| 摘要 |
PURPOSE:To simplify the structure of a speed control system in the case the speed control system of the motor is digitized by using a microcomputer, by performing the sinple prescesing of software. CONSTITUTION:A DC motor 4 is controlled by an AC power source 3 via a thyristor converter 1. The ignition phase of the thyristor converter 1 is controlled by the microcomputer 5. In the operating process, the ignition signal generating interval under the normal condition is compensated by the result of the regulating operation at every time. If the motor current is in the continuous state, both the current regulating operation and the speed regulating operation are performed. If the current is in an intermittent state, only the speed regulating operation is performed. |
