船电技术
船電技術
선전기술
2011年
8期
56-59
,共4页
交流电量%瞬时值%峰峰值区间
交流電量%瞬時值%峰峰值區間
교류전량%순시치%봉봉치구간
alternating current parameters%instantaneous value%peak -peak value interval
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。
本文提齣瞭測定交流電參量一種快速精確的方法。利用幾箇少量的交流量瞬時值,精確地確定交流量的幅值(或有效值)和頻率,以及兩箇同頻交流量(電壓和電流)的相位差,進而確定交流電量的有功功率、無功功率、視在功率和功率因數。本方法具有算法準確,運算處理時間短等特點,適應于以微機為覈心的實時測量繫統。
본문제출료측정교류전삼량일충쾌속정학적방법。이용궤개소량적교류량순시치,정학지학정교류량적폭치(혹유효치)화빈솔,이급량개동빈교류량(전압화전류)적상위차,진이학정교류전량적유공공솔、무공공솔、시재공솔화공솔인수。본방법구유산법준학,운산처리시간단등특점,괄응우이미궤위핵심적실시측량계통。
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.