| 摘要 |
PURPOSE:To enhance the responding performance of controlling the speed of a motor by calculating through estimation and outputting the instructed value to a minor loop during sampling period of a major loop. CONSTITUTION:When a sample control calculation based on the speed instruction value SP and the speed returned value SF of n-th speed control system is performed, the value of two middle points up to next sampling time, i.e., the predictive calculation of the speed instruction value and the speed returned value at the points n+(1/3), n+(2/3) are executed as prescribed by using the sampled value of previous time and the sampled value of this time. Subsequently, the basic calculation of the speed control system is further performed as prescribed, and used as predictive current command value iP at n+(1/3), n+(1/3) of a current control system. In this manner, the responding performance of controlling the speed of the motor can be enhanced. |
