| 摘要 |
PROBLEM TO BE SOLVED: To reduce component breakdown voltage and stably suppress harmonics.SOLUTION: A control device 4 of an active converter 3 which removes harmonics from an input current including harmonic current flown from a rectification circuit for converting AC current into DC current has: voltage detection sections 11, 12 which detect input voltage and output voltage of the active converter 3; a correction value determination section 13 which determines a correction value which corrects detection deviations of the output voltage with respect to the input voltage which is detected by the voltage detection sections 11, 12 when the active converter 3 is in a stopped status; and a control section 14 which corrects the output voltage detected by the voltage detection sections 11, 12 with the correction value and controls boosting ratio when the active converter 3 operates. |
