合成电压 meaning in English

resultant voltage

In this paper , according to the equation of voltage vector of single - phase motor operating at symmetrical condition , author presents a new voltage - vector pwm method of variable frequency control for single - phase motor . in system , the voltage vector is used as a control parameter
本文根据单相电动机对称运行时的合成电压矢量方程，提出了以合成电压矢量为控制量的单相电动机电压矢量式pwm变频调速控制方法，并进行了计算机仿真及制作了单相变频器。