| 摘要 |
In a method for controlling a current command value by comparing a voltag e with a set value, it is required to vary the set value depending on voltag e variation and thereby complicated control is required. The vector controll er of a permanent magnet synchronous motor comprises a section for correctin g a current command value by a current command value correction value calcul ated based on a modulation factor to thereby be able to achieve a stable flu x-weakening control in a single pulse mode in a high speed region with a sim ple arrangement. |
