从最低转速到最高转速，伺服电机都能平滑运转，转矩波动小。
From the lowest to the highest speed, speed servo motor can smooth running, torque ripple is small.
低电压软启动器以体积小，转矩可以调节、起动平滑、冲击小并具有软停机功能等优点得到了越来越多的应用。
The low-voltage soft starter has been applied increasingly due to its advantages such as small size, adjustable torque, smooth starting, low impact and soft-stop function.
从最低转速到最高转速，伺服电机都能平滑运转，转矩波动小。
From the lowest speed to the highest speed, servo motor can smooth running, torque ripple is small.
该方法具有启动电流小、启动转矩大、启动平滑、运行稳定、控制效果好的特点。
It has many advantages such as small starting current, heavy starting torque, stable starting running and good control effect.
理论分析和实验表明：提出的方法与霍尔传感器一样能保证无刷直流电机快速大转矩、小抖动、无堵转的平滑启动。
Theoretical analysis and experimental results show that the method has the effect as same as Hall sensor in the event that ensure the DC motor start-up quickly and microseism, and no locked rotor.
理论分析和实验表明：提出的方法与霍尔传感器一样能保证无刷直流电机快速大转矩、小抖动、无堵转的平滑启动。
Theoretical analysis and experimental results show that the method has the effect as same as Hall sensor in the event that ensure the DC motor start-up quickly and microseism, and no locked rotor.
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