Power factor characteristics of the rectifier is introduced, and control methods for the conduction angles are analyzed. 介绍了整流装置的功率因数(PF)的特点,分析了导通角的控制方法。
Improve the power factor to avoid the motor direct-frequency high-current use of the motor coil and grid impact. 提高了功率因素,避免了电机直接工频使用时大电流对电机线圈和电网的冲击。
According to this relationship, vector control system with energy-saving based on constant power factor was formed. 通过此关系,设计了基于恒功率因数(PF)的节能型异步电动机矢量控制系统。
This paper introduces several methods of reducing energy loss based on enhancing natural power factor of asynchronous motor. 介绍了异步电动机相关能量损耗和以提高其自然功率因数(PF)为主的几种节能降损方法。
Line, bypass and power factor correction contactor coils can be directly controlled. 可直接控制线路、旁通和功率因素校正接触器线圈。