| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a control device for a power converter which stably suppresses current fluctuations by avoiding amplifying steadily present harmonics. <P>SOLUTION: The control device for a power converter includes: a first voltage corrector 805a for generating a first correction signal on the basis of a voltage detection signal retrieved via a first filter for removing harmonic components higher in frequency than a fundamental component of an AC system 4 from an output of a voltage detector 7; a second voltage corrector 805b for generating a second correction signal on the basis of a voltage detection signal retrieved via a second filter having a higher cutoff frequency than the first filter; and a correction signal determiner 806 and a correction signal switch 807 for switching between the correction signals such that the first correction signal is output as a voltage correction signal when a voltage detection value from the voltage detector 7 is within a predetermined set range and that the second correction signal is output as a voltage correction signal when a voltage detection value from the voltage detector 7 exceeds the predetermined set range. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
