elongation

The relationship between stepping angle to the optimal starting frequency,between rotating inertia to the optimal starting frequency,between starting tor.

通过分析步进电动机起动时的运动规律及其矩频特性,建立了最佳起动频率的数学模型,并分析了步距角、传动系统转动惯量、起动转矩、负载转矩等因素对最佳起动频率的影响。

The drive power supply holded the primary characterstics for the motor and it raised four times for stepping angle accuracy in the motor.

使用该驱动电源除可保持电机原有的性能外，还可使电机的步距角精度提高４

When the wind speed is above the rated value,pitch angle is regulated to maintain the constant power output and the constant rotor speed.

风力发电机组由于机械结构以及电气负荷承受能力的限制存在着转速限制和功率限制,额定风速以上时,需要通过控制桨距角来实现额定恒功率输出,同时保持转速在额定转速处。

It is a main problem that how to make the step angle more even all the while.

细分技术作为一种提高步进电机步距分辨率的手段已被大量采用,步进电机采用细分驱动能提高分辨率,减少力矩波动,解决步进电机的低频共振问题,如何使步进电机的微步距角更均匀,一直是细分技术所研究的主要问题。

The step angle of stepping motors is determined by their numbers of phase and numbers of rotor tooth.

众所周知，步进电动机的步距角主要由它的相数和转子齿数决定。