对于电动机起动需要控制起动电流和转矩震动的问题,采用双闭环的控制方案,即电流闭环控制和功率因数角闭环控制。
As for the problem the high current and the vibration of the torque, the double closed loops which include the current and power factor Angle are worked out.
本文论述了可控硅逆变器逆变角影响串级调速装置功率因数的基本原理。
This paper discusses the basic principle which the inverted firing angle of thyristor inverter has the influence on power factor of a cascade connected device.
光纤陀螺与温度相关误差项主要为零漂和标度因数,输入轴失准角也是影响光纤陀螺应用的一个重要误差项。
The errors of FOG involved with temperature are zero bias and scale factor. Input axis misalignment is another important error with temperature.
在达到最大强化因数时,三角形电极所需要施加的平均电场强度和能耗比圆柱电极低得多。
However, the average electrical field strength and energy consumption for the maximum enhancement factor for the triangular rod electrode are much lower than for the cylindrical electrode.
分析了影响功率因数角的因素,研究了定角控制的基本原理,给出了定角控制方法的实现方案。
Elements that affect the output power factor Angle are analyzed, the basic principle of constant power factor Angle control is studied and its realization scheme is presented.
探讨了通过对导通角的控制来提高离子膜整流装置功率因数的方法。
Methods are explored to improve power factors of ion membrane of the rectifying device through control of the conduction angles.
指出在K值相同时,风电场引起的电压变化还与电网阻抗角和风电场功率因数有关。
The simulation demonstrates that even though K value is same, the power grid impedance angle and wind farm power factor may also affect the voltage variation which is caused by wind farm.
由于谐振网络的品质因数比较低,以往常角的基波近似分析法准确性差。
Since the Q of the resonant network in often low, the analysis in the form of fundamental sinusoidal approximation is not accurate enough.
由于谐振网络的品质因数比较低,以往常角的基波近似分析法准确性差。
Since the Q of the resonant network in often low, the analysis in the form of fundamental sinusoidal approximation is not accurate enough.
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