| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter control device which can reduce the distortion of phase current caused by a correction of a voltage directive vector. <P>SOLUTION: The inverter control device includes voltage directive vector creation means of creating voltage directive vectors each consisting of a vector of composite voltage of each of three-phase voltages, or a vector of voltage which the three-phase voltages of an inverter should follow, and voltage directive vector correction means of correcting the voltage directive vector thus created. The inverter is controlled according to the voltage directive vectors after being corrected, and the voltage directive vector correction means makes correction so that the voltage directive vectors after being corrected thereby will, in a current detection interval, become out-of-area vectors where three-phase currents are not detectable; in a current non-detection interval within a carrier cycle, it makes reverse correction so that the correction made in the current detection interval will be canceled out. <P>COPYRIGHT: (C)2012,JPO&INPIT |
