工频电参数测量方法研究  

A Studing of the Measuring Method of AC Electric Parameters

作　　者：廖绍成 张华森 

机构地区：[1]浙江省新昌县供电局,浙江新昌312500 [2]浙江省乐清市供电局,浙江乐清312518

出　　处：《电测与仪表》2009年第12期29-32,共4页Electrical Measurement & Instrumentation

摘　　要：用硬件同步法实现了工频电参数测量,提出了无功功率的测量方法,给出了测量系统电路。提出了测量频率的新方法,给出了频率线性转化为直流电压的数学表达式及测量电路。提出了系统数据通信串行通信定义并行通信的方法,给出了硬件电路。提出了硬件同步采样算法的理论误差估计公式,并对系统测量误差进行了分析。The system for measuring AC electric parameters based on the hardware synchronous sampling measurement is realized, a measuring method of the reactive power is put forward, and the circuit of measuring system is given. A new method of measuring frequency is advanced, and the math expressions in which the frequency is linearly translated into DC voltage and the measuring circuit are given. The means of system data communication with parallel communication which is defined into serial communication, and the hardware circuit are given. The estimating expression of theory error based on the hardware synchronous sampling measurement is advanced, and the system measuring error is analyzed.

关 键 词：硬件同步采样 测量系统 频率测量 系统测量误差 

分 类 号：TM933[电气工程—电力电子与电力传动]