| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a controller for a synchronous motor capable of attaining higher current responsiveness by suppressing a vibratory component in current response. <P>SOLUTION: This controller includes a compensator for compensating for a control delay at PWM conversion relative to a d-axis estimated current value and a q-axis estimated current value used for calculation of an interference voltage. The comparator is constituted of a second delay element 13, a second PI control unit 14, a second delay compensator 15, a second three-phase converter 16, a third delay element 17, a second d-axis, q-axis converter 18, and a non-interference voltage motor model 19 without interference component. Further, the controller is structured so as to compensate for delays generated in the d-axis estimated current value and the q-axis estimated current value which may be caused by a control delay at PWM conversion. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
