This controller has some advantages: when the initial error is large, the PD feedback part plays main role, and it avoids too large initialtorque output;
It is a relatively low torque device, useful only for the initial makeup of threaded tool joints.
它是扭矩相对较低的装置,仅在对有螺纹的工具接头进行初始上扣时有用。
3
Influences on the speed and direction of the rotation by the phase Angle of the supply voltage, initial Angle of rotor position, PM line flux and the load torque are discussed.