| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a hunting phenomenon in which a current swings greatly in an motor drive system. <P>SOLUTION: The present invention is an output current distortion compensation device of an inverter including an inverter control section which generates a PWM signal for controlling a PWM voltage generating section. The inverter control section includes a first dead time compensation voltage generation section which generates a compensation voltage in accordance with an output current polarity of each phase of the inverter; and a second dead time compensation voltage generation section which generates a compensation voltage in accordance with an output current waveform of each phase of said inverter. A first dead time compensation voltage output from said first dead time compensation voltage generation section and a second dead time compensation voltage output from said second dead time compensation voltage generation section are added, and thereby, the final dead time compensation voltage is generated. <P>COPYRIGHT: (C)2012,JPO&INPIT |
