| 摘要 |
PURPOSE:To ensure the stable operation of a control system even when a system to be controlled contains a gear by feeding back the speed of load to the control system as actual speed. CONSTITUTION:A torque-section current generator 7 arithmetically operates and amplifies a deviation between a speed reference signal omega*m and an output omegam from a speed generator 16. Since the speed generator 16 is coupled axially with a reel, etc. 5 as the load of an induction motor 4 at that time, the quantity of fed-back speed is the quantity of speed of the load 5. Accordingly, even when the GD<2> of a machine system changes into GD<2> of the induction motor 4+GD<2> of the load 5 from the GD<2> of the induction motor 4 by the effect of the backlash of a gear, the induction motor 4 overshoots to the speed reference omega*m, but the overshoot has not an effect on the relationship of the speed reference omega*m and a fed-back speed omegam. |
