1) unbalanced three-phase currents
不对称三相电流
3) unbalanced voltages
不对称三相电压
1.
Three-phase unbalanced voltages have great effects on the performance of an induction motor.
对不对称三相电压供电感应电动机起动过程进行了仿真,计算了不同C_(VUF)时感应电动机的起动过程,研究了起动过程中的峰值转矩、起动时间、达到稳态后的三相电流不平衡因数、转速、转速波动、转矩波动与C_(VUF)的关系,得出了相应结论。
4) asymmetric polyphase current
不对称多相电流
5) three-phase symmetrical current source
三相对称电流源
1.
In order to change the traditional measurement of reactance value of reactor,a method based on the PWM control can be carried out under the rated current in the impedance measurement,and is the three-phase symmetrical current source.
为了改变传统测量电抗器电抗值,介绍了一种基于PWM控制的方法,能够在额定电流下进行阻抗测量,且电源为三相对称电流源。
2.
In order to change the traditional measurement of reactance value of reactor,this paper presents a method based on the PWM control which can be carried out impedance measurement under the rated current,and the power is the three-phase symmetrical current source.
传统电抗器电抗值的测量方法为外加三相对称电压源的方法,而电抗器的设计是按三相对称电流源设计的,在实际运行中电抗器两端相当于外接一个对称三相电流源,因此,用传统的测量方法必定引起测量误差。
6) maximum asymmetric three-phase short circuit current
最大不对称三相短路电流
补充资料:相电流
相电流
phase currents
x{ongd一onllu相电流(phase。urrents)三相电源或三相负载每一相的电流(设中性点为N),为九A、人。、少Nc;相的相电流分别为·以三相电源为外在星形接法时其A娜B相和C相咖电流分别三角形接法时,其A相、B相和C九、、九。和云f-
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条