US 12,289,062 B2
Power conversion apparatus, motor drive apparatus, and air conditioner
Takeshi Iida, Tokyo (JP); and Satoru Ichiki, Tokyo (JP)
Assigned to Mitsubishi Electric Corporation, Tokyo (JP)
Appl. No. 18/270,668
Filed by Mitsubishi Electric Corporation, Tokyo (JP)
PCT Filed Mar. 4, 2021, PCT No. PCT/JP2021/008477
§ 371(c)(1), (2) Date Jun. 30, 2023,
PCT Pub. No. WO2022/185484, PCT Pub. Date Sep. 9, 2022.
Prior Publication US 2024/0072680 A1, Feb. 29, 2024
Int. Cl. H02M 7/217 (2006.01); H02M 1/00 (2007.01); H02M 1/42 (2007.01)
CPC H02M 7/2173 (2013.01) [H02M 1/0043 (2021.05); H02M 1/4225 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A power conversion apparatus comprising:
a converter circuit to convert an AC voltage output from an AC power supply into a DC voltage, the converter circuit including circuits for the number of phases being more than one, the circuits each including a reactor and a switching element connected to the reactor; and
control circuitry to control operation of a plurality of the switching elements, wherein
in a case where a time difference between a timing of turning off a first switching element that is one of the switching elements and a timing of turning on a second switching element that is different from the first switching element is within a threshold, the control circuitry performs avoidance control for advancing or delaying the timing of turning off the first switching element, and
the control circuitry determines whether to advance or delay the timing of turning off the first switching element based on a result of previous avoidance control.