| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an AC voltage output unit in which the voltage burden on two inverters for forming an AC voltage between neutrals, is altered. <P>SOLUTION: An AC voltage command obtained by compensating the reference value Vacr of a commercial AC voltage outputted from a multiplication section 140 in an FB control section 142 is multiplied by k(0≤k≤1) in a multiplication section 144 and outputted to a first inverter control section 62, and the remainder is outputted to a second inverter control section 63. The first and second inverter control sections 62 and 63 generate signals PWM1 and PWM2, respectively, based on voltage commands obtained by superposing an AC voltage command from an AC output control section 64 on respective phase voltage commands. <P>COPYRIGHT: (C)2007,JPO&INPIT |
