Soft Start Control of Three-Phase Asynchronous Motor Based on Discrete Frequency Conversion
Aiming at the traditional three-phase asynchronous motor soft start method,which has insufficient starting torque and is difficult to be applied to some occasions requiring heavy-load starting of the motor,a discrete frequency conversion soft start control method is adopted,combining the discrete frequency conversion method with the traditional soft start control and adding power factor angle compensation to solve to improve the smoothness of the motor during startup.Experiments show that this control method can effectively improve the starting torque of the motor while suppressing the motor starting current,and at the same time,it can suppress the rock during the motor starting process.
three-phase asynchronous motorsoft startdiscrete frequency conversionstarting torque
万方数据
维普
