| 摘要 |
<p>The processing machine is driven by an electric motor, its load varies, and the circuit consists of a speed control circuit and a current control circuit. A variable proportional to the load torque is applied to the current controllers as an additional nominal value. The speed controller (10) is a pure proportional controller, and the additional nominal value (mL) is generated by an automatic controller (12) controlled by the driving motor (1) current (iM). The speed (nM) of the motor is controlled. A differential rotary speed is developed between the driving motor (1) and the working machine (3) which is proportional to the current in the circuit.</p> |
