| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a semiconductor power converter in which a relatively expensive component such as an insulated amplifier is not used and detection lag is suppressed, and to provide its anhysteresis control method. <P>SOLUTION: A second adder 18 adds a voltage compensation value from a first adder 16 to an ideal sine wave command value for every cycle of a basic wave, and a corrected voltage command value is outputted to a PWM comparator 14. On the other hand, voltage compensation value of one cycle is integrated by an integrator 17 and outputted to a magnetic asymmetry control block 7. The integrator 17 is adjusted previously such that the deviation of DC voltage becomes zero under steady state where the voltage compensation value becomes zero. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
