Based on LabVIEW

作　　者：张聪[1] 李智[2] 

机构地区：[1]中国船舶重工集团公司第七一二研究所,湖北武汉430064 [2]华中电力调度通信中心,湖北武汉430077

出　　处：《计算机测量与控制》2009年第2期307-309,共3页Computer Measurement &Control

摘　　要：针对目前电力系统电压、电流波形畸变,导致大多数以工频标准正弦波为测试对象而设计的有功功率和功率因数测量仪表测量精度下降的实际情况,开发一种基于虚拟仪器技术的新型电力参数检测系统;采用LabVIEW软件作为系统的开发平台,并采用了频率软跟踪技术,简化了硬件电路,可实现快速、在线、准确测量各项电力参数,实时分析电能质量,显示、打印、保存测试结果,并可实现远程监测;实际表明:该系统电路结构简单、集成度高,测量准确、性能稳定。Due to the wave distortion of voltage and current in power system, the measurement accuracy of active power and power factor decreases in most measuring instruments designed for 50Hz standard sine wave. A power quality automatic monitoring system based on virtual instruments technique is introduced. We apply a soft frequency tracing technique which can reduce the hardware circuit structure. The system can detect power system data quickly, on line and accurately by using LabVIEW software, analyze electricity quality immediately, display, print and save the measurement results, it can remarkably realize remote detection also. The practice shows that the system is simple, highly integrated, exact and stable.

关 键 词：LABVIEW 非正弦 频率跟踪 

分 类 号：TP271[自动化与计算机技术—检测技术与自动化装置]