After investigating the relationship between generator measuring speed pulse and its on - load voltage at phase a , it is proposed in the thesis that we can obtained phasor of generators through messuring dividing frequency signal of generator measuring speed pulse 我們研究了發(fā)電機(jī)測速脈沖和其a相空載電勢相位的關(guān)系,提出了只需測量與發(fā)電機(jī)同軸的測速發(fā)電機(jī)發(fā)出的測速脈沖的分頻信號,經(jīng)過計(jì)算就可以得出發(fā)電機(jī)相角的測量方法。