| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter power generator for converting AC into AC of a predetermined frequency, based on a PWM signal generated, using a reference sine wave of a target output voltage waveform and a carrier, and exactly correcting the reference sine wave and unfailingly outputting the harmonic distortion component from the output voltage waveform. <P>SOLUTION: The inverter power generator includes an inverter driving means for driving a switching element, based on a PWM signal generated by using a reference sine wave of a target output voltage waveform and a carrier and converting the AC outputted from the inverter into AC of a predetermined frequency. The inverter power generator calculates the effective value of a current applied to a load (S10), calculates the gain Gn of n-th harmonics of the reference sine wave on the basis of the calculated effective value of the current (S12), and corrects the reference sine wave with the sum obtained by adding the calculated gain Gn (S14-S18). <P>COPYRIGHT: (C)2010,JPO&INPIT |
