正弦交流电参量的快速计算  

A Fast Method for Measuring Parameters of Alternating Current

作　　者：蓝宇[1] 潘德华[1] 周樑[1] 

机构地区：[1]武汉第二船舶设计研究所,武汉430064

出　　处：《船电技术》2011年第8期56-59,共4页Marine Electric & Electronic Engineering

摘　　要：本文提出了测定交流电参量一种快速精确的方法。利用几个少量的交流量瞬时值,精确地确定交流量的幅值(或有效值)和频率,以及两个同频交流量(电压和电流)的相位差,进而确定交流电量的有功功率、无功功率、视在功率和功率因数。本方法具有算法准确,运算处理时间短等特点,适应于以微机为核心的实时测量系统。In this paper, a fast method for measuring precisely parameters of alternating current is presented With several instantaneous values of alternating current, the amplitude value （or effective value）, frequency and the phase contrast of two alternating current parameters in same frequency （voltage, currenO can be precisely measured. Furthermore, active power, reactive power, apparent output and powerfactor can be measured. This measurement method is specially applicable to PC-based real time measurement system for its precise and quick calculation.

关 键 词：交流电量 瞬时值 峰峰值区间 

分 类 号：TM933.13[电气工程—电力电子与电力传动] TP301.6[自动化与计算机技术—计算机系统结构]