| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inverter control circuit that properly improves quick response and reliability of control. <P>SOLUTION: An inverter control circuit A5 includes: gain computing means 12 and 13 which compute gain K<SB>1</SB>and K<SB>2</SB>based on the absolute value of the amount of deviation ΔP of the output effective power P of an inverter circuit; first control means 22 and 23 which quickly respond and compute a frequency correction value Δωbased on the gain K<SB>1</SB>for correcting the frequency of an AC signal to be output from the inverter circuit<SB>;</SB>and a second control means 32 which is highly reliable and computes a voltage in-phase component correction value ΔVq based on the gain K<SB>2</SB>for correcting the amplitude of an AC signal to be output. The gain computing means 12 and 13 compute the gain K<SB>1</SB>and K<SB>2</SB>so that the gain K<SB>1</SB>may be relatively larger when the absolute value of the amount ΔP of deviation is larger, and so that the gain K<SB>2</SB>may be relatively larger when the absolute value of the amount ΔP of deviation is relatively smaller. <P>COPYRIGHT: (C)2011,JPO&INPIT |
