Power conversion apparatus, motor drive apparatus, blower, compressor, and air conditioner

A power conversion apparatus comprising:

• a converter circuit comprising a plurality of unit converters and converting an alternating-current voltage output from an alternating-current power supply into a direct-current voltage, the unit converters each comprising a reactor and at least one switching element;
• and
• a plurality of current detectors detecting currents flowing through the respective reactors, wherein
• in first and second unit converters adjacent to each other among the unit converters, when a first current is greater than a threshold, a phase difference between a first phase and a second phase is changed from a reference phase difference, the first current being a total current or an average current of currents detected by the plurality of current detectors,
• the first phase is a phase at a time when the switching element of the first unit converter is turned on, and
• the second phase is a phase at a time when the switching element of the second unit converter is turned on.