| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a vector control device for an AC motor and control method therefor, which is capable of suppressing speed ripple and has high speed estimation and following capability. <P>SOLUTION: This control device includes a voltage command value generator which generates a second command value by adding a feed forward voltage command value generated from a motor constant and a current command value to a first voltage command value generated by a current controller 21, low-pass filters 22A, 22B input the first voltage command value and output a third voltage command value respectively, and an adder 22G for adding the third voltage command value to the feed forward voltage command value to generate an observer voltage command value. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
