| 摘要 |
<P>PROBLEM TO BE SOLVED: To offer a controller for a motor which can perform precision motor control by dissolving the slippage of a rotation angle compensating value caused by the setting of a dead time. <P>SOLUTION: This controller for a motor is equipped with a rotation angle estimating part 13 which estimates the rotation angle θre' "td/2" later the center of the next PWM control cycle, based on the rotation angle θre detected by a rotation angle detector 12. A two-phase three-phase converter 3 is so constituted as to calculate voltage command values Vu*, Vv*, and Vw*, using the rotation angle θre' estimated with the rotation angle estimating part 13, as a rotation angle. In case the dead time is set, more precision motor control becomes possible by raising the operation precision of the two-phase three-phase converter, thus this controller can enhance the transient response performance. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
