| 摘要 |
<p>Equipment can be used for the control of current electromotive 5 with independent starting in cases when it is necessary to secure rotor turning at an appointed frequency. It ensures electromotive synchrony rotation according to the appointed reference frequency (or multi-layer of that period) with preciseness to constant phase angle.On the proposed device (fig. 1) the first frequency divider 1 with impulse former 3 attached to its output, forms the first dosage block which provides an impulse base-chain to the armature feeding. The second frequency divider together with the second impulse former 4 created signal and feed-back signal from motion sensor 6 create an impulse, part of which is summed to each specific base-chain impulse, prolonging it. When the load changes, the summed regulating impulse width increases or decreases. Thus the average volume of armature feeding changes and the rotation accelerates or decelerates. Analogous process occurs if frequency of reference changes.The equipment might be used both for constant and changeable load cases. Changing load or frequency changes the rotation phase and further stabilization of the new value is enacted.<IMAGE></p> |
