异步电机的功率因数检测及其控制

Detection and Control of Induction Motor Power Factor

给出了异步电动机功率因数与转差角频率Δω的关系 ,提出了用单片机检测电网功率因数的实施方案 ,并在异步电机恒功率因数控制系统中得到应用 ,实验证明 ,在轻。

This paper analyzes the relationship between power factor and angular frequency Δ ω of induction motor and puts forward an implementation method by using a single chip computer to detect the phase shift of voltage and current.This method can be applied to a constant power factor control system of induction motor.The experiment results show that the proposed method is effective under the condition of no load or light load.